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DRV8803: DRV8803无输出

Part Number: DRV8803

Hi TI专家,

     目前先简单设计了一版测试用demo板,控制4个LED灯亮灭,目前输入引脚给5V控制信号,输出没反应。请帮忙看下,这样原理图是否有问题,输入的话,需要输入什么信号,多谢。