ML4803 View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

ML4803

8-Pin PFC and PWM Controller Combo

Fairchild Semiconductor 

ML4803

PIN CONFIGURATION

PFC OUT

GND

ISENSE

VEAO

ML4803

8-Pin PDIP (P08)

8-Pin SOIC (S08)

1

8

2

7

3

6

4

5

TOP VIEW

PWM OUT

VCC

ILIMIT

VDC

PIN DESCRIPTION

PIN NAME

FUNCTION

1 PFC OUT PFC driver output

2 GND

Ground

3 ISENSE

Current sense input to the PFC current

limit comparator

4 VEAO

PFC one-pin error amplifier input

PIN NAME

FUNCTION

5 VDC

6 ILIMIT

7 VCC

PWM voltage feedback input

PWM current limit comparator input

Positive supply (may require an

external shunt regulator)

8 PWM OUT PWM driver output

2

REV. 1.1 1/24/2001

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