APR343

Document number: DS36884 Rev. 4 - 2

2 of 12

www.diodes.com

December 2014

© Diodes Incorporated

APR343

A Product Line of

Diodes Incorporated

Pin Descriptions

Pin Number

Pin Name

Function

1

DRISR

Synchronous rectification MOSFET Gate drive

2

GND

Ground

3

VCC

Power supply, connected with system output

4

AREF

Program a voltage reference with a resistor from AREF to GND, to enable synchronous rectification

MOSFET drive signal

5

VDET

Synchronous rectification sense input and dynamic function output, connected with secondary winding

Functional Block Diagram

VCC

VDET

GND

Counter

Dynamic

OSC

Integrator

AREF

DRISR

SRDRIVER

OVP

1

2

3

4

5