BQ25890: BQ25890 OTG问题

您好，

If the boost mode current limit set in REG0A response time is too slow to prevent the battery voltage from dropping then there is not much which can be done from the perspective of the charger IC.

Also section 9.2.14.2.1 on page 31 of the datasheet outlines the BQ25890s response to a overcurrent event. It is expected for the charger to briefly cutoff the path to the OTG device. 

The BQ25890 is only rated for OTG current up to 2.4A. You will need to determine a way to soft start or limit the current draw from the OTG device.