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使用TPS22966控制双向供电问题

Other Parts Discussed in Thread: TPS22966

设计了用tps22966控制给小电机(5V)供电,把两路输出接到电机供电上,想实现电压双向控制:

output1输出5V,output2输出至地。

output1输出至地,output2输出5V。

现在发现这样控制不起作用,测了下输出至地的output好像没有实现电流回路至地的功能,对芯片理解不深,想问下问题出在哪