RT7302

2

DS7302-03 May 2015

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Copyright 2015 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Functional Pin Description

Pin No.

Pin Name

Pin Function

1

HV

High Voltage Input for Startup.

2

GND

Ground of the Controller.

3

COMP

Compensation Node. Output of the internal trans-conductance amplifier.

4

MULT

Input for Line Voltage Signal. This pin is used to sense the line voltage by resistor divider

to achieve dimming function.

5

ZCD

Zero Current Detection Input. This pin is used to sense the voltage at auxiliary winding of

the transformer.

6

CS

Current Sense Input. Connect this pin to the current sense resistor.

7

GD

Gate Driver Output for External Power MOSFET.

8

VDD

Marking Information

Ordering Information

Note :

Richtek products are :



RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.



Suitable for use in SnPb or Pb-free soldering processes.

Pin Configurations

(TOP VIEW)

SOP-8

RT7302

Package Type

S : SOP-8

Lead Plating System

G : Green (Halogen Free and Pb Free)

HV

GND

COMP

MULT

VDD

GD

ZCD

CS

2

3

4

5

6

7

8

RT7302

GSYMDNN

RT7302GS : Product Number

YMDNN : Date Code