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 ...