FEB-L009 User Guide FL6961 Evaluation Board...37 C105 2.2nF/1kV 1 Y-Capacitor 38 C106 2.2uF 1 SMD Capacitor 0805 39 C107 30pF 1 SMD Capacitor 0805 40 C108 100nF 1 SMD Capacitor 0805

www.fairchildsemi.com

© 2011 Fairchild Semiconductor Corporation 1 FEB -FL009_FL6961 • Rev. 1.0.0

FEB-L009 User Guide

FL6961

Evaluation Board

Featured Fairchild Product: FL6961

http://www.fairchildsemi.com/evalboard/

http://www.fairchildsemi.com/evalboard/



Table of Contents

1. Introduction ................................................................................................................................ 3

1.1. General Description of FL6961 ................................................................................................ 3

1.2. Features of FL6961................................................................................................................... 3

1.3. Internal Block Diagram of FL6961 .......................................................................................... 4

2. General Specifications for Evaluation Board ............................................................................ 5

2.1. A Photograph of the Evaluation Board .................................................................................... 6

2.2. Printed Circuit Board ................................................................................................................ 7

2.3. Schematic of the Evaluation Board .......................................................................................... 8

2.4. Bill of Material ......................................................................................................................... 9

2.5. Connections Transformer and Winding Specifications .......................................................... 11

3. Test Condition & test equipment ............................................................................................. 12

3.1. Electrical Performances .......................................................................................................... 13

3.2. Temperature Checking Results on Board ............................................................................... 18

3.3. Operation Waveforms ............................................................................................................ 20

3.4. Protection & voltage stress ..................................................................................................... 26

3.5. EMI : Conducted Emission .................................................................................................... 35

.



The following user guide supports the demonstration kit for the FL6961. It should be used

in conjunction with the FL6961 datasheet as well as Fairchild’s application notes and

technical support team. Please visit Fairchild’s website at www.fairchildsemi.com.

1. Introduction

This document describes the proposed solution for an universal LED ballast using the

FL6961 CRM PFC controller. The input voltage range is 90VRMS – 265VRMS and there is

one DC output with a constant current of 700mA @ 24Vmax. This document contains

general description of FL6961, the power supply specification, schematic, bill of materials

and the typical operating characteristics.

1.1. General Description of FL6961

The FL6961 is an active power factor correction (PFC) controller for boost PFC

applications that operates in critical conduction mode (CRM). It uses the voltage mode

PWM that compares an internal ramp signal with the error amplifier output to generate

MOSFET turn-off signal. Because the voltage-mode CRM PFC controller does not need

rectified AC line voltage information, it saves the power loss of the input voltage sensing

network necessary for the current-mode CRM PFC controller.

1.2. Features of FL6961

Boundary Mode PFC Controller

Low Input Current THD

Controlled On-time PWM

Zero Current Detection

Cycle-by-cycle Current Limiting

Leading-edge blanking instead of RC filtering

Low Start-up Current: 10uA (typical)

Low Operating Current: 4.5mA (typical)

Feedback Open-Loop Protection

Programmable Maximum On-Time (MOT)

Output Over-Voltage Clamping Protection

Clamped Gate Output Voltage 16.5V



1.3. Internal Block Diagram of FL6961

Figure 1. Internal Block Diagram of FL6961



2. General Specifications for Evaluation Board

Table 1. Evaluation Board Specifications for LED Lighting Bulb

Main Controller FL6961

Input Voltage Range 90Vac~265Vac

Input Voltage Frequency 47Hz~63Hz

Rated Output Power 16.8W

Rated Output Voltage 24V

Rated Output Current 0.7A

Application LED Lighting Bulb

Board Size [mm]

(LengthXWidthXHeight) 110X50X27

All data of the evaluation board were measured under a condition where the board was

enclosed in a case and external temperature was around 25℃.



2.1. A Photograph of the Evaluation Board

Figure 2. Top View of Evaluation Board

Figure 3. Bottom View of Evaluation Board



2.2. Printed Circuit Board

Top side view of reference board

Bottom side view of reference board

Figure 4. PCB(Printed Circuit Board) pattern of reference board



2.3. Schematic of the Evaluation Board

F1

01

C1

02

LF

10

2

D1

01

U1

02

D1

02

C1

05

R1

10

R1

09

C1

07

D2

04

D2

01C

20

1

L2

01

C2

02

R2

01

,R2

02

,R2

03

,R2

04

R2

05

R2

06

R2

11

R2

09

R2

10

R2

07

C2

03

R2

12

C2

04

D2

03

D2

02

R2

13

KA

35

8

KA

35

8

CC

Co

ntro

l Pa

rt

CV

Co

ntro

l Pa

rt

R1

01, R

10

2,R

10

3 in

se

ries

FL6961

1234

8765

C1

03

C1

04

R1

04

R1

05

C1

06

R1

07

R1

12

R1

13

R1

11

D1

03

R1

08

Q1

01

T1

C1

09

D2

05

INV

CO

MP

MO

T

CS

ZC

D

GN

D

OU

T

VC

C

U1

01

U2

01

U2

02

R2

08

C2

05

LF

10

1

C1

01

L1

01

L1

02

C1

08

R1

06

VC

C fo

r OP

-am

p

Figure 5. FL6961 Schematic



2.4. Bill of Material

Item Number Part Reference Value Quantity Description (Manufacturer)

1 U101 FL6961 1 CRM PFC controller (Fairchild Product)

2 U102 FOD817 1 Opto-coupler (Fairchild Product)

3 U201 KA431 1 Shunt regulator (Fairchild Product)

4 U202 KA358A(LM2904) 1 Dual OP Amp (Fairchild Product)

5 Q101 FQPF3N80C 1 800V/3A MOSFET (Fairchild Product)

6 D101 DF04 1 1.5A SMD bridge diode (Fairchild Product)

7 D102, RS1M 1 1000V/1A Ultra fast recovery diode

(Fairchild Product)

8 D103 RS1G 1 400V/1A fast recovery diode

(Fairchild Product)

9 D201, D204 EGP30D 2 200V/3A Ultra fast recovery diode

(Fairchild Product)

10 D202, D203, D205 LL4148 3 General purpose diode (Fairchild Product)

11 R101,R102,R103 120KΩ 3 SMD Resistor1206

12 R104 120kΩ 1 SMD Resistor1206

13 R105 10KΩ 1 SMD Resistor1206

14 R106 20KΩ 1 SMD Resistor1206

15 R107 9.1kΩ 1 SMD Resistor1206

16 R108 47Ω 1 SMD Resistor 1206

17 R109 10Ω 1 SMD Resistor 1206

18 R110 220KΩ 1 2W

19 R111 30KΩ 1 SMD Resistor 1206

20 R112,R113 1Ω 2 SMD Resistor 1206

21 R201,R202,R203 1Ω 3 SMD Resistor 1206

22 R204 2.2Ω 1 SMD Resistor 0806

23 R205 4.3KΩ 1 SMD Resistor 0806











Item Number Part Reference Value Quantity Description (Manufacturer)

33 C101 100nF/250V 1 X – Capacitor

34 C102 47nF/250V 1 X – Capacitor

35 C103 100nF/630V 1 Film Capacitor

36 C104 47uF/35V 1 Electrolytic capacitor

37 C105 2.2nF/1kV 1 Y-Capacitor

38 C106 2.2uF 1 SMD Capacitor 0805

39 C107 30pF 1 SMD Capacitor 0805

40 C108 100nF 1 SMD Capacitor 0805

41 C201,C202 470uF/35V 2 Electrolytic capacitor

42 C203 1uF 1 SMD Capacitor 0805

43 C204 470nF 1 SMD Capacitor 0805

44 C205 10uF/35V 1 Electrolytic capacitor

45 LF101,LF102 80mH 2 Line filter

46 L101 27uH 1 Line filter

47 L102 6.8uH 1 Line filter

48 L201 5uH 1 Output Inductor

49 F101 1A/250V 1 Fuse

50 T1 EE2525S 1 1mH



2.5. Connections Transformer and Winding Specifications

Primary

3

1/2Np

2

Ns

Naux

2

1

3

5

7

9

Secondary

Tape 3T

0.33φ * 140T

90.33φ * 1

10T

0.33φ * 217T4

1/2Np

0.33φ * 140T

Tape 2T

Tape 3T

Tape 3T

54

Ns

Naux

1/2Np

7

3mm 3mm

1/2Np2

1

6mm 6mm

Figure 6. Transformer specifications & construction. [EE2525]

Table 2. Winding specifications.

No Winding Pin(S → F) Wire Turns Winding Method

1 1/2Np 3 → 2 0.33φ×1 40Ts Solenoid winding

2 Insulation : Polyester Tape t = 0.025mm, 1Layers

3 Ns 9 → 7 0.33φ×2 17Ts Solenoid winding


5 1/2Np 2→ 1 0.33φ×1 40 Ts Solenoid winding


7 Naux 4 →5 0.33φ×1 10 Ts Center Solenoid

winding


Table 3. Electrical Characteristics.

Pin Spec. Remark

Inductance 3– 1 1mH ±7% 1kHz, 1V

Leakage 3- 1 10 uH Max Short all output pins



3. Test Condition & test equipment

Table 4. test condition & test equipment

Ambient Temperature TA = 25°C, Open flame

Test Equipment

AC Source : PCR500L by Kikusui

Electronic Load : PLZ334WH by Kikusui

Power Meter : 2574R series by Xitron

Oscilloscope : DPO7104 by Tektronix

EMI Test Receiver: ESCS30 by ROHDE & SCHWARZ

Two-Line V-Network: ENV216 by ROHDE & SCHWARZ

Thermometer : CAM SC640 by FLIR SYSTEMS

LED: EHP-AX08EL/GT01H-P03 (3W) by Everlight

Test condition All of the results in this test report are tested by using the electronic load. If there isn’t any kind of notation.



3.1. Electrical Performances

The figure 7 shows we can get at least 74% system efficiency with universal input condition at

rated output LED load.

Figure 7. System Efficiency

Input Voltage [Vac] 90V 115V 230V 265V

Input Power [W] 21.67 19.07 18.33 18.85

Output Power [W] 16.05 16.05 16.05 16.05

Efficiency [%] 74 84 88 87



The figure 8 shows that we can always get over 92% PF results with universal input condition as

rated output LED load.

Figure 8. Power Factor

Input Voltage [Vac] 90V 115V 230V 265V

PF 0.98 0.98 0.95 0.93

ATHD[%] 14.72 13.5 20.5 21.4



The figure 9 and Table 5 and 6 show the typical CC/CV performance on board. As you can see, we

can always see very stable CC performance in wide input range.

Figure 9. CC/CV Performance

Table 5. Output Voltage Regulation Performance in CV region

CV

Input Voltage 90V 115V 230V 265V

Max. output 23.60 23.60 23.60 23.60

Min. output 23.53 23.53 23.53 23.53

Diff. 0.07 0.07 0.07 0.07

Avg 23.53 23.53 23.53 23.53

Deviation[%] 0.31 0.30 0.31 0.30

Table 6. Output Current Regulation Performance in CC region

CC

Input Voltage 90V 115V 230V 265V

Max. output 0.70 0.70 0.70 0.70

Min. output 0.69 0.69 0.69 0.69

Diff 0.01 0.01 0.01 0.01

Avg 0.70 0.70 0.70 0.70

Deviation[%] 1.72 1.72 1.72 1.72



The figure 10 shows the test results of FL6961 evalutaiton board. All of the results can meet the

international regulation at rated LED load condition.

a) THD Performance Results at 90V

b) THD Performance Results at 115V



c) THD Performance Results at 230V

d) THD Performance Results at 265V

Figure 10. THD Performance Results



3.2. Temperature Checking Results on Board

The figure 11 shows the temperature checking results on board in min. and max. input voltage

condition at rated LED load condition.

2nd

Diode

(52.8C)

EMI filter(79.2C)

MOSFET

OPamp

EMI filter(87.4C)

a) Top side test results at 90Vac input condition

Bridge Diode(62.9C)

OP Amp(58.1C)

b) Back side test results at 90Vac input condition



2nd

Diode(54C)

EMI filter(53.9C)

MOSFET

Sensing resistor

(backside :56.8C)

c) Top side test results at 265Vac input condition

Bridge Diode(50.6C)

OP Amp(58.6C)

d) Bottom side test results at 265Vac input condition

Figure 11. Thermal Performance Results



3.3. Operation Waveforms

The figure 12 shows the typical start-up performance on board. We can get a little bit

long start-up time to release UVLO function on IC at 90V condition rather than 265V

condition and this time normally depends on starting resistor and capacitor on board.

CH1 : VCC [10V/div]

CH2 : VDS [200V/div]

CH3 : VOUT[20V/div]

CH4 : IDS [0.5A/div]

time : [0.5s/div]

Turn on time @ 90VAC : 3.28s

CH1 : VCC [10V/div]


CH3 : VOUT[20V/div]


time : [0.5s/div]

Start up time @ 115VAC : 2.32s



CH1 : VCC [10V/div]


CH3 : VOUT[20V/div]


time : [0.5s/div]

Turn on time @ 230VAC : 0.985s

CH1 : VCC [10V/div]


CH3 : VOUT[20V/div]


time : [0.5s/div]

Start up time @ 265VAC : 0.85s

Figure 12. Start-up Characteristics

Start-up time 85Vac 115Vac 230Vac 265Vac

Time [s] 3.28 2.32 0.985 0.85



The figure 13 shows the normal operation waveform on board at different input voltage

condition. The output voltage always keeps wanted output level with 120Hz ripple voltage.


CH3 : VOUT[20V/div]


time: [5ms/div]

Normal operation @ 90Vac


CH3 : VOUT[20V/div]


time : [5ms/div]





CH3 : VOUT[20V/div]

CH4 : IDS

[0.8A/div]

time: [5ms/div]



CH3 : VOUT[20V/div]

CH4 : IDS

[0.8A/div]

time : [5ms/div]


Figure 13. Normal Operation



The figure 14 shows the input current waveforms on board at different input voltage

condition.

CH3 : VAC[200V/div]

CH4 : IAC

[0.6A/div]

time : [10ms/div]


CH3 : VAC[200V/div]

CH4 : IAC

[0.4A/div]

time : [10ms/div]




CH3 : VAC[400V/div]

CH4 : IAC

[0.2A/div]

time : [10ms/div]


CH3 : VAC[400V/div]

CH4 : IAC

[0.2A/div]

time : [10ms/div])


Figure 14. Normal Operation



3.4. Protection & voltage stress

The figure 15 shows the typical output waveforms at short load condition. The IC repeats

ON and OFF function at this mode..


CH2 : VCC[10V/div]


time : [500ms/div]

Output short @ 90Vac


CH2 : VCC[10V/div]


time : [500ms/div]





CH2 : VCC[10V/div]


time : [500ms/div]



CH2 : VCC[10V/div]


time : [500ms/div]


Figure 15. Output Short Protection



The figure 16 shows the voltage stress on MOSFET at start-up time with rated load condition.

Test condition MOSFET Voltage Stress at Start-up Period

Full load 90Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

VDS,Max : 304.76V

Full load 115Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

VDS,Max : 406.36V



Test condition MOSFET Voltage Stress at Start-up Period

Full load 230Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

VDS,Max : 638.1V

Full load 115Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

VDS,Max : 676.2V

Figure 16. MOSFET Voltage Stress



The figure 17shows the current stress on MOSFET at start-up time with rated load condition.

Test condition MOSFET Current Stress at Start-up Period

Full load 90Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

IDS,Max : 1.337A

Full load 115Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

IDS,Max : 1.654A



Test condition MOSFET Current Stress at Start-up Period

Full load 230Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

IDS,Max : 1.81A

Full load 115Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

IDS,Max : 1.81A

Figure 17. MOSFET Current Stress



The figure 18 shows the voltage stress on diode at start-up time with rated load condition and

summarized all things at table 5.

Test condition Diode Stress at Start-up Period

Full load 90Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

VDiode,Max : 61.05V

Full load 115Vac


CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

VDiode,,Max : 76.13V



Test condition Diode Stress at Start-up Period

Full load 230Vac

CH2 : VDS

[300V/div]

CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

VDiode,Max : 113.43V

Full load 265Vac

CH2 : VDS

[300V/div]

CH3 : VAK [50V/div]

CH4 : IDS [1A/div]

Time [500ms/div]

VDiode,Max : 126.92V

Figure 18. DIODE Voltage Stress



Table 7. test condition & test equipment

90Vac 115Vac 230Vac 265Vac

VDS,max [V] 304.76 406.36 638.1 676.2

IDS,max [A] 1.337 1.654 1.81 1.81

VAK,max [V] 61.05 76.13 113.43 126.92



3.5. EMI : Conducted Emission

The all measurement was conducted in observance of CISPR22 criteria and this regulation

is tighter than CISPR15 regulation for lighting application. So, we can think the FL6961

board also can meet lighting application regulation.

Conducted Emission-Line @ 220Vac, Full load (24V/700mA;6 Series LEDs)

Conducted Emission-Neutral @ 220Vac, Full load (24V/700mA;6 Series LEDs)


© 2009 Fairchild Semiconductor Corporation 36 FEBxxx_OPNxxx • Rev. 0.0.1

WARNING AND DISCLAIMER

Replace components on the Evaluation Board only with those parts shown on the parts list (or Bill of Materials) in the Users’ Guide. Contact an authorized Fairchild representative with any questions.

The Evaluation board (or kit) is for demonstration purposes only and neither the Board nor this User’s Guide constitute a sales contract or create any kind of warranty, whether express or implied, as to the applications or products involved. Fairchild warrantees that its products meet Fairchild’s published specifications, but does not guarantee that its products work in any specific application. Fairchild reserves the right to make changes without notice to any products described herein to improve reliability, function, or design. Either the applicable sales contract signed by Fairchild and Buyer or, if no contract exists, Fairchild’s standard Terms and Conditions on the back of Fairchild invoices, govern the terms of sale of the products described herein.

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION.

As used herein:

1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.

2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

ANTI-COUNTERFEITING POLICY

Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support.

Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed applications, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.

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FICHA TECNICA DE MONTAGEM E TESTEaddtechcomandos.com.br/interno/FMT/FMT7583R3.pdf · 14 Capacitor SMD 0805 100pf ( XR7/NP0 ) 7345 02 C1,C8 15 Capacitor SMD 0805 10nf ( XR7/NP0 ) 7346

How to assembly ArduSHIELD - Awesome PCB€¦ · SMD LED 0805 Solder SMD componetnts in following sequence 1. LD2 WS2812B RGB LED PLCC4 Make sure that LED is placed regarding polarization

Documents

FEB-L009 User Guide FL6961 Evaluation Board...37 C105 2.2nF/1kV 1 Y-Capacitor 38 C106 2.2uF 1 SMD Capacitor 0805 39 C107 30pF 1 SMD Capacitor 0805 40 C108 100nF 1 SMD Capacitor 0805

Text of FEB-L009 User Guide FL6961 Evaluation Board...37 C105 2.2nF/1kV 1 Y-Capacitor 38 C106 2.2uF 1 SMD...