Other Parts Discussed in Thread: BQSTUDIO, TPS65631W, BQ25155, EV2400
Hello:
Currently, when debugging BQ25150, I encountered two problems as follows:
1.Most of the time, the PMID foot will output the voltage value close to the VBUS. Use bqstudio to change the ICHG_CTRL and ILIMCTRL values.The PMID was restored to around VBAT+ 0.2v。
Q: why is the VBUS voltage output?Why does changing both values affect PMID?
2.VDD, LDO and PMID are not output each time the battery is separately inserted, and I2C cannot communicate.Must insert the USB to restore normal, again unplug the USB is still normal。
Q: why does this happen?How do I operate the external configuration to power the battery alone?
Thank you very much.
YiTian.