KIT33927EKEVBE Evaluation Board User™s Guide

© Freescale Semiconductor, Inc., 2007-2008. All rights reserved.

Freescale Semiconductor KT33927UGUser�s Guide

KIT33927EKEVBE Evaluation Board User�s Guide

Rev 2.0, 3/2008

Important Notice

KIT33927EKEVBE Evaluation Board User�s Guide, Rev 2.0

Freescale Semiconductor

Important Notice

Freescale provides the enclosed product(s) under the following conditions:

This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY. It is provided as a sample IC pre-soldered to a printed circuit board to make it easier to access inputs, outputs, and supply terminals. This EVB may be used with any development system or other source of I/O signals by simply connecting it to the host MCU or computer board via off-the-shelf cables. This EVB is not a Reference Design and is not intended to represent a final design recommendation for any particular application. Final device in an application will be heavily dependent on proper printed circuit board layout and heat sinking design as well as attention to supply filtering, transient suppression, and I/O signal quality.

The goods provided may not be complete in terms of required design, marketing, and or manufacturing related protective considerations, including product safety measures typically found in the end product incorporating the goods. Due to the open construction of the product, it is the user's responsibility to take any and all appropriate precautions with regard to electrostatic discharge. In order to minimize risks associated with the customers applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. For any safety concerns, contact Freescale sales and technical support services.

As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may not meet the technical requirements of the directive. Please be aware that the products received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.).

Should this evaluation kit not meet the specifications indicated in the kit, it may be returned within 30 days from the date of delivery and will be replaced by a new kit.

Freescale reserves the right to make changes without further notice to any products herein. Freescale makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. �Typical� parameters can and do vary in different applications and actual performance may vary over time. All operating parameters, including �Typical�, must be validated for each customer application by customer�s technical experts.

Freescale does not convey any license under its patent rights nor the rights of others. Freescale products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale product could create a situation where personal injury or death may occur.

Should a Buyer purchase or use Freescale products for any such unintended or unauthorized application, The Buyer shall indemnify and hold Freescale and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Freescale was negligent regarding the design or manufacture of the part.

Freescale and the Freescale Logo are registered trademarks of Freescale, Inc. Freescale, Inc. is an Equal Opportunity/Affirmative Action Employer. Freescale and the Freescale Logo are registered in the US Patent and Trademark Office. All other product or service names are the property of their respective owners.

Table of ContentsParagraph Page Number Number

KIT33927EKEVBE Evaluation Board User�s Guide, Rev. 2.0

Freescale Semiconductor TOC-1

Important Notice

Chapter 1 Introduction and Setup1.1 Introduction ......................................................................................................................11.2 About this Manual ............................................................................................................21.3 Disposing of Old Appliances ............................................................................................21.4 Terms and Acronyms ......................................................................................................21.5 Warnings .........................................................................................................................31.6 Setup Guide .....................................................................................................................3

Chapter 2 Operational Description2.1 Introduction ......................................................................................................................42.2 Electrical Characteristics .................................................................................................4

Chapter 3 Pin Description3.1 Connectors and Test Points ............................................................................................53.2 40-Pin Connector J200 ....................................................................................................53.3 SPI Communication Connectors J201 and J202 .............................................................83.4 3-Pin Motor Connector J100 ............................................................................................83.5 Power Supply Connectors J1 and J7 ..............................................................................83.6 Connectors J2 - J6 ..........................................................................................................93.7 Connectors J101 - J109 ..................................................................................................93.8 Jumpers JP203 - JP206 for SPI Communication Selection ............................................93.9 Test points .....................................................................................................................10

Chapter 4 Design Considerations4.1 Overview ........................................................................................................................114.2 3-Phase FET Pre-driver MC33927 ................................................................................114.3 3-Phase Driver ...............................................................................................................114.4 Bus Voltage and Current Feedback ..............................................................................114.5 References ....................................................................................................................12

Appendix A KIT33927EKEVBE Evaluation BoardSchematics ...............................................13

Appendix B Bill of Materials ..................................................................................................18

Appendix C Layouts .............................................................................................................. 21

Appendix D Revision History ..................................................................................................23

Table of Contents


TOC-2 Freescale Semiconductor

List of FiguresFigure Page Number Number


Freescale Semiconductor LOF-1

Figure 1-1. System Configuration ...........................................................................................1Figure 1-2. KIT33927EKEVBE Evaluation Board ...................................................................2Figure 1-3. KIT33927EKEVBE Evaluation BoardSetup ..........................................................3Figure 3-1. 40-Pin Input Connector J200 ................................................................................6Figure A-1. Power Supply ......................................................................................................13Figure A-2. UNI-3 Connector .................................................................................................14Figure A-3. MC33927 Driver ..................................................................................................15Figure A-4. DC-Bus Voltage & Current Sensing ....................................................................16Figure A-5. 3-Phase N-MOS Bridge ......................................................................................17Figure C-1. MC33927 Evaluation Board Top Layer ...............................................................21Figure C-2. MC33927 Evaluation Board Bottom Layer .........................................................21Figure C-3. MC33927 Evaluation Board Silk-screen Layer ...................................................22

List of Figures


LOF-2 Freescale Semiconductor

List of TablesTable Page Number Number

KT33927 Evaluation Board User�s Guide, Rev. 2.0

Freescale Semiconductor LOT-1

Table 2-1. Electrical Characteristics ......................................................................................4Table 3-1. Changed Pins� Descriptions ..................................................................................5Table 3-2. Connector J200 Signal Description ......................................................................7Table 3-3. Connector J201 Signal Description ......................................................................8Table 3-4. Connector J202 Signal Description ......................................................................8Table 3-5. Connector J100 Signal Description ......................................................................8Table 3-6. Connectors J3-J6 Signal Description ....................................................................9Table 3-7. Connectors J101 - J109 Signal Description ..........................................................9Table 3-8. Jumpers JP1 - JP3 Selection ................................................................................9Table 3-9. Test points ..........................................................................................................10

List of Tables


LOT-2 Freescale Semiconductor

Introduction and Setup


Freescale Semiconductor 1

Chapter 1 Introduction and Setup

1.1 IntroductionThis User�s Manual describes the features, options and connections of the KIT33927EKEVBE Evaluation Board. Freescale�s KIT33927EKEVBE Evaluation Board is a low-voltage power stage that is an integral part of Freescale�s embedded motion control series of development tools. For additional information on Freescale�s Motion Control Development Tools go to www.freescale.com/motorcontrol In combination with one of the embedded motion control series, control evaluation boards, it provides a ready-made software development platform for small brushless DC motors among others. An illustration of the system configurations is shown in Figure 1-1 System Configuration.

The KIT33927EKEVBE Evaluation Board has the following features:� Connecting the Evaluation Board via a UNI-3 connector� SPI communication between the MC33927 Driver and a microcontroller� DC-Bus current and voltage sensing� Over-current detection with adjustable current maximum value� Optional input supply voltage of 8 - 42 Volts� 3.3V, 5V, and 12V voltage generation on the boards� Output 3-phase motor connector

Figure 1-2 KIT33927EKEVBE Evaluation Board depicts the board layout with descriptions of the components.

Figure 1-1. System Configuration

CONTROLLERBOARD

MC33927

MOTOR

WORKSTATION

MCF523xEC, MPC555, 56800/E HYBRID CONTROLLER, S12Exx MICROCONTROLLER

OPTIONAL FEEDBACK

EVALUATION BOARD

KIT33927EKEVBE

*

*

http://www.freescale.com/motorcontrol



2 Freescale Semiconductor

1.2 About this ManualKey items can be found in the following locations in this manual:

� Setup instructions are found in section 1.6 Setup Guide. � Pin-by-pin descriptions are contained in Table 3-1 up to Table 3-9. � For those interested in the reference design aspects of the board�s circuitry, a description is provided in Chapter 4

Design Considerations

Figure 1-2. KIT33927EKEVBE Evaluation Board

1.3 Disposing of Old AppliancesThe KIT33927EKEVBE Evaluation Board must be disposed of in compliance with current local waste disposal regulations. Disposing of old appliances should be done by a qualified company.

1.4 Terms and AcronymsBLDC Brushless dc

EVB Evaluation Board

Hall sensor Sensor whose output changes based on changes in magnetic flux. Used to measure motor position.

PWM Pulse width modulation

UNI-3 User-to-Network Interface




1.5 WarningsThe KIT33927EKEVBE Evaluation Board includes components which can reach temperatures hot enough to cause burns. To facilitate safe operation, the 8-volt to 42-volt input power should come from a dc laboratory power supply that is current limited to no more than 4.5 amps.

The user should be aware of:� Before moving scope probes, making connections, etc., it is generally advisable to power down the dc voltage supply. � Operating in lab setups that have grounded tables and/or chairs should be avoided. � It is also advisable to wear safety glasses, avoiding wearing ties and jewelry, use shields, and operate by personnel

trained in power electronics lab techniques are also advisable.

1.6 Setup GuideSetup and connections for the KIT33927EKEVBE Evaluation Board are straightforward. The KIT33927EKEVBE Evaluation Board connects to a Freescale embedded motion control series control board via a 40-pin ribbon cable. The motor�s power leads plug into output Motor connector (J100). Figure 1-3. KIT33927EKEVBE Evaluation BoardSetup depicts a completed setup.

Follow these steps to set up the board:1. Plug one end of the 40-pin ribbon cable supplied with Freescale�s embedded motion control series control boards into

input UNI-3 connector (J200), located at the edge of the KIT33927EKEVBE Evaluation Board. 2. Plug the free end of the cable into the control board�s 40-pin connector.3. Connect a 8-42 VDC power supply either to the power jack J7 labelled �8-42V�, or to the connector J1. 4. If protection features are desired, set the overcurrent detection comparator trimmer, R114, to 2.75 V. This value limits

dc bus current to 3 amps.5. Apply power to the KIT33927EKEVBE Evaluation Board. The yellow power-on LED is lit when power is present. Note

that the KIT33927EKEVBE Evaluation Board doesn�t power the control board, so the control board must be powered by means of an external 12 VDC power supply to run a complete system.

Figure 1-3. KIT33927EKEVBE Evaluation BoardSetup

MOTOR

MC33297

12-VOLTPOWER SUPPLY

CONTROL BOARD

40-PINRIBBON CABLE

J1

Evaluation Board

J4

8-42 VdcPOWER SUPPLY

Operational Description



Chapter 2 Operational Description

2.1 IntroductionFreescale�s embedded motion control series KIT33927EKEVBE Evaluation Board is a 8-42 Vdc, 4.5-amp, surface-mounted power stage. In combination with one of the embedded motion control series control boards, it provides a software development platform that allows algorithms to be written and tested without the need to design and build a power stage for small brushless dc motors, amongst others. It supports algorithms that use Hall sensors, a Quadrature encoder, and Zero-cross signals for sensor-less control.

The KIT33927EKEVBE Evaluation Board has an overcurrent protection that is implemented on the MC33927 driver and is independent of the control board. Current measuring circuitry is set up from -4.5 to 4.5 amps full scale. In a 25°C ambient operation at up to 4.5A, continuous RMS output current is within the board�s thermal limits.

The control interface is created via the 40-pin ribbon cable connector J200. Pin assignments for the input connector are shown in Figure 3-1 40-Pin Input Connector J200. Power connections to the motor are made on output connector J100. Phase A, B, and C are labelled on the board. Power requirements are met by a single external 8-42V, 5A power supply. Two connectors, labelled J7 and J1, are provided for the power supply. Both are located in one corner of the board.

For design information, see Chapter 4 Design Considerations.

2.2 Electrical CharacteristicsThe electrical characteristics in Table 2-1 apply to operation at 25°C and a 12-VDC power supply voltage.

Table 2-1. Electrical Characteristics

Characteristic Symbol Min Typ Max Units

Power Supply Voltage VDC 8 12 42 VQuiescent Current ICC � 10.4 � mALogic 1 Input Voltage VIH 2.1 � � VLogic 0 Input Voltage VIL � � 0.9 VAnalog Output Range VOUT 0 � 3.3 VBus Current Sense Voltage ISENSE � 366 � mV/ABus Voltage Sense Voltage VBUS � 69 � mV/VPower MOSFET On Resistance RDS(ON) � 45 55 mOhmContinuous Output Current ID � � 4.5 APulsed Output Current IDM � � 30 ATotal Power Dissipation PDISS � � 2.4 W

Pin Description



Chapter 3 Pin Description

3.1 Connectors and Test PointsInputs and outputs are located on connectors and test points. Pin descriptions for each of these connectors and the test points are identified in following informations.

3.2 40-Pin Connector J200Signal inputs and outputs are grouped together on the 40-pin connector J200, located on the top of the board. Pin assignments and descriptions are shown in Figure 3-1. 40-Pin Input Connector J200. Pin descriptions are listed in Table 3-1.

Please note that some J200 signals have a different usage than in the standard UNI-3 Interface. This is due to the need for the SPI communication MC33927 driver and the driver control signals - Reset, Enable, Over-current. Some pins on J200 are not connected, in comparison to the UNI-3 standard. Changed pin assignments are shown in Table 3-1.

For more information refer to References

Table 3-1. Changed Pins� Descriptions

Pin # UNI-3 Standard J12 Connector

19 +15V_A / +12V_A +12V

20 -15V_A / -12V_A Not connected

23 I_sense_A SPI_CSB

24 I_sense_B SPI_SO

25 I_sense_C SPI_SI

26 Temp_sense SPI_SCLK

29 Brake_control DRV_INT

30 Serial_con DRV_RST

31 PFC_PWM DRV_EN

32 PFC_enable OC_IRQ

33 PFC_z_c Not connected

38 BEMF_sense_A Not connected

39 BEMF_sense_B Not connected

40 BEMF_sense_C Not connected

Pin Description



Figure 3-1. 40-Pin Input Connector J200

40393837363534333231302928272625242322212019181716151413121110987654321

NCNCNCShieldingZero_cross_CZero_cross_BZero_cross_ANCcOC_IRQDRV_ENDRV_RSTINTShieldingReservedSCLKSISOCSBI_sense_DCBV_sense_DCBNC+12V_AGNDAGNDA+5V_A+5V_D+5V_DGNDGNDPWM_CBShieldingPWM_CTShieldingPWM_BBShieldingPWM_BTShieldingPWM_ABShieldingPWM_AT

SCHEMATIC VIEW

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PWM_ATPWM_ABPWM_BTPWM_BBPWM_CTPWM_CB

GND+5V_DGNDA

+12V_AV_sense_DCB

CSBSI

ReservedINT

DRV_ENReserved

Zero_cross_AShielding_A

NC

PHYSICAL VIEW

B

Pin Description



NOTE* Pins which are connected differently than in the User Network Interface, Version 3.0

(UNI-3) standard.

Table 3-2. Connector J200 Signal Description

Pin #

Signal Name Description

1 PWM_ATPWM_AT is the gate drive signal for the top bridge of phase A. A logic high at input connector J10 turns on the phase A top switch

3 PWM_ABPWM_AT is the gate drive signal for the bottom bridge of phase A. A logic high at input connector J10 turns on the phase A bottom switch

5 PWM_BTPWM_BT is the gate drive signal for the top bridge of phase B. A logic high at input connector J10 turns on the phase B top switch

7 PWM_BBPWM_AT is the gate drive signal for the bottom bridge of phase B. A logic high at input connector J10 turns on the phase B bottom switch

9 PWM_CTPWM_AT is the gate drive signal for the top bridge of phase C. A logic high at input connector J10 turns on the phase C top switch

11 PWM_CBPWM_AT is the gate drive signal for the bottom bridge of phase C. A logic high at input connector J10 turns on the phase C bottom switch

12 GND Digital power supply ground


17 AGND Analog power supply ground

18 AGND Analog power supply ground

19* +12V_A Analog power supply

20* NC Not connected.

21 V_SENSE_DCB V_sense is an analog sense signal that measures dc bus voltage.

22 I_SENSE_DCB I_sense is an analog sense signal that measures dc bus current.

23* CSB Chip select signal of the SPI communication.

24* SO Output signal of the SPI communication.

25* SI Input signal of the SPI communication.

26* SCLK Clock signal of the SPI communication.

27 NC Not Connected

28 Shielding_A Analog Shielding. Must be grounded on the power stage side only!

29* DRV_ INT MC33927 driver Interrupt signal.

30* DRV_RST MC33927 driver Reset signal.

31* DRV_EN MC33927 driver Enable signal.

32* OC_IRQ MC33927 driver Over-current signal

33* NC Not connected

34 Zero_cross_A Digital input. Phase A Back-EMF zero crossing.

35 Zero_cross_B Digital input. Phase B Back-EMF zero crossing.

36 Zero_cross_C Digital input. Phase C Back-EMF zero crossing.

37 Shielding_A Analog Shielding. Must be grounded on the power stage side only!




Pin Description



3.3 SPI Communication Connectors J201 and J202SPI signal inputs from the control board are grouped onto the 6-pin connector J201. Two signals (CSB, SO) are also available on the 2-pin connector J202. Pin descriptions are listed in Table 3-3 and Table 3-4.

The output signal SO from the MC33927 driver is connected to the control board�s input signal SI, and likewise the input signal SI from the MC33927 driver is connected to the control board�s output signal SO.

3.4 3-Pin Motor Connector J100Power outputs to the motor are located on the 3-pin connector J100, labeled �Motor Connector�. Pin descriptions are listed in Table 3-5.

3.5 Power Supply Connectors J1 and J7Two connectors, labelled J1 and J7, are provided for the 8-42 VDC power supply. Both connectors are used for power supply input, and are located in one corner of the board. The J7 connector is a 2.1mm power jack for plug-in type dc power supply connections, the J1 connector is a two-wire connector. The power supply should be able to deliver at least 3 amps.


Pin # Signal Name Description

1 NC Not Connected


3 CSB Chip select signal

4 SCLK Clock signal

5 SO Output signal

6 SI Input signal



1 SO Output Signal

2 CSB Chip Select signal



1 Phase_A Supplies power to motor phase A.

2 Phase_B Supplies power to motor phase B.

3 Phase_C Supplies power to motor phase C.

Pin Description



3.6 Connectors J2 - J6One-pin connectors J2 - J6 provide easy access to voltages available on the board. Connector descriptions are listed in Table 3-6.

3.7 Connectors J101 - J109One-pin connectors J101 - J109 provide connections to the additional operational amplifier U100B (MC33502D) and three invertors U101D-F (74HC04). Pin descriptions are listed in Table 3-7.

3.8 Jumpers JP203 - JP206 for SPI Communication SelectionThe jumpers JP203 - JP206 are used for SPI communication connector selection. The selection of signals is listed in Table 3-8.

Table 3-6. Connectors J3-J6 Signal Description

Connector # Signal Name Description

J2 V_BATT Power supply voltage

J3 +3.3V_A Analog power supply

J4 GND Power supply ground

J5 +5V Digital power supply

J6 +12V Digital power supply

Table 3-7. Connectors J101 - J109 Signal Description

Connector # Signal Name Description

J101 AMPi+ op. amplifier non-invert input

J102 AMPi- op. amplifier invert input

J103 AMPo op. amplifier output

J104 NEG1i invertor 1 input

J105 NEG1o invertor 2 output





Table 3-8. Jumpers JP1 - JP3 Selection

Jumper Name Position Comment for SPI communication

J203 1 2 For CSB signal where the UNI-3 connector is not selected.

J203 1-2 For CSB signal where the UNI-3 connector is selected.

J204 1 2 For SO signal where the UNI-3 connector is not selected.

J204 1-2 For SO signal where the UNI-3 connector is selected.

J205 1 2 For SI signal where the UNI-3 connector is not selected.

J205 1-2 For SI signal where the UNI-3 connector is selected.

J206 1 2 For SCLK signal where the UNI-3 connector is not selected.

J206 1-2 For SCLK signal where the UNI-3 connector is selected.

Pin Description



3.9 Test pointsSix test points provide easy access to the DC-Bus current and voltage sensing signals. They are listed in Table 3-9. along with their descriptions and locations.

Table 3-9. Test points

Test point no. Signal Name Locations

TP100 +1.65 Ref middle side of the board

TP101 OC_TH below IC U102

TP102 VDCB below connector J200

TP103 I_DCB+ right side of the resistor R100

TP104 IDCB- left side of the resistor R100

TP105 IDCB below connector J200

Position 1-2 Position 1 2




Chapter 4 Design Considerations

4.1 OverviewFrom a systems point of view, the KIT33927EKEVBE Evaluation Board fits into an architecture that is designed for code development. In addition to the hardware that is needed to run a motor, a variety of feedback signals that facilitate control algorithm development are provided.

Input PWM signals from a control board process the 3-phase FET pre-driver MC33927. The description of the pre-driver is contained in 4.2.

The KIT33927EKEVBE Evaluation Board power output stage is a complementary MOS field effect transistor (MOSFET) 3-phase bridge, capable of supplying and sensing 4.5 amps of continuous current. Feedback signals include bus voltage and the bus current. Descriptions of each of these blocks are contained in section 4.3, and in section 4.4.

4.2 3-Phase FET Pre-driver MC33927The 3-Phase FET Pre-driver (MC33927) is a FET pre-driver for 3-phase motor control and similar applications. The IC uses Freescale's SMARTMOS technology. The IC contains 3 high side FET pre-drivers and 3 low side pre-driver. Three external bootstrap capacitors provide gate charge to the high side FETs.

The IC contains internal registers to control the various operating parameters, modes and interrupt characteristics.These commands are sent and the status is read via 8-bit SPI commands. The IC will use the last 8 bits in a SPI transfer, so devices can be daisy-chained.

The return value from a SPI command is obtained via the SPI port on the subsequent command. It is in the SPI communication for the next command that the response is delivered.

The IC also contains the high speed amplifier for ground current sensing, and the over-current comparator for over-current detection. For more information on the pre-driver, refer to References.

4.3 3-Phase DriverThe output stage is configured as a 3-phase driver with complementary MOSFET output transistors. It is simplified considerably by dual integrated gate drivers that each have one inverting and one non-inverting driver. A simplified schematic showing one phase is illustrated in Figure A-5 3-Phase N-MOS Bridge.

One of the most important design decisions in a motor drive is the selection of the gate drive impedance for the output transistors. In Figure A-5 3-Phase N-MOS Bridge, resistors R101 (51 ohms), R102 (51 ohms), and diode D100 determine gate drive impedance for the upper half-bridge transistor. A similar network is used on the lower half-bridge. These networks set the turn-on gate drive impedance to approximately 100 Ohms and the turn-off gate drive impedance at approximately 50 Ohms. These values produce transition times of approximately 60ns. Transition times of this length represent a carefully weighed compromise between power dissipation and noise generation. Generally speaking, transition times longer than 250ns tend to get power hungry at non-audible PWM rates; and transition times under 50ns create di/dtfs so large that proper operation is difficult to achieve. The MC33927 EVB is designed with switching times at the lower end of this range to minimize power dissipation.

4.4 Bus Voltage and Current FeedbackFeedback signals proportional to bus voltage and bus current are provided by the circuitry shown in Figure A-4 DC-Bus Voltage & Current Sensing. Bus voltage is scaled down by a voltage divider consisting of R115 (47 kohms), R118 (1.8 kohms), and R120 (3.6 kohms). The values are chosen such that a 48-volt maximum bus voltage corresponds to a 3.3 volt maximum analog-to-digital (A/D) input.

Bus current is sampled by resistor R100, shown in Figure A-5 3-Phase N-MOS Bridge, and amplified by the MC33927 driver. This circuit provides a voltage output suitable for sampling with A/D inputs.

The gain is given by:

A = R117 / R121 (resistors are shown in Figure A-4 DC-Bus Voltage & Current Sensing)

The output voltage is shifted up by 1.65V, to accommodate both positive and negative current swings. A ±180mV voltage drop across the shunt resistor corresponds to a measured current range of ±4.5A and to a voltage range from 0 to 3.3V.

The over-current comparator, implemented on the MC33927 driver, is adjusted by the trimmer R114 (shown in Figure A-3 MC33927 Driver), where a 2.75 volt setting for the over-current detection comparator produces a 3.0A current limit.




4.5 References1. 3-Phase FET Pre-driver MC33927 Data Sheet2. UNI-3 Connector Specification3. Pittman�s Motors web: www.pittmannet.com4. Freescale�s web page: www.freescale.com5. Freescale�s Motor Control web page: www.freescale.com/motorcontrol

http://www.freescale.com

http://www.pittmannet.com

http://www.freescale.com/motorcontrol

KIT33927EKEVBE Evaluation BoardSchematics

13 KIT33927EKEVBE Evaluation Board, Rev. 2.0

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IAS

12

VO

UT

13

PW

RG

ND

14

SW

_L

15

SG

ND

16

EXPOSED_PAD17

G18

G19

G20

G21

U4

LT

3433IF

E

U4

LT

3433IF

EC3100nF/16V C3100nF/16V

R2

3k

R2

3k

D7

BA

S16H

T1

D7

BA

S16H

T1

R5

3k

R5

3k

C4100nF/16V C4100nF/16V

C7

10

0n

F/1

00

VC

71

00

nF

/10

0V

+C

18

1uF

100V

+C

18

1uF

100V

L3

TD

K T

H/2

20uH

DO

3316P

-224

L3

TD

K T

H/2

20uH

DO

3316P

-224

D6

MB

RA

120E

T3

D6

MB

RA

120E

T3

C20

100nF

16V

C20

100nF

16V

C8

10

0n

F/5

0V

C8

10

0n

F/5

0V

1 2J1

CO

N/2

scre

ws

J1

CO

N/2

scre

ws

D5

BA

S16H

T1

D5

BA

S16H

T1

AN

OD

EC

AT

HO

DE

D4

MB

RA

160T

3

D4

MB

RA

160T

3

L1

TD

K

TH

/10

0u

H

L1

TD

K

TH

/10

0u

H

C5100nF/16V C5100nF/16V

C24

330pF

10V

C24

330pF

10V

TP

2

+12V

TP

2

+12V

R8

174k-1

%

R8

174k-1

%

1J4

GN

D

J4

GN

D

C22

10nF

10V

C22

10nF

10V

Vin

1

Gnd2

CE

3

Vout

5

U2

MC

78

PC

33

NT

RU

2M

C7

8P

C3

3N

TR

C25

1nF

10V

C25

1nF

10V

1J2

V_

BA

TT

J2

V_

BA

TT

1J3

+3.3

V_A

J3

+3.3

V_A

+C

9

22

uF

/20

V

+C

9

22

uF

/20

V

C1

10

nF

/50

V

C1

10

nF

/50

V

C23

0.1

uF

10V

C23

0.1

uF

10V

VIN

3V

OU

T2

VO

UT

4G

ND

1

U3

MC

33269S

T-3

.3T

3U3

MC

33269S

T-3

.3T

3

C1

0

10

0n

F

C1

0

10

0n

F

LE

D_

ON

1

YE

LL

OW

LE

D_

ON

1

YE

LL

OW

C19

100nF

100V

C19

100nF

100V

R6

68k

R6

68k

D3

SM

/1N

40

01

D3

SM

/1N

40

01

R7

20k-1

%

R7

20k-1

%

R3

20

0k

R3

20

0k

D2MBR0520LT3 D2MBR0520LT3

+C

62

2u

F/1

00

V

+C

62

2u

F/1

00

V

TP

1

+5V

_A

TP

1

+5V

_A

+C

13

47uF

/6.3

V

+C

13

47uF

/6.3

V

+C

21

47uF

25V

+C

21

47uF

25V

+

C233uF/16V

+

C233uF/16V

GC

1

Gro

un

d_

Co

nn

ectio

n

GC

1

Gro

un

d_

Co

nn

ectio

n

+C

12

10

uF

/6.3

V

+C

12

10

uF

/6.3

V

C14

100nF

C14

100nF

TS

1

BZ

W0

6-4

0

TS

1

BZ

W0

6-4

0

C1

1

10

0n

F

C1

1

10

0n

F

D1

MB

RD

66

0C

T

D1

MB

RD

66

0C

T

C15

100nF

C15

100nF

+C

26

1uF

100V

+C

26

1uF

100V

R1

33

0R

R1

33

0R

C17

1uF

20V

C17

1uF

20V

KIT33927EKEVBE Evaluation Board, Rev. 2.0 14

Figu

re A

-2. U

NI-3

Con

nect

or

ZC

_A

ZC

_C

ZC

_B

PW

M_A

T

PW

M_C

T

PW

M_B

B

PW

M_B

T

PW

M_A

B

PW

M_C

BS

IS

CLK

SO

SO

CS

B

CS

B

INT

DR

V_E

N/D

RV

_R

ST

OC

_IR

QC

SB

SO

SI

SC

LK

+5V

_A

+5V

+12V

GN

DG

ND

GN

DA

GN

DA

GN

DA

+12V

+5V

_A

GN

D

GN

DA

GN

D_LS

FE

T

+3.3

V_A

VD

D

+3.3

V

+5V

V_D

CB

I_D

CB

+12V

+5V

_A

GN

DA

GN

D

+3.3

V

VD

D

+3.3

V_A

GN

D_LS

FE

T

+5V

SPI

+5V_D

+5V_D

GND

GND

GNDA

GNDA

Ctrl6/PWM_CB

Shielding_A

Ctrl4/PWM_BB

Ctrl3/PWM_BT

Ctrl2/PWM_AB

Brake_control

Zero_cross_C

BEMF_sense_A

Serial_Con

I_sense_A

V_sense_DCB

Shielding_A

I_sense_DCB

Ctrl5/PWM_CT

Shielding_D

PFC_PWM

Ctrl1/PWM_AT

BEMF_sense_C

I_sense_B

Shielding_D

I_sense_C

+15V_A/+12V_A

Shielding_D

Shielding_D

Shielding_D

Zero_cross_B

Zero_cross_A

BEMF_sense_B

UNI-3 Connector

PFC_enable

PFC_z_c

Reserved

Temp_sense

-15V_A/-12V_A

+5V_A

According to UNI-3 spec.

Optio

nal S

PI C

onnect

ion w

hen

the s

epara

te 5

in-lin

e-p

in o

r6-d

ouble

-lin

e-p

in is

unusa

ble

Zero

cro

ss p

ins

- if

applic

atio

n r

un w

ished

with

out ext

ern

al H

S

CP

U....D

RV

----

---

-

----

-M

OS

I....S

OM

ISO

....S

I

Pla

ce the c

onns

close

to J

200 (

for

ctrl b

oard

counte

rpart

s):

UN

I-3pin

1 tow

ard

s S

PI1

pin

1 &

J201/J

202 in

line a

s sh

ow

n

Com

patib

ility

Connect

ions:

p5-S

S...C

SB

-2(J

202)/

-3(J

201)

p4-M

OS

I...S

O-1

(J202)/

-5(J

201)

p3-M

ISO

...S

I-6(J

201)

p2-S

PS

CK

...S

CLK

-4(J

201)

p1-G

ND

-2(J

201)

12

J205

SS

el3

J205

SS

el3

12

J203

SS

el1

J203

SS

el1

12

34

56

J201

SP

I1

J201

SP

I1

12

J204

SS

el2

J204

SS

el2

1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40 J2

00

UN

I-3

J200

UN

I-3

12

J206

SS

el4

J206

SS

el4C

202

12nF

C202

12nF

R201

100R

R201

100R

12

J202

SP

I2

J202

SP

I2

C201

12nF

C201

12nF

R202

100R

R202

100R



Figu

re A

-3. M

C33

927

Driv

er

AM

P_N

AM

P_P

AM

P_O

UT

SC

LKS

IC

SB

SO

OC

_IR

Q

DR

V_E

N

/DR

V_R

ST

INT

ZC

_A

ZC

_BZ

C_C

PW

M_A

B

PW

M_B

B

PW

M_C

B

PW

M_A

T

PW

M_B

T

PW

M_C

T

+5V

VD

D

+5V

VD

D

GN

D_L

SF

ET

GN

D_L

SF

ET

GN

D_L

SF

ET

DC

B_P

OS

GN

DG

ND

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

+12

V

+5V

_A

GN

D

GN

DA

GN

D_L

SF

ET

+3.

3V_A

VD

D

+3.

3V

+5V

PA

_HS

_G

PA

_LS

_G

PB

_HS

_G

PB

_LS

_G

PC

_HS

_G

PC

_LS

_GP

H_C

PH

_B

PH

_A

+12

V

+5V

_A

GN

DA

GN

D

+3.

3V

VD

D

+3.

3V_A

GN

D_L

SF

ET

+5V

Pla

ce a

s cl

ose

aspo

ssib

le to

the

pins

.

Dec

oupl

ing

capa

cito

rP

lace

as

clos

e as

pos

sibl

eto

VD

D p

in o

f U10

0

Pla

ce a

s cl

ose

aspo

ssib

le to

the

pins

.

MC

3392

7 D

rive

r

J106

NE

G2i

J106

NE

G2i

1

C11

1

470n

F/6

.3V

C11

1

470n

F/6

.3V

U10

2

MC

3392

7

U10

2

MC

3392

7

Pha

seA

1

PG

ND

for

QP

UM

P2

EN

AB

LE1

3

EN

AB

LE2

4

RE

SE

TB

5

N/C

6

PU

MP

7

VP

UM

P(1

2V)

8

VB

AT

T(4

2V)

9

Pha

seB

10

Pha

seC

11

nPA

_HS

12

PA

_LS

13

VD

D14

nPB

_HS

15

PB

_LS

16

INT

17

CS

B18

SI

19

SC

LK20

SO

21

PC

_LS

22

nPC

_HS

23

AM

P_O

UT

24

AM

P_N

25

AM

P_P

26

OC

_Out

27O

C_T

H28

VS

S29

GN

D0

30G

ND

131

VLS

_CA

P32

N/C

33P

GN

DC

34P

C_L

S_G

35P

C_H

S_S

36P

C_H

S_G

37P

C_B

OO

TS

TR

AP

38P

GN

DB

39P

B_L

S_G

40P

B_H

S_S

41P

B_H

S_G

42P

B_B

OO

TS

TR

AP

43P

GN

DA

44P

A_L

S_G

45P

A_H

S_S

46P

A_H

S_G

47P

A_B

OO

TS

TR

AP

48N

/C49

N/C

50V

LS51

N/C

52N

/C53

VP

WR

54

C10

815

0nF

/50V

C10

815

0nF

/50V

+C

101

60V

2.2u

F+

C10

1

60V

2.2u

F

R12

5

10k

R12

5

10k

U10

1C

74H

C04

D

U10

1C

74H

C04

D

56

C10

615

0nF

/50V

C10

615

0nF

/50V

C10

715

0nF

/50V

C10

715

0nF

/50V

C11

2

100n

/6.3

V

C11

2

100n

/6.3

V

VC

C

GN

DU10

1A

74H

C04

D

VC

C

GN

DU10

1A

74H

C04

D

12

714

TP

101

OC

_TH

TP

101

OC

_TH

J109

NE

G3o

J109

NE

G3o1

C10

9

25V

100n

FC

109

25V

100n

F

R12

7

10k

R12

7

10k

R12

410

kR

124

10k

J107

NE

G2o

J107

NE

G2o1

C10

5

25V

100n

FC

105

25V

100n

F

J104

NE

G1i

J104

NE

G1i

1

J105

NE

G1o

J105

NE

G1o1

R12

6

10k

R12

6

10k

J108

NE

G3i

J108

NE

G3i

1

U10

1F

74H

C04

D

U10

1F

74H

C04

D

1213

+C

104

2.2u

F/2

5V

+C

104

2.2u

F/2

5V

U10

1E

74H

C04

D

U10

1E

74H

C04

D

1011

C10

2

60V

1nF

C10

2

60V

1nF

+

C11

02.

2uF

/25V

+

C11

02.

2uF

/25V

U10

1D

74H

C04

D

U10

1D

74H

C04

D

89

R11

4 10k

R11

4 10k

1

2

3

U10

1B

74H

C04

D

U10

1B

74H

C04

D

34

C10

3

100n

F/6

.3V

C10

3

100n

F/6

.3V

KIT33927EKEVBE Evaluation Board, Rev. 2.0 16

Figu

re A

-4. D

C-B

us V

olta

ge &

Cur

rent

Sen

sing

AM

P_N

AM

P_P

I_D

CB

US

_PO

S

AM

P_O

UT

I_D

CB

US

_NE

G

+3.

3V_A

GN

DA

GN

DA

GN

DA

GN

DA

+3.

3V_A

+3.

3V_A

V_D

CB

DC

B_P

OS

DC

B_N

EG

I_D

CB

DC

-Bu

s V

olt

age

& C

urr

ent

Sen

sin

g

DC B

us C

urre

nt S

ensi

ngDC

Bus

Vol

tage

Sen

sing

3.30

V @

48V

0~3.

3V @

-4.

5 ~

4.5

AO

pAm

p is

with

in3P

P-A

R11

547

k-1%

R11

547

k-1%

J102

AM

Pi-

J102

AM

Pi-

1

R12

21.

2k-1

%R

122

1.2k

-1%

+ -U

100A

MC

3350

2D

+ -U

100A

MC

3350

2D

123

48

R11

6

10k-

1%

R11

6

10k-

1%

R12

910

kR

129

10k

R12

311

k-1%

R12

311

k-1%

C11

3

100n

F

C11

3

100n

F

TP

104

I_D

CB

-

TP

104

I_D

CB

-

R12

0

3.6k

-1%

R12

0

3.6k

-1%

D10

7M

BR

A16

0T3

D10

7M

BR

A16

0T3

R11

7

11k-

1%

R11

7

11k-

1%C

100

10n/

6.3V

C10

010

n/6.

3V

J103

AM

Po

J103

AM

Po

1

R12

11.

2k-1

%R

121

1.2k

-1%

TP

102

VD

CB

TP

102

VD

CB

R12

810

kR

128

10k

TP

103

I_D

CB

+

TP

103

I_D

CB

+T

P10

5

IDC

B

TP

105

IDC

B

+ -U

103B

MC

3350

2D

+ -U

103B

MC

3350

2D765

D10

6

MB

RA

160T

3

D10

6

MB

RA

160T

3

J101

AM

Pi+

J101

AM

Pi+

1

R11

9

10k-

1%

R11

9

10k-

1%

TP

100

+1.

65re

f

TP

100

+1.

65re

f

R11

81.

8k-1

%R

118

1.8k

-1%



Figu

re A

-5. 3

-Pha

se N

-MO

S B

ridge

I_D

CB

US

_N

EG

I_D

CB

US

_P

OS

GN

D_LS

FE

T

PA

_H

S_G

PA

_LS

_G

PB

_H

S_G

PB

_LS

_G

PC

_H

S_G

PC

_LS

_G

PH

_C

PH

_B

PH

_A

DC

B_P

OS

DC

B_N

EG

PH

_A

PH

_B

PH

_C

Cre

ate

th

e ju

nct

ion

s a

s

clo

se t

o t

he

re

sist

or

R1

00

as

po

ssib

le.

3-Phase N-MOS Bridge

40

mV

/1A

3-ph. Motor Connector

3-p

in M

ole

x 3

9-2

6-3

03

0 (

ma

ting

with

26

-11

-20

33

)

Tyc

oe

lect

ron

ic:

64

03

87

-3 /

Fa

rne

ll 1

45

30

26

-

p

in 1

: P

ha

se A

(b

row

n)

-

p

in 2

: P

ha

se B

(re

d)

-

p

in 3

: P

ha

se C

(o

ran

ge

)

3

4

6

5

Q104-2

Si4

946E

Y

Q104-2

Si4

946E

Y

1 2 3

J100

3-p

h. M

oto

r

J100

3-p

h. M

oto

r

R108

51R

R108

51R

R111

51R

R111

51R

D105

MB

RM

140T

3 D105

MB

RM

140T

3

3

4

6

5

Q105-2

Si4

946E

Y

Q105-2

Si4

946E

Y

D103

MB

RM

140T

3 D103

MB

RM

140T

3D

101

MB

RM

140T

3 D101

MB

RM

140T

3

R104

51R

R104

51R

R109

51R

R109

51R

R107

51R

R107

51R

R105

51R

R105

51R

1

2

7

8

Q102-1

Si4

946E

Y

Q102-1

Si4

946E

Y

12

R100

0.0

40-1

%

R100

0.0

40-1

%

D104

MB

RM

140T

3 D104

MB

RM

140T

3

R110

51R

R110

51R

1

2

7

8

Q100-1

Si4

946E

Y

Q100-1

Si4

946E

YR

101

51R

R101

51R

R102

51R

R102

51R

R112

51R

R112

51R

D102

MB

RM

140T

3 D102

MB

RM

140T

3D

100

MB

RM

140T

3 D100

MB

RM

140T

3

1

2

7

8

Q101-1

Si4

946E

Y

Q101-1

Si4

946E

YR

103

51R

R103

51R

R106

51R

R106

51R

3

4

6

5

Q103-2

Si4

946E

Y

Q103-2

Si4

946E

Y

Bill of Materials



Appendix B Bill of Materials Qty. Reference Part Value Description Mfg. Mfg. Part No.

1 C1 10nF/50V Ceramic capacitor, 0805, 10nF AVX 08055G103KAT1A

1 C2 22µF/ 16V Ceramic capacitor, 1206, 22µF AVX 1206YD226KAT1A

3 C3, C4, C5 100nF/ 25V Ceramic capacitor, 0805, 100nF AVX 08053G104KAT1A

1 C6 22µF/ 100V Electrolytic Capacitor8mm, 22µF/100 V Jamicon SKR220M2AFBB

1 C7 100nF/ 100 V Ceramic capacitor, 0805, 100nF AVX 08051C104KAT1A

1 C8 100nF/ 50 V Ceramic capacitor, 0805, 100nF AVX 08055C104KAT1A

1 C9 22µF/ 16V Ceramic Capacitor1206, 22µF/16 V AVX 1206YD226KAT1A

12

C10,C11,C14,C15, C19,C20,C23,C103, C105,C109,C112,

C113

100nF/50 V Ceramic capacitor, 0805, 100nF AVX 08055C104KAT1A

1 C12 10µF/ 6.3V Ceramic Capacitor1206, 10µF/6.3 V AVX 1206ZC106KAT1A

2 C13, C16 47µF/ 6.3V Tantal Capacitor1206, 47µF/6.3 V AVX 12066D476KAT1A

1 C17 1µF/ 10V Ceramic capacitor, 0805, 1µF AVX 0805ZG105ZAT1A

2 C18, C26 1µF/ 50V Ceramic capacitor, 1206, 1µF TDK C3216X5R1H105K

1 C21 47µF/ 16V Ceramic capacitor, 1210, 2x 22µF/16 TDK C3225X5R1C226M

1 C22 10nF/ 50V Ceramic capacitor, 0805, 10nF AVX 08055G103ZAT1A

1 C24 330pF/ 100 V Ceramic capacitor, 0805, 330pF AVX 08055G331ZAT1A

2 C25, C102 10nF/50 V Ceramic capacitor, 0805, 10nF AVX 08055G102ZAT1A

1 C101 2.2µF/ 63V Electrolytic Capacitor5mm, 2.2µF/ V Jamicon SKR2R2M1JFBB

2 C104, C110 2.2µF/ 25V Ceramic Capacitor1206, 2.2µF/25 V AVX 12065C225KAT1A

3 C106, C107, C108 150nF/50 V Ceramic capacitor, 0805, 150nF AVX 08055C154KAT1A

2 C201, C202 12nF/50 V Ceramic capacitor, 0805, 12nF AVX 08055G120ZAT1A

1 D1 MBRD660CT Power Rectifiers ONSEMI MBRD660CTG1 D2 MBR0520LT1 Shottky Rectifier ONSEMI MBR0520LT1G1 D3 SM/1N4001 Standard Rectifier ONSEMI 1N40013 D4, D106, D107 MBRA160T3 Shottky Rectifier ONSEMI MBRA160T3G2 D5, D7 BAS16HT1 Switching Diode ONSEMI BAS16HT1G1 D6 MBRA120ET3 Shottky Power Rectifier ONSEMI MBRA120ET3G

6 D100, D101, D102, D103, D104, D105 MBRM140T3 Shottky Power Rectifier ONSEMI MBRM140T3G

Bill of Materials



1 J1 CON/2 screws 2-pin connector PTR Mess Technik AR500/2

14

J2, J3, J4, J5, J6, J101, J102, J103, J104, J105, J106, J107, J108, J109

EXP. HEADER 1-Way Header MOLEX 22-28-4020

1 J7 PWR Jack Power Jack type connector 2.5mm CUI stack PJ-002A

1 J100 3-ph. Motor 3-Way Header MOLEX 39-26-3030

1 J200 UNI-3 Header 40 pins breakway connector Fisher Elektronik ASLG40G

6 J201, J202, J203, J204, J205, J206 EXP. HEADER 2-Way Header MOLEX 22-28-4020

1 LED_ON1 YELLOW 0805 LED diode yellowChicago

Miniature Lamp INC

7012x13

1 L1 TH / 100mH Inductor TDK TSL0709 -101KR66-PF1 L2 1mH Inductor TDK SP0508-102KR19-PF3 L3 TH / 220mH Inductor TDK TSL0709 -221KR44-PF

3 Q100, Q101, Q102 SI4946BEY DUAL N-channel MOSFET VISHAY Si4946BEY-T1--E3

1 R1 330R Resistor 330Ohm, 5%, 0805 Multicomp MC 0.1W 0805 5%

330R

2 R2, R5 3k Resistor 3kOhm, 5%, 0805 Multicomp MC 0.1W 0805 5% 3k

1 R3 200k Resistor 200kOhm, 5%, 0805 Multicomp MC 0.1W 0805 5%

200k

1 R4 100k Resistor 100kOhm, 5%, 0805 Multicomp MC 0.1W 0805 5%

100k

1 R6 68k Resistor 68kOhm, 5%, 0805 Multicomp MC 0.1W 0805 5% 68k

1 R7 18k-1% Resistor 18kOhm, 1%, 0805 Multicomp MC 0.1W 0805 1% 18k

1 R8 160k-1% Resistor 160kOhm, 1%, 0805 Multicomp MC 0.1W 0805 1%

160k1 R100 0.040-1% Resistor 0.04Ohm, 1%, Vishay LVR03R0400FE1231

12

R101, R102, R103, R104, R105, R106, R107, R108, R109, R110, R111, R112

51R Resistor 51Ohm, 5%, 0805 Multicomp MC 0.1W 0805 5% 51R

6 R124, R125, R126, R127, R128, R129 10k Resistor 10kOhm, 5%,

0805 Multicomp MC 0.1W 0805 5% 10k

1 R114 10k Trimmer Vishay ST-4EG-103

1 R115 47k -1% Resistor 47kOhm, 1%, 0805 Multicomp MC 0.1W 0805 1% 47k

2 R116, R119 10k - 1% Resistor 10 kOhm, 1%, 0805 Multicomp MC 0.1W 0805 1% 10k

2 R117, R123 11k - 1% Resistor 11kOhm, 1%, 0805 Multicomp MC 0.1W 0805 1% 11k

1 R118 1.8k - 1% Resistor 1.8 kOhm, 1%, 0805 Multicomp MC 0.1W 0805 1% 1k8

Qty. Reference Part Value Description Mfg. Mfg. Part No.

Bill of Materials



1 R120 3.6k - 1% Resistor 3.6kOhm, 1%, 0805 Multicomp MC 0.1W 0805 1% 3k6

2 R121, R122 1.2k - 1% Resistor 1.2 kOhm, 1%, 0805 Multicomp MC 0.1W 0805 1% 1k2

2 R201, R202 100R Resistor 100Ohm, 5%, 0805 Multicomp MC 0.1W 0805 5%

100R

1 TS1 BZW06-40Bidirectional Transient

Voltage Suppressor Diode

Diotec BZW06-40

1 U1 LM5007High Voltage Step Down Switching

Regulator

National Semiconductor LM5007MM

1 U2 MC78PC33NTR Linear Voltage Regulator ONSEMI MC78PC33NTRG

1 U3 MC33269ST-3.3T3 Voltage Regulator ONSEMI MC33269ST-3.3T3G

1 U4 LT3433IFE High Voltage DC/DC Converter

Linear Technology LT3433IFE#PBF

1 U100 MC33502D Dual Operation Amplifier ONSEMI MC33502DG

1 U101 74HC04D 6 x Invertor ONSEMI MC74HC04ADG1 U102 MC33927 3-Phase FET Pre-driver Freescale MCZ33927EK

Qty. Reference Part Value Description Mfg. Mfg. Part No.

Layouts



Appendix C Layouts

Figure C-1. MC33927 Evaluation Board Top Layer

Figure C-2. MC33927 Evaluation Board Bottom Layer

Layouts



Figure C-3. MC33927 Evaluation Board Silk-screen Layer

Revision History



Appendix D Revision History

REVISION DATE DESCRIPTION OF CHANGES

0.0 1/2006 � Initial Release

1.0 10/2006 � Lead-free version update

2.0 11/2007 � Updated to current Freescale format.

KT33927UGRev. 2.0, 10/2007

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KIT33927EKEVBE Evaluation Board User™s Guide