前几天发表过一次 关于AFE 保护后 能不能自动恢复,但是有人知恢复说 只能reset,AFE保护后不能自动恢复。但是 我在想,终端客户拿到了电池,不小心短路保护了,想恢复 不是很麻烦。而且数据手册 里面明明写了恢复时间,为什么我新做的电池 在ASCC后不能恢复。
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请参考技术参考文档里的相关描述,如下:
In general, when a fault is detected after the Delay time, both CHG and DSG FETs will be disabled (Trip
stage), and an internal fault counter will be incremented (Alert stage). Since both FETs are off, the current
will drop to 0 mA. After Recovery time, the CHG and DSG FETs will be turned on again (Recovery stage).
If the alert is caused by a current spike, the fault count will be decremented after Counter Dec Delay
time. If this is a persistent faulty condition, the device will enter the Trip stage after Delay time, and repeat
the Trip/Latch Alert/Recovery cycle. The internal fault counter is incremented every time the device goes
through the Trip/Latch Alert/Recovery cycle. Once the internal fault counter hits the Latch Limit, the
protection enters a Latch stage and the fault will only be cleared through the Latch Reset condition.