Battery Management Products - High Charge and Discharge currents

David Robinson

Other Parts Discussed in Thread: BQ40Z80, BQ34Z100-G1, BQ40Z50

We have a Lithium-Ion Smart Battery application that is a 4 series with 50 batteries in parallel for each group in series. The continuous charge current is 82.5 A and the continuous discharge current is 125 A. Please recommend a gauge IC.

over 4 years ago

0 Wyatt Keller over 4 years ago

TI__Guru** 105590 points

Hello David,

I would recommend using the top of stack gauge bq34z100-g1 if you only need a gauging solution. If you need more functionality, you can look into the bq40z50 or bq40z80 for protections/cell balancing, but the discharge current may be too high for them to scale.

e2e.ti.com/.../550004

Sincerely,

Wyatt Keller

Power management

Power management forum

Battery Management Products - High Charge and Discharge currents