EVAL-PSR01B-35W STMicroelectronics

EVAL-PSR01B-35W 35 W wide input range flyback converter using HVLED001B quasi resonant flyback controller and STF10LN80K5 Data brief fold-back feature that, contemporarily, reduces the output voltage ripple at light load. Output short-circuit and overload protections are auto-restart for a safe operation in lighting environment. Extremely low input power is there at no load conditions. Features Input voltage: Vin: 90 - 265 Vrms, f: 45-66 Hz Output voltage: 48 V / 730 mA High power factor, low THD No-load: better than 150 mW 230 Vin Average full load efficiency: 90% Short-circuit protection with auto restart Safety: Acc. to EN60065 EMI: Acc. to EN55022 - conducted emissions Description The EVAL-PSR01B-35W is intended to provide a stable and insulated 48 V voltage bus suitable to supply secondary side circuitry for a total output power of 35 W when a wide range of input voltages is applied at its input. A very high power factor is obtained thanks to HVLED001B features. Input voltage variations, excessive input voltage (overvoltage like surge or bursts) or very low input voltages are managed by some of the HVLED001B protections, improving the reliability of the application. The efficiency of the application is very high even at very low load thanks to the improved frequency October 2018 DB3733 Rev 1 1/5 For further information contact your local STMicroelectronics sales office. www.st.comBoard description EVAL-PSR01B-35W 1 Board description Figure 1. Jumpers and connectors location EVAL-PSR01B-35W J2 J1 VAC VOUT GND VAC 48V 90Vac to 265Vac 730mA 2/5 DB3733 Rev 1