Winsemi WS9822B
The WS9822B is a three-stage dimming constant current LED driver with high precision and is applied to non-isolated buck LED power system. The WS9822B integrates a switch dimming circuit and can change the output current through switch shifting. The device operates in critical conduction mode and is suitable for universal input offline LED lighting to dim with three-stage by switcher.| Part No. | WS9822B |
|---|---|
| Datasheet | WS9822B Download |
| Manufacturer |  Winsemi |
| Description | Non-isolated Buck High Precision Three-stage Dimming LED Driver |
| Buy | Stock & Price |
DESCRIPTION
Non-isolated Buck High Precision Three-stage Dimming LED DriverFEATURES
● Three-stage switcher dimming: 100%-40%-15%● Compatible PCB with WS3442
● Internal 500V Power MOSFET
● Critical Conduction Mode Operation
● ±3% LED Current Accuracy
● without Auxiliary Winding for power supplying
● Efficiency up to 93%
● LED Open and Short Circuit Protection
● Thermal Regulation Function to avoid lights flicking under high temperature. Typical Applictions
● T5/T8 LED Strings
● Ceiling Lamps
● Bulbs
● Other LED Lightings
DESCRIPTION
The WS9822B utilizes propr
