WS3215
Pin Definition and Device Marking
Pin Function Description
Pin Name
SW
Pin No.
Pin Type
Output
Function Description
1
Drain terminal of internal Power MOSFET.
Signal and Power GND.
GND
2
3
Power
Used for enabling Switch and Dimming with either a DC voltage or
PWM input signal .
DIM
CSN
Floating
4
5
6
Current
Used for high-side output current sensing with an external sensing
resistance between CSN and VIN.
Monitoring
Frequency
Setting
Power supply input. Bypass with capacitor as close to the device as
possible .
VIN
Connected to GND for thermal considerations and pasted on PCB for
reducing thermal resistance.
Exposed PAD
Floating
Block Diagram
2/9
Steady, keep you advance
WINSEMI [ SHENZHEN WINSEMI MICROELECTRONICS CO., LTD ]
