Part WS3442
Description Non-isolated Buck APFC Offline LED Driver
Manufacturer WINSEMI
Size 605.07 KB
WINSEMI

WS3442 Overview

Description

The WS3442 is a high precision buck constant current LED driver. The device operates in critical conduction mode and is suitable for 85Vac~265Vac universal input offline LED lighting.

Key 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