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BQ24620布局问题



重新做了一个板子,原理图 PCB如下,14 15  13脚在没加MOS管和电池的时候波形如下,问,正常的波形是这样吗,我调出来的那块板子同等实验条件下,14  15脚波形为直线6v左右,请问那个波形是正确的,最好给出1415 脚波形图