WS3221 Product Description
WS3221 High Precision PSR Constant Current LED Driver
Features
■ Built-in 650V Power
MOSFET ■ ±5% LED Current Accuracy ■ Primary-side Sensing and Regulation Without TL431 and Opto-coupler ■ No Auxiliary Winding For Sensing And Supplying ■ Ultra low operating current ■ LED Open/Short Circuit Protection ■ External programmable LED Open
voltage ■ CS Resistor Short Circuit Protection ■ VCC Clamp & under
voltage lockout( UVLO) ■ Over Temperature Protection ■ Temperature compensation technology
Applications
■ GU10 LED driver ■ LED spot light ■ Other LED lighting
General Description
WS3221 is a high precision primary-side feedback and
regulation controller for LED ligh...