Distortion-cancelling high-voltage LED driver

14 Mar 2020

Featuring a distortion-cancelling input-current shaping (ICS) circuit, the HVLED007 AC/DC LED driver from STMicroelectronics enables energy-saving solid-state luminaires to comply with increasingly stringent lighting regulations. The HVLED007 implements a peak current mode PFC control optimized for isolated high-power-factor quasi-resonant flyback converters. The ICS ensures an effectively sinusoidal input waveform with very low total harmonic distortion (THD) over the full load and input-voltage range; THD is below 5% at full load. With near-unity power-factor capability and maximum energy efficiency over 90%, the HVLED007 meets designers’ needs for a single control IC to address multiple medium- and high-power LED-lighting applications up to 80W. The electrical parameters of the HVLED007 are specified down to -40°F, allowing use in outdoor lighting including street-lighting as well as indoor applications. The totem-pole output stage can source and sink 600mA and 800mA respectively, enabling use in EN61000-3-2 compliant switched-mode power supplies up to 100W in addition to lighting applications. Protection features including short-circuit, overload, and over-voltage protection are built-in.

STMicroelectronics, Inc. | http://www.st.com/hvled007-pr

 

 


Volume: 2020 March/April