FAN7529_07 datasheet(5/20 Pages) FAIRCHILD

Part #	FAN7529

Description	Critical Conduction Mode PFC Controller

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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FAN7529 Rev. 1.0.2

5

Electrical Characteristics

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

Note:

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

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

UNDER-VOLTAGE LOCKOUT SECTION

Vth(start)

Start Threshold Voltage

VCC increasing

11

12

13

V

Vth(stop)

Stop Threshold Voltage

VCC decreasing

7.5

8.5

9.5

V

HY(uvlo)

UVLO Hysteresis

3.0

3.5

4.0

V

VZ

Zener Voltage

ICC = 20mA

20

22

24

V

SUPPLY CURRENT SECTION

Ist

Start-up Supply Current

VCC = Vth(start) - 0.2V

40

70

µA

ICC

Operating Supply Current

Output no switching

1.5

3.0

mA

Idcc

Dynamic Operating Supply Current

50kHz, Cl=1nF

2.5

4.0

mA

ICC(dis)

Operating Current at Disable

Vinv = 0V

20

65

95

µA

ERROR AMPLIFIER SECTION

Vref1

Voltage Feedback Input Threshold1

TA = 25°C

2.465

2.500

2.535

V

ΔV

ref1

Line Regulation

VCC = 14V ~ 20V

0.1

10.0

mV

ΔV

ref2

Temperature Stability of Vref1

(2)

20

mV

Ib(ea)

Input Bias Current

Vinv = 1V ~ 4V

-0.5

0.5

µA

Isource

Output Source Current

Vinv = Vref1 - 0.1V

-12

µA

Isink

Output Sink Current

Vinv = Vref1 + 0.1V

12

µA

Veao(H)

Output Upper Clamp Voltage

Vinv = Vref1 - 0.1V

5.4

6.0

6.6

V

Veao(Z)

Zero Duty Cycle Output Voltage

0.9

1.0

1.1

V

gm

Transconductance(2)

90

115

140

µmho

MAXIMUM ON-TIME SECTION

Vmot

Maximum On-Time Voltage

Rmot = 40.5kΩ

2.784

2.900

3.016

V

Ton(max)

Maximum On-Time Programming

Rmot = 40.5kΩ, TA = 25°C19

24

29

µs

CURRENT SENSE SECTION

VCS(limit)

Current Sense Input Threshold

Voltage Limit

0.7

0.8

0.9

V

Ib(cs)

Input Bias Current

VCS = 0V ~ 1V

-1.0

-0.1

1.0

µA

td(cs)

Current Sense Delay to Output(2)

dV/dt = 1V/100ns,

from 0V to 5V

350

500

ns

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