STEVAL-ILL055V1 STMicroelectronics

STEVAL-ILL055V1 High-efficiency isolated offline LED drive with 11 W fixed output and high PF, based on the HVLED815PF (EU input range) Data brief Description The STEVAL-ILL055V1 is an isolated SMPS designed in high power factor flyback topology. It generates a 640 mA nominal output current, delivering up to 11 W of output power and provides a cost-effective and space-saving solution. This product evaluation board is based on the HVLED815PF, a monolithic converter Features integrating both an 800 V avalanche-rugged MOSFET and PWM controller in a single Input: package. Voltage: 185 264 Vac Frequency: 45 55 Hz Output: Current: 640 mA Voltage: 6 LED module (blue or white) Power factor > 0.9 Efficiency 84% PCB type and size: FR4 Double layer Copper thickness: 35 m LED driver size: 17 x 55 mm Board size: 34 x 88 mm Isolation Isolated 2 kV / 4 mm isolation gap EMI According to EN55022 Class B April 2014 DocID026196 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-ILL055V1 1 Schematic diagram Figure 1: STEVAL-ILL055V1 circuit schematic C10 C3 2.2nF R1 1nF 120k D3 L1 T1 + LED 3.3mH STPS3150UF D1 P2 C12 R12 C13 C14 2 25V U1 150k 50V 50V 470uF 1 10uF 10uF R17 330k R9 HVLED815PF BD1 10R C1 C2 - LED R18 68nF 100nF 330k D2 R8 1N4148 47k R15 1W 10R R5 C5 5k1 1uF D4 R7 R2 R3 12k C7 C8 1N4148 3R6 1R5 1nF 100nF R19 C4 C15 3k C6 10uF 22uF C21 470nF 68nF GND P1 GSPG0904140910SG 2/4 DocID026196 Rev 1 L 2 1 N 8 9 7 10 COMP NA 6 11 DMG NA 5 12 ILED NC 4 13 GND DRAIN 3 14 VCC DRAIN 2 15 CS DRAIN 1 16 SOURCE DRAIN