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UC2845 严重发热

Other Parts Discussed in Thread: UCC27531, UC2845

1、供电工业三相380V,反激式开关电源用2845或2844,2845供电电源为13.2V,室温15℃,测量芯片温度75℃,领导让降下来,怎么降?

2、测量2845供电电路为25mA,手册上的表格是不超过15mA,求解?