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PDF ( 数据手册 , 数据表 ) WS3418

零件编号 WS3418
描述 Non-isolated Buck APFC Offline LED Driver
制造商 WINSEMI
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WS3418 数据手册, 描述, 功能
WS3418ProductDescription
Features
Specially Optimized for the EMI
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
Typical Application
Non-isolated Buck APFC Offline LED Driver
Description
The WS3418 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 WS3418 integrates a 650V power MOSFET. With
few external components, the LED output current can be
precisely controlled.
The WS3418 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 WS3418 has ultra low start up current and ultra low
operating current.
The WS3418 is available in SOP7 Package.
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WS3418 pdf, 数据表
WS3418 ProductDescription
NOTE:
1.We strongly recommend customers check carefully on the trademark when buying our product, if there is any
question, please don't be hesitate to contact us.
2.Please do not exceed the absolute maximum ratings of the device when circuit designing.
3.Winsemi Microelectronics Co., Ltd reserved the right to make changes in this specification sheet and is
subject to change without prior notice.
CONTACT:
Winsemi Microelectronics Co., Ltd.
ADD:Futian District, ShenZhen Tian An Cyber Tech Plaza two East Wing 1002
Post Code : 518040
Tel : +86-755-8250 6288
FAX : +86-755-8250 6299
Web Site : www.winsemi.com
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WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
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