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TPS5430 自举电容选值错误导致烧IC

Other Parts Discussed in Thread: TPS5430

TPS5430,在环境温度60度,长时间工作IC烧坏。检查电路后发现自举电容的值选的0.1uF,规格书推荐是0.01uF。

修改后,通过测试。问题解决了,但是没想明白为什么,求助!