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进入ship mode之后,无法唤醒



  1. 该芯片在我司产品的应用中,在mr引脚增加了一个1000pf的电容,部分产品的mr引脚的电压偏低,比正常情况低个2V,芯片在进入ship mode之后,无法通过mr正常唤醒,此时的sys及ls/ldo引脚的阻抗只有20Ω,只有去除电容才能恢复正常,但是电容本身其实也没发现什么异常,所以芯片在什么情况下会变成和上述情况一样?