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FAN7529

Critical Conduction Mode PFC Controller

FAN7529 Critical Conduction Mode PFC Controller

April 2007

Features

 Low Total Harmonic Distortion (THD)  Precise Adjustable Output Over-Voltage Protection  Open-Feedback Protection and Disable Function  Zero Current Detector  150µs Internal Start-up Timer  MOSFET Over-Current Protection  Under-Voltage Lockout with 3.5V Hysteresis  Low Start-up (40µA) and Operating Current (1.5mA)  Totem Pole Output with High State Clamp  +500/-800mA Peak Gate Drive Current  8-Pin DIP or 8-Pin SOP

Applications

 Adapter  Ballast  LCD TV, CRT TV  SMPS

Related Application Notes

 AN-6026 - Design of Power Factor Correction Circuit

Using FAN7529

Description

The FAN7529 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 MO SFET turn-off signal. Because the voltage-mode CRM PFC controller does not need rectified AC line voltage inform ation, it saves the power loss of the input voltage sensing netwo rk necessary for the current-mode CRM PFC controller.

FAN7529 provides many protection functions, such as over-voltage protection, open-feedback protection, overcurrent protection, and under-voltage lockout protection. The FAN7529 can be disabled if the INV pin voltage is lower than 0.45V and the operating current decreases to 65µA. Using a new variable on-time control method, THD is lower than the conventional CRM boost PFC ICs.

Ordering Information

Operating T emp.

Part Number

FAN7529N -40°C to +125°C Yes 8-DIP Rail FAN7529 FAN7529M -40°C to +125°C Yes 8-SOP Rail FAN7529

FAN7529MX -40°C to +125°C Yes 8-SOP Tape & Reel FAN7529

Range Pb-Free Package Packing Method

Marking

Code

Typical Application Diagrams

AC

IN

Figure 1. Typical Boost PFC Application

FAN7529 Critical Conduction Mode PFC Controller

LD

N

V

AUX

R2

V

CC

AUX

R

ZCD

FAN7529

INV

MOT

CS

COMP

R1

GND

V

O

C

O

FAN7529 Rev. 00

Internal Block Diagram

8

V

CC

8.5V

12V

5

ZCD

CS

MOT

4

3

2.9V

6.7V

40k

8pF

Ramp Signal

Saw Tooth

Generator

1.4V

0.8V

1.5V

Current Protection

Comparator

1V Offset

UVLO

Disable

Zero Current

Detector

2.5V Ref

Internal

Bias

Timer

S

R

Q

Error

Amplifier

1V~5V Range

V

ref1

Disable

Gm

OVP

V

ref1

V

CC

Drive

Output

2.675V

2.5V

0.45V 0.35V

7

OUT

1

INV

6

GND

2

COMP

FAN7529 Rev. 00

Figure 2. Functional Block Diagram of FAN7529

Pin Assignments

FAN7529 Critical Conduction Mode PFC Controller

V

CC

OUT GND ZCD

6 58 7

YWW

FAN7529

1 2 3 4

COMP CSMOTINV

Figure 3. Pin Configuration (Top View)

Pin Definitions

Pin # Name Description

1INV

2COMP

3MOT

4CS

5ZCD

6GND

7OUT

8V

CC

This pin is the inverting input of the error amplifier. The output voltage of the boost PFC converter should be resistively divided to 2.5V.

This pin is the output of the transconductance error amplifier. Components for output voltage compensation should be connected between this pin and GND.

This pin is used to set the slope of the internal ramp. The voltage of this pin is maintained at 2.9V . If a resistor is connected between this pin and GND, current flows out of the pin and the slope of the internal ramp is proportional to this current.

This pin is the input of the over-current protection comparator. The MOSFET current is sensed using a sensing resistor and the resulting voltage is appl ied to this pin. An internal RC filter is included to filter switching noise.

This pin is the input of the zero current detection block. If the voltage of this pin goes higher than 1.5V, then goes lower than 1.4V, the MOSFET is turned on.

This pin is used for the ground potential of all the pins. For proper operation, the signal ground and the power ground should be separated.

This pin is the gate drive output. The peak sourcing and sinking current levels are +500mA and -800mA respectively. For proper operation, the stray inductance in the gate driving path must be minimized.

This pin is the IC supply pin. IC current and MOSFET drive current are supplied using this pin.

FAN7529 Rev. 00

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating cond itions may affect device reliability. The absolute maximum ratings are stress ratings only. T

Symbol Parameter Value Unit

V

CC

, I

I

OH

I

clamp

I

det

V

IN

T

J

T

A

T

STG

V

ESD_HBM

V

ESD_MM

V

ESD_CDM

OL

Supply Voltage V Peak Drive Output Current +500/-800 mA Driver Output Clamping Diodes VO>VCC or VO<-0.3V ±10 mA Detector Clamping Diodes ±10 mA Error Amplifier, MOT, CS Input Voltages -0.3 to 6 V Operating Junction Temperature 150 °C Operating Temperature Range -40 to 125 °C Storage Temperature Range -65 to 150 °C ESD Capability, Human Body Model 2.0 kV ESD Capability, Machine Model 300 V ESD Capability, Charged Device Model 500 V

= 25°C unless otherwise specified.

A

Z

V

FAN7529 Critical Conduction Mode PFC Controller

Thermal Impedance

(1)

Symbol Parameter Value Unit

θ

JΑ

Thermal Resistance, Junction-to-Ambient

Note:

1. Regarding the test environment and PCB type, please refer to JESD51-2 and JESD51-10.

8-DIP 110 °C/W

8-SOP 150 °C/W

FAN7529 Critical Conduction Mode PFC Controller

Electrical Characteristics

VCC = 14V and TA = -40°C~125°C unless otherwise specified.

Symbol Parameter Condition Min. Typ. Max. Unit

UNDER-VOLTAGE LOCKOUT SECTION

V

th(start)

V

th(stop)

HY

(uvlo)

V

SUPPLY CURRENT SECTION

I

CC

I

dcc

I

CC(dis)

ERROR AMPLIFIER SECTION

V

ref1

ΔV ΔV

I

b(ea)

I

source

I

sink

V

eao(H)

V

eao(Z)

g

MAXIMUM ON-TIME SECTION

V

mot

T

on(max)

CURRENT SENSE SECTION

V

CS(limit)

I

b(cs)

t

d(cs)

Start Threshold Voltage VCC increasing 1 1 12 13 V Stop Threshold V oltage VCC decreasing 7.5 8.5 9.5 V UVLO Hysteresis 3.0 3.5 4.0 V Zener Voltage ICC = 20mA 20 22 24 V

Z

Start-up Supply Current VCC = V

st

- 0.2V 40 70 µA

th(start)

Operating Supply Current Output no switching 1.5 3.0 mA Dynamic Operating Supply Current 50kHz, Cl=1nF 2.5 4.0 mA Operating Current at Disable V

= 0V 20 65 95 µA

inv

Voltage Feedback Input Threshold1 TA = 25°C 2.465 2.500 2.535 V Line Regulation VCC = 14V ~ 20V 0.1 10.0 mV

ref1

Temperature Stability of V

ref2

Input Bias Current V Output Source Current V Output Sink Current V Output Upper Clamp Voltage V

ref1

(2)

20 mV

= 1V ~ 4V -0.5 0.5 µA

inv

= V

inv inv inv

- 0.1V -12 µA

ref1

= V

+ 0.1V 12 µA

ref1

= V

- 0.1V 5.4 6.0 6.6 V

ref1

Zero Duty Cycle Output Voltage 0.9 1.0 1.1 V Transconductance

m

Maximum On-Time Voltage R Maximum On-Time Programming R

Current Sense Input Threshold Voltage Limit

(2)

90 115 140 µmho

= 40.5kΩ 2.784 2.900 3.016 V

mot

= 40.5kΩ, TA = 25°C192429µs

mot

0.7 0.8 0.9 V Input Bias Current VCS = 0V ~ 1V -1.0 -0.1 1.0 µA Current Sense Delay to Output

(2)

dV/dt = 1V/100ns, from 0V to 5V

350 500 ns

Note:

2. These parameters, although guaranteed by design, are not tested in production.

FAN7529 Critical Conduction Mode PFC Controller

Electrical Characteristics (Continued)

VCC = 14V and TA = -40°C~125°C unless otherwise specified.

Symbol Parameter Condition Min. Typ. Max. Unit

ZERO CURRENT DETECT SECTION

(3)

1.35 1.50 1.65 V

0.05 0.10 0.15 V

= 3mA 6.0 6.7 7.4 V

det

= -3mA 0 0.65 1.00 V

det

= 1V ~ 5V -1.0 -0.1 1.0 µA

ZCD

TA = 25°C-10mA TA = 25°C10mA dV/dt = -1V/100ns,

from 5V to 0V

100 200 ns

Cl = 1nF 50 100 ns Cl = 1nF 50 100 ns

V

th(ZCD)

HY

(ZCD)

V

clamp(H)

V

clamp(L)

I

b(ZCD)

I

source(zcd)

I

sink(zcd)

t

dead

Input Voltage Threshold Detect Hysteresis Input High Clamp Voltage I Input Low Clamp Voltage I Input Bias Current V Source Current Capability Sink Current Capability Maximum Delay from ZCD to Output

Turn-on

(3)

OUTPUT SECTION

V

OH

V

OL

t

V

O(max)

V

O(UVLO)

r f

Output Voltage High IO = -100mA, TA = 25°C 9.2 11.0 12.8 V Output Voltage Low IO = 200mA, TA = 25°C1.02.5V Rising Time Falling Time

(3)

Maximum Output Voltage VCC = 20V, IO = 100μA 11.5 13.0 14.5 V Output Voltage with UVLO Activated VCC = 5V, IO = 100μA1V

RESTART TIMER SECTION

t

d(rst)

Restart Timer Delay 50 150 300 µs

OVER-VOLTAGE PROTECTION SECTION

OVP Threshold Voltage TA = 25°C 2.620 2.675 2.730 V OVP Hysteresis TA = 25°C 0.120 0.175 0.230 V

HY

V

ovp

(ovp)

ENABLE SECTION

V HY

th(en)

(en)

Enable Threshold Voltage 0.40 0.45 0.50 V Enable Hysteresis 0.05 0.10 0.15 V

Note:

3. These parameters, although guaranteed by design, are not tested in production.

Typical Characteristics

FAN7529 Critical Conduction Mode PFC Controller

13.0

12.5

[V]

12.0

th(start)

V

11.5

11.0

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

9.5

9.0

[V]

8.5

th(stop)

V

8.0

7.5

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 4. Start Threshold Voltage vs. Temp. Figure 5. Stop Threshold Voltage vs. Temp.

[V]

HY

(UVLO)

4.00

3.75

3.50

3.25

23.0

22.5

22.0

[V]

Z

V

21.5

3.00

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

21.0

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 6. UVLO Hysteresis vs. Temp. Figure 7. Zener Voltage vs. Temp.

60

45

[μA]

st

I

30

15

-60 -40 -20 0 20 40 60 80 100 120 140 Temperature [°C]

2.4

1.6

[mA]

CC

I

0.8

0.0

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 8. Start-up Supply Current vs. Temp. Figure 9. Operating Supply Current vs. Temp.

Typical Characteristics (Continued)

FAN7529 Critical Conduction Mode PFC Controller

4

3

2

[mA]

dcc

I

1

0

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 10. Dynamic Operating Supply Current vs.

Temp.

2.52

2.50

[V]

ref1

V

2.48

90

72

54

[μA]

CC(dis)

I

36

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 11. Operating Current at Disable vs. Temp.

10.0

7.5

5.0

[mV]

ref1

ΔV

2.5

0.0

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 12. V

0.50

0.25

0.00

[μA]

b(ea)

I

-0.25

-0.50

-60 -40 -20 0 20 40 60 80 100 120 140

vs. Temp. Figure 13. ΔV

ref1

Temperature [°C]

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

vs. Temp.

ref1

-9

-12

[μA]

source

I

-15

-18

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 14. Input Bias Current vs. Temp. Figure 15. Output Source Current vs. Temp.

Typical Characteristics (Continued)

FAN7529 Critical Conduction Mode PFC Controller

18

15

12

[μA]

sink

I

9

6

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

6.6

6.3

6.0

(H) [V]

eao

V

5.7

5.4

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 16. Output Sink Current vs. Temp. Figure 17. Output Upper Clamp Voltage vs. Temp.

[V] V

1.10

1.05

1.00

eao(Z)

0.95

3.00

2.95

2.90

[V]

mot

V

2.85

0.90

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

2.80

-60 -40 -20 0 20 40 60 80 100 120 140 Temperature [°C]

Figure 18. Zero Duty Cycle Output Voltage vs. Temp. Figure 19. Maximum On-Time Voltage vs. Temp.

27

[μs]

24

on(max)

T

21

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

0.90

0.85

[V]

0.80

cs(limit)

V

0.75

0.70

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 20. Maximum On-Time vs. Temp. Figure 21. Current Sense Input Threshold Voltage vs.

Temp.

Typical Characteristics (Continued)

FAN7529 Critical Conduction Mode PFC Controller

1.0

0.5

0.0

[μA]

b(cs)

I

-0.5

-1.0

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

7.2

6.8

[V]

6.4

clamp(H)

V

6.0

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 22. Input Bias Current vs. Temp. Figure 23. Input High Clamp Voltage vs. Temp.

[V]

V

1.00

0.75

0.50

clamp(L)

0.25

1.0

0.5

0.0

[μA]

b(zcd)

I

-0.5

0.00

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

-1.0

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 24. Input Low Clamp Voltage vs. Temp. Figure 25. Input Bias Current vs. Temp.

14

[V]

13

O(max)

V

12

-60 -40 -20 0 2 0 40 60 80 100 120 140

Temperature [°C]

0.9

0.6

0.3

[V]

O(uvlo)

0.0

V

-0.3

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 26. Maximum Output Voltage vs. Temp. Figure 27. Output Voltage with UVLO Activated vs.

Temp.

Typical Characteristics (Continued)

FAN7529 Critical Conduction Mode PFC Controller

300

250

200

[μs]

150

d(rst)

t

100

50

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

2.73

2.70

[V]

2.67

ovp

V

2.64

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 28. Restart Delay Time vs. Temp. Figure 29. OVP Threshold Voltage vs. Temp.

[V]

(OVP)

HY

0.21

0.18

0.15

0.500

0.475

0.450

[V]

th(en)

V

0.425

0.12

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

0.400

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 30. OVP Hysteresis vs. Temp. Figure 31. Enable Threshold Voltage vs. Temp.

0.150

0.125

[V]

0.100

(en)

HY

0.075

0.050

-60 -40 -20 0 20 40 60 80 100 120 140

Temperature [°C]

Figure 32. Enable Hysteresis vs. Temp.

Applications Information

FAN7529 Critical Conduction Mode PFC Controller

1. Error Amplifier Block

The error amplifier block consists of a transconductance amplifier, output OVP comparator, and disable comparator. For the output voltage control, a transconductance amplifier is used instead of the conventional voltage amplifier. The transconductance amplifier (voltage controlled current source) aids the implementation of OVP and disable function. The output current of the ampl ifier changes according to the voltage difference of the inverting and non-inverting input of the amplifier. The output voltage of the amplifier is compared with the internal ramp signal to generate the switch turn-off signal. The OVP comparator shuts down the output drive block when the voltage of the INV pin is higher than 2.675V and there is 0.175V hysteresis. The disable comparator disables the operation of the FAN7529 when the voltage of the inverting input is lower than 0.45V and there is 100mV hysteresis. An external small signal MOSFET can be used to disable the IC, as shown in Figure 33. The IC operating current decreases below 65µA to reduce power consumption if the IC is disabled.

OVP

Disable

Error Amp

2

COMP

Gm

2.675V 2.5V

0.45V 0.35V

V

(2.5V)

ref1

V

out

INV

1

Disable

Signal

below 1.4V. If the voltage goes below 1.4V, the zero current detector turns on the MOSFET. The ZCD pin is protected internally by two clamps, 6.7V-high clamp and

0.65V-low clamp. The 150µs timer generates a MOSFET turn-on signal if the drive output has been low for more than 150µs from the falling edge of the drive output.

Turn-on

Signal

V

in

ZCD

5

R

ZCD

6.7V

1.4V

1.5V

Zero Current

Detector

150μs

Timer

S

Q

R

FAN7529 Rev. 00

Figure 34. Zero Current Detector Block

3. Sawtooth Generator Block

The output of the error amplifier and the output of the sawtooth generator are compared to determine the MOSFET turn-off instance. The slope of the sawtooth is determined by an external resistor connected to the MOT pin. The voltage of the MOT pin is 2.9V and the slope is proportional to the current flowing out of the MOT pin. The internal ramp signal has a 1V offset; therefore, the drive output is shut down if the voltage of the COMP pin is lower than 1V. The MOSFET on-time is maximum when the COMP pin voltage is 5V. According to the slope of the internal ramp, the maximum on-time can be programmed. The necessary maximum on-time depends on the boost inductor, lowest AC line voltage, and maximum output power. The resistor value should be designed properly.

Off Signal

Figure 33. Error Amplifier Block

FAN7529 Rev. 00

MOT

3

1V Offset

Saw Tooth

Generator

2.9V

2. Zero Current Detection Block

The zero current detector (ZCD) generates the turn-on signal of the MOSFET when the boost inductor current reaches zero using an auxiliary winding coupled wi th th e inductor. If the voltage of the ZCD pin goes higher than

1.5V, the ZCD comparator waits until the voltage goes

Figure 35. Sawtooth Generator Block

Error Amp

Output

FAN7529 Rev. 00

FAN7529 Critical Conduction Mode PFC Controller

4. Over-Current Protection Block

The MOSFET current is sensed using an external sensing resistor for the over-current protection. If the CS pin voltage is higher than 0.8V, the over-current protection comparator generates a protection signal. An internal RC filter is included to filter switching noise.

40k

4

CS

8pF

0.8V

Over Current Protection

Comparator

Figure 36. Over-Current Protection Block

OCP

Signal

FAN7529 Rev. 00

5. Switch Drive Block

The FAN7529 contains a single totem-pole output stage designed for direct drive of the power MOSFET. The drive output is capable of up to +500/-800mA peak current with a typical rise and fall time of 50ns with 1nF load. The output voltage is clamped to 13V to protect the MOSFET gate if the V

voltage is higher than 13V.

CC

6. Under-Voltage Lockout Block

If the VCC voltage reaches 12V, the IC’s internal blocks are enabled and start operation. If the VCC voltage drops below 8.5V, most of the internal blocks are di sabled to reduce the operating current. V higher than 8.5V under normal conditions.

voltage should be

CC

Typical Application Circuit

Application Output Power Input Voltage Output Voltage

Ballast 100W

Universal input

(85~265V

AC

Features

 High efficiency (>90% at 85V  Low Total Harmonic Distortion (THD) (<10% at 265V

AC

input)

input, 25W load)

AC

Key Design Notes

 R1, R2, R5, C11 should be optimized for best THD characteristic.

1. Schematic

)

400V

FAN7529 Critical Conduction Mode PFC Controller

NTC

LF1

F1

BD

C3 C4

C2

C1

V1

AC INPUT

C5

R3

C6

ZD1

R2

V

AUX

R4

C10

D1

V

OUT

CC

FAN7529

INV

COMP

1234

R8

C7

C8

R1

R5

GND

T1

C11

MOT

5678 ZCD

CS

D3

R6

PFC OUTPUT

D2

R10

Q1

C9

R9

R11

R7

FAN7529 Rev. 00

Figure 37. Schematic

2. Inductor Schematic Diagram

3. Winding Specification

4

N

Vcc

2 3

Np

5

FAN7529 Rev. 00

Figure 38. Inductor Schematic Diagram

FAN7529 Critical Conduction Mode PFC Controller

No Pin (s→f) Wire Turns Winding Method

Np 5 → 30.1

Insulation: Polyester Tape t = 0.050mm, 4 Layers

N

Vcc

2 → 40.2 Outer Insulation: Polyester Tape t = 0.050mm, 4 Layers Air Gap: 0.6mm for each leg

φ

× 30 58 Solenoid Winding

φ

× 1 8 Solenoid Winding

4. Electrical Characteristics

Pin Specification Remarks

Inductance 3 - 5 600µH ± 10% 100kHz, 1V

5. Core & Bobbin

 Core: EI 3026  Bobbin: EI3026  Ae(mm

2

): 111

6. Demo Circuit Part List

Part Value Note Part Value Note

Fuse Inductor

F1 3A/250V T1 600µH EI3026

NTC

NTC 10D-9 MOSFET

Resistor Q1 FQPF13N50C Fairchild

R1 56kΩ 1/4W R2 820kΩ 1/4W Diode R3 330kΩ 1/2W D1 1N4148 Fairchild R4 150Ω 1/2W D2 BYV26C 600V, 1A R5 20kΩ 1/4W D3 SB140 Fairchild R6 10Ω 1/4W ZD1 1N4746 18V R7 0.2Ω 1/2W R8 10kΩ 1/4W

R9 10kΩ 1/4W Bridge Diode R10 2MΩ 1/4W BD KBL06 600V/4A R11 12.6kΩ 1/4W

Line Filter

Capacitor LF1 40mH Wire 0.4mm

C1 150nF/275VAC Box Capacitor

C2 470nF/275VAC Box Capacitor IC

C3 2.2nF/3kV Ceramic Capacitor IC1 FAN7529 Fairchild

C4 2.2nF/3kV Ceramic Capacitor

C5 TNR

C6 47µF/25V Electrolytic Capacitor V1 471 470V

C7 47nF/50V Ceramic Capacitor

C8 220nF/50V

C9 100µF/450V Electrolytic Capacitor C10 12nF/100V Film Capacitor C11 56pF/50V Ceramic Capacitor

Multilayer Ceramic

Capacitor

FAN7529 Critical Conduction Mode PFC Controller

7. Layout

Power Ground

FAN7529 Critical Conduction Mode PFC Controller

Separate the power ground

and the signal ground

8. Performance Data

P

OUT

100W

75W

50W

25W

Signal Ground

Place the output voltage

sensing resistors close to IC

Figure 39. PCB Layout Considerations for FAN7529

85V

AC

PF 0.998 0.998 0.991 0.984

THD 5.1% 3.6% 5.2% 6.2%

Efficiency 90.9% 93.7% 95.6% 96%

PF 0.999 0.998 0.986 0.975

THD 4.1% 3.6% 5.0% 5.7%

Efficiency 91.6% 93.3% 94.6% 95.3%

PF 0.998 0.997 0.974 0.956

THD 4.4% 5.0% 5.7% 6.2%

Efficiency 91.3% 91.9% 92.7% 93.4%

PF 0.995 0.991 0.923 0.876

THD 7.9% 8.6% 8.3% 8.7%

Efficiency 86.4% 87.1% 87.3% 88.1%

115V

AC

230V

AC

265V

AC

Mechanical Dimensions

8-DIP

Dimensions are in millimeters (inches) unless otherwise noted..

6.40

±0.20

±0.008

0.252

0.79

0.031

()

±0.10

±0.004

±0.10

FAN7529 Critical Conduction Mode PFC Controller

±0.004

#1

#8

#4 #5

7.62

0.300

MAX

9.60

0.378

5.08

0.200

3.40

0.134

±0.20

9.20

MAX

±0.20

±0.008

0.362

0.33

0.013

MIN

0.46

3.30

0.130

2.54

±0.30

±0.012

0.018

0.100

1.524

0.060

+0.10

0.25

–0.05

+0.004

0.010

–0.002

0~15°

Figure 40. 8-Lead Dual In-Line Package (DIP)

September 1999, Rev B 8dip_dim.pdf

Mechanical Dimensions (Continued)

8-SOP

Dimensions are in millimeters (inches) unless otherwise noted.

1.55

0.061

±0.20

±0.008

MIN

0.004~0.001

0.56

0.1~0.25

0.022

()

FAN7529 Critical Conduction Mode PFC Controller

0.006

-0.002

0.50

0.020

+

0.004

±0.20

±0.008

0.15

+

-0.05

0.10

#1

#4

6.00

0.236

3.95

0.156

0.225

±0.30

±0.20

±0.008

5.72

±0.012

#8

#5

0.071

0~8°

MAX

5.13

0.202

1.80

±0.20

4.92

MAX

±0.008

0.194

MAX0.10

MAX0.004

1.27

0.050

±0.10

0.41

±0.004

0.016

September 2001, Rev B1 sop8_dim.pdf

Figure 41. 8-Lead Small Outline Package (SOP)

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FAN7529 Critical Conduction Mode PFC Controller

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