WS9221B Datasheet, Winsemi

* Built-in650V Power MOSFET
* Constant current control without secondary sense and feedback circuit.
* No Auxiliary winding for sensing and supplying
* Ul.

* GU10/E27 LED bulb, spot light
* Other LED lighting Description The WS9221B is a high precision primary-side f.

High Precision PSR Constant Current LED Driver Features
* Built-in650V Power MOSFET
* Constant current control without secondary sense and feedback circuit.
* No Auxiliary winding for sensing and supplying
* Ultra low operating curr.