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BQ25895EVM-664: BQ25895EVM-664

Part Number: BQ25895EVM-664
Other Parts Discussed in Thread: BQ25895, BQSTUDIO, EV2400


I bought the BQ25895EVM-664 and trying to get know the charger(BQ25895) settings.

but at the program there is a lot name shortcuts witch i cant find any explanations for them .

second, is there any guide to integrate between the charger and the batterys fuel gauge?




  • Hey Michael,

    The EVM and associated BQStudio GUI are all referenced back to the datasheet of the BQ25895. I would recommend looking through the register map of the datasheet as a first pass to get familiar with the nomenclature of the charger and its associated functions.

    You can refer to section 8.4 Register Maps in the datasheet.

    Also, a majority of the charger's functions will be different from the gauge's functions and naming conventions as they perform different tasks. Some commons names exist as they relate to generalized battery parameters and specifications.

    Joel H
  • Hey Joel,

    First thank you for your A.
    second, do you know how can i integrate between the charger and my batterys fuel gauge?
    i have I2C to connect between them but cannot control both of them together.


    Michael Chanukayev
  • Hey Michael,

    If you are trying to evaluate the charger and the gauge on their respective EVMs, you will need two EV2300 or EV2400 communication modules, and then open two instances of BQStudio, one for charger, and one for the gauge. You cannot use the same communication module to talk to both devices at the same time.

    Now, if you design your own board OR if you use your own host controller MCU, the I2C protocol allows multiple slave devices on the same bus, with the single master being your host controller MCU.

    Joel H