AP3766

Document number: DS37658 Rev.2 - 2

2 of 8

www.diodes.com

December 2014

© Diodes Incorporated

AP3766

A Product Line of

Diodes Incorporated

Pin Descriptions

Pin Number

Pin Name

Function

1

OUT

This pin drives the base of external power NPN switch

2, 5

GND

Ground

3

VCC

Supply voltage

4

CS

The primary current sense

6

FB

The voltage feedback from the auxiliary winding

Functional Block Diagram

Regulator

&

Bias

tONSEC

Detector

0.1V

4.0V

pfm

tONS

COMP

EA

UVLO

CV_ctrl

pfm

Driver

R

Q

S

R

Q

S

CC_ctrl

3

1

2, 5

4

6

OCkP

Peak Current Control & LEB

Constant Current Control

tONS

Constant Voltage Control

VCC

OUT

GND

CS

FB