This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DRV104 的驱动能力是多少? 发现驱动不对



一个40mH,30欧左右的电磁铁,24V供电。 最初的强制满电压的驱动是对的,后面的PWM驱动时,电压峰值只有10V左右。同时测量boot端的电压,发现其只比输出电压高了约2V,并且输出关闭时,它也直接变为0了。感觉问题就是boot电容两端电压不足引起,但资料里对这电容的描述和boot的要求写得不多。不知何故。