SLUSDL9A June 2019 – January 2021 BQ25125
If the charging current falls to zero and the system load current increases beyond the programmed input current limit, the voltage at PMID reduces further. When the PMID voltage drops below the battery voltage by V(BSUP1), the battery supplements the system load. The battery stops supplementing the system load when the voltage on the PMID pin rises above the battery voltage by V(BSUP2). During supplement mode, the battery supplement current is not regulated, however, the short-circuit protection circuit is active. Battery termination is disabled while in supplement mode.