ST offers a large portfolio of energy-efficient
DC/DC powered LED drivers
for general lighting, display LED backlighting, automotive exterior and interior lighting ,RGB and monochromatic
for signage and traffic signals.
Ideal for both parallel and series configurations, they enable high-efficiency, high-current accuracy, low-noise and small-size solutions. Topologies include buck regulator LED drivers, boost regulator LED drivers, offline LED drivers, linear
, programmable multi-channels with high dimming capability.
All-in-one high-voltage LED-lighting control chip for efficient dimming, enhanced accuracy and fast start-up
HVLED001B contains high-voltage startup and sensing circuitry that simplifies connection to the AC line. Its advanced features support multi-platform reuse and compliance with the latest lighting regulations, and include:
Very accurate line and load regulation over wide range to ensure constant output voltage or output current
Constant output voltage regulation, with no need of optocoupler, ensures voltage remains below recognized 60V safe limit, improving the application robustness
Frequency foldback for improved efficiency and regulation at light load with good efficiency at medium load
Accurate and smooth dimming
Power-conversion efficiency greater than 90%
No-load power consumption less than 100mW
Power factor greater than 0.9, Total Harmonic Distortion (THD) below 10%
Low EMI at light load and medium load
Built-in over-current, input over-voltage, brownout, and optocoupler failure protection
ST’s smart Auto-Reload Timer (ART) ensures latch-free protection for enhanced safety
Best-in-class power factor, efficiency, and reliability for LED lighting
Operating directly from the rectified mains, ST’s
HVLED001A offline controller for LED lighting with constant-voltage primary-sensing, uniquely integrates both high- and low-voltage circuitry on the same chip, eliminating the cost of external high-voltage circuitry. The high power factor (>0.9), low total harmonic distortion (<10%), and high power-conversion efficiency (>90%) ensure compliance with the most stringent lighting standards in an efficient, compact, and cost-effective solution.