APR346

Document number: DS38999 Rev. 6 - 2

2 of 11

www.diodes.com

May 2018

© Diodes Incorporated

APR346

Pin Descriptions

Pin Number

Pin Name

Function

1

AREF

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

MOSFET drive signal

2

GND

Ground

3

VDET

SR MOS drain-to-source voltage sense input, connected to drain pin of SR MOSFET through a resistor

4

VCC

Power supply, connected with system output

5

CCM

Primary trigger signal sense input

6

DRISR

Synchronous rectification MOSFET Gate drive

Functional Block Diagram

Regulator

Power

OK

VDD

LEB

Time

Test

Mode

Fault

Mode

Gate

Monitor

Integrator

∫(VDET-

VCC)dt

VCC

S

R

Q

S

R

Q

Drive

DRISR

AREF

VDET

CCM

GND

VCC

1

6

3

4

5

2