用tx810接收超声回波信号,管脚VN采用-5V供电,最大电流需要多少安?我用输出1A的-5V电源给一片tx810 VN管脚供电,该电源输出电压稳定在-5V,当同时用该电源给两片tx810 VN管脚供电时,该电源输出电压输出电压约-2V左右,可能是什么原因呢,是1A电流不够吗?
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用tx810接收超声回波信号,管脚VN采用-5V供电,最大电流需要多少安?我用输出1A的-5V电源给一片tx810 VN管脚供电,该电源输出电压稳定在-5V,当同时用该电源给两片tx810 VN管脚供电时,该电源输出电压输出电压约-2V左右,可能是什么原因呢,是1A电流不够吗?