Hi!
I don't undertand the following point:
Firstly, at page 5 of SLUA379E we can read :
"The hardware for calibration is also simple. One current source, one voltage source, and one temperature sensor are all that is required. The accuracy of the sources is not important, only their stability."
And then at page 6, we have :
"Because of the simplified single ground system in the bq20zxx family, each unit should be calibrated for board offset. Use the following function in normal mode to calibrate the board offset. During this procedure, the device under test must be powered from the cells only and no external load or charge current may be applied. Note that the function requires the sense resistor value in m Ω as an argument."
If you use your board HPA169 for calibration, the resistor R27 could be a problem ?
How we can use the HPA169 for "board offset calibration" ?
Best regards,
Said