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WS3412HS7P Datasheet(PDF) 1 Page - Shenzhen Winsemi Microelectronics Co., Ltd

Part # WS3412HS7P
Description  Non-isolated Buck APFC Offline LED Driver
PDF  8 Pages
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Manufacturer  WINSEMI [Shenzhen Winsemi Microelectronics Co., Ltd]
Direct Link  http://www.winsemi.com
Logo WINSEMI - Shenzhen Winsemi Microelectronics Co., Ltd

WS3412HS7P Datasheet(HTML) 1 Page - Shenzhen Winsemi Microelectronics Co., Ltd

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WS3412H 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 SOP7 Package
Applications
E27 LED Bulb, Spot Light
PAR30, PAR38 Lamp
T8/T10 LED String
Other LED Lighting
Description
The WS3412H 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 WS3412H integrates a 650V power MOSFET. With
few external components, the LED output current can be
precisely controlled.
The WS3412H 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 WS3412H has ultra low start up current and ultra low
operating current.
The WS3412H is available in SOP7 Package.
Typical Application
Non-isolated Buck APFC Offline LED Driver


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