WS9931 Datasheet, PDF (2/6 Pages) List of Unclassifed Manufacturers – LED Ripple Current Elimination Controller

WS9931 Product Description
Pin Configuration and Marking Information
The WS9931 is available in ESOP-8 Package. The top marking is shown as below:
WS9931EP：Product Code
A：Product Code
X：Internal Code
BCY：Internal Code for QC
YMX：D/C
Pin Definition（Note: the heat sink at the bottom is connected to Pin 5.）
Name
Pin No.
Description
VCC
1
Power Supply
NC
2/3/4/6
NA
LEDN
5
The negative pin of LED series
GND
7/8
Ground Pin
Internal Block Diagram
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
www.winsemi.com Tel : [phone] Fax : [phone]
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
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