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LM5008MM输入92V烧毁,输入48V正常

Other Parts Discussed in Thread: LM5008

用LM5008做个小电流DCDC,12V输出,现在输入接48V,一切正常,输入如果接92V,芯片就烧毁了。

每次损坏的位置都一样,输入电压不是写的100V吗,为什么92V就烧了。