ML4813CP Просмотр технического описания (PDF) - Micro Linear Corporation

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ML4813CP

Flyback Power Factor Controller

Micro Linear Corporation 

ML4813

PIN CONFIGURATION

ML4813

16-Pin PDIP (P16)

16-Pin SOIC (S16W)

ILIMIT

SOFT START

COMP

VFB

OVP

OA OUT

OA-

OA+

1

16

2

15

3

14

4

13

5

12

6

11

7

10

8

9

TOP VIEW

CT

GND

VREF

VCC

OUT

PWR GND

SYNC

RT

PIN DESCRIPTION

PIN NAME

1

ILIMIT

FUNCTION

Current limit sense pin which is

normally connected to the sense

resistor. When ILIMIT exceeds 1V,

the PWM cycle is terminated

2

SOFT START Connection for the soft start

capacitor

3

COMP

Output of error amplifier and input

to the PWM comparator

4

VFB

5

OVP

Control loop feedback voltage

Overvoltage comparator input

6

OA OUT

Output of the uncommitted op

amp

7

OA-

Inverting input of the uncommitted

op amp

8

OA+

Non-inverting input of the

uncommitted op amp

PIN NAME

9

RT

FUNCTION

Connection for the oscillator

timing resistor

10 SYNC

Input for synchronizing the

oscillator to an external source

11 PWR GND Return for the high current output

transistors

12 OUT

High current driver output

13

VCC

14

VREF

15 GND

Power supply input

Buffered reference output

Analog signal ground

16

CT

Connection for the oscillator

timing capacitor

2

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