RT9832

2

DS9832-00

January 2013

www.richtek.com

©

Copyright

2013 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Functional Pin Description

Function Block Diagram

Pin No.

Pin Name

Pin Function

A1

VCC

Supply Voltage Input. Connect a 0.47

μF or larger ceramic capacitor from VCC to

ground as close as possible to the VCC pin.

A2

RSET

Duty Set Pin. Connect an external resistor to set PWM duty. When the RSET pin

is floating, the PWM duty cycle is equal to 50% (typ.).

B1

GND

Ground.

B2

EN

Enable Control Input (Active Low).

C1

OUT

Open Drain Output. Connect a pull-up resistor from this pin to VCC or a suitable

supply.

C2

NC

No Internal Connection.

EN Logic

VCC

EN

OUT

GND

RSET

UVLO

Timer

RSET Timer

Duty

Generator

OTP