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Measure present current with bq34z110

Anmol Sarma
Prodigy 20 points

I am able to sense the present voltage and state of charge of a lead acid battery using the BQ34Z110EVM. The datasheet only shows the AverageCurrent() command to sense current. The evaluation software however also has a field that shows the present current through the sense resistor.

Is there a straight forward way to sense the present current flow using an I2C interface? 

  

  • 0
    TI__Guru 73830 points

    Anmol,

    the instantaneous current can be read with a Control subcommand. Please see page 10 of the datasheet. You can refer to this e2e forun ink for examples of reading a Control subcommand.

    http://e2e.ti.com/support/power_management/battery_management/f/180/p/213060/820268.aspx#820268

    Regards

    Tom