RT9002A/B/C

2

DS9002ABC-04 April 2011

www.richtek.com

Function Block Diagram

Functional Pin Description

Pin No.

Pin Name

Pin Function

1

VIN1

Channel 1 Supply Input.

2

VOUT1

Channel 1 Output Voltage.

3

Cd

Delay Capacitor.

4

VIN2

Channel 2 Supply Voltage.

5

VOUT2

Channel 2 Output Input.

6

VDOUT

Detector Output Voltage. (RT9002A = Active High, RT9002B and RT9002C = Active Low)

7

GND

Common Ground.

8

EN1

Chip Enable (Active High) for Channel 1.

EN1

Current-Limit

and

Thermal

Protection

MOS Driver

+

VOUT1

Shutdown

and

Logic Control

VIN1

Error

Amplifier

V

REF

Current-Limit

and

Thermal

Protection

MOS Driver

+

VOUT2

VIN2

Error

Amplifier

V

REF

GND

VD

Comparator

+

Cd

VDOUT