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WS9221B

Part Number	WS9221B
Manufacturer	Winsemi
Description	High Precision PSR Constant Current LED Driver
Published	Dec 13, 2016
Detailed Description	WS9221BProductDescription High Precision PSR Constant Current LED Driver Features  Built-in650V Power MOSFET  Consta...
Datasheet	WS9221B PDF File

Overview

WS9221BProductDescription High Precision PSR Constant Current LED Driver Features  Built-in650V Power MOSFET  Constant current control without secondary sense and feedback circuit.
 No Auxiliary winding for sensing and supplying  Ultra low operating current to improve efficiency  Universal input voltage  ±5% LED current accuracy  LED short and open circuit protection  CS resistor short circuit protection  VCC under-voltage protection  Over temperature protection  Available in SOP-7 package Applications  GU10/E27 LED bulb, spot light  Other LED lighting Description The WS9221B is a high precision primary-side feedback and regulation controller for LED lighting, it operates in ...

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