项目需要充电时间大于10小时，而bq24610最大充电时间为10小时。手册提到：
The TTC pin may be taken LOW to disable termination and to disable the safety timer. If TTC is pulled to VREF,
the bq24610/7 will continue to allow termination but disable the safety timer. TTC taken low will reset the safety
timer. When ACOV, VCCLOWV and SLEEP mode resume normal, the safety timer will be reset.
TTC拉高和拉低这两种情况有什么区别不懂，谁能讲解一下。
