Distortion-Cancelling High-Voltage LED Driver from STMicro Targets Smart Lighting

September 25, 2019 Alix Paultre

The HVLED007 AC/DC LED driver from STMicroelectronics is a current-mode PFC controller optimized for use with isolated, high-power-factor, quasi-resonant flyback converters. A novel distortion-cancelling input-current shaping circuit ensures an effectively sinusoidal input waveform with less than 5 percent total harmonic distortion (THD) over the full load and input-voltage range. With near-unity power-factor capability and a maximum efficiency over 90 percent, the HVLED007 is a single-chip solution that addresses multiple medium- and high-power LED-lighting applications up to 80W.

The electrical parameters of the HVLED007 are specified down to -40°C, allowing use in outdoor 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.

The HVLED007 is in production now in the industry-standard SO8 small-outline package, from $0.36 for orders of 1,000 pieces.

For more information, visit www.st.com.

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