BQ40Z80: Fuel gauge for N series 2 parallel battery pack

Joel Hazard

Part Number: BQ40Z80

Tool/software:

I am working on a design may require from 2 to 5 batteries in series in 2 parallel strings. Do you have a recommendation for a fuel gauge part for a this type of configuration?

Thank you

7 months ago

0 Adrian 7 months ago

TI__Mastermind 37761 points

Hello Joel,

I would recommend the BQ40z80. https://www.ti.com/product/BQ40Z80

Regards,

Adrian

0 Joel Hazard 7 months ago in reply to Adrian

Prodigy 20 points

Thanks Adrian. Would you use a BQ part for each serial string so each cell has a dedicated balance port, or treat the parallel cells as one cell?

0 Adrian 7 months ago in reply to Joel Hazard

TI__Mastermind 37761 points

Hello Joel,

No, the gauge would treat each parallel as one cell.

Regards,

Adrian

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BQ40Z80: Fuel gauge for N series 2 parallel battery pack