Winsemi WS9442
The WS9442 is a high precision buck constant current LED driver and is applied to non-isolated buck LED power system with AC input voltage of 85VAC-265VAC. The WS9442 integrates a 500V power MOSFET, and can achieve excellent constant current performance with very few external components, so the system cost and size are minimized. The driver operates in critical conduction mode, and the output current does not change with the inductance and LED output voltage.| Part No. | WS9442 |
|---|---|
| Datasheet | WS9442 Download |
| Manufacturer |  Winsemi |
| Description | Non-isolated Buck Offline LED Driver |
| Buy | Stock & Price |
DESCRIPTION
FEATURES
● Critical Conduction Mode Operation● Internal 500V Power MOSFET
● Gate Drive and No Auxiliary Winding
● ±3% LED Current Accuracy
● Efficiency up to 93%
● LED Short Circuit Protection
● LED Open Circuit Protection
● Current Sense Resistor Short Protection
● Thermal Regulation Function
APPLICATIONS
● LED Bulb Lights● LED Panel Lights
● LED Strings Typical Application Circuit Non-isolated Buck Offline LED Driver
DESCRIPTION
The operating current of the IC is 200uA, so i
