我们使用的是Phase/Enable Mode,如下图,可否将H桥的MOS管全部关闭,来维持住电机上的电压?我们尝试按照真值表,将M1拉高,xENBL拉低,但是通过示波器抓取电机两端的波形,电压非常快就被拉到0V,似乎Z的高阻状态没起作用
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芯片其他引脚按照数据手册9.2 Typical Application 或者评估板手册的原理图也连接好,再重新测一下。