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LMG1020EVM-006将FET换成EPC2212出现板子烧掉的问题

Other Parts Discussed in Thread: LMG1020

Dear All,

高压是70V,脉冲信号是20KHZ,100ns(LMG1020的SPEC上脉冲信号是1MHZ,50ns,高压最高可以是75V),把FET换成EPC2212出现并联电阻烧掉,LD损坏的问题,下图是原理图,烦请帮忙查看一下问题的原因。