Hello all,
I apologize as I might be asking a bit much of the community, but I want to build a battery pack and have some design requirements and just need some pointers to get the ball rolling. I have looked around all over TI's website and parts and reviewed a few other threads on here, but still scratching my head.
I would like to build my own battery pack based off of 4 LiFePO4 cells. The solution does not need to control the charging of the cell as that will be taken care of externally through a CC/CV algorithm on a LTC4020 based solution.
Requirements:
4 series LiFePO4 cells
Cell balancing
Able to sustain 10Amp discharge and (if possible) charge rates
Support voltages 10V - 14V (this is ideal working range, protection thresholds may differ some)
LED meter for remaining capacity preferred
Interface for external MCU interaction preferred
15Ah capacity
These are the cells I plan to use: www.headway-headquarters.com/.../
I think that was all my requirements. I have looked in to the bq2084-v143 and companion part bq29312A. However, the latter is in the NRND status and am not sure about the compatibility of the bq76920. Additionally, the datasheet doesn't mention anything about LiePO4 cells, are they compatible?
Again, I am rather new at battery packs and am willing to learn, I just need a little kick-start. All suggestions are welcome.
