EVAL-PSR01B-35W

35W wide input range flyback converter using HVLED001B quasi resonant flyback controller and STF10LN80K5 is intended to provide a stable and insulated 48V voltage bus suitable to supply secondary side circuitry for a total output power of 35W when a wide range of input voltages is applied at its input. A very high power factor is obtained by 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 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.

• Input voltage range from 90 to 265Vrms, f: 45-66Hz
• Output voltage is 48V / 730mA
• High power factor, low THD
• No-load better than 150mW at 230V Vin
• Average full load efficiency of 90%
• Short-circuit protection with auto restart
• Safety according to EN60065
• EMI according to EN55022 - conducted emissions