ML4841CP(V2) Просмотр технического описания (PDF) - Fairchild Semiconductor

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Компоненты Описание

производитель

ML4841CP
(Rev.:V2)

Variable Feedforward PFC/PWM Controller Combo

Fairchild Semiconductor 

ML4841

Pin Configuration

ML4841

16-Pin PDIP (P16)

IEAO 1

16 VEAO

IAC 2

ISENSE 3

VRMS 4

SS 5

15 VFB

14 VREF

13 VCC

12 PFC OUT

VDC 6

11 PWM OUT

RT/CT 7

10 GND

RAMP 1 8

9 RAMP 2

TOP VIEW

PRODUCT SPECIFICATION

Pin Description

PIN

NAME

1

IEAO

2

IAC

3

ISENSE

4

VRMS

5

SS

6

VDC

7

RTCT

8

RAMP 1

9

RAMP 2

10

GND

11

PWM OUT

12

PFC OUT

13

VCC

14

VREF

15

VFB

16

VEAO

FUNCTION

PFC transconductance current error amplifier output

PFC gain control reference input

Current sense input to the PFC current limit comparator

Input for PFC RMS line voltage compensation

Connection point for the PWM soft start capacitor

PWM voltage feedback input

Connection for oscillator frequency setting components

PFC ramp input

PWM ramp current sense input

Ground

PWM driver output

PFC driver output

Positive supply (connected to an internal shunt regulator).

Buffered output for the internal 7.5V reference

PFC transconductance voltage error amplifier input

PFC transconductance voltage error amplifier output

2

REV. 1.0.3 6/13/01

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