WS3252
Pin Definition and Device Marking
1 G N D V C C 6
52: WS3252
2
5
GAT E COM P
Y: Year Code(0-9)
WW: Week Code (1-52)
3
4
C S
IN V
SOT23-6
Pin Function Description
Pin
Name
GND
GATE
CS
Pin
Pin Type
Function Description
Number
1
2
3
GND
Ground.
Gate-driven output
Current Monitoring
Totem-pole gate driver output for power MOSFET.
Current sense input.
The voltage feedback from auxiliary winding. Connected to
resistor divider from auxiliary winding reflecting output voltage.
PWM duty cycle is determined by EA output and current sense
signal at pin3.
INV
4
Feedback Input
COMP
VCC
5
6
Loop Compensation
Power
Loop Compensation for CV Stability
Power supply
Block Diagram
G N D 1
V C C
6
Vcc_OVP
regulator
U V LO
P O R
Inter supply
C L K
Generation
Logic
2
Driver
O C P
Gate
C C
Controller
COM P
I N V
5
4
L E B
P W M
& S S
-
+
Drop Comp
Sampler
-
3
C S
E A
2 V
+
Sampling
Controller
2/8
Steady, keep you advance
WINSEMI [ SHENZHEN WINSEMI MICROELECTRONICS CO., LTD ]
