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BQ34Z100-G1: Calibration during the manufacturing

Karlis Tucs
Expert 1385 points
Part Number: BQ34Z100-G1

Hi. I previously have asked questions about manufacturing process in this thread:https://e2e.ti.com/support/power_management/battery_management/f/180/t/616530 

  • Calibrated the voltage at a minimum. You can get by without calibrating the current and temperature, if you used the averaging method to set the calibration parameters in the golden file."

So , at the moment I have uploaded the srec file to gauge and it seems like it measures voltage more precisely than my multimeter - do I really need to do voltage calibration?

Also - what is the "averaging method" regarding the calibration of temperature and current?

Best regards,

Karlis Tucs 

  • 0
    TI__Intellectual 1365 points

    Hi Karlis,

    Voltage calibration is not must-do item if the measured voltage and reported voltage() has not a dfference.

     Some customers calibrate each Pack for higher accuracy and some customers write the average value to the calibration parameters instead in order to reduce the Manufacutring time in Factory, if the gauges on the customer's board has not a big variance. They calibrate around 20 ~50 samples and average those values to cover the other devices.  They create the golden file based on the average value and program it to all gauges without calibration. 

  • 0 in reply to Jasper Yi
    Expert 1385 points
    Thank you! I understand now.

    Best regards,
    Karlis Tucs