ML4822 Ver la hoja de datos (PDF) - Micro Linear Corporation

Número de pieza

componentes Descripción

Fabricante

ML4822

ZVS Average Current PFC Controller

Micro Linear Corporation 

ML4822

PIN CONFIGURATION

ML4822

14-Pin DIP (P14)

VEAO

IEAO

ISENSE

IAC

VRMS

RTCT

ZV SENSE

1

14

2

13

3

12

4

11

5

10

6

9

7

8

TOP VIEW

FB

REF

VCC

PFC OUT

ZVS OUT

PWR GND

GND

ML4822

16-Pin SOIC (S16W)

VEAO

IEAO

ISENSE

IAC

VRMS

RTCT

ZV SENSE

N/C

1

16

2

15

3

14

4

13

5

12

6

11

7

10

8

9

TOP VIEW

FB

REF

VCC

PFC OUT

ZVS OUT

PWR GND

GND

N/C

PIN DESCRIPTION (Pin number in parentheses is for 16-pin package)

PIN

1 (1)

2 (2)

3 (3)

4 (4)

5 (5)

6 (6)

7 (7)

NAME

FUNCTION

VEAO

Transconductance voltage error

amplifier output.

IEAO

Transconductance current error

amplifier output.

ISENSE

Current sense input to the PFC

current limit comparator.

IAC

VRMS

PFC gain modulator reference input.

Input for RMS line voltage

compensation.

RTCT

Connection for oscillator frequency

setting components.

ZV SENSE Input to the high speed zero voltage

crossing comparator.

PIN NAME

FUNCTION

8 (10) GND

Analog signal ground.

9 (11) PWR GND Return for the PFC and ZVS driver

outputs.

10 (12) ZVS OUT ZVS MOSFET driver output.

11 (13) PFC OUT PFC MOSFET driver output.

12 (14) VCC

13 (15) REF

Shunt-regulated supply voltage.

Buffered output for the internal

7.5V reference.

14 (16) FB

Transconductance voltage error

amplifier input.

2

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