使用 HVLED001A 准谐振反激控制器和 STF10LN80K5 设计说明的 35W 宽输入范围反激转换器

使用 STMicroelectronics 的 HVLED001A 的参考设计

设计简介

DN0039、STEVAL-ILL069V2 旨在提供稳定且绝缘的 48V 电压总线，适合为次级侧电路（例如 LED 电流发生器）供电，当在其输入端施加宽范围的输入电压时，总输出功率为 35W。还提供辅助 14V 输出，为吸收最大 20mA 电流的小型电路供电。由于 HVLED001A 的特性，可以获得非常高的功率因数。输入电压变化、过高的输入电压（过压，如浪涌或突发）或极低的输入电压均由某些 HVLED001A 保护功能进行管理，从而提高了应用的可靠性。输出短路和过载保护自动重启，确保照明环境下安全运行

说明

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