HVLED815PF Offline LED driver with primary-sensing and high power factor up to 15 W Datasheet - production data Applications AC-DC LED driver bulb replacement lamps up to 15 W, with high power factor AC-DC LED drivers up to 15 W Description The HVLED815PF device is a high voltage primary switcher intended for operating directly from the rectified mains with minimum external SO16N parts and enabling high power factor (> 0.90) to provide an efficient, compact and cost effective solution for LED driving. It combines a high- performance low voltage PWM controller chip and Features an 800 V, avalanche rugged Power MOSFET, in the same package. There is no need for the High power factor capability (> 0.9) optocoupler thanks to the patented primary 800 V, avalanche rugged internal 6 Power sensing regulation (PSR) technique. The device MOSFET assures protection against LED string fault (open or short). Internal high voltage startup Primary sensing regulation (PSR) Table 1. Device summary 3% accuracy on constant LED output current Order code Package Packaging Quasi-resonant (QR) operation HVLED815PF Tube Optocoupler not needed SO16N HVLED815PFTR Tape and reel Open or short LED string management Automatic self supply February 2014 DocID023409 Rev 5 1/34 This is information on a product in full production. www.st.comContents HVLED815PF Contents 1 Principle application circuit and block diagram . 4 1.1 Principle application circuit . 4 1.2 Block diagram . 6 2 Pin description and connection diagrams . 7 2.1 Pin description 7 2.2 Thermal data . 8 3 Electrical specifications 9 3.1 Absolute maximum ratings . 9 3.2 Electrical characteristics . 9 4 Device description . 14 4.1 Application information . 14 4.2 Power section and gate driver . 15 4.3 High voltage startup generator . 16 4.4 Secondary side demagnetization detection and triggering block . 17 4.5 Constant current operation 19 4.6 Constant voltage operation . 21 4.7 Voltage feedforward block 22 4.8 Burst mode operation at no load or very light load 24 4.9 Soft-start and starter block 25 4.10 Hiccup mode OCP 25 4.11 High power factor implementation 26 4.12 Layout recommendations . 29 5 Package information 31 6 Revision history . 33 2/34 DocID023409 Rev 5