35W wide input range flyback converter using HVLED001A quasi resonant Flyback controller and STF10LN80K5 Design Note

DN0039, STEVAL-ILL069V2 is intended to provide a stable and insulated 48V voltage bus suitable to supply secondary side circuitry (e.g. LED current generators) for a total output power of 35W when a wide range of input voltages is applied at its input. An auxiliary 14V output is also present to supply small circuitries absorbing a maximum current of 20mA. A very high power factor is obtained thanks to HVLED001A features. Input voltage variations, excessive input voltage (overvoltage like Surge or bursts) or very low input voltages are managed by some of the HVLED001A protections, improving the reliability of the application. Output short circuit and overload protections are auto restart for a safe operation in lighting environment