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Original question:

BQ40Z80: EC3,EC2,EC1,EC0 error

BQ40Z80: 2S configuration

Fabrizio Raggioli
Intellectual 360 points
Part Number: BQ40Z80

Hi,

I had a problem on the first issue of a board to support a 2S config.

I misunderstood the datasheet and during the test I found the voltage cells between VC6 and VC1 (No on VC2).

I'm releasing the new version based on the following schematics (2nd issue).

Can you confirm that the connections to the cells are correct for a 2S cells battery configuration?

Thanks,

Fabrizio.

  • 0
    TI__Guru** 105600 points

    Hello Fabrizio,

    It looks correct to me, just make sure you have the grounding paths correct so the current flows through the sense resistor. The connection sequence can be found in the EVM users guide as well.

    Sincerely,

    Wyatt Keller