USL3532K数据手册UTC中文资料规格书

描述 Description

The UTC  USL3532K is a high performance, high precisionand low cost constant current LED driver for non-isolated buckapplication. The device operates in critical conduction mode and is suitable for 85V~265V universal input offline LED lighting. Itoperates in critical conduction mode, the output current does not change with the inductance and LED output voltage. The UTC  USL3532K 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  USL3532K 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.

特性 Features

Critical conduction mode operationInternal 500V Power MOSFETUltra low operating currentNo auxiliary winding±5% LED output current accuracyLED short protectionLED open protectionVCC under voltage protectionCurrent sensing resistor short protectionThermal regulation function