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LM3445 并联多会炸机

Other Parts Discussed in Thread: LM3445

请教各位大神:

         我们用LM3445 非隔离调光电源灯泡 已好几年一直没问题,可今年有客人用我们灯泡200~300PCS一起并联使用时,却时不时的会炸机,并且不断。拆看看,是前端MOS炸飞同时大部分IC也炸了。我们初步分析可能是多个并联调光时调光器尖峰大,导致电源炸机,但又无法到客人端测试看,所以在此先请教各位大神可有过这样的经验 或见解,请多多指教!!