Part Number: DRV8302
hello,你好
我司采购的物料DRV8302DCAR date code:2432 芯片上电后门极电压过大(GH_B 和SH_B 波动到13V左右,实际应该为1.6V)
问题描述如下:
示波器探头说明
黄色—GH_A
蓝色——GH_B
绿色——SH_B
紫色——GH_C
(红色X代表电机线已断开)
测试发现GH_B 和SH_B 电压变为约13.6V(重新上电会变化,约±2V)
GH_A和GH_C 波形正常。
测试波形如下图
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