Tool/software:
Dear Jonny
Thank you for your reply.
This is a continuation of below URL.
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1393867/bq27z561-r2-for-enhanced-resolution-gauging-for-low-current-applications-using-scaling
We interpreted this to mean that even if you increase the resistance of RSENSE to increase the resolution, the calibration current value is still calibrated with the actual current value.
So far, we set calibration current value at 2000mA when we have used 20mOhms for RSENSE and have drawn a current of 100mA.
And, following the application note (SLUA792) we set the design capacity to 8000mAh for a 400mAh battery.
We tried the current calibration by setting the calibration current value to the actual current value (100mA).
Result, the CC gain and the Capacity Gain became "20" mOhm.
Those values are outside the setting range described in the Technical Reference Manual (SLUUC54C).
Is it okay to use this value ("20" mOhm)?
(When the calibration current value was 2000mA, the CC gain and the Capacity Gain was become "1" mOhm.)
Best Regards,
