Description
The HVLED001A is an enhanced peak current
mode controller capable of controlling high power
factor (HPF) flyback or buck-boost topologies in
LED drivers that have an output power of up to
150 W. Other topologies, such as buck, boost and
SEPIC, can also be implemented.
ST’s innovative high voltage technology allows
direct connection of the HVLED001A device to
the input voltage to start up the device and to
monitor the input voltage, without the need for
external components.
The device embeds advanced features to control
either the output voltage or the output current
precisely and reliably using a reduced number of
mainly passive components. Startup and light
load conditions are managed by dedicated
operating schemes to improve the quality of the
regulation of the output variable in the final
application. Abnormal conditions such as open
circuit, output short-circuit, input overvoltage/
undervoltage and circuit failures like open loop
and overcurrent of the main switch are effectively
controlled.
A smart auto-recover timer (ART) function is builtin to guarantee automatic application recovery,
without loss of reliability

Features
 Quasi resonant (QR) topology
 Optimized output voltage accuracy at any load
(PSR mode)
 Improved transient response and startup time
 Direct optocoupler connection for current loop
regulation with feedback disconnection
detection
 800 V high voltage startup
 High power factor and low THD over wide
range of input voltage and load variations
 High efficiency and output stability over wide
voltage and current range
 Low startup and quiescent current
 Programmable minimum off-time
 Integrated input voltage detection for high
power factor capability and protection
triggering
 Latch-free device guaranteed by smart autoreload timer (ART)
 0-10 and PWM dimming compatible
 Remote control pin

Applications
 Single stage LED drivers with high power factor
up to 75 W
 Two stages LED drivers up to 150 W