I have some issue about BQ25887
First of all it looks like SNS pin is connected to boost converter output so I thought I can power the system from SNS pin and BQ25887EVM schematic support my idea. Is it possible.
Secondly in BQ25887: Where is the chapter "8.3.10 Battery protection" of the datasheet ? topic from forum it says "When the battery is discharged below VBAT_SHORT_HYS, the BATFET is turned off to protect battery from overdischarge" where is the BATFET? BATFET is controlling the SNS output? if not which pin is controlling by BATFET? What is the VBAT_SHORT_HYS value? I can not found any information about that.
I try to test Over-Discharge protection with BQ25887EVM. I connect my load to j2 connector and discharge the 2s Li-Ion battery with 1.7A. I thought when the Vbat discharged below 6.2V, SNS output will not power the load anymore but it did. I wait until 5.2V but it was still powering the load. What was wrong my system.
Thanks for your attention.