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WS3240 반도체 회로 부품 판매점

High Precision PSR LED Constant Current Driver



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WINSEMI
WS3240 데이터시트, 핀배열, 회로
WS3240 ProductDescription
High Precision PSR LED Constant Current Driver
Features
Built-in 650V UHV Power MOS
LED Constant Current: ±5%
Fixed Primary Peak Current: 185mA
Without the Secondary winding
Start up time less than 100ms
High precision constant current regulation due to
patented CC control
Built-in line compensation
Ultra low operation current
Maximum power 4W
LED open/short protection
Floating pin protection
Excellent EMI performance with PFM control
Cycle-by-cycle current limit
Built-in leading Edge Blanking
VDD Under Voltage LockoutUVLO
Built-in over temperature protection
Applications
LED lighting
Description
WS3240 is a high precision primary side feedback
constant current LED driver, suitable for flyback isolated
LED in sub 4W power range at universal AC input. It
operates in discontinuous current mode.
WS3240 integrates 650V power MOS. It operates in
primary side sensing and regulation, without a secondary
feedback circuit, also need not the auxiliary transformer
winding detection and power supply, only need few
peripheral components can realize constant current,
greatly saves the cost and size of the system.
The start time of WS3240 is less than 100ms at
universal AC input with the high voltage start technology,
realizing instant bright of the LED lamp.
The current precision is less than ± 5%
with high precision current sampling circuit and line
compensation. With patented constant current controlling
mode, excellent linear regulation is achieved.
WS3240 provides a variety of comprehensive
protection mode, including: cycle by cycle current limit
protection(OCP), LED open/short circuit protection, under
voltage protection and clamping, over temperature
protection, pin floating protection etc..
WS3240 is offered in TO-92 package.
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
Copyright@Winsemi Microelectronics Co., Ltd., All right reserved.
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
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WS3240 데이터시트, 핀배열, 회로
WS3240 ProductDescription
Typical Application
Pin Configuration and Marking Information
WS3240 is offered in TO-92 package, as bellows:
WS3240NP
AProduct Code
XInternal Code
BCYInternal Code For QC
YMXD/C
Pin Definition
Pin Name
Drain
GND
VDD
Pin No.
1
2
3
Pin Type
Drain
Ground
Power
Function Description
The drain terminal of Power MOSFET
Ground.
Power Supply.
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
www.winsemi.com Tel : +86-755-8250 6288 Fax : +86-755-8250 6299
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WS3240 led

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WS3240

High Precision PSR LED Constant Current Driver - WINSEMI



WS3241

High Precision PSR LED Constant Current Driver - WINSEMI