Other Parts Discussed in Thread: MSPM0G3507, BQ76952, BQ76905
Tool/software:
The MSPM0 Gauge L2 can provide a leading long time SOC accuracy by utilizing a data fusion method to combines the SOC information sourced from coulometer (Current) and OCV (Voltage). This algorithm can also automatically compensate for cell aging, temperature, and current rate while providing accurate state-of-charge (SOC) in percentage (%) over a wide range of operating conditions.
Here is the summery of the MCU resource requirement for this Gauge L2 algorithm.
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Single cell |
Multi cells |
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Flash |
Optimization level 0: ~14.8k Optimization level 1: ~13.6k |
Optimization level 0: ~14.8k Optimization level 1: ~13.6k |
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RAM |
1.54k |
2 cells: 2.04k 3 cells: 2.54k N cells: 1.04k + 0.5*Nk |
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Algorithm running time based on M0L |
3ms |
N*3ms |
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Suitable MSPM0 platform |
MSPM0L, MSPM0C, MSPM0H, MSPM0G |
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Examples |
MSPM0L1306 Gauge board + 1 LiCO2 battery MSPM0G3507 Launchpad+ BQ76952 EVM + 4 LiFePO4 batteries MSPM0L1306 Gauge board + BQ76905 EVM () |
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Here is the MSPM0 Gauge L2 development Package: Gauge Level2.zip
Here is the Link of the App note: https://www.ti.com/lit/slaaef5