WS2580 Datasheet, PDF (2/9 Pages) Shenzhen Winsemi Microelectronics Co., Ltd – Low Power Primary Side AC/DC Controller

WS2580 Product Description
Pin Definition and Device Marking
WS2580 is available in SOT23-6 package:
OUT ₁
GND 2
VCC 3
6 FB
5 CPC
4 CS
.80 YMF
80: WSXX80;
Y: Year 2=2012，
M:Month 1,2…A=10,B=11,C=12
F: Factory No.
Pin Function Description
Pin Name Pin Number
Function Description
OUT
1
Drive output. Connects to the power MOSFET
GND
2
Ground.
VCC
3
Power supply.
CS
4
Current sense input.
CPC
5
Cable voltage compensation input pin, connects to an external filter capacitor
FB
6
Feedback input
Block Diagram
CPC
5
Cable 补 偿
EA
6
FB
恒压控制
ZC D
p fm
To n s
Dectector
TONS
R Q ^CV
S
VCC
3
Regulator ^{VD D _ 5 V}
&
B IA S
p fm
1
D R IV E R
OUT
Line 补 偿
恒流控制
CS
4 _{R C滤 波}
0 .5 V
0 .4 V
R Q ^CC
S
Pre-OCP
2
GND
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WIN SEM I M ICROELECTRON ICS
WIN SEM I M ICROELECTRON ICS
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