I am looking for a solution to measure SoC and voltage of a battery pack that is made of three in-series connected LiFePO4 cells. Charging functionality is not required. I expect to have over-current, over-temperature, over-voltage, short-circuit and under-voltage protections as well as cell balancing feature implemented. A solution should be able to cope with short high current spikes and extreme ambient temperature variations.
I have a few questions:
- I have found the following ICs that supposed to fit my requirements. What would be the advantages/disadvantages of each, i. e. how to choose between them? Are there any other ICs that I have missed?
- I will be using A123’s ANR26650M1-B cells. Battery Management Studio lists three chemistry options for that particular cell: “26650M1B (2500mAh)”, “ANR26650M1-B (2500mAh)” and “ANR26650M1-B Consult TI before use (2500mAh)”. How should I choose the right one?