FAN9612M datasheet(7/37 Pages) FAIRCHILD

Part #	FAN9612M

Description	Interleaved Dual BCM PFC Controller

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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FAN9612 • Rev. 0.9.1E

7

PRELIMINARY

Electrical Characteristics

Unless otherwise noted, VDD = 12V, TJ = -40°C to +125°C. Currents are defined as positive into the device and

negative out of the device.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Supply

ISTART_UP

Start-up Supply Current

VDD = VON – 0.2V

80

110

µA

IDD

Operating Current

Output Not Switching

2.5

4

mA

IDD_DYM

Dynamic Operating Current

(4)

fSW = 50 kHz; CLOAD = 2 nF

3

5

mA

VON

UVLO Start Threshold Voltage

VDD Increasing

12

12.5

13

V

VOFF

UVLO Stop Threshold Voltage

VDD Decreasing

7.0

7.5

8.0

V

UVLO Hysteresis

5.0

V

Bias Regulator

(C5VB = 0.1 µF)

TA = 25°C; ILOAD = 1 mA

5.0

V

V5VB

5VB Output Voltage

Total Variation over line, load,

and temperature

4.8

5.2

V

IOUT_MAX

Maximum Output Current

5.0

mA

Error Amplifier

TA = 25°C

(±1.4%)

2.95

3.0

3.05

V

Voltage Reference

Total Variation over line, load,

and temperature

(±2.6%)

2.925

3.075

V

Line Regulation

VDD = 10 V to 18 V

0.1

10

mV

VSS

Temperature Stability

20

mV

IBIAS

Input Bias Current

VFB = 1V to 3 V;

|VSS – VFB| ≤ 0.1 V

–0.5

0.5

µA

IOUT_SRC

Output Source Current

VSS = 3 V; VFB = 3.1 V

–10

µA

IOUT_SINK

Output Sink Current

VSS = 3V; VFB = 2.9 V

10

µA

VOH

Output High Voltage

4.5

4.7

V5VB

V

VOL

Output Low Voltage

ISINK < 100µA

0.0

0.1

0.2

V

gM

Transconductance

(Note 1)

80

100

120

µmho

PWM

PWM Ramp Offset

TA = 25°C

120

195

270

mV

Minimum On-Time

VFB > VSS

0.0

µs

Maximum On-Time

VMOT

Maximum On-time Voltage

R = 125k

1.23

1.25

1.27

V

tON,MAX

Maximum On-Time

R = 125k; VVIN = 2.5V;

VCOMP > 4.5 V; TA = 25°C

4.6

µs

Restart Timer

(4) (each channel)

fSW,RT

Minimum Switching Frequency

VFB > VPWM_OFFSET

15.5

kHz

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