General Description
The WS3412 is designed for active PFC non-isolated buck LED driver. It operates at valley switching mode with high efficiency, low EMI and High PF. The output current automatically adapt to the variation of the inductance and the output voltage.The truly constant current LED is realized. The WS3412 integrates 550V power MOSFET, using SOP8 package, producing up to 260mA output current. It can achieve excellent constant current performance with very few external components.

FEATUREs
High Power Factor Correction, Low Total Harmonic Distortion
Dynamic Temperature Compensation
550V Power MOSFET Integrated
No Auxiliary Winding For Supplying
SOP8 Package,Up To 260mA Output Current
Valley Switching, High efficiency,Low EMI
Automatic Compensate the Inductance Variation
Automatic Adapt to the Change of Output Voltage
LED Short Circuit Protection
Over Voltage Protection
Over Temperature Protection
Open Circuit Protection
Few External Components

APPLICATIONs
LED Driver Supply