Multicell Li-Ion and Li-Pol Battery Gas-Gauge using BQ275xx

Chappell

Other Parts Discussed in Thread: BQ27501, BQ27200

Can you use a BQ27501 on a 2-cell Lithium like the BQ27200? Just divide the battery voltage in half and buffer tothe chip.

over 16 years ago

0 Ming Yu over 16 years ago

TI__Expert 4050 points

we are working on some 2S1P solution for bq275xx device, preliminary check out has shown pretty good accuracy. I am working on the final app note but i is not officlay released. yes, you can use a voltage divider and buffer to the bq275xx with some what accuracy dgradation but not much. There is no cell balancing in this configuration.

Thanks

Ming