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关于H桥芯片的L293D



我这边需要给一个电阻提供2个方向的连续电流,所以只能采用H桥模式搭建电路。但是我只能提供20V    400uA。我想问一下  这个L393芯片可以使用吗 如果不行,能不能各位大佬提供一款可供我使用的H桥芯片啊  谢谢!!!