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WS9445 Product Description
Features Critical Conduction Mode Operation Internal 600V 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 BuckOffline LED Driver
Description
The WS9445 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 WS9445 integrates a 600V power MOSFET, and can achieve excellent constant current performance with very few external components, so the system cost and size are minimized.