data brief for further information contact your local stmicroelectronics sales office. april 2011 doc id 018708 rev 1 1/4 4 STEVAL-ILL037V1 demonstration board for the hvled805 ic for led power supply features input voltage: 90 vac - 265 vac input frequency: 50 hz - 60 hz output power: 3.2 w expected efficiency: 85% output voltage: ~16 vdc (from 3 to 5 leds) output current: 200 ma for e26/e27/gu10 led lamps rohs compliant description the STEVAL-ILL037V1 demonstration board implements a 3.2 w (16 v / 0.2 a) wide range led driver to support from 3 to 5 leds for led lamps (e.g. e27 and gu10). the hvled805 is an offline all-primary sensing switching regulator, specific to offline led drivers, based on quasi-resonant zvs (zero voltage switching at switch turn-on) flyback topology, due to its simplicity and low cost. STEVAL-ILL037V1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? www.st.com
circuit schematic STEVAL-ILL037V1 2/4 doc id 018708 rev 1 1 circuit schematic figure 1. circuit schematic 9 & |