China (中文内容)
58V-255V 3 相交流输入、多输出反激式参考设计 PMP30495 (正在供货)
请参阅相关参考设计和其他 TI 资源的重要声明和免责声明
主要文档
- 58-VAC - 255-VAC 3-Phase Input Multiple Output Flyback Reference Design
(PDF 10624 KB)
2018年 12月 21日 (英文內容)
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描述
This offline flyback reference design uses the LM5021 controller to generate 3 isolated outputs (12 V at 705 mA, 12 V at 733 mA, 35 V at 25 mA) from an 3 phase AC input (58 VAC - 255 VAC). The DC input voltage range is between 100 V and 623 V. The design can provide 18-W output power. The LM5021 uses an optical coupler to regulate the 12-V output and to improve transient response. The controller operates with a fixed frequency of 100kHz.
特性
- 3 phase input, which allows a very wide input voltage range
- Achieves over 85% efficiency at high line
- Optocoupled feedback for constant voltage regulation
- Output overvoltage protection with latch, in case of loop opto fail
请参阅相关参考设计和其他 TI 资源的重要声明和免责声明
