MICROS, LINEARS & DISCRETESMICROS, LINEARS & DISCRETES

ASD, IPAD, STripFET, MDmesh, FDmesh, VIPower, VIPer,PowerSO-10, PowerFLAT, SuperFREDMesh, SuperMESH,ECOPAK, TRANSIL, are STMicroelectronics trademarks.Package images are not to scale.

EXPRESS - Anno 14 - Reg. Trib. CT n°759 del 04/10/89Dir. Resp.: G. SAN BIAGIORedazione: Y. CAWTHRAWStampa: Tipo-Lito MONFORTE dmonfo@tin.itGrafica: AUGEN STUDIO info@augenstudio.it

30. BAT20J Schottky For LED Drivers

18. Electricity Metering

17. ST7538P Power Line Modem

7. Power MOSFETs In Linear Operation28. ST8024 Voltage Regulator

Analog Interface For Smart Cards

33. High Current Diodes

31. Damper Diodes For High End CRT TVs

9. New 200V Power MOSFETs

32. 200V Ultrafast Dual Diodes

27. ST1S03Switching Voltage Regulators

26. TS49941.2W Audio Amplifier

12. HD1xxxx Series Horizontal Deflection

16. STPM01Interface For Energy Metering

3. L6928DStep-down converter

34. STCC05-BD4 For AC Power Management

8. Low Profile Power MOSFETs In I2SPAK

20. Standard ICs For Wireless Applications

36. M41T6x Real-Time Clocks

22. 74VCXHQ163245 LCD Level Translator

38. STM682x Resets And Supervisors

39. ST7Lite familySmall-scale µcontroller

6. SuperFREDMesh Power MOSFETs

4. L6382DxFor µcontrolled ballasts

5. VIPer12A & VIPer22A For Lighting

10. Power MOSFETs For Power Tools

29. ESDALCP6ESD Protection in SOT-666

40. ST7232x Family8-bit µcontroller

42. ST7MC Microcontroller

14. STCCP27Interface For Camera Modules

24. TSH310High Speed Op-Amp

25. TSH3301.1GHz High Speed Op-Amp

www.st.com/industrial 33

By F. SandriniIndustrial & Power Conversion Mktg

HIGH FREQUENCY SYNCHRONOUS STEP-DOWN CONVERTER FOR PORTABLE APPLICATIONS

L6928D basic connection

High Switching Frequency: 1.4MHz up to 2MHZ → smaller passive parts (and PCB area);VIN ranges from 2V up to 5.5V → suitable for

different batteries and commonest voltage buses(3.3V and 5V);High efficiency conversion → up to 800mA DC

output in a small MSOP8;Thermal shut-down, overcurrent and overvoltageprotection → short design time for a safe application;VOUT adjustable from as low as 0.6V up to VIN

→ suitable to supply state-of-the-art ASICs and microprocessors;

Current mode control → suitable for low cost ceramic capacitors;

Low consumption and low noise mode selectableon the fly → maximum performance at any time.

L6928D Features and BenefitsL6928D Features and Benefits

L692x Synchronous Converter FamilyL692x Synchronous Converter Family

VOUT[V] FSWIOUTType

VIN[V]

L6920 (Step up)

L6925

L6926

L6928

1A (switch)

800mA

800mA

800mA

0.6 to 5.5

2.7 to 5.5

2 to 5.5

2 to 5.5

3.3 or 5 or adj.

Adj. from 0.6

Adj. from 0.6

Adj. from 0.6

Variable up to 1MHz

0.6MHz up to 1.4MHz

0.6MHz up to 1.4MHz

1.4MHz up to 2MHz

Both the technology performance and control techniquesmake L6928D a state-of-the-art switching regulator,offering simpler designs with better performance.

L6928D Typical EfficiencyL6928D Typical Efficiency

0102030405060708090

100

1 10 100 1000

Effi

cien

cy

IOUT [mA]

L6928D: VIN = 5V & VOUT = 3.3V

Low Noise Mode

Low ConsumptionMode

L6928D efficiency

All battery powered applications demand a commonset of requirements: the final application has to becompact, with the highest efficiency and with aminimum part count, while the battery life has to bemaximized. These requests have a one-to-oneimpact on Power Management ICs: besides theuseful power conversion section, they need to haveuseful embedded features, even though they havea small pin count. Maximizing efficiency and makingthe input voltage range as large as possible helpsin exploiting the battery life as long as possible.L6928D is the latest of a product family designedwith specific features to fit portable applications.

The L6928D is a synchronous monolithic step downconverter (2 low RDS (ON) MOSFETs integrated),able to work from 1.4MHz up to 2MHz switchingfrequency. The very high switching frequency allowsthe use of smaller, low cost passive parts (inductorand capacitors), while additional functions like shut-down, synchronization capability and power goodare embedded. The control architecture maximizesefficiency at any load, and the designer can alwayschoose between “low noise” and “low consumption”control mode: this makes the L6928D suitable alsofor noise sensitive environments.

VIN=2.7V to 5.5V

CIN10 F6.3V

L6928D

VCC

SYNC

RUN

LX

PGOOD

VFB

COMPC220pF

L=4.7 H

VOUT=from 0.6V up to VIN

COUT10 F6.3V

www.st.com/lighting 44

By F. Sandrini & Luca SalatiIndustrial & Power Conversion Division

POWER MANAGEMENT UNIT FOR MICROCONTROLLED BALLAST

L6382Dx system block diagram

L6382Dx manages 4 different states in order to supplythe microcontroller in the most efficient way using theproper power source.These modes are: start-up mode, save mode, operatingmode and shut-down. Their names refer to the statusof both the microcontroller and the drivers.

L6382Dx Power ManagementL6382Dx Power Management

L6382Dx power management state diagram

The HV start-up block is the circuitry through which the L6382Dx supplies itself and the µC. However inthe operating mode, where the charge pump regulatoris preferred (because of efficiency and thermaldissipation issues), the µC supply currents aredifferentiated according to the different working modes.The PMU implements this mechanism in order to keepthe µC alive and able to control the overall applicationstatus to ensure a safe application design, and tominimize the overal l power dissipation.L6382Dx reduces the application bill of materialsbecause many different tasks (regarding drivers andpower management) are performed by a single IC,which of course improves the application reliability.

PROTECTION

CHARGEPUMP

REGULATORHV

START-UP

PFCDRIVER

3.3V or 5VSUPPLY

HBDRIVER

BOOTSTRAP

PFCCIRCUIT

ACMAINS

CST7LITE series

START-UP

SAVE MODE SHUT-DOWN

OPERATING MODE

Digital Platform ChallangesDigital Platform Challanges

The electronic ballast market has undergone dramaticchanges over the last few years; it has moved fromall analog very differentiated applications, made bya collection of drivers and controllers plus a widespreaduse of custom ASICs, to a couple of standard platforms.Basic building blocks are still the same: a power factorcorrector stage plus an inverting high voltage stage.On one hand we now have an analog platform to targetlow cost/basic performance applications. Its mainbuilding blocks are widely used and well known ICssuch as Power Factor Corrector (L656x) plus an highvoltage ballast controller (L6569x/ L6571x/ L6574).On the other hand a new digital platform concept hasgained more acceptance. A microcontroller plus asimple half bridge driver (L638x) have replaced theballast controller. This platform is used mainly for high-end applications, especially where the µC has to dealwith communication tasks (i.e. using Dali protocol).

New issues concerning the digital platform havearisen. How to power efficiently all the ICs (PFC,µC, driver) in all conditions and how to make theµC drive the MOSFET (both half bridge ones andPFC one) without using too many different drivers.This means how to rationalize the systempartitioning. L6382Dx ICs are designed to fulfil theseneeds: they include 3 MOSFET driving stages (forPFC, for the half bridge, for the preheating MOSFET)plus a power management unit (PMU) able to supplythe microcontroller in any condition.

www.st.com/viper 55

By G. Di StefanoVIPower Industrial Marketing

VIPer12A AND VIPer22A THE IDEAL SOLUTION FOR LIGHTING APPLICATIONS

VIPer22A driving an array of high brightness LEDs

VIPer12AS / VIPer22AS Driving HB LEDsVIPer12AS / VIPer22AS Driving HB LEDs Input voltage range: 85Vac to 130Vac or 185Vac to 265Vac;

Nominal Output Voltage Range (1 to 8 LEDs):3.5V to 28V;Maximum output voltage at open load: 32V;Constant output current: 350mA;Dimming range: 0% to 90%;EMI compliant with EN55015.

Main FeaturesMain Features

Unlike most VIPer applications in this case the auxiliarywinding on the primary side is connected in a forwardmode in order to manage an output voltage rangefrom 3.5V up to 28V. The application schematic hasbeen realized for the European voltage mains range(185Vac to 265Vac), but it goes without saying thatby modifying the input voltage and realizing a voltagedoubler the U.S. voltage range can also be applied.The non-dimmable solution can be realized very easilyby eliminating the dimming control circuit and theTSM104 component can be replaced by the simplerTSM1011.For more information see application noteAN2042 VIPower: Dimmable driver for high brightnessLEDs with VIPer22A.

During the current year the VIPer12A and VIPer22Ahave been extremely successful in the consumersegment in applications such as, stand-by powersupplies, digital TV receivers, adaptors and batterychargers. The market has recognized the innovationand quality of these smart power monolithic SMPSin VIPower M0-3 technology. However, it is littleknown that these devices are also highly suited tothe lighting applications.The VIPer12A and VIPer22A have been validatedin basic lighting applications such as, auxiliary powersupplies for video projector beamers (H.I.D lamps),emergency lighting battery chargers and powersupplies for micro-controller managed lighting. Inaddition an innovative design has been developed,using both VIPer12A and VIPer22A, to drive and todim an array of High Brightness (H.B.) LEDs.

In the proposed schematic showing VIPer22Adriving an array of H.B. LEDs both the supply andthe dimming of the LEDs array is realized. Thechoice between VIPer12A and VIPer22A depends strictly on the output power managed. VIPer12Ais indicated for an output power in the range of10W for greater power up to 20W the right deviceis the VIPer22A.

TSM104

Vcc

VIPer22A

Vcc

++ +

+

+

V

www.st.com/pmos

By M. L. PetraliaPower MOSFET Technical MKTG

ADVANCED SuperMESH POWER MOSFETs WITH FAST RECOVERY BODY DIODE

The first MOSFETs realized utilizing this new high-voltage advanced process show, along with optimaldynamic performance, optimized body diode reverse-recovery time (trr) and very soft recovery. All thesefeatures help reduce switching losses.These benefits are coupled to a low on-resistanceand high dv/dt immunity and cost competitivenesscharacterizing the whole SuperMesh family.The STW29NK50ZD is a 500V device suitable forhigh power ZVS bridge SMPS.The STP9NK60ZD handles 600V and is available inTO-220, TO-220FP and D2PAK. It handles up to 30W,while the STB9NK60ZD and STP9NK60ZD eachhandle up to 125W. Its typical application is for notebookadapters in half-bridge configuration.The STE45NK80ZD and the STE40NK90ZD handle800V and 900V respectively, and are suitable forwelding and very high power ZVS SMPS topologies.

First SuperFREDMesh devicesFirst SuperFREDMesh devices

Body Diode Reverse Current, IRM

di/dt

IFM, Body Diode Forward Current

trr

a b

10% of IRM

RDS(on) typ[mΩ]120

850

110

140

Trrtyp[ns]

P / N Package Production

STW29NK50ZD

STP9NK60ZD

STE45NK80ZD

STE40NK90ZD

500

600

800

900

BVDSS[V]

TO-247

TO-220

ISOTOP

ISOTOP

Q1'05

In production

Q1’05

Q1’05

150

194

TBD

TBD

Product RangeProduct Range

ZVS Resonant SMPSZVS Resonant SMPSThe challenge of modern power supplies is to achieveever-increasing efficiency at higher frequencies. Theseconflicting requirements can also be seen as a trade-off between thermal issues and noise problems.A special technique, developed to this purpose, utilizeszero-voltage transition to minimize switching lossesand radiated noise. The phase-shifted ZVS (zero voltageswitching) mode of operation, associated with bridgecircuits, is achieved by imposing a resonance in theswitching transistor circuit that causes the voltage acrossit to decrease to almost zero before the switching onof the device; as a result, switching losses are greatlyminimized. In particular, in topologies such as bridgeconverters, it is required that the MOSFETs have a fastbody drain diode. In fact, if the reverse recovery chargehas not been removed before turning off the MOSFET,the body diode is not be able to block the reversevoltage. Therefore, if the remaining charges are still inthe junction during the turning-on of the other MOSFETof the same leg of the bridge, its body diode may besubjected to dv/dt stress. Another failure mode occursat low or no load conditions due to the loss of the ZVSoperation. In this condition the ON-MOSFET is turned-off at hard-switching conditions. Such an occurrencecauses a Cdv/dt shoot-through current to create avoltage spike at the gate of the OFF-MOSFET on thesame bridge leg leading to device premature failure.

A new advanced high Voltage MOSFET technology hasjust been introduced. It is directly derived from the well-established high voltage SuperMESH series with a newcarrier lifetime control technique. This new technology,called SuperFREDMesh, is the perfect match for HIDlamps, high-end ballasts and switch-mode powersupplies that use zero-voltage resonant switching.

www.st.com/pmos 77

By G. Bazzano / G. Consentino / R. GulinoPower MOSFET Marketing

NEW LOW VOLTAGE POWER MOSFETS EXCEL IN LINEAR-MODE APPLICATIONS

A typical motor control application using STP140NF55

Planar TechnologyPlanar TechnologyThe MOSFET’s ability to overcome a thermal stressrelated to linear operation is strongly dependentupon its physical structure. It has been observedthat the latest competitors’ “Trench” technologiesdesigned for ever-decreasing on-resistance areextremely weak when used in the linear zone.ST’s planar technologies are much more suitablethan Trench variants in yielding robust devices.This statement can be demonstrated by analyzingthe variation of the threshold voltage as temperatureincreases. In ST’s planar technology this parameteris less prone to decrease with temperature.This in turn implies that the drain current rise islimited more easily, making the MOSFET lesssusceptible to thermal runaway.

It has been shown that power MOSFET devices likethe STP130NS04ZB and the STP140NF55 realizedusing an optimized version of STripFET behavesignificantly better than similar devices from competitionas proven by a detailed analysis of the thermalcoefficient behaviour.

FeaturesFeatures

ApplicationsApplications

Electrical CharacteristicsElectrical Characteristics

Typical applications in linear mode are encounteredin automotive applications such as fan motors orin industrial where they can be employed in UPSconverters.

175°C as maximum operating temperature;Higher current capability;Standard threshold devices;100% avalanche tested;Optimized for linear mode operation.

The parameter measuring how well or bad a MOSFETis in linear mode can be identified by the thermalcoefficient. It in fact represents the rate of change ofdrain current caused by an increase in temperature.It is sometimes normalized with respect to the chiparea to allow benchmark ing with other devices.

In this schematic, a DC voltage supplied by a batterydrives a motor in series with two power MOSFETdevices connected in parallel on the same heatsink.The two MOSFETs work in the linear zone and, actingon the gate-source voltage, it is possible to fix the drain-source voltage. Consequently the voltage across themotor terminals is established by the differencebetween the battery and the drain-source voltages.The regulation is performed by a suitable driver thatchecks the current flowing in the MOSFETs andestablishes the right gate-source voltage.

M

Driver

Battery-

+Battery

Rshunt

STP140NF55

same heatsink

STP140NF55

Product RangeProduct Range

RTHJ-C[°C/W]

D2PAK TO-220D2PAK

TO-220 TO-247

0.5

0.5

RDS(on)max[mΩ]< 8

< 9

IC[A]P / N BVDSS

[V]

120

80

STx140NF55

STx130NS04ZB

55Clamped@ 33V

Package

It is well known that in some applications PowerMOSFETs must operate inside the linear zone, thatis the area of the output characteristics ID vs VDS

with high current and voltage values. Such mode ofoperation differs from the traditional way of usingMOSFETs which are normally made to function like“switches”, that is, in on-off switching mode.When used in linear mode, MOSFETs are subjectto thermal stresses in low drain current conditionsand current crowding phenomena is involved. Froma datasheet standpoint, this involves a reduction inthe forward-biased safe operating area (FBSOA).

www.st.com/pmos 88

By D. IfurungPower MOSFET Product Marketing

HIGH PERFORMANCE SuperMESH IN I2SPAK & TO-220

SuperMESH “NK” With Best RDS(on)SuperMESH “NK” With Best RDS(on)

Until recently the TO-220/FP was the preferred packagefor Power MOSFETs in adaptor applications. However,due to the high power density / lower profile adaptorrequirements, designers are now looking for alternativesolutions. Hence, the new I2SPAK offers a lower profilefeature for the designer whenever height becomes aconstraint.

I2SPAK Versus TO-220/FPI2SPAK Versus TO-220/FPId max[A]

RDS(on)[Ω]

Qgtyp[nC]

Suffix -S indicates I2SPAK

SuperMESH Vs CompetitionSuperMESH Vs Competition

Fairchild Fuji STParameterBVdss (V)RDS(on) (Ω)Qg (nC)

5000.5242

5000.265

42

5000.3832

5000.2785

Toshiba

BVdss (V)RDS(on) (Ω)Qg (nC)

6000.7545

6000.4936

6000.5433

6000.4286

BVdss (V)RDS(on) (Ω)Qg (nC)

---

6501.42.8

---

6500.5086

BVdss (V)RDS(on) (Ω)Qg (nC)

8002.234

8001.540

8001.925

8000.7587

I2SPAK height is ~4.93mm less than TO-220’s;I2SPAK has short leads, thus lead trimming processis not required;I2SPAK allows the clip to assure an evenly

distributed pressure with the external heatsink thattranslates into a better thermal contact;I2SPAK could become “the package” for high powerdensity / low profile adaptors.

I2SPAK BenefitsI2SPAK Benefits

A BREFERENCEDIMENSION

A

B

16.7

13.82

17.5

14.42

mmTYP MIN MAX

I2SPAK

TO-220

I2SPAK

P / N

STP20NK50ZSTB20NK50Z-SSTP16NK60ZSTB16NK60Z-SSTP16NK65ZSTB16NK65Z-SSTP12NK80ZSTB12NK80Z-S

500

600

650

800

17

14

13

10.5

0.27

0.42

0.50

0.75

85

86

86

87

Over the years power handling capability has beencrucial in the evolution of SMPS. In order to meet the requirements of more compactness, higher powerand lower profiles, numerous product developmentsand package innovations have been seen.Since efficiency, reliability and cost have always playeda binding role in all SMPS designs, ST is expandingits SuperMESH HV devices in both TO-220 and I2SPAKpackages to meet these requirements. It featuresSuperMESH’s ultimate RDS(on) values which are ona par, or even better than the best TO-220 competitionequivalents in the standard technology arena.

The tables above and below show RDS(on) valuesof our SuperMESH devices.

V(BR)DSS[V]

www.st.com/pmos 99

By G. Bazzano, M. Micciché & G. PignataroPower MOSFET Marketing

NEW MEDIUM VOLTAGE POWER MOSFET TECHNOLOGY IMPROVES SYSTEM EFFICIENCY

Elementary contributions to the total RDS(on)

Greater Overall EfficiencyGreater Overall Efficiency

The exceptional RDS(on) is obtained through differentsteps:

The edge structure optimization with a better epitaxial specification improves RDS(on).

The JFET optimization implies a modification ofthe layout in order to enhance the density of theequivalent cells, further reducing the RDS(on).The reduced total Qg makes this device suitable

for high frequency switching operation.At the same time the switching performance hasbeen improved by implementing a new gate oxidestructure for a resulting low input capacitance andtotal gate charge.

Product RangeProduct RangeTraditional STripFET

Channel Per./Area

Ron * Area

Ron * Qg

NEW STripFET

10.5 m/cm2

18 mΩ * cm2 @ 10V

7614 mΩ * nC @ 10V

17 m/cm2

10.4 mΩ * cm2 @ 10V

2430 typ mΩ * nC @ 10V

PARAMETER

ApplicationsApplicationsThe Power MOSFETs created with this newtechnology are used primarily as primary switchesin forward, half-bridge bridge or push-pull powerconverter topologies for power modules in telecom,datacom and networking systems.Moreover, the excellent electrical performances alsomake them ideal for UPS and UHP lamps.

VDS(on) max[mΩ]

DPAKSO-8DPAK

TO-220

70013012045

Qg typ

[nC]

5 @ 5V2127

100

The table below shows a comparison betweenthe traditional 200V STripFET process and thenew one.

Product ComparisonProduct Comparison

New STripFET figure of merit (Ron x Qg) shows a lowervalue than competition

P / N

STD5N20LSTS3N200STD20N20STP40N20

The need to provide system designers with a completeproduct portfolio has led ST to extend its mediumvoltage product range. A new 200V technology hasbeen specifically developed to match the requests forthe lowest RDS(on) and Qg. This technology representsa turning point when compared with the previousgenerations. Parts made with this new technology canbe identified by the letter "N" inside the salestype.

This new process, is based on ST’s successfulproprietary planar technology. The silicon designoptimization has brought an overall increase in theefficiency due to the reduced conduction andswitching losses.In fact, the RDS(on) is about 42% smaller than theprevious technology, while the figure of merit is anoutstanding 68%.

Package

8200

7200

6200

5200

4200

3200

2200

1200

200FO

M R

on *

Qg

[mΩ

* n

C] Traditional

STripFET

NewSTripFET

IRSiliconix

Rj

Repy

Racc d

N-

www.st.com/pmos 1010

By M. SgroiPower MOSFET Product Marketing

A COMPLETE CHOICE OF PRODUCTS FOR HAND-HELD TOOLS

Brief Application DescriptionBrief Application DescriptionDC motor control in power tool applications, consistsof a supplied battery voltage which ranges from 14.5to 24V, plus a PWM controller that drives the MOSFET.There are two different ways to run the application:with the motor switched ON or OFF.

Motor Switched off;In this case there is no connection between the systemand the battery.

Motor Switched on;In this case the motor has to work at different speeds,with the battery connected to the system and thecontroller driving the MOSFET so that the rotationspeed of the motor can be changed.Two stressful modes of operation can be identifiedfor the MOSFET:

Full rotation speed;When no current is flowing through the transistor.

Blocked rotor;When the current intensity through the motor and thetransistor is very high, causing large scale powerlosses due to the conduction status.Since these severe working conditions could damagethe MOSFET the right device must have a ruggedtechnology and a very low RDS(on) in order to minimizethe conduction losses.

ST’s Main Product Portfolio for Power ToolsST’s Main Product Portfolio for Power Tools

Id[A]

RDS(on)max 10V

[Ω]

Qgtyp[nC]

The Protected Approach For Harsh ConditionsThe Protected Approach For Harsh Conditions

Power tool application schematic

Battery

VCC

CONTROLLER

Motor

BypassSTP62NS04Z

+

P: indicates TO-220 D: indicates DPAK

P / N

STD150NH02LT4STD100NH02LT4STP62NS04ZSTP80NF03L-04STP80NF55-06STP80NF55-08STP150NF55STP60NF06STP60NF06LSTP45NF06STP75NF75

2424333055555560606075

1506062808080

12060603875

0.00350.00480.0150.0040.0060.0080.0060.0160.0140.0280.011

696234

150140115140496543117

The power tools market, and in particular that of hand-held tools such as electronic drills, is expanding rapidly.Tool makers continually strive to increase the overallefficiency in terms of space, weight, and powerdissipation of their instruments while at the same timekeeping the final product at a very low cost.A key design hint that permits the best trade-off betweenelectrical performance of the power switch and costcompetitiveness, is to use low voltage, low currentdevices that are suitably rugged to meet the stressfulworking conditions of this application.ST today offers a product portfolio which includes thewell known ‘EHD2’ technology while offering a newinnovative solution that represents the “protectedapproach”.

One of the most severe tests for electronic drills isto evaluate the transistor’s performance with the rotorblocked. In this case the rotor remains fixed for aminimum time of 20 seconds, while the MOSFET isrunning at the maximum duty cycle with very highcurrent and voltage (about 75A, 50V).

BVDSS[V]

M

Product ComparisonProduct Comparison

STP62NS04Z turn-off energy with active clamping

1111

The new STP62NS04Zwith zener, is producedfol lowing the MESHover lay process. I tcombines a very lowRDS(on ) w i th ex t raruggedness due to ahigher level of gate oxide.

Id[A]

RDS(on)max 10V

[Ω]

Qgtyp[nC]

The integrated zener both protects againstundesired voltage spikes and actively clamps atturn-off.The main features are:

RDS(on) typ: 0.0125Ω;175°C max junction temperature;Low gate charge.

STP60NF06 turn-off energy without clamping

Turn-onPower

[W]

ConductionPower

[W]

TotalPower

[W]

Best Cost-Performace Trade-OffBest Cost-Performace Trade-Off

VCS(sat)

ID

VGS

VDS

Power

Comparison Between MOSFETs in Power ToolsComparison Between MOSFETs in Power Tools

P / N

STP62NS04Z 33 62 0.015 34

P / N

STP62NS04Z

STP60NF06

13.48

12.7

7.84

4.34

39.74

50.96

61.06

68

To compare the performance of the new protectedSTP62NS04Z with an older product like STP60NF06,a DC motor taken from a common electronic drill waspowered at a voltage of 18V at room temperature.The easiest way to evaluate their performance is toconsider the energy losses of the MOSFET underworking conditions. The stressful condition of a blockedrotor was simulated.

BVdss[V]

From the waveforms related to STP62NS04Z, it isclear that if during the turn-off the device reachesa VDS close to 40V, its active clamp leads to a newturn-on due to the integrated zener diodes.From the energy measured it is easy to evaluate thepower losses by consulting the table below. The totalpower dissipation of the STP62NS04Z, has beenreduced by approximately 11%.

Turn-offPower

[W]

ST today offers not only a basic product kit for allhand held tools, but also a new protected approachin order to guarantee the best cost-performacetrade-off.In the hand-held tool application the new STP62NS04Zhas many benefits:

Lower cost solution compared to the existing one;Total Power losses reduction;Lower RDS(on).

D

S

GVGS

ID

Power

VDS

www.st.com/bipolar 1212

By M.PuglisiBipolar Product Marketing

HIGH VOLTAGE TRANSISTORS FOR HORIZONTAL DEFLECTION IN ULTRAHIGH RESOLUTION CRT DISPLAYS

EHVS1 TechnologyEHVS1 TechnologyThe EHVS1 is a planar technology realized by afloat-zone collector on a diffused substrate with are-designed high voltage edge structure. The siliconefficiency has been significantly improved thanksto the reduction of the capacitance in the base-collector junction by adopting a special deep-baseprocess. As a result, devices belonging to the HD1series are able to sustain very high breakdownvoltages and at the same time exhibit both highcurrent capability and high switching speeds.

The table below lists the initial product range and theshort term road map of this new series.

Wide range of optimum drive conditions;Less sensitivity to the variation of the operatingtemperature;Improved R.B.S.O.A for safer switching

performance;Reduced saturation voltage at high current;High performance 1700V products.

Main Features of HD1xxxx SeriesMain Features of HD1xxxx Series

High-End CRT Display RoadmapHigh-End CRT Display Roadmap

Reduced Power LossesReduced Power LossesHorizontal deflection requires an application specificcharacterization to describe the input requirementsneeded to minimize the power losses. The followinggraph shows the power losses versus the variationof the base current (IBon) at a fixed output current of12A and a switching frequency of 32kHz; theseconditions represent the worst case conditions in widescreen 100Hz TVs. A comparison with the mostadvanced device from competition shows the betterperformance of HD1750FX (about 1W less).

All products are rated at 1500V and 1700V, and willalso be offered in the big “jumbo” TO-264 packagethat offers higher power dissipation capability thanISOWATT218FX.

IC(sat)[A]

9

12

12

16

P / N Package StatusTarget Use

HD1520FX

HD1750FX

HD1750JL

HD1530FX

HD1530JL

HD1760JL

1500

1700Samples

Samples

Samples

SamplesQ2’ 05

SamplesQ3’ 05

1500

1700

The boom in multimedia activities has brought withit the demand for larger and “real-flat” screen sizesfor high quality images. As a result, more and morestringent performance is requested from the switchesused in the horizontal deflection stage. A new productrange specifically developed to respond to the needsof this high-end market has just been introduced.

The new HD1xxxx series has been designed byadopting a new advanced silicon technology knownas Enhanced High Voltage Structure (EHVS1).The new EHVS1 technology represents a stepforward in the optimization of the trade-off betweenthe on and switching losses. In fact, thanks to thehigher switching frequency and lower on-lossesoffered by the new products it is now possible tofocus on high-end digital TVs, rear-projection TVs,as well as highly-professional monitor displays suchas those required for medical applications, or high-resolution CRT displays, working at high horizontalfrequencies (over 100kHz).

VCES[V]

ISOWATT218FX

ISOWATT218FX

TO-264

ISOWATT218FX

TO-264

TO-264

Pre-Production100Hz TV up to 34”

100Hz TV up to42” Rear-project

& Digital TV ≈95kHz19” monitor

100Hz TV up to42” Rear-project

& Digital TV ≈95kHz19” monitor

≈130kHz 21”monitor Rear-project

& Digital TV

1313

Part Numbering DescriptionPart Numbering Description

ICVCE

IBon

E

A Cooler More Reliable SystemA Cooler More Reliable SystemThe HD1750FX requires a lower base current thusreducing the power dissipation in the passivecomponents used in the deflection block, this makesthe system a lot cooler and more reliable. It is worthnoticing also that the HD1750FX can operate with alarger IBon range to ensure the best driving conditions,minimizing as a result the normal hfe variation withtemperature. The figure below shows the switchingwaveforms during an application test performed on acommercial wide real-flat screen TV working at aswitching frequency of 32kHz.

Application oriented switching waveforms

The HD1750FX shows satisfactory performancealso at 100kHz confirming its suitability also inhigh-resolution 19” monitors as shown in the lossesbehaviour graph. This curve is for the ISOWATT218FXpackage while even better performance can beachieved with the same device housed in TO-264.

HD1750FX power losses behaviour

Safe operating area of HD1520FX

17 xx D

High Definitiontransistor

f = 100kHz IC = 6.5A Ly = 90 H Lbboff = 0.25 H Vcc=155VVbeoff = -2.7V Csn = 13.6 nF Vfly = 1220V Rth = 3.5¡C/W

Conditions:

Power losses curves comparison

I C [A

]

Vce [V]

02

22201816141210

864

0 1600200 400 600 800 1000 1200 1400

hFE = 5 Lbboff = 1.9 H Vbeoff = -2.5V L = 200 HConditions:

HD FX/JL

Since the new series has been developed specificallyfor horizontal deflection, the part numbers follow thescheme below.

Built-in diode(if present)

FX: ISOWATT218FXJL: TO-264 (Jumbo)

f = 32kHz IC = 12A Ly = 160 H Lbboff = 0.8 H Vcc=155VVbeoff = -2.7V Csn = 18.2nF Vfly = 1320V Rth = 5.5¡C/W

Conditions:

1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.59.009.50

14.0013.5013.0012.5012.0011.5011.0010.5010.00

Ibon [A]

P [W

]

HD1750FX

2SC5588

IBon [t]0.6 0.7 0.8 0.9 1.61.51.41.31.21.11.0

8.00

9.00

10.00

11.00

12.00

13.00

P [W

]

R.B.S.O.AR.B.S.O.ABeside the features that characterize this technologythe HDxxxx series also exhibits a larger RBSOA,offering additional security during turn-off, where thedevice could be overstressed by the high fly-backvoltage and the high current which are both presentin anomalous conditions.

HD1750FX

15 = 1500Vor

17 = 1700V

2-digit deviceidentification

HD1520FX

www.st.com/interface 1414

By N. MythreyiMarketing Development Digital ICs

VIDEO DE-SERIALIZER FOR SERIAL CMOS CAMERA MODULE

General application block schematic

Compact Camera Port DecoderCompact Camera Port DecoderThe STCCP27TBR receiver converts theSubLVDS clock/data stream (up to 208Mbpsthroughput bandwidth) back into parallel 8bits of CMOS/LVTTL.

In order to minimize static current consumption, itis possible to shut down the device when theinterface is not being used by a power-down (EN)pin that reduces the maximum current consumptionto 10µA. This low current consumption in powerdown state is another feature that makes it ideal forportable applications like mobile phones and PDAs.

Two dedicated I2C lines are provided to translatethe bidirectional controls from the camera to theprocessor. In detail, the 1.8V sensor controlsettings can be driven using the 2.8V I2C linescoming from the baseband processor without anyexternal discrete components like 10kΩ (typically)pull-up resistors.

The device recognizes the CCP 32 bit start - of -frame (SOF), end-of-frame (EOF), start-of-line (SOL)and end-of-line (EOL) sequences to generate theH-SYNC and V-SYNC signals.

Low Power ConsumptionLow Power Consumption

STCCP27 is a low voltage (1.8V), high speed,Compact Camera Port (CCP2.0) decoder with dualdifferential line receivers. The CCP2.0 decoderincludes I2C control lines.

In general, baseband/multimedia processors formobile phones come with a parallel interface. Twomajor issues with such parallel interfaces are theexcessive generation of noise of the parallel bus,and the large number of wires that have to be routedacross the hinges/connectors of the clamshellmodels. This chip provides an ideal means ofovercoming the above constraints and links thecamera module with the baseband/multimediaprocessor with minimal noise and wires.

It is a very useful solution for the new generation ofSmart Phones where double sensors are usedindependently for still pictures and video calls.

Serial CameraModule CCP STD

Color DisplayLCD Controller

Flip Board (Clamshell Model)

STCCP27

Base BandProcessor2.8V I/O

AudioCODEC

Multi Media

Processor

Parallel CameraModule 8,10,12 bit

COLORLCD

DISPLAY

Functionality Application DetailsFunctionality Application Details

1515

Application block diagram

Sub-Low Voltage Differential Signaling (subLVDS)Inputs: VD = ±150mV; VC = 900mV;High data rate: DR=208Mbps, fIN-MAX=416MHz;Operating voltage and I/O reference voltage:

VDD=2.65V to 3.60V;Bidirectional I2C level Shifter from VDD andVL: VL=1.65V to 1.95V;Low power consumption: IDD+IL=10µA (disabled);Lead-free µTFBGA package.

FeaturesFeatures

Ordering CodesOrdering Codes

Datarate

µTFBGA25208Mbps

650Mbps

I/O signals

2.65V - 3.6V

1.65V - 1.95V

*Under Development

ESD ProtectionESD Protection

Innovative Package µTFBGA25Innovative Package µTFBGA25

P / N

STCCP27TBR

STSMIA832*

The device packaging is especially designed withminimum dimensions to suit the space-constrainedimplementations in mobile phones. It is packagedin an innovative µTFBGA25 package with

a pitch of 500µm. TheSTCCP27TBR is now

available in a 3mmx 3mm, 25 pin,µTFBGA lead-

f r e e p a c k a g e(RoHS Compliant –

Restriction on HazardousSubstances). It will be shipped in standard 7” reelswith 3000pcs per reel.

All inputs and outputs are equipped with protectioncircuits against static discharge, giving them ESDimmunity from transient excess voltages. TheSTCCP27 is characterized for operation over thecommercial temperature range of -40°C to + 85°C.

VL 1.8V VDD 2.8V

Parallel DataCamera Sensor

I2C 1.8V

Gnd

Level shifting1.8V/2.8V

EN

Sync_sel

V-SyncH-Sync

Clk

Bas

eban

dP

roce

sso

r

I2C 2.8V

8

Gnd

CCP

D+-D+Clk

Clk -

Package

The device supports two different modes of functioning;formatted (ENABLED_SYNC) and unformatted(DISABLED_SYNC) transmission of data on the datalines based on the selection of the SYNC_SEL controlpin by the Baseband processor. The two modes differin the way the Baseband processor recognises theImage/Video byte positioning.

In the ENABLED_SYNC mode (SYNC_SEL = VL),the Horizontal Sync and Vertical Sync signals areextracted from the serial input data stream beforetransmitting the 8-bit video/pixel data on the paralleloutput, D1-D8 in STCCP27. Instead the extractedHorizontal and Vertical sync signals are thentransmitted separately. This mode is meant for simplerbaseband/multimedia image processors to maketheir image processing easier.

In the DISABLED_SYNC mode (SYNC_SEL = Gnd),the timing signals (HSYNC and VSYNC) are notextracted from the input data stream, basebandprocessor recovers the timing information from theembedded sync words (SOF, EOF, SOL, EOL) inthe 8-bit parallel data output.

STCCP27

3mm

3mm

www.st.com/interface 1616

By S. RannoInterface Marketing Development

PROGRAMMABLE SINGLE-PHASE ENERGY METERING IC

STPM01 general block diagram

The STPM01 also has several added features like:Live and neutral wires current monitoring for tamperdetection for secure energy meters;LED driving for visible information about power,tamper detection and no-load conditions;Zero-cross sine wave current signal available,allows turn on/off of heavy inductive loads avoidingarcing phenomenon (automatic control applications).

STPM01 FeaturesSTPM01 Features

The advanced BiCMOS technology allows the STPM01to reach high performance in terms of accuracy,allowing the support of IEC62052-11, IEC62053-2Xspecifications for single-phase class 0.5 watt meters.

The OTP block has a complete set of configurationand calibration bits. It allows the fast and accuratecalibration of voltage and current sensors, phasecorrection and temperature drift. ST has developeda control software with PC interface, allowing datato be read from the STPM01, controlling, andcalibrating data.

Two demo boards are also available: one is for theSTPM01 as a stand-alone solution for stepperdriving; the other is a complete solution with thesame stand-alone module coupled via SPI with acontrol board equipped with ST7 MCU, LCD displayand RTC for medium / high-end applications.

td

nlc

aclk

master clock

vbg vrefpwr onreset

VCC

VDDD

VDDA

SYN-NPWR

SCS

SDA-TD

SCL-NLC

IIP1

IIN1

IIP2

IIN2

VIPVIN

CLKIN

CLKOUT

MOP

MON

LED

VSS

VOTP

npwr

PGA

DSPPwrto

PulseRate

48-bit OTPBlock

MUX2:1

Oscillator

Σ∆A / DConv

SPI Interface

VoltageReference Low Drop Voltage

Regulators andPower On Reset

The flexible and configurable analog front-end allowsthe use of different current sensors like Rogowski coils,current transformers and micro-Ω shunts. The STPM01is provided with two internal low drop voltage regulators,which supply the analog and the digital sectionsseparately, for high precision and stability. An internalDSP computes the sampled signals coming from theanalog front-end, and provides all the data (like active,reactive and apparent powers, RMS voltage and current,line frequency) through a SPI which is used also tocontrol, configure and calibrate the device in a veryfast way (by means of a one-time-programming block).The computed powers are also provided by the DSPto an internal driving stage which allows direct drivingof different kinds of stepper motor displays(electromechanical) for low-cost energy meters. TheSPI is used also to connect the device to microcontrollers.In this case it acts like a peripheral device, simplysupplying data to the micro which is responsible fordata collection and management (high-end meters withimplemented features like LCD display driving, date/timeevent recording, multi-tariff, data transmission, etc.).

STPM01 DescriptionSTPM01 DescriptionVery Fast And Easy ControlVery Fast And Easy Control

Promotional ToolsPromotional Tools

STPM01

The STPM01 is designed to be the core of variousenergy metering architectures. Its flexibility allowsthe creation of several metering solutions, from lowcost to high-end ones.

www.st.com/metering 1717

By G. Privitera / L. RodeschiniEmerging Markets - Industrial & Power Conversion

POWER LINE MODEM FOR AUTOMATIC METERS

AMR system architecture block diagram

Power Line ModemPower Line ModemWith physical media being the power line cablethemselves, suitable “communication devices” knownas Power Line Modems (PLMs) are required. Theyactually convert and convey a binary data stream intoa sequence of signals with predefined characteristics(frequencies, levels) and can also detect at the receivingend electrical signals and convert them back into thebinary data stream.

ST7538P the Newest PLM From STST7538P the Newest PLM From STThe ST7538P, incorporates, a Frequency Shifting Key(FSK), modulation / demodulation circuitry and a verylow distortion, high-current power line driver. Theseare all aimed at helping reduce the part count, boardspace and overall time to market. The modem can beintegrated into an existing static meter main board, byconnecting it to a few general purpose I/Os of themicrocontroller and to the Power Line, through aninexpensive coupling network. While meeting therequirements set by international regulation bodies,such as CENELEC for Electro Magnetic Compatibility,

the ST7538 offers a broad range of settings to fit thespecific requirements of the Physical and Media AccessControl -MAC- layer being used. This makes it suitablefor a wide variety of industry standards as well asproprietary protocols.

ST7538 internal block diagram

Half duplex Frequency Shift Keying (FSK) transceiver;

Integrated power line driver with programmable voltage and current control;

Synchronous or asynchronous microcontroller interface;

Single 7.5 to 12.5V supply voltage;Very low power consumption (Iq=5mA);Integrated 5V, 100mA short circuit protectedvoltage regulators;8 programmable transmission frequencies;Programmable BAUD rate from 600 to4800BPS;Receiver sensitivity 1mVRMS;Carrier or preamble detection;Band-in-use detection;Programmable register with security checksum;Line voltage zero crossing detection and

synchronization;Watchdog timer;10x10x1.4mm TQFP44 with copper slug package.

FeaturesFeatures

Automatic meter reading, or AMR, is a rapidly growingsector of the metering industry. It is a host-driven, multi-level network consisting of a Host Central Station(HCS), Data Concentrator Units (DCU) and MeterInterfacing Units (MIU).

CD/PD

RXD

CLR/T

REG/DATA

RXTX

TXD

REGOK

OSC TIME BASE

XOUT XIN WD TOUT RSTO MCLK ZCIN ZCOUT C_OUT CMINUS CPLUSD03IN1407

SERIALINTERFACE

CARRIERDETECTION

PLL DIGITALFILTER

FSKDEMOD

IFFILTER

TEST BU

FILTER

AGC

AMPL

FILER

CURRENTCONTROL

VOLTAGECONTROLALC

TXFILTERDAC

CONTROLREGISTER

FSKMODULATOR

ZC OP-AMP

PLI

VREG

RAI

CL

VSENSE

ATO

ATOP1

ATOP2

PAVCC

VDC

PG

TEST1TEST2 TEST3 BUDVDD AVDD DVSS AVSS RXFO

ST7538P

www.st.com/metering 1818

By L. MontanaroCentral Market Development

& G. Di MarcoMetering-Golden Application

A COMPREHENSIVE APPROACH TO ELECTRICITY METERING

ArchitectureArchitecture

General functional block diagram

The low-end solution is built only with Voltage andCurrent sensors, AFE (Analo Front End), ADC (AnalogDigital Converter) DSP (Digital Signal Processor) anda stepper display to show the value of the active energymeasured in kWh.

The medium-end solution allows the use of an LCDdisplay and is able to calculate also reactive andapparent power. Other possible features are anti-tampering and statistical information including datesand times. The implementation of such a solutionbasically requires, in addition to the component usedin the low-end solution, a MCU together with RTC,Reset IC and Memory (EEprom, Flash or RAM).

The high-end solution adds other optional featureslike automatic meter reading, pre-paid billing and multi-tariffing. For this reason a connectivity section isrequested (RF, GSM, PLM, IrDA) as well as a smartcard reader.

This section is implemented by the STPM01 devicethat is an IC integrating the analog front-end, the ADCand the DSP. It can be defined as a single chip energymeter IC compliant with IEC 62052, IEC62053-2xspecification for class 0.5AC watt meters withantitampering features. It is able to measure the active,reactive and apparent value of energy as well as theRMS values of the voltage and current. It supports allthe available sensing methods like the Rogowskicoil, current transformer and shunt resistor.

A complete ST portfolio for meters

The growing need for metering applications with highaccuracy over a wide dynamic range of current, lowpower consumption, high reliability and robustnessexplains the trend of moving from the traditionalmechanical solution to a solid state one.A complete solution for energy meters has beendeveloped, taking into account qualities such asaccuracy, cost, ease of manufacture, cost of thecomponents, easy calibration and of course reliability.This solution is discussed below, with a special focuson the most interesting products in ST’s portfolio.The energy meter described allows new functionalitieslike Automatic Meter Reading (AMR), tamper proofing,multi-tariff billing and a prepayment module with asmart card reader.

Looking at the general functional block diagram ofa power metering application 3 different solutionsare evident:

Low-End; Medium-End; High-End.

LCD

TRANSDUCER

EEPROM IrDA

PLM

SMART CARDREADER

MCUST72Fxxx

RTCM41ST87

POWERSUPPLY

ASICSTPM01

AFE-ADC-DSP SectionAFE-ADC-DSP Section

Power Supply Section For 1-Phase MetersPower Supply Section For 1-Phase Meters

1919

Smart Card Reader SectionSmart Card Reader Section

Metering reference design

Other SectionsOther SectionsSeveral other smaller functions should also be takeninto consideration. For instance the implementationof the “breaker” that blocks the supply of energy afteroverload, could be made with ST’s high voltagePower MOSFETs (SuperMESH "NK" family of 600V,1A or 800V, 3A devices) connected with anelectromechanical switch.

Smart card reader section using ST8004

Power supply reference design

VAC

VDD FB

D S

ST Turbo2 DiodeSTTHxxx06

IN OUTL78L05 +5V

+16V

GND

VIPer12AS

made with high voltage Power MOSFETs(SuperMESH “NK” series or MDmesh “MD” series)or the new ESBT, Emitter Switched Bipolar TransistorsSTC03DE170 and STC03DE150 can be used.

This device can be used as a single chip for theimplementation of a 1-phase energy meter or as themeasurement peripheral in a microcontroller based1-phase or 3-phase energy meter.The tamper detection feature is implemented bymonitoring the current of both the live and the neutralwires. The calibration is fast and simple (single point)consequently bringing lower production costs. Itsintegrated OTP memory prevents modification of thedata and calibration program. A complete referencedesign is available upon request.

With regards to the power supply section of 1-phasemeters, both a non-isolatedand an isolated solution areavailable. Considering the powerneeds of the application are verylow (usually less than 0.5W), theSMPS topologies used are thebuck (for the non-isolatedsolution) and the flyback (for theisolated solution). The idealsolution is a combination of theVIPer12, STTHxxx Rectifiers, and the TLxxx VoltageReference for the feedback loop, and a positivevoltage regulator to get the 5V needed to supply theother devices used inside the application.See application notes:AN1357 VIPower: low cost power supplies usingVIPer12A in non isolated applications.AN1642 VIPower: 5V buck smps with VIPer12A.A reference design is aviable upon request.For the 3-phase meters also the discrete solution

For high-end solutions, pre-paid functionality withsmart card readers could be implemented. In sucha case ST's wide range of microcontrollers (ST7xxxfamily) and the ST8004 and ST890 smart card readerinterface represent a possible solution for such asection of a power meter.Similar considerations can be made for the automaticmeter reading where one possible solution consistsin using ST7538, ST’s Power Line Modem.

www.st.com/stdics 2020

G. Leone – A Soper MckinnieStd ICs Product Promotion

Audio AmplifierAudio AmplifierThe audio block provides audio signal amplificationand volume control. The quality of the audio signalis a very important factor in the overall quality of thedevice, and most devices have pop reduction circuitrythat can totally eliminate pop and click.A variety of audio solutions exist, ranging from single1W audio amps which can drive either an earpieceor a speaker, to dedicated audio solutions which permitmicrophone input, speaker or earpiece output anddigital volume control via a bus interface (SPI or I2C).

8Ω speaker driver: TS4990, TS4994, TS4984, TS496216-32Ω speaker driver: TS419, TS421Dedicated, complete audio devices: TS4851, TS4855Two way audio devices: TS4973I2C bus interface: TS4975

Audio SwitchAudio SwitchMost mobile appliances today allow the user to switchfrom the built-in speaker and microphone to an externalsource such as an earpiece and clip-on microphonefor hands-free operation.Devices having very low ON-resistance as well as aquad switch in the same package are perfect for useas the switches which control the changeover frommelody ring to voice.Such solutions offer high-speed performance combinedwith the low power consumption afforded by CMOStechnology, and permit the reduction of space andcost. A wide range of devices having different electricalcharacteristics and very small packages including theinnovative QFN16 and Flip-Chip are available:

Single and Dual Bilateral 10Ω SPST switch:74V1G66, 74V2G66Low Voltage 9Ω single SPDT switch: STG3157Low Voltage 5Ω 500mA quad/dual SPDT switch:STG3680, STG3690Low Voltage 4Ω single SPDT switch: STG719Low Voltage 0.5Ω 500mA quad/dual SPDT switch:STG3684, STG3699, STG3699A, STG3685

DigitalDigital

Single and dual gate: 74V1Gxx / 74V2Gxx seriesHigh speed single gate: 74LX1Gxx series8/16 bit Level Translators: 74LVX3xxx series8/16 bit Bus Buffer: 74LVCxxxA, 74ALVCHxxx,

74VCXxxx, 74VCXHQ163245 series1/4 bit Level Translator: ST1G3234, ST4G3234,ST4G3235

Data CommunicationData CommunicationData communication needs are ever-increasing inwireless applications as more and more media functions(for example, digital cameras, or MP3 players) areintegrated to wireless devices, and require interfaceswith other external devices.A wide range of low-voltage interface products satisfiescommunication requirements and can provideenhanced ESD protection (-E versions).They aresuitable in a wide range of small packages includingthe new µTFBGA25.

Power and System ManagementPower and System ManagementThis block provides the various supply voltages requiredby the other blocks, while aiming to minimize bothpower dissipation and physical size, and maximizing

3V RS-232 Transceiver: ST32xx, ST32xxE seriesSUBLVDS Deserializer: STCCP278-bit Dual Supply Bidirectional Level Translator:ST2378EUSB 2 Transceiver: STUSB02E (coming soon)14 bit + I2C line Level Translator: ST16C32245

Sometimes, digital chips have specific needs as regardsa signal voltage level, or current. For signal qualityreasons, controlling the signal voltage and currentcannot be performed within large digital chips, andso an interface, called the digital block, is used toadapt the signal levels and control its flow.The digital block can include buffer, level translator andtransceiver functions. The devices below have electricalcharacteristics and packages with small dimensions likeµTFBGA42 which are suitable for this application:

2121

battery life. This block also manages the batterycharger function. A wide variety of Very Low DropVoltage Regulators with an inhibit function includingmultiple output devices is available:

Low Noise Voltage regulators: LK112/SVery-Low Drop Voltage regulators: LD2980,

LD2981, LD2982, LD2985Very-Low Drop, Low Noise BiCMOS Voltage

regulators: LD3985, LD3986Battery Charger IC: ST3S01BiCMOS voltage regulator for Bluetooth: STC2G15Triple output Voltage regulators: ST3M01

AccessoriesAccessories

Cigarette lighter battery charges: TSM108Wall plug battery charger: TSM101, TSM1011,

TSM102, TSM103W, TSM104W, TSM1051DC-DC Converter control circuit: MC34063A

Wireless Simplified Block Diagram

Standard ICs for Wireless Applications FlyerStandard ICs for Wireless Applications Flyer

application. Voltage references and regulators arealso available.

These blocks provide the DC Voltage for thebattery charger, adapting or converting the mainspower supply. The following devices are CC-CVvoltage and current controllers designed for this

ANALOGSWITCH

CA

ME

RA

CO

LO

R D

ISP

AY

KE

YB

OA

RD

DATACOMMUNICATION

DIGITALBASEBAND(dsp + mcu)

SYNTHESIZER POWERAMPLIFIER

ACCESSORIES

MMP

AUDIOAMPLIFIER

TRANSMITTERRF

INT

ER

FAC

E

RECEIVER

DIGITAL

POWER AND SYSTEM MANAGEMENT

Cigarette lighterbattery chargers

Wall plug batterycharger

DC-DCconverter

control circuit

ST's new Wireless Applications flyer describesST's Standard IC solutions for many mobilephone applicationblocks - such as theaudio block, datac o m m u n i c a t i o nblock and powerm a n a g e m e n tblocks. Order Code:FLWIRELESS/1204

www.st.com/digitalics 2222

By N. MythreyiMarketing Development Standard Logic ICs

LCD LEVEL TRANSLATOR IN TINY PACKAGES FOR SMART PHONE APPLICATIONS

74VCXHQ163245 logic diagram

Display Interface ICDisplay Interface IC

High speed: tPD = 7.7ns (max) at VCCA = 2.8V; VCCB = 1.8V; Bn to An;

Low power dissipation: ICCA = ICCB = 20µA (maximum);

Power down protection on inputs and outputs;Series resistor on A side;Limited EMI noise: trA ≅ tfB ≥ 4ns at CL = 10pF;Operating Voltage Range:VCCA(OPR) = 2.3V to 3.6V;VCCB(OPR) = 1.65V to 3.6V;Bus Hold provided on data inputs on both sides;ESD performance: HBM > 2000V (MIL STD 883

method 3015); MM > 200V;Lead-free µTFBGA package.

FeaturesFeatures

Innovative µTFBGA25 PackageInnovative µTFBGA25 Package

All inputs are equipped with protection circuits againststatic discharge, giving them 2kV ESD immunity againsttransient excess voltages. All floating bus terminalsduring high impedance state do not need any externalpull-up or pull-down resistors.74VCXHQ163245 is characterized for operation overthe commercial temperature range of -40°C to + 85°C.

The 74VCXHQ163245 addresses rapidly evolvingcustomer requirements for more circuit integrationand board miniaturization with the new lead-freeµTFBGA42 package (RoHS Compliant – Restrictionon Hazardous Substances). The device packagingis specially designed with minimum dimensions tosuit the space-constrained implementation like inmobile phones. It is packaged in an innovative lead-free µTFBGA42 package with a pitch of 500µm anddimensins of 4mm x 3.5mm. It is also available inregular TSSOP48 and TFBGA54 packages. It willbe shipped in standard tape and reel form with3000pcs per reel.

nG

nB1

nB2

nB3

nB4

nB5

nB6

nB7

nB8

nD/R

nA1

nA2

nA3

nA4

nA5

nA6

nA7

nA8

n = 1,2

74VCXHQ163245 is a new quiet Level Translator thatallows very low EMI, parallel communication betweenthe baseband processor and the colour display.

The latest addition to ST’s VCX product line is theLevel Translator IC, 74VCXHQ163245. It is a dualsupply low voltage CMOS 16-bit Bus Transceiverfabricated with sub-micron silicon gate andfive-layer metal wiring C2MOS technology.This IC is intended for two-way asynchronouscommunication between data buses and the directionof data transmission is determined by nDIR inputs.The enable inputs nG can be used to disable thedevice so that the buses are effectively isolated.It is designed for use as an interface between a 3.3Vbus and a 2.5V or 1.8V bus in a mixed 3.3V/1.8V,3.3V/2.5V or 2.5V/1.8V supply system.

74VCXHQ163245

2323

74VCXHQ163245 Functionality74VCXHQ163245 FunctionalityApplications include a wide variety of systems thatmust interface with new, lower voltage technologiesand legacy designs operating at a higher voltage level.This device provides a bi-directional interface forbuses operating at mixed voltage levels in the rangeof 1.4V to 3.6V, giving true signal translation with verylow EMI. This feature makes it suitable as a displayinterface to connect the baseband processor with thedisplay controller.

Application block diagram

Minimal overshoot even at high speeds

EMI is reduced by controlling the slew rates and alsoby using minimum-current output drivers. Thus74VCXHQ163245 achieves high speed operation whilemaintaining the low CMOS power dissipation andlimited rise and fall time (low EMI). This is particularlysuited for display interfaces in mobile applicationswhere the EMI at high speeds is a critical issue.

Such a device is required as the signals ofthe two end devices are at different voltages.74VCXHQ163245 supports designs with the A sideinputs at a higher voltage potential (3V/2.8V) thanthe B side (2.8V/1.4V). In this way it provides aquick and easy direct interface between the mixedvoltage levels present in the same system.For instance, in the above example it interfacesbetween the 1.4V baseband processor and the2.8V display controller.A need for this device can be found in all forms oftelecommunications, portable computers, mobilephones and PDAS. In fact, these applications usemixed voltage levels extensively to maximize powersavings by using 1.4V/1.8V wherever possible and2.5V/3.3V only where necessary.The series resistor on the higher voltage side,dampens the reflections due to impedancemismatches. This ensures reliability of the signaleven when long signal traces are used. Typical ICCA

and ICCB are very low (around 2µA at 25°C).This is a very important consideration for mobilephone applications where battery life should beextended as much as possible.

Ordering CodesOrdering Codes

Package

TSSOP48

TFBGA54

µTFBGA42

Type (T&R) Dimensions

74VCXHQ163245TTR

74VCXHQ163245LBR

74VCXHQ163245TBR

6mm x 12.5mm

8mm x 5.5mm

4mm x 3.5mm

1.8VInterface

2.8VInterface

VCCB VCCA

BASEBAND

PROCESSOR

1.4V / 1.8V

COLORDISPLAY

CONTROLLER

2.8V / 3.3V74VCXHQ163245

CL = 40 pF, No overshoot in 74VCXHQ163245

f = 30MHz; CL = 30pf; all 16-ch switching

Voltage[Volts]: 1V

per division

Time [ns]:5.00nsper division

0V

3V Output of older74VCX series

with overshoots

Output of74VCXHQ163245with no overshoots

Time [ns]

Inputsignal 1.48V

Outputsignal 2.8V

www.st.com/stdlinear 2424

By C. PrugneStandard Linears Technical Marketing

ULTRA LOW CONSUMPTION HIGH SPEED OP-AMP

Typical application schematic

Main Features of TSH310Main Features of TSH310The TSH310 uses a current feedback architecturecombined with a very high-speed complementarytechnology to achieve a large bandwidth of 130MHzand a high slew rate of 115V/µs (85V/µs minimumguaranteed by testing) versus a ultra-low quiescentcurrent of 400µA (470µA maximum guaranteedby testing). A low input voltage noise of 7.5nV/√Hz combined with its output stage optimized for drivinghigh speed ADC input stages with a linearity of87dBc versus 1MHz/2Vp-p on 1kΩ load and 55dBcversus 10MHz/2Vp-p on 1kΩ.

SOT23-5L plastic package with a standard pin-outin tape and reel (TSH310ILT);8-pins SO-8 plastic package with a standardpin-out in tube and tape and reel (TSH310ID and

TSH310IDT).

PackagesPackages

I CC

[A

]

Temperature [¡C]

400

200

0

-200

-400

-600

-800

-1000-40 -20 0 20 40 60 80 100 120

Icc (+)

Icc (-)

Gain=+1VCC=5VNo Loadin(+/-) to Gnd

1M 10M 100M

Nor

mal

ized

Gai

n [d

B]

-21

-18

-18

-12

-9

-6

-3

0

3

6Gain=1

Gain=2

Gain=4

Gain=10

Frequency [Hz]

Battery

TS

H31

0

ADC

AnalogSignalInput

+-

Small signal frequency response

Consumption versus temperature

The TSH310 combines high performance at areasonable price. The main applications for the TSH310are in portable instrumentation and equipment, suchas portable oscilloscopes and analyzers, medicalinstrumentation, portable sensors and cameras.

ApplicationsApplications

In today’s world, reducing power consumption hasbecome a primary goal for everybody. This is whyST has included the very low consumption TSH310in its new TSH3x series of high-speed operationalamplifiers.Designed with an advanced BiCMOS process, itcombines the benefits of high performance with theprice advantages of high volume production.

www.st.com/stdlinear 2525

By C. PrugneTechnical Marketing

1.1GHz HIGH SPEED OP-AMP

Main Features of the TSH330Main Features of the TSH330By combining a current feedback architecture witha very high-speed complementary technology, theTSH330 can provide a large bandwidth of 1.1GHzon only 16mA of quiescent current. This amplifierdemonstrates a 0.1dB gain flatness up to 160-MHzat gain=2, and a high slew rate of 1800V/µs isprovided, with only 1.3nV/√HZ of input-voltage noise.With an output stage optimized for driving video orinstrumentation lines, the TSH330 demonstratesvery good linearity: -78dBc versus 10MHz/2Vp-pon 100Ω load and -73dBc versus 20MHz/2Vp-p on100Ω load.

The TSH330 is available in an 8-pin SO-8 plasticpackage with a standard pin-out in tube and tape andreel (TSH330ID and TSH330IDT).

PackagesPackages

The TSH330 is aimed at applications such asinstrumentation (oscilloscopes and analyzers), videodrivers, high quality imaging and medical imaging.

Main ApplicationsMain Applications

HD2

HD3

Gain = +2VCC = 5VF = 10MHzLoad = 100Ω

-100-95-90-85-80-75-70-65-60-55-50-45-40-35-30-25-20

0 1 2 3 4

Output Amplitude (Vp-p)

HD

2 an

d H

D3

(dB

c)

Very wide bandwidth and excellent linearity areincreasingly necessary for high-end equipment. TheTSH330, with a 1.1 GHz bandwidth, is part off ST’snew TSH3x series of high-speed operationalamplifiers.The TSH330, designed with an advanced BiCMOSprocess, marries the benefits of high performancewith the price advantages of high volume production.

Gai

n (

dB)

1M 10M 100M 1G-10-8-6-4-202468

1012141618202224

Frequency (Hz)

20dB Gain=+10

6dB Gain=+2VCC = 5VLoad = 100Ω

Small signal freqency response

Typical application schematics

Distortion versus amplitude

High Quality Monitor

ADC

AnalogSignalInput

+

-TSH330

Riso

VideoSignal

+

-TSH330

Video Line

75Ωcable

75Ω

75Ω

www.st.com/stdlinear 2626

By L. Berger & M. BendridiStandard Linear Technical Marketing

1.2W FULL DIFFERENTIAL ZERO-POP HIGH-QUALITY AUDIO AMPLIFIER

Typical application schematic

Main FeaturesMain FeaturesDifferential inputs;Zero pop and click;100dB PSRR @ 217Hz with grounded inputs;Operating from Vcc = 2.5V to 5.5V;1.2W Rail to Rail output power @ Vcc = 5VTHD = 1%, F = 1kHz, with 8Ω load;70dB CMRR @ 217Hz;Ultra low consumption in standby mode (10nA);Selectable standby mode (active low or active high);Ultra fast startup time: 15ms typ;Available in Flip-Chip, DFN10 and MiniSO8. Designed for high quality audio applications such as

PDAs, laptops and mobile phones, the TS4994 is aDifferential Audio Power Amplifier able to deliver 1.2Wof continuous RMS output to an 8Ω load. The TS4994also features ST’s patented Pop and Click suppressioncircuits and, thanks to its differential inputs, it exhibitsoutstanding noise immunity. The device’s negligiblecurrent consumption in standby mode makes it theperfect addition to power conscious portableapplications. And, while it may be light on powerconsumption, the TS4994 is built tough enough towithstand short circuits and comes complete with itsown internal thermal shutdown protection.

High Performance Portable AudioHigh Performance Portable Audio

ApplicationsApplicationsMobile phones;Laptop/Notebook PCs;PDAs;Portable audio devices.

PSRR vs. frequency

Tailor-made for mobile communications, the TS4994audio amplifier has fully differential inputs, zero popand outstanding noise immunity.

-60

-65

-70

-75

-80

-85

-90

-95

-100

-105

-11010 100 1000 10000 100 000

Frequency [Hz]

PS

RR

[dB

]

Vripple=200mVppCin=1 FCb=1 FGain=1

VCC=5V

VCC=2.6V

VCC=3.3V

Stby Mode

Stby

Bypass

GND

VIn

VD

VDD

-

Bias

++

+-

-VD

VIn

RFeed VDD

CS

CB

RFeed* Optional

CN*

Diff. Input

RN

-

CN*

Diff. Input

RN

+

TS4994

www.st.com/vregs 2727

By G. Zuppardo / V. CarusoStandard ICs Product & Technical Marketing

1.5A, 1.5MHz, ADJUSTABLE, STEP-DOWN, SWITCHING REGULATOR

Pin configuration (top view)

Main FeaturesMain Features

ST1S03 Main CharacteristicsST1S03 Main Characteristics

VFB

GND

SW

N.C.

Vin _A

Vin _SW

Future DevelopmentsFuture Developments

Typical application circuit

Firstborn of a new family of DC-DC converters, theST1S03 posseses all the requirements coming fromseveral market segments. It is expected to becomea standard product able to replace the linear solution,when the power dissipation increases to a pointconsidered unacceptable, for example in portabledevices or in applications requiring very low supplyvoltages. It has been designed to be used primarilyin hard disk drives and, for this reason, the new, BCD6technology has been used in order to reach very highperformance in terms of transient response andefficiency. Besides, the new trimming block allows easyadjustment of the reference voltage and the switchingfrequency using a pre-programmed sequence of digitalbits. The high value of the applicable input voltage(16V), allows its use in consumer applications suchas set-top box, TV sets and DVD reader/recorder.The ST1S03 is available in the increasingly populartiny DFN6 3x3mm package.

Step-down, current mode, PWM DC-DC converter;Input voltage from 3 to 16V;High switching frequency: 1.5MHz;Output current capability up to 1.5A;Internal soft start to avoid the in-rush current duringthe power-on;Typical efficiency >70%;Non switching quiescent current: max 2.5mA ;Switch VDS: max 350mV @ ISW = 750mA;Package: DFN6 3x3mm EcoPack compliant.

MAX Iout1.5V

PWM fs FB1.5MHz 0.8V

MAX Vin16V

This new switching regulator will soon be followed byothers versions with increased flexibility, for examplethe ST1S06PM will have electronic shutdown and/orinternal synchronous rectification.

Vin

4.7 F

50k

25k

22 F

3.3 H

Vout=1.2VSW

VFBGND

ST1S03

N.C.Vin

For more information see application noteANxx: ST1S03 - Buck converters for hard disk drivespower supplies.

www.st.com/vregs 2828

By R. PelusoVoltage Regulators Applications

ANALOG INTERFACE FOR ASYNCHRONOUS 3V AND 5V SMART CARDS

ST8024 block diagram

ApplicationsApplicationsSmart card readers for set-top boxes;IC card readers for banking;Identification;Electronic payment.

Power SupplyPower SupplyThe supply voltage (VDD) should be in the range of 2.7to 6.5V. Integrated in the ST8024 is a DC/DC converterpowered by VDDP. This supply voltage provides theVCC for 5 or 3V cards.The DC/DC converter works as a voltage doubler or

After power-on reset, the microcontroller checks thepresence of the card. If present, the microcontrollermay start a card session. When the activation sequenceis complete, the ST8024 will be in the active state.Data is exchanged between the card and themicrocontroller via the I/O lines. As a session is finishedthe circuit carries out an automatic deactivationsequence and ends in the inactive state. The ST8024is designed to monitor potentially dangerous faultconditions: over temperature, short circuit or a cardextraction, then as soon as the fault is detected, anemergency deactivation is automatically performed.

Functional DescriptionFunctional Description

Ordering CodesOrdering Codes

Temp. range

0 to 70°C0 to 70°C0 to 70°C

Designed to be compatible with the NDS conditionalaccess systems;3 or 5V supply for the IC;Step-up converter for Vcc generation;3 specifically protected half duplex bi-directionalbuffered I/O lines;Automatic activation and deactivation sequences;Thermal and short-circuit protection on all card

contacts;26MHz integrated crystal oscillator;Clock generation for the card up to 20MHz with

synchronous frequency changes;Supply supervisor for spike-killing during power-onand off and power-on reset;

Threshold fixed internally or externally by a resistorbridge;Enhanced ESD protection on card side;Built-in debounce on card presence contact;ISO7816-3 compatible;SO-28 and TSSOP28 packages.

FeaturesFeatures

follower according to the respective values of VCC andVDDP. A voltage supervisor block maintains the IC inthe inactive mode during powering-up or powering-down of VDD.

P / N Package

ST8024CDST8024CDRST8024CTR

The ST8024 is a complete, cost effective anaIoginterface for asynchronous 3V and 5V smart cards.It is used as a level adapter between the card and themicrocontroller. Since very few external componentsare required to perform all supply, protection and controlfunctions, the system cost is greatly reduced while thereliability is improved.

SO-28SO-28

TSSOP28

Supply

ClockCircuitry

Step-upConverter

VDD VDDP

Poradj

supply tosmart card

Sm

art C

ard

ST8024ExternalXtal

MC

U clkdiv I5V/3Vrstin

cmdvcc

offI/O c

aux2 c

pres

rst clk

Sequencer

I/OTransceiver

ThermalProtection

Oscillator

aux1 cI/O

aux1aux2

www.st.com/protection 2929

By S. Mosquera DuranASD & Discretes Product Marketing

ESD PROTECTION: LOW CAPACITANCE ESD ARRAY IN SOT-666

Targeted ApplicationsTargeted Applications

Effect on protection capacitance value on USB 2.0full speed pattern signal recommendation.

Low distortion effect at high speed rates;IEC61000-4-2 level 4 ESD compliance;SOT-666 package (5 pin version available);Lead-free component.

Main Product FeaturesMain Product FeaturesThe ESDALC6V1P6 is a 4-line voltage suppressorthat provides ESD protection according to IEC61000-4-2, level 4 (8kV contact discharge / 15kVair discharge). Internal design has been optimizedto minimize capacitance values down to 7 pF at 5Volts and to guarantee Vbr min at 6.1 Volts. Inaddition the SOT-666 saves up to 40% PCB spacein comparaison with the standard SOT323-6L.

ESD Protection and Data IntegrityESD Protection and Data IntegrityWith high speed data rate protocols, the capacitanceof the protection device can start filtering the signaldata, resulting in distorted waveforms that can rendera system defective. This reveals how important thecapacitance value of the ESD suppressor is for highspeed data lines. The figure on the right shows thedifference for the low/high state transition between

the ESDALC6V1P6 (9pF @ 1V) and a standard ESDprotection diode with capacitance specified at 70pFat 1V.

ForbiddenArea

+5V

0V

5.0-5V

10.05.5 6.0 6.5 7.0 7.5 8.0 9.08.5 9.5

Time [ns]

Standard ESD Diode

ESDALC6V1P6

For data rate protocols in the 100Mbit/s range, theESDALC6V1P6 helps maintain signal integrity whileensuring high level ESD protection functionality inan extremely small package.

As a major reference in the field of over-voltageprotection components, ST has a long history ofproducing outstanding monolithic TRANSIL arraysdesigned to provide low cost and reliable protectionagainst Electro-Static Discharges.With the evolution of electronic devices towards everincreasing data exchange rates and faster signalspeeds, low capacitance ESD protection withoutdistortion effects are prerequisite in developing state-of-the-art computer, telecom or consumer devices.The new ESDALC6V1P6 introduced by ST has beendesigned to meet such protection requirements fordevices with high speed communication rates.

Video ports for monitors and flat-panels;SIM and UIM port (GSM standard 11-18);Cellular phone RS232 port and digital lines;10/100 Ethernet ports;USB 2.0 data lines;Notebooks, PDAs I/O ports;Other high speed data lines (DVI).

Main Advantages of the ESDALC6V1P6Main Advantages of the ESDALC6V1P6

www.st.com/rectifiers 3030

By B. Peron & S. Mosquera DuranASD & Discretes Applications & Marketing

NEW BAT20J SCHOTTKY DIODE FOR LED DRIVERS IN MOBILE PHONES

Boost regulator topology for LED drivers

Improved DC/DC EfficiencyImproved DC/DC Efficiency

The new BAT20J brings both optimized forward voltageand leakage current characteristics which allow theminimization of the reverse losses at high temperatures,while conduction losses are obviously restricted atthe lowest possible value. The following graphs showhow the boost diode reverse losses can damagethe DC/DC global efficiency by up to 13% at hightemperatures. In addition, the low leakage currentcharacteristic brings the added advantage of limitingthermal instability of the system by reducing the riskof thermal runaway.

0

2

4

6

8

10

12

14

%

25 100

BAT20J

25 100

BYV10-20

…C

2.75

0.02

2.341.30

2.63

0.21

2.46

13.01

Efficiency drop due to the conduction losses (Pcond)and reverse losses (Prev) versus the junction temperature

Pcond

Prev

BAT20J FeaturesBAT20J FeaturesThe BAT20J has been especially designed for thebacklighting of LCDs in mobile phones.The main features of the product are:

23Volts Vrm Schottky diode;Low leakage current for thermal stability;Low conduction losses for yield optimization;Low junction capacitance diode;Small lead-free plastic packages.

By using the latest plastic micro-package availableon the market, the BAT20J, available in SOD323 andSOT-666 packages, takes the next step towards theintegration of discrete components.

Micro-Package Reduces PCB AreaMicro-Package Reduces PCB Area

Portable devices continue to become increasinglysophisticated with new features and capabilities suchas color LCD displays, MP3 players and games beingincorporated. However, all these new features areaccepted by mobile phone consumers only if thereis no compromise in the weight and the battery lifeof the phone. To meet these conflicting needs, STis introducing a new power schottky, the BAT20J.This new diode has been especially developed toget the best DC/DC converter performance for LEDdrivers in portable equipment.

This new shottky diode is based on existing 20Voltbarrier technology, but the Vrrm characteristic hasbeen upgraded to 23Volts to take into considerationovervoltage spikes induced during the PowerMOSFET’s switching phases.

VIN(MIN) =2.7V L VOUT

SW

VIN

BAT20J

FB

SHDN

GND

DriverCircuit

RSENSE

d

sShutdown

Feedback

4 x LEDs

www.st.com/rectifiers 3131

By R RenardASD & Discretes Product Marketing

THE COOLEST 100HZ & HDTV DAMPERS

The graph below clearly shows the cost andperformance benefits brought by ST’s new Damperdiodes with respect to existing parts.

Less total power losses for the same cost when using DTV1500SDFP instead of DTV1500LFP;

Equivalent performance at a lower cost when usingDTV1500SDFP instead of DTV1500MFP.

Device ComparisonDevice Comparison

Key Parameters of Damper DiodesKey Parameters of Damper DiodesThe power losses are broken down as follows:

Pon: Switch-on power losses depending on peakforward voltage (VFP);Pcond: Conduction power losses depending on forward voltage (VF);Prev: Reverse power losses depending on leakagecurrent (IR);Poff: Switch-off power losses depending on reverserecovery time (trr).

Total power losses comparison (F=32kHz, Ipeak=6A, ∂=0.45)

REF

-5%

-18%

2.75

2.5

2.25

2

1.75DTV1500

LFPDTV1500

MFPDTV1500

SDFPDTV1500

HDFP

Plo

ss T

otal

[W]

Switch Over

New Dampers

Key parameters of two different DAMPER diodes

DTV1500SDFPFor StandardDefinition TV

VRRMIF(av)VF (Typ) (IF(av),125°C)trr (Typ) (1A, -50A / µs 30V, 25°C)VFP (Typ) (6A, 80A / µs 100°C)

PACKAGE

DTV1500HDFPFor High

Definition TV1500V

6A1.1V

150ns26

TO-220FPAC(Fullpack)

1500V6A

1.0V150ns

21TO-220FPAC

(Fullpack)

The Best Trade-offThe Best Trade-offFor high switching frequencies, Pon is high and VFP

becomes a critical parameter. VFP increases with (dI/dt)ON.In this application, this parameter ((dI/dt)on) is mainlyfixed by the layout and is generally lower than 100A/µs.

In the mainstream CRT TV market where frequenciesare moving from 50/60Hz to 100/120Hz, the

conventional 100Hz TV has a maximumdeflection frequency of 32kHz (for 50Hz mains).

The recommended device for this frequency isthe DTV1500SDFP.At HDTV frequencies such as 56kHz, VFP becomeseven more critical and therefore the recommendeddevice is the DTV1500HDFP.

The new family of DAMPER diodes has very gooddynamical (low VFP) and static parameters (low VF)to meet CRT TV technical requirements: a low VFP

reduces the turn-on switching losses and a low VF

minimizes the forward power losses.As typical deflection frequencies in a 100Hz or HDTVCRT TV are far below the critical deflection frequency(Fc), a trr of 150ns is fully compatible with high endCRT TV designs.

One of the main targets for high end CRT TVsdesigners is to minimize the total power losses.At this frequency, main power losses beingconducted and switch-on power losses, ST hasintroduced a new family of DAMPER diodes forhorizontal deflection circuits in high end CRT TVapplications such as 100Hz TVs and HDTVs.Thanks to an optimized trade-off these devices allowhigh performance deflection circuits at a low cost.

www.st.com/rectifiers 3232

By JR HecquefeuilleASD & Discretes Product Marketing

COMPLETE RANGE OF 200V BIPOLAR RECTIFIERS - FROM 2X8A TO 2X100A

Leakage Current & Reliability GainLeakage Current & Reliability GainThe 200V family has been designed to optimize thecost performance ratio, by dividing the leakage currentby 10 compared to the existing range, while providingcustomers with affordable devices. The reduction of theleakage current with the 200V series induces lowerreverse losses, especially at higher junction temperatures,and thus more margin with respect to the thermalrunwaway risk. This is also reinforced, for all new productsexcept ISOTOP, which has a maximum junctiontemperature of 175°C. This allows a new generation tooverdrive higher currents, as described in the followingtable. Furthermore, the softness characteristic used forthis new range is equivalent to the one in the previous200V series. This means that in working conditions thenew “STTH” series will have the same EMC performanceas the existing range.

The 200V "STTH" family completes ST’s wide rangeof ultrafast diodes, and thanks to the availability ofmultiple current ratings they perfectly match allkinds of application requirements.

Better or same VF / trr performance than theprevious range;Lower IR resulting in reducing thermal runaway

risk;Optimized cost / performance ratio;Tj set at 175°C (excluding ISOTOP).

Advantages Of The New STTH DiodesAdvantages Of The New STTH Diodes

Comparative performance of existing range versus new STTHultrafast 200V devices for 2x8A devices

2002 x 10A

0.946026175

2002 x 8A0.9960030150

Price reference Same Price

STTH Product RangeSTTH Product Range

STTH802CxxxSTTH1002CxxxSTTH1302CxxxSTTH1602CxxxSTTH2002CxxxSTTH3002CxxxSTTH6002CWSTTH6102TV1STTH12002TV1STTH20002TV1

2x42x5

2x6.52x8

2x102x152x302x302x60

2x100

VF max150°C

[V]

IR max125°C[µA]

Widerangefrom

DPAK,D2PAK,TO-220

toTO-247TO-247

ISOTOP

40406060

100125300300500800

trrmax25°C

20252526272227304363

Product IF[A]

0.900.890.950.890.890.840.840.810.820.81

Package

STTH1602CTNew Ultrafast

VRRM (V)IFav @ Tc=120°CVF max @ 8A & 125°C (V)IR max @ 125°C (µA)trr max @ 25°C (ns)Tj max (°C)

STPR1620CTExisting Range

200V diodes are used in many kinds of applications,ranging from adaptors to server SMPS, and fromindustrial welding to automotive. Increasing the powerdensity is the common objective in all theseapplications. To sustain this trend, 200V diodes haveto withstand two major factors:

The ambient temperature within the equipment increases involving an increase of the leakage current of the diode;

A significant growth of the forward current flowingthrough the diode.

While designers constantly work at optimizing thecost/performance ratio and the reliability of theirapplications, ST is introducing a new 200V ultrafastseries that brings temperature behaviour improvementsat a competitive price.

www.st.com/rectifiers 3333

By Jr HecquefeuilleASD & Discretes Product Marketing

UP TO 50% MORE CURRENT ALLOWED IN TO-220 AND TO-247 PACKAGES

More Current Allowed In The PackagesMore Current Allowed In The PackagesST’s new 100V and 150V Schottky diodes offer upto 50% more current in the same package. They canreplace devices in larger packages or reduce thenumber of paralleled devices to achieve the desiredcurrent rating. For these reasons, they contribute toincreasing the power density of the applications.

ST uses one more wire to internally connect the dieto the pins of the TO-220 or TO-247 packages. Thisreduces the VF of the diodes by 20mV at 60Amps,and leads to fewer conduction losses in the application.Furthermore, the ST trade-off of the existing 100Vand 150V Schottky barriers provides a tiny leakagecurrent that allows the devices to operate up to ajunction temperature of 175°C.

ST has introduced new TO-220 and TO-247 highcurrent rated Schottky diodes to help designerschallenge the power density growth of the futuregenerations of SMPS.

Diode current specification versus adaptor output power

The main advantages of the new TO-220 and TO-247devices using ST’s existing 100V and 150V Schottkybarriers are:

Power density integration with higher current ratings;Lower VF without degrading the leakage current;175°C max junction temperature.

These new devices are especially designed to followthe trend of higher power density in notebook adaptors,servers and telecom base stations SMPS.

50 70 90 110 130 150

10

20

30

40

60

Adapter Output Power [W]

Dio

de C

urre

nt [A

]

2006

2004

2003

2001

1999

Current ratings comparison by package for new 100V and 150VSchottky diodes

TO-220 TO-2470

10

20

30

40

50

60

70

80

Competitors

New ST

Less Losses In The DiodesLess Losses In The Diodes

Main AdvantagesMain Advantages

Product RangeProduct Range

100100

150

150150150

STPS60H100CTSTPS61H100CW

STPS40150Cx

STPS60150STPS61150STPS80150

VF typ @125°C & Io

[µA]

TO-220TO-247TO-220TO-247TO-220TO-247TO-247

0.670.63

0.69

0.720.630.68

Tjmax[°C]175175

175

175175175

Voltage[V]P / N Current

[A]

2 x 302 x 30

2 x 20

2 x 302 x 302 x 40

Package

During the last 3 years, the output power of notebookadaptors has doubled to typically 100W. This trendis bound to continue, and the new generations willbe up to around 180W by 2006. The impact on designis to increase the current rating of the secondaryrectification diode, as shown below. Many otherapplications such as servers and base station SMPSare following the same trend of more power andcurrent in the rectification diodes.

www.st.com/asd 3434

By T. CastagnetASD & Discretes Strategic Marketing

AC POWER MANAGEMENT IN HOME APPLIANCE SYSTEMS

Split air-conditioner power diagram

Complete Analog Functions In OneComplete Analog Functions In OneThe STCC05 has been designed specifically for thedigital control of air-conditioners or refrigerators.It integrates:

Nine analog and power functions, which arerequired around the MCU to sense and drive

the AC power loads;Zero voltage filtered synchronization;Three 50 and one 150mA relay coil drivers with

their free-wheeling diode;The MCU 5V supply with its reset circuit;The level shifter of the indoor fan speed sensor-or the door switch- and the enhanced buzzer driver.

Using a 20V power technology, this device is able torun with large input voltage variations from 7 to 18V.Housed in the lead-free DIP-20 package, it has a90°C/W thermal resistance able to cool its 50mAregulator and its coil drivers of up to 250mA on anextended temperature range from -20 to 85°C.

7 to 18V input supply voltage;5V +/- 5% full tolerance 50mA Voltage Regulator;MCU reset circuit with noise filter;Internally filtered zero voltage synchronization;One 150mA compressor relay coil driver;Three 50mA power relay coil drivers;30mA buzzer driver with smooth sound control;Speed sensor level shifter;ECOPACK lead-free DIP-20 package; – 20 to 85°C ambient temperature.

FeaturesFeatures

The Key Companion In The Electronic PlatformThe Key Companion In The Electronic Platform

Higher Reliability With Lower MaintenanceHigher Reliability With Lower Maintenance

Most new air-conditioners and refrigerators areelectronically controlled using an 8-bit microcontroller.Their electronics is designed with a system platformapproach in order to reduce their development timeand maximize the number of models produced. Forthese appliances, ST is introducing the STCC05-BD4,a new power management device that includes thefunctions required for AC power control and safety.

Designed to fulfil the electronic partitioning of air-conditioners, the STCC05 is a cost effective solutionthat allows the system performance to be improved,especially with respect to the MCU supply, thebuzzer operation and the thermal operation of thepower drivers. For instance, the buzzer driverembeds a discharge resistor and a serial resistorto eliminate annoying sound harmonics; an enablingpin allows the buzzer power-up and down to besmoothed improving the sound generated by theMCU synthesizer.The STCC05 is an easy-to-design circuit reducingthe debug phase once designed in the platform kit.

The power technology and the internal circuitry ofSTCC05 have been chosen to achieve a robust andreliable device and to enable the system to successfullywithstand the standardized ESD discharges, EOSsurges and EFT fast transients: the reset and the zero

~ AC Line

Compressor Fan Defrost 4-WayValve

Option

OUTDOOR UNIT

M

ROOM UNIT

Option

12V DC

Fan Heater 2x Louver

~ AC Line

voltage synchronization immunity are reinforced withsome filters; the power supply is self-protected

by an over-currentl im i ta t ion andthermal shutdown.

The major benefitsof these features areto reduce the fieldmaintenance and todrastically increasethe life-time of theappliance.

Finally, the STCC05allows a 6 Sigmaquality standardto be reachedthanks to a tightcontrol critical ofeach applicativeparameter.

3535

STCC05 block diagram

STCC05 A/C application diagram

BenefitsBenefits

High functional reliability reduces the appliance field maintenance;

High ESD robustness and EFT immunity compliantwith IEC61000-4 standards;6 Sigma parametric quality;Higher module compactness thanks to a full

system/platform solution;Easy to design with an optimum partitioning;Faster module assembly time than with discrete

boards.

Dedicated to AC Power ManagementDedicated to AC Power ManagementThe STCC05 is the second circuit of the homeappliance oriented STCC range; it embeds all theAC power management and safety functionsrequired for a refrigerator and air-conditioner controlplatform. Thanks to an exhaustive functionaldefinition including electromagnetic compatibility,it maximizes the integration of the discrete devices,improving the performance and the reliability ofthe system while reducing its overall cost anddevelopment time.

VPS

RL420A RelayDriver

IN4

RelayDriver

BuzzerDriver

ENBZBZ2

INBZ

VPS VDD

Reset RST\

ZVS

COM

Zero Volts Sync.

SYN

Level Shifter

INS OUTS

RL3

RL2

RL1

VPS

VPS

VPS

VPS

IN3

IN2

IN1

BZ1

VPS

5V Regulator

30 s Filter

EMI Filter

RelayDriver

RelayDriver

Compressor Relay

Power Relays

Buzzer

VPS

CUP

VPS

VPS

VDD

SpeedSensor

SMPS

AC LineJPVPS

VDD CDD

P03

P02

P01

P06

PWM

VDD

P07

/RST

NMI

IN4

ENBZ

INBZ

VDD

RST\

ZVS

OUTS

IN3

IN2

IN1

P04RL4

BZ2

VPS

COM

SYN

INS

RL3

RL2

RL1

BZ1

STCC05 MCU

STCC05

3mm

3mm

Today’s handheld devices put more functions intosmall packages than ever before, and when usersare doing that, they want the smallest packagesavailable. ST’s QFN16 measures only 3mm by 3mm,and is as small as any RTC in the industry.

www.st.com/rtc 3636

By D. SamsNVRAM Division

M41T6X ULTRA LOW CURRENT FAMILY OF SERIAL RTCs

Low Voltage OperationLow Voltage Operation

Oscillator Fail DetectOscillator Fail Detect

Ultra Low Standby CurrentUltra Low Standby Current

While 5V applications are still around, there isshrinking demand for it, but there is growing demandfor 3 and 3.3V solutions. Furthermore, the nextsweetspot is expected to be 1.8V. Operating from1.3V to 3.6V, the M41T6x family meets today’sdemands, and will meet tomorrow’s, too. Plus, theywill keep time all the way down to 1.0V. These areoutstanding numbers that should please any user.In capacitor backed applications, because they keeptime all the way down to 1.0V, the M41T6x seriesRTCs are able to use more of the charge stored inthe backup capacitor thereby extending the backuplife even further. This means less capacitance isrequired for a given backup time. For the double layercapacitors (“supercaps”) often used in theseapplications, reducing the capacitance lowers the cost.Lower timekeeping voltage also means that inapplications where the system voltage often sags-such as in battery operated and handheld devices-the timekeeping function is made more robustbecause the voltage must drop to a lower levelbefore the clock begins to lose time. At the end ofthe day when a handheld unit’s rechargeablebatteries have begun to sag, the clock will still berunning, and the user won’t need to reprogram it.

Many applications require the date and time, andReal-Time Clocks provide those functions. Forexample, in data storage applications, all files havedate and time attributes that are updated every timea file is created or modified, and the RTC data mustbe accessed every time that occurs.RTCs can be implemented in software and in ASIClogic. But maintaining the clock can present addedpower management challenges. While low-powermicrocontrollers and ASICs are available, they stilldraw much more current than a dedicated RTC,and often cannot operate over a wide voltage range.A better solution is ST’s new M41T6x family of SerialRTCs. These devices lead the way with low current andlow voltage operation and come in a tiny QFN package.

Small QFN16 PackageSmall QFN16 Package

Brown-out occurs when VCC drops too low for reliableoperation of the circuit, but not low enough to ensure

The M41T6x family boasts typical standby currentsof only 350 nanoamps at 3.0V which makes ST aleader in the marketplace.These RTCs do not include battery switchover circuits,but are targeted at applications where they are notneeded. In many of today’s applications, the entiresystem is often backed up, so individual componentssuch as the RTC don’t need backup circuitry on chip.Capacitor backup is another example whereswitchover is not required. The capacitor’s chargingdiode inherently provides the switchover mechanism.Handheld applications are a case where the RTCmay run off the system battery and also be backedup by a capacitor. And since there is no backupcircuitry, the RTC can be made smaller and lesscostly, and draw even lower power. Since currentdraw is very important in handheld and batteryoperated systems, the standby current of the RTCis the critical parameter. It determines the rate ofbattery consumption - how long the battery will last- as well as the backup life when using capacitorbackup. Drawing only 350nA, users can get fromminutes to months of backup time with a capacitor.And they won’t encounter the regulatory issues oftenassociated with batteries.

350 nanoamps standby (typ) at 3.0V;1.3V to 3.6V operation- timekeeping down to 1.0V;400 KHz I2C Interface;BCD registers for year, month, day, date, hours,minutes, seconds and 10ths and 100ths of seconds;2 century bits (Y2.1K compliant);Automatic leap year adjustment;Lead-free QFN16 package;-40º to +85ºC operating range;Programmable alarm and interrupt;Programmable squarewave output;Dedicated 32KHz output.

3737

Oscillator fail detect circuit

32KHz Output32KHz OutputMany applications, especially battery operated ones,use 32KHz as a low power operating frequency.These systems will dynamically switch frequenciesto a higher speed on demand, then switch back tothe slower speed to conserve power. In some cases,the higher speed is generated using phase-lockedloop clock synthesis with a 32KHz reference. TheM41T62, M41T63 and M41T64 all include 32KHzoutputs for this purpose. At power up, these outputsdefault to 32KHz out and enabled, but when notrequired, they can be turned off via configuration bitsin the clock registers. Having the 32KHz output savesusers the cost of an extra crystal, and can help reducesystem power consumption.

M41T62M41T62The M41T62 includes a Watchdog and Alarm alongwith a Programmable Squarewave which defaults to32KHz at power up. The Calibration feature allows

Family FeaturesFamily Features

* Runs off 50/60Hz - No crystal required

Square-waveOut

ProductionLimited SamplingLimited Sampling

ProductionProductionSampling

32KHzOut

OscillatorFail

Detected

AlarmIRQP / N

Watch-dogOut

M41T65M41T64M41T63M41T62M41T60M41T50*

Availability

M41T62 block diagram

a proper power down/power up sequence. Someregisters may get corrupted thereby losing track ofthe real time.To detect this brown-out condition, the M41T6x partsinclude an Oscillator Fail Detect circuit. If, due to lowVCC, the oscillator begins to run intermittently, or stopsaltogether, a special filter detects this and sets a bitindicating such. The system software now has a bit itcan check to indicate whether the time is still good orhas possibly been corrupted. This is a key feature formany users, and a major selling point for these devices.

users to get accuracies down to +/-5 seconds permonth, and the Oscillator Fail Detect circuit indicateswhen the time may be corrupted (due to brownout).10ths and 100ths of seconds are available forextra fine resolution. Drawing only 350nanoamps at3.0V, the M41T62 is hard to beat.

4 MISSING PULSES

OSCILLATORFAIL STATUS BIT

OF

OFIE OPTIONALOSCILLATORFAIL INTERRUPT

OSCILLATOR32KHz MISSING PULSE DETECTOR

P

D Q

R

2

XI

XO

M41T62

AFE

OFIE

SQWE

IRQ/OUT(Open drain)

SQWDefaults to32kHz.Can bedisabled.

400kHzI2C

INTERFACE

VCC

I2C

YEARMONTH

DAYDATE

HOURSMINSSECS10ths

100thsCENTURY BITS

ALARMWATCHDOG

OUTOSCILLATORFAIL DETECTSQUAREWAVECALIBRATION

VCC

I2C

C

OSC.32KHz

www.st.com/reset 3838

By D. SamsNVRAM Division

NEW STM682X FAMILY OF RESET ICs WITH WATCHDOGS

STM6821 5-pin reset block diagram

5-pin Reset Selector5-pin Reset Selector

Market IssuesMarket Issues

Active-high, Push-pullActive-low, Push-pull

Active-high and Active-low,Both Push-pull

Active-high and Active-low,Both Push-pull

Reset Output(s) ManualReset InputRoot P/N

STM6821STM6823

STM6824

STM6825

Watchdog

Small PackagesSmall Packages

4.65V4.40V3.08V2.93V2.63V

VRST (NOM)

While many processors today include these supervisoryfeatures, users often still add external units. Themicroprocessor’s on-chip references often lack thedesired precision. And external watchdogs will stillfunction when on-board ones fail. Other users prefertwo watchodgs, with the external one backing up theon-board one.

So the market for reset and supervisor devices is stillstrong and ST is positioning itself to be a player witha broad portfolio ranging from basic resets tomicroprocessor supervisors with switchover to high-end supervisors with real-time clocks and securityfeatures such as tamper detect and RAM clear.

SOT23-5L package

The 5-Pin Reset family comes in a tiny SOT23-5Lpackage, measuring 1.5 x 2.8 mm (nominal).

5-pin Reset Selector5-pin Reset Selector

2.8mm

1.5mmBasic P/N

STM682xLSTM682xMSTM682xTSTM682xSSTM682xR

A Reset circuit monitors the system power and providesthe Power-On Reset signal that initializes the processor,holding the processor in reset a short time to allow thesystem power to become stable. It continues to monitorthe system power, and if a Low Voltage is Detected,it resets the processor. These two functions are calledPOR-LVD, and they ensure the proper operation ofthe system.ST brought to market last year a series of 3 and 4 pinReset ICs that provide POR-LVD. The 4 pin versionsalso include Manual Reset inputs. Building on this,a new family of 5 pin Reset devices, which will beavailable early in 2005, will also include Watchdogtimers which protect against runaway software.POR-LVD and Watchdogs make systems more robust,more tolerant of real world events that can disruptsystem operation.

Four basic devices are being released now. Threemore, with open drain outputs, will come later.Present options include reset output polarity – activelow, active high or both – and Manual Reset input,Watchdog or both.Each basic device has five voltage options, with asixth option coming later in the year.

VCC

STM6821

WDI

RESET

MR

RESETTIMING

tREC=200ms

WATCHDOGTIMER

GND

www.st.com/mcu 3939

By F. GaillardMicrocontrollers Product Marketing

OPTIMIZED FOR SMALL-SCALE, COST SENSITIVE MICROCONTROLLER APPLICATIONS

Key Features and BenefitsKey Features and Benefits

Hardware and Software Development ToolsHardware and Software Development Tools

For fast and easy development, ST offers a wide rangeof state-of-the-art development tools including:

Starter kits;Real-time, in-circuit debugging kits;Mid-range to high-end emulators (DVP and EMUseries);Programmers;IDEs, C compilers (including free versions).

Web Support www.st.com/mcuWeb Support www.st.com/mcu

*Contact ST sales offices

ST7Lite family product guide

ST’s ST7Lite series consists of entry level standard8-bit Flash microcontroller devices ideal for cost-sensitive applications. It provides outstandingflexibility at every stage of the product cycle, fromfirst prototype to production logistics, ensuringreduced cost of ownership and fast time to market.

ST7Lite series come with a variety of integratedperipherals that make them versatile enough for a widerange of applications.All MCUs use the same single-voltage Flashtechnology and are programmed using the sametechniques and tools. They also share a commonemulator and software development platform.

The ST7Lite family is designed for ease of use withsilicon, software, development tools, reference designsand service, all in one package.

Low-cost 8-bit microcontroller with more on-chipfunctionalities, making applications smaller andeasier to design;Highly-accurate internal 1MHz RC oscillator;Data EEPROM;Trimmable internal low-voltage detector,

eliminates need for external power-on andbrown-out management circuits;Read-out protection against software piracy;Fast A/D converter (3.5µs conversion timeat 8MHz fCPU) including op-amp;Single-voltage Flash for fast programming;Fast and flexible timers for PWM generation,

output compare and input capture;Full set of development tools includingC compilers and in-circuit debuggers.

Discussion forums, knowledge base, FAQs, third-partydirectory and newsletter.

ApplicationsApplications

Lighting; Alarms; Home appliances;Sensors; Air-conditioning; Metering;Touch control; Motor control;DC/DC converters; Toys.

Mem

ory

8k

4k

1.5k

1k

16 20 28/32/36

Package (pins)

ST7LITE1*

ST7LITE0

ST7SUPERLITE

ST7LITE2

ST7LITE1

ST7LITE3*

ST7226x

www.st.com/mcu 4040

By N. de GuillebonST7 Microcontrollers Product Marketing

COST-EFFECTIVE 8-BIT MICROCONTROLLERS FOR ROBUST AND EASY DEVELOPMENT

FeaturesFeatures

ST7232x series general purpose microcontrollers areideal for applications requiring the most stringentAutomotive and Industrial standards, for medium tolarge memory capacities with various pin-countpackages in Flash and ROM versions.

Cost effectiveFast Program FLASH and cost effective ROM;Broad range of optimized Hardware peripherals.

RobustQualified with automotive and industrial standards;Robust design suitable for EMC-critical environments.

Scalable and portableFull pin-to-pin and peripherals compatibility;Easy re-use across a wide range of 5V and 3V

applications from 8k-32 pins up to 60k-80 pins.

Key BenefitsKey Benefits

ST7232x block diagram

Major Application AreasMajor Application Areas

A full ST7 software library of C routines to signify-cantly reduce coding time and development costsMore than 100 relevant application notes and

reference designs covering:Peripheral Usage and OptimizationLCD driver / analog keyboard driver / SMBusslave / SCI / LIN / SPI / I2C / timers drivers, etc.Application OptimizationEMC design guidelines / minimizing ADC conversionerrors / minimizing power consumption / etc.Software DriversST7 math utility routines / in-application programming /etc.

Easy DevelopmentEasy Development

For fast and easy development, ST offers a widerange of enhanced development tools:

Starter kits & evaluation boards;Real-time, in-circuit debugging kits;Real-time mid-range to high-end emulators (DVPand EMU series);Development & mass production Programmers;Software toolchain: IDEs, C compilers, debuggers,linkers (including free versions).

Hardware and Software Development ToolsHardware and Software Development Tools

Temperature range (0;70°C) up to (-40 ; 125°C)

8k / 16k / 32k

8k / 16k / 32k

48k / 60k

32k / 48k / 60k

60k

Memory Size

TQFP32

TQFP44

TQFP64

TQFP80

PackageP / N

ST72F324K

ST72F324J

ST72F321J

ST72F321AR

ST72F521M

INDUSTRIAL• Home appliance;

• Air conditioning;• Connectivity.

COMPUTER• Keyboard; • Mice;• UPS;• Printer, fax;• Game pad.

AUTOMOTIVE• Power train;• Engine

management.

High-density Flash and ROM program memory;Various serial interfaces: SPI, SCI, CAN & I2C;Up to 5 timers with PWMs, beep, Watchdog;10-bit ADC with 8 to 16 inputs, 7.5µs conversion time;Broad range of packages (32-pin up to 80-pin);Four power saving modes suitable for 5 and 3Vpower-critical applications;Integrated reset with scalable low-voltage detector.

16 bit Timer BPWM

Watchdog

8 bit TimerART - PWM

16 bit Timer APWM-ext CLK

BEEP

I/O Ports

AD10

SCI (UART)

SPI

I2C

CAN 2.0

3V or 5VPOWER SUPPLY

LVD

CONTROL

ST7 8-bitCORE ALU

PROGRAMMEMORY(8k to 60k)

RAM(384B to 2kB)

Internal RC

Oscillator

PLL 24 to 64inputs /outputs

VSS

VDD

RESET

IT

OSCIN

OSCOUT8 to 16inputs

www.st.com/mcu 4242

By E. PayetMicrocontroller Product Marketing

MICROCONTROLLER FOR 3-PHASE BRUSHLESS MOTOR CONTROL

Optimized and Low-CostOptimized and Low-Cost

What You Get With ST7MCWhat You Get With ST7MC

Already popular in industrial applications, three-phase BLDC and induction motors are increasinglyused in the appliance and automotive markets. Theyoffer numerous benefits for the consumer, includingsignificantly higher efficiency, lower acoustic noiseand improved reliability, compared to brush or singlephase motors. The cost of the electronic controller– the so-called ‘inverter’ – has decreased steadilyin recent years due to design integration and processoptimization, and the introduction of the ST7MCfamily is another distinct step in the direction ofcost reduction, higher integration and performance;available in small footprint packages it will allowmotor manufacturers to fit the complete inverterPCB within the motor casing.

The ST7MC devices feature ST’s on-chip motor controlperipheral, the MTC, which consists of a three-phasePulse Width Modulator multiplexed on six high-sinkoutputs, with a high-sensitivity Back EMF (BEMF)zero-crossing detector for the sensorless control ofpermanent magnet Brushless Direct Current (BLDC)motors. ST’s patented ‘three resistors’ sensorlesscontrol method – in conjunction with on-chipcomparators, op-amp and co-processor unit – providesthe lowest possible system cost and the highest systemintegration for BLDC motor control.The MTC’s input pins can also be configured for Hall,tachometer or encoder sensing. In addition,comprehensive filters and settings allow the controlof any star or delta wound motor, from 12V to 240V,in various control topologies (six-step / Sine wave,Current/Voltage, PAM / PWM).Based on an industry standard 8-bit core, the ST7MCfamily is available in dual voltage Flash memory andROM versions, from 8-Kbyte to 60-Kbyte, and invarious packages from the 32-pin TQFP32 (7 x 7mm)to the 80-pin TQFP80 (14 x 14mm). As well as themotor control peripheral, the devices feature a 10-bitADC, Serial Peripheral Interface (SPI), LocalInterconnect Network Serial Communications Interface(LINSCI) to make the family suitable for automotiveapplications, five sophisticated timers (8 and 16-bit)Temperature Range -40 to 85 °C

Ordering InformationOrdering Information

Flash and ROM products pin to pin compatible;Product family approach: 32-pin to 80-pin,8k to 60k;Single micro approach for control of three-phaseinduction and BLDC motors;Suitable for Star and Delta motors/compressorsfrom 12V to 300V;Voltage or Current Mode Control;Sensorless and Position/Speed control;PWM or PAM (Pulse Amplitude Modulation);6 Step or Sine Wave Signa;Dedicated HW Motor Control cell leaves 70% ofCPU resources free for non-motor control tasks.

8K / 384B

16K / 768B

32K / 1024B

32K / 1024B

48K / 1536B

60K / 1536B

Memory Size[Prog/RAM]

TQFP32

TQFP44

TQFP44

TQFP64

TQFP64

TQFP80

PackageP / N

ST7FMC1K2T6

ST7FMC2S4T6

ST7FMC2S6T6

ST7FMC2R6T6

ST7FMC2R7T6

ST7FMC2M9T6

In order to speed-up application development, theST7MC comes with a set of application notes whichdescribe the basic software libraries available fordifferent motor types, as well as some hints on howto benefit from the powerful ST7MC family features.

4343

ST7MC Starter KitST7MC Starter Kit

The ST7MC starter-kit is a comprehensive andinnovative development platform designed aroundthe new ST7MC microcontroller, targeted specificallyat motor control applications, which will reduce thetime-to-market and development cost of applicationsthat use three-phase brushless motors such asBrushless Direct Current (BLDC) and induction motors(including compressors). In addition to offering bothquick demonstration and in-depth evaluationcapabilities, the starter-kit’s comprehensive hardware,coupled with a no-concessions software package,allows a project to be debugged to an advanced stagein real time. It can provide a demonstration in a fewminutes, a full evaluation over perhaps several days,and actual project development and refinement overa number of weeks. The hardware platform consistsof a sensorless BLDC blower implementation; aninverter and control board; a high voltage

Application NotesApplication Notes

for control andprotection, and upto 60 I/O lines.Particular attentionhas been paid tore l iab i l i t y andsafety features. Atsystem level theST7MC includesan embeddedsecu re Rese tcircuit with LowVoltage Detector,and multiple clocksources with ClockSecurity System(CSS), all underSystem Integrity management. Within the MTCitself a set of programmable filters and windowingmechanisms guarantee reliable operation underhigh ambient noise conditions, and in the event ofsudden torque variations. A hardware asynchronous“emergency stop” provides efficient protectionfor power stages.

AN1904: ST7MC AC three-phase induction motorcontrol library;AN1905: ST7MC brushless permanent magnet

DC motor control library;AN1946: Brushless PMDC motor control with ST7MCAN1947: ST7MC brushless permanent magnet

AC Sinus motor control libray;AN1953: Active PFC library for ST7MC in inverterapplications;AN2009: PWM management for 3 phase BLDC

motor control with ST7MC;AN2030: BACK EMF detection during PWM on

time with ST7MC;AN2038: I2C emulation with ST7MC in slave mode;AN2039: ST7MC single-phase and bi-phase

induction motor control library.

isolation board; and a SofTec inDART-STXdebugger/programmer, with USB interface, forcommunication, programming and debugging.The complete system is intended to be connected toa PC, but can also be operated in standalone mode.

Q1 ‘05

Order Code: EXPRESS/71

Express provides up-to-date

information about

MICROS, LINEARS & DISCRETES.

If you wish to be included in our

mailing list contact

yvonne.cawthraw@st.com

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