SLUSE31A April 2020 – February 2021 BQ25968
PRODUCTION DATA
If the total loss is greater than desired for a single BQ25968 at the fast charge current, two devices can be used in parallel to reduce losses. The same design procedure is applied for the master and slave devices, with a few additional steps for parallel operation.
The master device is used for BAT current sensing, so the slave device should short SRN and SRP to GND.
The master device supplies the SYNCOUT signal to the slave, so connect pin A5 of the master to pin A7 of the slave device.
The master device controls the OVP FET (if used), so the slave device should connect VAC to VBUS.