The BQ25960 is a 98.1% peak efficiency, 8-A battery charging solution using a switched cap architecture for 1-cell Li-ion battery. This architecture allows the cable current to be half the charging current, reducing the cable power loss, and limiting temperature rise. The dual-phase architecture increases charging efficiency and reduces the input and output cap requirements. When used with a main charger such as BQ2561x or BQ2589x, the system the system enables full charging cycle from trickle charge to termination with low power loss at Constant Current (CC) and Constant Voltage (CV) mode.

The device also operates in bypass mode charging the battery directly from VBUS through QB, QCH1 and QDH1 in parallel with QCH2 and QDH2. The impedance in bypass mode is limited to 21 mΩ for 5-A charging current.

The device supports dual input power path management which manages the power flowing from two different input sources. The inputs selection is controlled by host through I²C with default source #1 as the primary input and the source #2 as the secondary source.

The device integrates all the necessary protection features to ensure safe charging, including input overvoltage and overcurrent protection, output overvoltage and overcurrent protection, temperature sensing for the battery and cable, and monitoring the die temperature.

The device includes a 16-bit ADC to provide bus voltage, bus current, output voltage, battery voltage, battery current, input connector temperature, battery temperature, junction temperature, and other calculated measurements needed to manage the charging of the battery from the smart wall adapter or wireless input or power bank.