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LM5088电源芯片,老是烧。输出电压和电流正常,



我现在用LM5088MH做的,输出13V10A的,现在电压和带载都正常,就是芯片,老是烧掉。温升很高。另外,输入的电容,发热严重。现在急需出样品,哪位能支持下吗。QQ:343890115.TEL:13839541903

  • 亲;你用多大的MOSFET?能否测一下SW脚波形?亲;这种电源输入电容,需要用低ESR品种,通常还需要用X7R介质的贴片电容接在桥口。否则;由于电解的寄生电阻会因高频电流而发烧。

    亲;恕我直言,建议你需要改板后再出样。