Hi, I found several problems when using BQ25504, forgive my English expression.
1. I don't need battery overdischarge detection, ie VBAT_UV is not programmed and that pin is left floating. During charging, once the battery voltage exceeds the programmed VBAT_OK value, the VBAT_OK pin outputs a high level, which is sent to the enable pin of buck module. This all works fine. Since I don't need undervoltage monitoring, I short VSTOR to VBAT. When the solar power is disconnected, the VBAT_OK pin will never output a high level (VBAT=VSTOR=3V>VBAT_OK=2.5V). Is this normal situation? If I want to have the BQ25504 as a battery gauge without solar input, and judge by the output of the VBAT_OK pin. What should I do? Any help would be greatly appreciated.