Hi
I wish to build a protection circuit for a single LiFePo4 cell battery.
Just wondering if BQ29700 have any issues with LiFePo4 batteries? The data sheet does not mention anything about LiFePo4. I do know that the Overcharge Detection (OVP) for BQ29700 is 4.275V, a bit high for LiFePo4, but I'm building BQ29700 with a 3.6V charger so it should be fine. But the major concern I have is the Over-Discharge Detection (UVP) 2.8V.
I want have a 3.0V UVP for my application. I'm building a handheld meter. The customer may use it once and leave it on a shelf somewhere for a few month, I want to have a higher cut-off so there's still some charge left for the battery to self discharge. Not utilizing the entire battery capacity is fine.
Is there an 3.0V UVP alternative to the BQ29700?
If 2.8V UVP is the highest I can get then I'll use 2.8V. Or can you guys give me a suggestion on implementing a 3.0V UVP protection circuit?
Cheers
Harry
