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求助,TPS92515HV用48V输入上电直接烧掉,直接再换一个其它元件都没

Other Parts Discussed in Thread: TPS92515HV

Hi 

   求助,TPS92515HV在24V输入带载都正常,慢慢把输入电压调到48V也没问题,SW波形也都没问题,但用48V开机上电就烧掉TPS92515HV,请问是怎么回事?

 重新换一个TPS92515HV后,在24V上电又可以正常工作,说明只是IC本身烧掉,其它元件都没损坏,但用48V开机空载又继续烧掉,请问是哪里问题?