WS3221 Description
WS3221 High Precision PSR Constant Current LED Driver.
WS3221 Key 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