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follow up to LiMNO2 support for bq34z100

Perry Frogge
Intellectual 370 points
Other Parts Discussed in Thread: BQ34Z100

Any word as to if this update will be out this year?

Thanks

Perry

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Timothy,

We do not currently have a gauge that can support LiMNO2 accurately. We are working on a new algorithm to support this chemistry, but it will not be available until late 2013. It will be developed on the bq34z100 platform.

Best regards

Tom Cosby

  • 0
    TI__Guru 73830 points

    Perry

    The bq34z100 is a released device and it should be able to support the discharge curve for LiMNO2 cells. You can use the CE pin to disable the device when you are no gauging. The gauge should run a capacity simulation when the Chip Enable is returned to a high state.


    Tom

  • 0 in reply to ThomasCosby
    Prodigy 40 points

    Tom,

    I am kind of new this so forgive me if this is a stupid question. 

    I don't see mine any LiMNO2 batteries in the bqChem software?   Does this mean I would need to use the procedure and Mathcad paper to determine the proper chemical id?

    The battery I am trying to use this with is a BA-5390A/U from Ultralife corporation.

    Also, could you elaborate or refer me to something explaining the "capacity simulation" you mention.   I don't see anything in the data sheet about it.

    Regards,

    Ross

  • 0 in reply to Ross Lintelman
    TI__Guru 73830 points

    Ross,

    This cell has not been characterized to create a ChemID, so I will contact you off-line to provide details as to what is required to create one. The device will measure the Open Circuit Voltage when it is reset (such as at power-up) and run a capacity simulation to estimate how much capacity is remaining in the cells.

    Regards
    Tom