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DRV8302: 两颗DRV8302不能同时工作

Gu Xiaolei
Prodigy 50 points
Part Number: DRV8302

        你好，我在PCB上布置了两颗DRV8302芯片，电路与数据手册的参考电路几乎一致。发现靠近电源的一颗可以正常工作，远一些的一颗将其EN_GATE打开(pwm=1模式)，且当INH1、INH2、INH3都为0时测得所有的GH引脚和所有的SH节点处的电压均为6V左右。而正确的应该是以上电压均为0V才对。请问这可能时什么原因导致的呢？