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WS3412

Part Number	WS3412
Manufacturer	WINSEMI
Description	Active PFC Non-isolated Buck LED Driver
Published	Jul 6, 2016
Detailed Description	WS3412 Product Description WS3412 Active PFC Non-isolated Buck LED Driver Features � High Power Factor Correction, Low...
Datasheet	WS3412 PDF File

Overview

WS3412 Product Description WS3412 Active PFC Non-isolated Buck LED Driver Features � High Power Factor Correction, Low Total Harmonic Distortion � Dynamic Temperature Compensation � 550V Power MOSFET Integrated � No Auxiliary Winding For Supplying � SOP8 Package, Up To 260mA Output Current � Valley Switching, High efficiency, Low EMI � Automatic Compensate the Inductance Variation � Automatic Adapt to the Change of Output Voltage � LED Short Circuit Protection � Over Voltage Protection � Over Temperature Protection � Open Circuit Protection � Few External Components Applications � LED Driver Supply Typical Application Circuit General Description The WS3412 is designed for active PFC non-isolated buck LED driver.
It operates at valley switching mode with high efficiency, low EMI and High PF.
The output current automatically adapt to the variation of the inductance and the output voltage.
The truly constant current LED is realized.
The WS3412 integrates 550V power MOSFET, using SOP 8 package, producing up to 260mA output current.
It can achieve excellent constant current performance with very few external components.
The WS3412 offers rich protection functions, including over voltage protection, LED short circuit protection, cycle by cycle current limiting, dynamic temperature compensation, over temperature protection and soft start.
WS3412 consumes very low start current and operation current, driving LED efficiently under universal AC input(85VAC~265VAC).
WS3412 is available in SOP8 package.
5D CS 8 6D CS 7 3 VCC FB 4 AC 2 GND COMP 1 LED+ LE D- WIN SEM I M ICROELECTRON ICS WIN SEM I M ICROELECTRON ICS WIN SEM I M ICROELECTRON ICS Copyr ight@Winsemi Microelectronics Co.
, Ltd.
, All right reserved.
WIN SEM I M ICROELECTRON ICS W/T-S031-Rev.
A/ 0 Nov.
2013 WIN SEM I M ICROELECTRON ICS 0214 WS3412 Product Description Pin Definition and Device Marking WS3412 is available in SOP-8 package.
W S3 41 2S 8 P AXB YM COMP 1 GND 2 VCC 3 8 CS 7 CS 6D FB 4 ...

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