FAN7527BM datasheet(5/12 Pages) FAIRCHILD

Part #	FAN7527BM

Description	Power Factor Correction Controller

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

Direct Link	http://www.fairchildsemi.com

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FAN7527B

5

Electrical Characteristics

VCC= 14V, -25

°C ≤ Ta ≤ 125°C, unless otherwise stated.

Characteristics

Symbol

Test Condition

Min.

Typ.

Max.

Unit

< UNDER VOLTAGE LOCKOUT SECTION>

Start threshold voltage

Vth(st)

Vcc Increasing

10.5

11.5

12.5

V

UVLO hysteresis

HY(st)

-2

3

4

V

< SUPPLY CURRENT SECTION >

Start-up supply current

Ist

Vcc = Vth(st) -0.2V

10

60

100

uA

Operating supply current

Icc

Output not switching

-

3

6

mA

Operating current at OVP

Icc(ovp)

Vinv = 3V

-

1.7

4

mA

Dynamic operating supply current

Idcc

50kHz, CI = 1nF

-

4

8

mA

< ERROR AMPLIFIER SECTION >

Voltage feedback input threshold

Vref

Iref = 0mA, Ta = 25

°C

2.465

2.5

2.535

V

-25

≤ Ta ≤ 125°C

2.44

2.5

2.56

V

Line regulation

∆Vref1

14V

≤ Vcc ≤ 25V

-

0.1

10

mV

Temperature stability of Vref (Note1)

∆Vref3

-25

≤ Ta ≤ 125°C-

20

-

mV

Input bias current

Ib(ea)

-

-0.5

-

0.5

uA

Output source current

Isource

Vm2 = 4V

-2

-4

-

mA

Output sink current

Isink

Vm2 = 4V

2

4

-

mA

Output upper clamp voltage (Note2)

Veao(H)

Isource = 0.1mA

-

6

-

V

Output lower clamp voltage (Note3)

Veao(L)

Isink = 0.1mA

-

2.25

-

V

Large signal open loop gain (Note4)

Gv

-60

80

-

dB

Power supply rejection ratio (Note5)

PSRR

14V

≤ Vcc ≤ 25V

60

80

-

dB

Unity gain bandwidth (Note6)

GBW

-

1

-

MHz

Slew rate (Note7)

SR

-

0.6

-

V/us

< MULTIPLIER SECTION>

Input bias current (pin3)

Ib(m)

-

-0.5

-

0.5

uA

M1 input voltage range (pin3)

∆Vm1-

0

-

3.8

V

M2 input voltage range (pin2)

∆Vm2

-

Vref

-

Vref+2.5

V

Multiplier gain (Note8)

K

Vm1 = 1V, Vm2 = 3.5V

0.36

0.44

0.52

1/V

Maximum multiplier output voltage

Vomax(m)

Vinv =0V, Vm1 = 4V

1.65

1.8

1.95

V

Temperature stability of K (Note9)

∆K/∆T

-25

≤ Ta ≤ 125°C-

-0.2

-

%/

°C

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