HVLED807PFTR STMicroelectronics

HVLED807PF Offline LED driver with primary-sensing and high power factor up to 7 W Datasheet production data Features High power factor capability (> 0.9) 800 V, avalanche rugged internal 11 power MOSFET Internal high-voltage startup Primary sensing regulation (PSR) +/- 5% accuracy on constant LED output current Quasi-resonant (QR) operation SO16N Optocoupler not needed Open or short LED string management Automatic self supply Table 1. Device summary Applications Order code Package Packaging AC-DC LED driver bulb replacement lamps up HVLED807PF Tube SO16N to 7 W, with high power factor HVLED807PFTR Tape & Reel AC-DC LED drivers up to 7 W Description The HVLED807PF is a high-voltage primary switcher intended for operating directly from the rectified mains with minimum external 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 an 800 V, avalanche-rugged Power MOSFET, in the same package. There is no need for the optocoupler thanks to the patented primary sensing regulation (PSR) technique. The device assures protection against LED string fault (open or short). February 2013 Doc ID 023464 Rev 5 1/36 This is information on a product in full production. www.st.com 36Contents HVLED807PF 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 . 10 3.1 Absolute maximum ratings 10 3.2 Electrical characteristics 10 4 Device description . 15 4.1 Application information . 15 4.2 Power section and gate driver . 16 4.3 High voltage startup generator . 17 4.4 Secondary side demagnetization detection and triggering block . 18 4.5 Constant current operation 20 4.6 Constant voltage operation . 22 4.7 Voltage feed-forward block 23 4.8 Burst-mode operation at no load or very light load 25 4.9 Soft-start and starter block 26 4.10 Hiccup mode OCP 26 4.11 High Power Factor implementation 27 4.12 Layout recommendations . 30 5 Package information 32 6 Revision history . 35 2/36 Doc ID 023464 Rev 5