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LM3481的短路保护不起作用

Other Parts Discussed in Thread: LM3481

电路采用的反激式,输入电压为12V,输出电压为12V/1A,当LM3481做短路测试时,输出二极管的温度急剧上升到130摄氏度(输出二极管的参数为3A,100V),并且流过二极管的电流为6A,电流检测引脚的电压超过220mV,短路保护没有起到相应保护作用。