Hi teams
This is Gabriel Xu from South China OEM team. Nice to meet you.
An issue came up when my customer used BQ25890 in a new design.
The charger keep changing its operation mode from Hiz mode to Buck mode again and again.
In the meantime, the Vbus voltage is higher than Vbat+50mV and it shouldn't transient to Hiz mode i suppose.
Below are the waveform and schematic. I have checked the fault register, no fault have reported. Thanks in advance.