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USL3531J

Part Number	USL3531J
Manufacturer	UTC
Description	NON-ISOLATED BUCK OFFLINE LED DRIVER
Published	Apr 22, 2020
Detailed Description	UNISONIC TECHNOLOGIES CO., LTD USL3531J Preliminary LINEAR INTEGRATED CIRCUIT NON-ISOLATED BUCK OFFLINE LED DRIVER ...
Datasheet	USL3531J PDF File

Overview

UNISONIC TECHNOLOGIES CO.
, LTD USL3531J Preliminary LINEAR INTEGRATED CIRCUIT NON-ISOLATED BUCK OFFLINE LED DRIVER  DESCRIPTION The UTC USL3531J is a high performance, high precision and low cost constant current LED driver for non-isolated buck application.
The device operates in critical conduction mode and is suitable for 85V~265V universal input offline LED lighting.
It operates in critical conduction mode, the output current does not change with the inductance and LED output voltage.
The UTC USL3531J integrates a 500V power MOSFET.
It can achieve excellent constant current performance with very few external components, so the system cost and size are minimized.
The UTC USL3531J offers rich protection functions to improve the system reliability, including LED open circuit protection, LED short circuit protection, VCC under voltage protection, CS resistor short circuit protection and thermal regulation function.
 FEATURES * Critical conduction mode operation * Internal 500V...

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