STEVAL-ILL076V2 STMicroelectronics

S T E VA L - I L L 0 7 6 V 2 18 W wide input range ultra slim flyback converter using HVLED001A quasi resonant flyback controller and STD8N80K5 Data brief Description This board implements an offline power converter based on a single stage high-PF flyback topology using the HVLED001A controller. A very slim form factor is achieved with innovative magnetic componentry. The output voltage is controlled by the primary side, thus reducing the need for costly opto- couplers. The HVLED001A PSR precision and the innovative structure of the transformer makes for highly accurate output voltage regulation against load and line changes. Features A very high efficiency is obtained and a full set of Input voltage: Vin: 90 264 Vrms, f: 45 66 protections including output short circuit and input Hz overvoltage is included. Output power: Conducted EMI is pre-screened and clearances 18 W at wide input range and creepage distances adhere to EN60950 40 W at European input range safety requirements. Output voltage: 56 V 5 % High power factor, low THD Power factor and THD are optimized to be No-load: better than 400 mW at 230 Vin respectively higher than 0.95 and lower than 10% Full load efficiency: greater than 92 % at full load over the entire input voltage range. Short circuit protection with auto restart The main application for this converter is for bus EMI: pre-compliant with EN55022 (B) limits power supplies in a LED string driver providing 4 Safety: complies with EN60950 kV isolation. Dimensions: 183 mm x 28 mm x 17 mm PCB: single sided, 35 m, FR4, mixed PTH/SMD RoHS compliant September 2016 DocID029692 Rev 1 1/7 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram and bill of materials STEVAL-ILL076V2 1 Schematic diagram and bill of materials Figure 1: STEVAL-ILL076V2 circuit schematic GSPG0609161035SG 2/7 DocID029692 Rev 1