SLUSA75B July 2010 – January 2020 BQ24650
The BQ24650 monitors the charging current during the voltage regulation phase. 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 (1/10 of fast charge current), as calculated in Equation 5:
A new charge cycle is initiated when one of the following conditions occurs:
The TERM_EN pin may be taken LOW to disable termination. If TERM_EN is pulled above 1.6 V, the BQ24650 allows termination.