Part Number:BQ27750
Hello TI team,
we currently work on a new design of an industrial powerbank (PB) with fuel gauge with following configuration:
4x 18650 Li-Ion cell in parallel (SAMSUNG, 3.6V, charge 4.2V nom,, 3350mAh/cell) >> total capacity 13.400 mAh
The PB should be w/o MCU. Therefore we are looking for:
- a completely standalone fuel gauge that stores all the data about the cell - I guess some kind of NVRAM - so it minimizes the need for MCU initialization when you wanna read it out (MCU is situated outside the pack)
- fuel gauge that can calculate remaining time (time to full, time to empty) based on a current charging/discharging rate
- logs cell aging
Idea is to have a battery pack with integrated standalone charger (PB) with I2C fuel gauge that you can read out externally (when docked) - MCU is on the docking station w/ graphic LCD => serves for analyzing powerbank state/condition.
Would you have a recommendation for the TI part? I used your selector and BQ27750 may be used but I prefer your advice. Can BQ27750 fulfill all our requested parameters? Does it contain internal NVRAM like BQ27411?
Thank you in advance.
With kind regards,
Daniel