WS3443

WS3443 is Non-isolated Buck Offline LED Driver manufactured by WINSEMI.

WS3443 Datasheet

Part number	WS3443
Download	WS3443 Datasheet (PDF)
File Size	523.87 KB
Manufacturer	WINSEMI
Description	Non-isolated Buck Offline LED Driver

Related WINSEMI Datasheets

Part Number	Description
WS3440	Constant Current Controller
WS3441	Non-isolated Buck Offline LED Driver
WS3441A	Non-isolated Buck Offline LED Driver
WS3442	Non-isolated Buck APFC Offline LED Driver
WS3442A	Non-isolated Buck Offline LED Driver

WS3443 Distributor

WS3443 Description

The WS3443 is a high precision buck constant current LED driver. The device operates in critical conduction mode and is suitable for 85Vac~265Vac universal input offline LED lighting. The WS3443 integrates a 500V power MOSFET.

WS3443 Key Features

Critical Conduction Mode Operation
Internal 500V Power MOSFET
No Auxiliary Winding
Ultra Low Operating Current
±3% LED Output Current Accuracy
Efficiency up to 93%
LED Open Protection
LED Short Protection
Current Sensing Resistor Short Protection
Thermal Regulation Function

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