Other Parts Discussed in Thread: BQ27Z561-R1, BQ35100, BQ27426
Hello Battery Gauge experts,
we are using either LiPo rechargeable or coin-cell battery with max capacity 50-60 mAh. Therefore, looking for a suitable gauge:
1- Lowest possible current consumption from the gauge - EDIT: BQ27220 in sleep has 9uA which is way too much for us.
2- Small size. We have severe size limitations.
3- If possible, the model(s) to work with different cell chemistry. If not - then two different candidates will work as well – one for rechargeable LiPo, the second for non-rechargeable;
4- As seen from above, the max battery capacity is in the range of 50-60 mAh. - Is that OK if we use scale factor 10x (like described in user guide for a different gauge, sluuap5a.pdf, point 6.1)
We were looking into BQ27220 (it could also act as coulomb counter, with EOS algorithm on the MCU) - but we would need a lower power recommendation(s).
Thanks a lot