MAX17262
Production
The MAX17262 is an ultra-low power fuel-gauge IC which implements the Maxim ModelGauge™ m5 algorithm. The IC monitors a single-cell battery pack and supports...
Datasheet
MAX17262 on Analog.com
MAX17201
Production
The MAX1720x/MAX1721x are ultra-low power stand-alone fuel gauge ICs that implement the Maxim ModelGaugeâ„¢ m5 algorithm without requiring host interaction...
MAX17201 on Analog.com
I've been trying to use the MAX17262R with an LiSOCL2 battery, as it was mentioned that it was possible in this thread RE: MAX17262 INI model for LiSoCl2 .
According the the thread above I can follow the application note for primary cell's for the MAX17201 fuel gauges. According to the application note I should expect the LSB on the QL register to be;
LSB=5*uVh/Rsense/2^16
LSB=5/(7x10^-3)/2^16=0.010899135
So according to this I should expect that the LSB for the QL register should be 0.010899135mAh? So if I see a 100 count change in the QL register I would expect that to be 1.09mAh?
The reason I'm questioning this is when I apply this LSB to the difference in count over a period of time it disagree's with the Nordic PPK2 by ~2 orders of magnitude. So it seems like I've gone wrong in my calculations somewhere. How do I calculate this correctly?
Some other useful notes;
- When I check the instantaneous average current or Vcell register the values seem to make sense and agree with the Nordic PPK2, so it seems like it's a problem with my calculations not the hardware.
