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TPA3221 PVDD 烧毁

na mo
Prodigy 10 points
Other Parts Discussed in Thread: TPA3221

1.适配器供电:25V ,5A.  PVDD：25V,  4欧 喇叭,作  BTL，AUX+line +蓝牙 输入.  

状况1：播放音乐信号正常, 烧机正常, 但在不断重复拔插3.5mm line 输入时 ，TPA3221 PVDD ,经常被烧毁.

烦请帮你们确认一下 原因。TPA3221 pvdd 烧毁.pdf