USL3533
Overview
The UTC USL3533 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.
- Critical conduction mode operation * Internal 500V Power MOSFET * Ultra low operating current * No auxiliary winding * ±5% LED output current accuracy * LED short protection * LED open protection * VCC under voltage protection * Current sensing resistor short protection * Thermal regulation function
