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WS3416H Datasheet(PDF) 1 Page - Shenzhen Winsemi Microelectronics Co., Ltd |
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WS3416H Datasheet(HTML) 1 Page - Shenzhen Winsemi Microelectronics Co., Ltd |
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1 / 8 page  WS3416H ProductDescription WINSEMI MICROELECTRONICS WINSEMI MICROELECTRONICS WINSEMI MICROELECTRONICS WINSEMI MICROELECTRONICS WINSEMI MICROELECTRONICS Copyright@WinsemiMicroelectronics Co.,Ltd.,All rightreserved 1030 Features Internal 650V Power MOSFET Active PFC for High Power Factor and Low THD Critical Conduction Mode Operation System Efficiency up to 95% Without auxiliary winding Excellent Line and Load Regulation ±3% LED Output Current Accuracy Thermal Regulation Function LED Short/Open Protection Current Sensing Resistor Open Protection Auto Fault Recovery Available in DIP7 Package Applications E27 LED Bulb, Spot Light PAR30, PAR38 Lamp T8/T10 LED String Other LED Lighting Description The WS3416H is a high precision non-isolated buck driver with active PFC, specially designed for universal input offline constant current LED lighting. The driver with on-chip PFC circuit achieves high power factor and low THD. Operating in critical conduction mode, the power MOSFET switching loss is reduced and the inductor is fully utilized. The WS3416H integrates a 650V power MOSFET. With few external components, the LED output current can be precisely controlled. The WS3416H offers rich protection functions to improve the system reliability, including LED open circuit protection, LED short circuit protection, CS resistor open circuit protection and cycle by cycle current limit. All the protection functions are auto-recovery. The system reliability is further improved by the thermal regulation function. The output current is reduced when the driver is over temperature. The WS3416H has ultra low start up current and ultra low operating current. The WS3416H is available in DIP7 Package. Typical Application Non-isolated Buck APFC Offline LED Driver |
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