©SiFirst Technology

- 2 -

Confidential

SiFirst_DS_6021_V1.0

FB

1

2

3

VDD

GND

C

SOP7

4

7

6

5

CS

C

NC

Ordering Information

Part Number

Top Mark

Package

Tape & Reel

SF6021TG

SF6021TG

SOP7

Green

SF6021TGT

SF6021TG

SOP7

Green

Yes

Marking Information

YWW: Year&Week code

SF 6 0 2 1 T G

Y WW

Pin Description

Pin Num

Pin Name

I/O

Description

1

VDD

P

IC power supply pin.

2

FB

I

System feedback pin. This control input regulates both the output voltage

in CV mode and output current in CC mode based on the flyback voltage

of the auxiliary winding.

3

NC

-

No connect.

4

CS

I

Current sense pin.

5-6

C

P

High voltage power BJT collector pin.

7

GND

P

Ground