Datasheet FL6961, FL6300A Datasheet (Fairchild)

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Application

Fairchild Device

Input Voltage

Range

Rated Output

Power

Output Voltage (Rated Current)

LED Illumination

FL6961, FL6300A

90VAC - 277VAC

70W

24V (2.9A)

Fairchild Reference Design

The following Reference Design supports the demonstration kit for the FL6961 and FL6300A. It should be used in conjunction with the FL6961 and FL6300A

datasheet as well as Fairchild’s application notes and technical support team. Please visit Fairchild’s website at www.fairchildsemi.com

Key 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

Key Features of FL6300A

 Internal high-voltage start-up  Quasi-resonant operation  Cycle-by-cycle current limiting  Peak current mode control  Leading-edge blanking  Internal minimum t

OFF

 Internal 2ms soft-start  Over-power compensation  Gate output maximum voltage  Auto-recovery short-circuit protection (FB pin)  Auto-recovery open-loop protection (FB pin)  VDD pin & output voltage(DET pin) latch OVP

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R131

433/3216

D205

LL4148

C210

105/2012

L201

10uH

C206

33uF/50V

Q201

MMBT2222A

ZD201

15B

C207

104/2012

R205

392/2012

C202

1000uF/35V

R202

152/2012

R118

100/3216

C203

1000uF/35V

R122

0R2 2W

Q102

FQPF8N80

C112

200/2012

R119

4R7/3216

D105

LL4148

R120

151/3216

R130

103/3216

C110

47uF/450V

R124

203/3216

R123

224/3216

R117

150K/2W

D108

RS1M

C117

200/2012

R111

0R2 2W

C204

1000uF/35V

C205

1000uF/35V

R105

433/3216

R106

433/3216

R107

433/3216

R213

153/3216

R129

103/3216

C103

472(Y)

C104

472(Y)

U201

KA431S

2

3

1

R214

153/3216

R101

473/3216

T2

EER3124 (V10P)

4

3

1

5

6

910

7

R102

473/3216

R103

473/3216

R207

473/2012C101 684/275V

C106

33uF/50V

C201

1000uF/35V

C107

104/2012

D103

EGP30J

F101

220V/2A

D101

KBL06

D203

LL4148

C211

222(Y)

R128

473/3216

U102

FL6300

VDD

6

DET

1

FB

2

CS

3

HV

8

GATE

5

GND

4

NC

7

L101

EI2820 (V10P)

610

15

D104

RS1M

R212

392/2012

R210

183/2012

R211

133/2012

R204

753/2012

R208

302/2012

N L

C102 334/275V

C111

222 1kV

R116

150K/2W

R203

513/2012

R112

394/3216

R104

473/3216

R113

394/3216

R114

394/3216

U202 LM2904

IN2(-)

6

IN(+)

3

GND4IN2(+)

5

IN(-)

2

OUT1

1

Vcc

8

OUT2

7

R115

682/3216

U101

FL6961

COMP

2

INV

1

MOT

3

CS

4

Vcc

8

OUT

7

GND

6

ZCD

5

C105

224/275V

U203

FOD817

12

34

D204

LL4148

24V/3A

GND

C208

474/2012

R209

473/2012

D201

FFPF20U P30DN

FG

LF101

45mH

1 3

2 4

C209

474/2012

D106

RS1M

R201

0.1/5W

C108

105/2102

D202

FFPF20U P30DN

C116

104/2012

ZD103

24B 1W

LF102

45mH

1 3

2 4

D107

RS1M

R125

430/3216

R126

430/3216

R206

133/2012

R108

203/3216

R127

203/3216

C113

104/2012

t

RT1

5D-9

C114

33uF/50V

RV1 10D471

t

RT2

5D-9

C212

102/3216

C109

105/2102

Q101

FCPF16N 60

R216

163/2012

C213

102/3216

R109

100/3216

R110

4R7/3216

D102

LL4148

1. Schematics

Figure 1. Schematic

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Primary

2

1/2Np

2

Naux

2

3

1

5

6

Secondary

0.45φ * 1

20T

6

0.40φ * 1

6T

0.65φ * 2

8T

4

1/2Np

0.45φ * 1

20T

Tape 3T

4

5

Ns1

Naux

1/2Np

9

3mm

3

1

7

910

10

7

1/2Np

Ns1

No

Winding

Pin(SF)

Wire

Turns

Winding Method

1

1/2Np

3 → 2

0.12φ×25

20 Ts

Solenoid winding

Insulation : Polyester Tape t = 0.025mm, 3Layers

2

Ns1

6 → 9

0.1φ×60

8 Ts

Solenoid winding Insulation : Polyester Tape t = 0.025mm, 1Layers

3

Ns2

7 → 10

0.1φ×60

8 Ts

Solenoid winding

Insulation : Polyester Tape t = 0.025mm, 3Layers

4

1/2Np

2→ 1

0.12φ×25

20 Ts

Solenoid winding Insulation : Polyester Tape t = 0.025mm, 2Layers

6

Naux

5 → 4

0.1φ×12

6 Ts

Solenoid winding Insulation : Polyester Tape t = 0.025mm, 3Layers

Spec.

Remark

Inductance

1– 3

500 uH ±7%

1kHz, 1V

Leakage

1– 3

14 uH Max

Short all output pins

2. Transformer and Inductor specification

 Transformer

Core : EER3124 Bobbin : 10pin

Figure 2. Transformer specifications & construction. [EER3124]

Table 1. Winding specifications.

Table 2. Electrical Characteristics.

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Bottom

1

N1

Ns

1

10

7

5

Top

Tape 3T

0.08φ * 20

28T

0.25φ

5T

Tape 3T

5

Naux

N1

10

7

No

Winding

Pin(SF)

Wire

Turns

Winding Method

1

N1

1 → 10

0.12φ×25

44 Ts

Solenoid winding

Insulation : Polyester Tape t = 0.025mm, 3Layers

2

Ns1

7 → 5

0.1φ×12

6 Ts

Space winding Insulation : Polyester Tape t = 0.025mm, 3Layers

Spec.

Remark

Inductance

1 – 10

450uH

1kHz, 1V

Leakage

1 – 10

10 uH Max

Short all output pins

 PFC Inductor

Core : EI2820 Bobbin : 10pin

Figure 3. Transformer specifications & construction. [EER3124]

Table 3. Winding specifications.

Table 4. Electrical Characteristics.

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2.1. Performance

Figure 4. System Efficiency

Figure 5. Power Factor Performance

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Figure 6. CC/CV Curve

3. Related Resources

Datasheet link FL6961

Datasheet link FL6300A

Application Note link FL6961

Application Note link FL6300A

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