WS3418

WS3418ProductDescription Features  Specially Optimized for the EMI  Internal 650V Power MOSFET  Active PFC for High Power Factor and Low THD  Critical Conduction Mode Operation  System Efficiency up to 95%  Without auxiliary winding  Excellent Line and Load Regulation  ±3% LED Output Current Accuracy  Thermal Regulation Function  LED Short/Open Protection  Current Sensing Resistor Open Protection  Auto Fault Recovery  Available in SOP7 Package Applications  E27 LED Bulb, Spot Light  PAR30, PAR38 Lamp  T8/T10 LED String  Other LED Lighting Typical Application Non-isolated Buck APFC Offline LED Driver Description The WS3418 is a high precision non-isolated buck driver with active PFC, specially designed for universal input offline constant current LED lighting. The driver with on-chip PFC circuit achieves high power factor and low THD. Operating in critical conduction mode, the power MOSFET switching loss is reduced and the inductor is...