WS3443 - WINSEMI

WS3443 Non-isolated Buck Offline LED Driver

Features  Critical Conduction Mode Operation  Internal 500V Power MOSFET  No Auxiliary Winding  Ultra Low Operating Current  ±3% LED Output Current Accuracy  Efficiency up to 93%  LED Open Protection  LED Short Protection  Current Sensing Resistor Short Protection  Thermal Regulation Function  Available in DIP-7 Package Applications  LED Candle L.

Features

 Critical Conduction Mode Operation
 Internal 500V Power MOSFET
 No Auxiliary Winding
 Ultra Low Operating Current
 ±3% LED Output Current Accuracy
 Efficiency up to 93%
 LED Open Protection
 LED Short Protection
 Current Sensing Resistor Short Protection
 Thermal Regulation Function
 Available in DIP-7 Package Applications
 LED Candle Light
 LED Bulb, Spot Light
 T8/T10 LED String
 Other LED Lighting Typical Application Non-isolated Buck Offline LED Driver Description The WS3443 is a high precision buck constant current LED driver. The device operates in critical conduction mo.