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WS9221

Part Number	WS9221
Manufacturer	Winsemi
Description	High Precision PSR Constant Current LED Driver
Published	Dec 13, 2016
Detailed Description	WS9221ProductDescription High Precision PSR Constant Current LED Driver Features  Built-in650V Power MOSFET  Constan...
Datasheet	WS9221 PDF File

Overview

WS9221ProductDescription 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 WS9221 is a high precision primary-side feedback and regulation controller for LED lighting, it operates in constant current control mode and is designed to work in inductor current discontinuous conduction mode and especially suitable for flyback convertor under universal input.
The output power of system is recommended to less than 5W.
The WS9221integrates 650V power MOSFET.
Sin...

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