Is it possible to pre-program the BQ25120 with a Vsys voltage other than 1.8V and then remove power from the device and have the register settings be saved.
Is the memory non-volatile?
Otherwise, how can a system that requires anything other than 1.8V from Vsys, program the BQ25120 over i2c from their MCU, if it can't boot from the default setting of 1.8V?
Joe Howard