©SiFirst Technology

- 2 -

Confidential

SiFirst_DS_7301_V1.0

Ordering Information

Part Number

Top Mark

Package

Tape & Reel

SF7301SG

SF7301SG

SOP8

Green

Yes

Marking Information

SF7301SG

Y WW

YWW: Year&Week code

Pin Description

Pin Num

Pin Name

I/O

Description

1

FB

I

Inverting input of the error amplifier. If not be used, this pin should be

connected to GND

2

NC

\

3

LPC

I

Winding detection. This pin is used to detect the voltage on the winding

and calculate the area of the winding signal during the on time period of

the primary GATE.

4

GREEN

I

Program a voltage reference with a resistor form GREEN to GND, to

enable synchronous rectification MOSFET drive signal

5

GND

P

IC ground pin

6

GD

O

Totem-pole gate driver output to drive the external MOSFET.

7

VDD

P

IC power supply pin.

8

COMP

O

Output of the error amplifier. A feedback network is placed between this

pin and PIN1.