BQ24610 电池充满电后指示灯不转换

现在我们用BQ24610做了4电池充电器，充电过程中没发现什么问题，先恒流后恒压都是我设置的值工作。但在电池充满电以后，芯片的STAT2不会拉低起到指示作用。电池充满确定是充满的，因为输入有功率检测。

请问TI工程师这会是什么原因导致这种现象，急！

你的判断充满的条件和Bq24610判断充满的条件不一致造成的，STAT转换肯定是以IC自己的判断为准的！

The bq2461x monitors the charging current during the voltage regulation phase. When VTTC is valid, termination
is detected while the voltage on the VFB pin is higher than the VRECH threshold AND the charge current is less
than the ITERM threshold

当然也要注意你的设计没有禁用充电终止判断功能先！

The TTC pin may be taken LOW to disable termination and to disable the safety timer. If TTC is pulled to VREF,
the bq2461x continues to allow termination, but disables the safety timer. TTC taken low resets the safety timer.
When ACOV, VCCLOWV, and SLEEP mode resume normal, the safety timer is reset.

楼主的故障解决了吗  是什么原因造成的