HVLED001B High power factor flyback controller with constant voltage primary-sensing and ultra-low standby consumption Datasheet - Production data Description The HVLED001B is an enhanced peak current mode controller able to control mainly high power factor (HPF) flyback or buck-boost. Some other topologies such as buck, boost and SEPIC, can also be implemented. SSOP10 Primary side regulation and optocoupler control can be applied independently on the chip, both exploiting precise regulation and very low standby Features power during no load conditions. Quasi resonant (QR) topology The innovative ST high voltage technology allows Primary side regulation of output voltage direct connection of the HVLED001B to the input Direct optocoupler connection for current loop voltage in order to both start up the device and to regulation with feedback disconnection monitor the input voltage, without the need for detection external components. 800 V high voltage startup Abnormal conditions like open circuit, output short-circuit, input over-voltage or under-voltage High power factor and low THD in universal and circuit failures like open loop and overcurrent range of the main switch are effectively controlled. High efficiency and output stability in wide voltage and current range A smart Auto Recover Timer (ART) function is built in to guarantee an automatic application Extremely low standby power at no load recovery, without any loss of reliability. condition Programmable frequency foldback Table 1. Device summary Integrated input voltage detection for high Order code Package Packaging power factor capability and protection triggering HVLED001BY Tube SSOP10 Latch-free device guarantee by smart auto- HVLED001BTR Tape and reel reload timer (ART) 0-10 and PWM dimming compatible Remote control pin Applications Single-stage LED drivers with high power factor Two-stage LED drivers January 2019 DS12748 Rev 2 1/33 This is information on a product in full production. www.st.comContents HVLED001B Contents 1 Block diagram 4 2 Typical application - HPF flyback 5 3 Pin settings 6 4 Electrical data 8 4.1 Absolute maximum ratings . 8 4.2 Thermal data . 8 4.3 Recommended operating conditions . 9 5 Electrical characteristics 10 6 Typical electrical characteristic . 14 6.1 Parameter graphs . 14 7 Application information . 17 7.1 Operating modes . 17 7.1.1 Start-up mode 19 7.1.2 Ramp-up mode . 20 7.1.3 Active mode 20 7.1.4 Low consumption mode . 20 7.1.5 Stop mode . 20 7.2 Control loop . 20 7.2.1 Current sense input 21 7.2.2 Feedback input . 22 7.2.3 Zero current detection 22 7.2.4 Primary side regulation feature . 25 7.2.5 Burst mode operation 25 7.3 Gate driver 26 7.4 IC supply management 26 7.4.1 VCC supply management . 26 7.4.2 High voltage startup 27 7.5 Auto restart timer (ART) 27 2/33 DS12748 Rev 2