Part Number:BQ34110
I am in the process of selection a fuel gauge for a Lithium Phosphate battery pack.
The battery pack is 2S2P (26 mm cell Lithium Phosphate iron 3.2 V and 3.4 Ah), the 2S2P battery pack will be 6.4V and 6.4 Ah.
This battery pack will power a device with Step motor which produce a dynamic current profile (spike) from 100 mA to 2.5 A.
I went to Ti website for the selection of fuel gauge and narrowing down to the following 4 selections:
May be you provide insight to navigate the selection, want to seek your expertise to make sure that I am not missing key parameters due to cell chemistry dependency.
Only BQ34110 mention Coulomb count
For this chemistry, which is better for accuracy Coulomb count or Impedance tracking etc..?