Hello,
I have a design pending centered around the BQ25703a IC and I am interested in the following;
As per the evaluation board, adapter can be disconnected using CHRG_OK pin.
However, the IC senses the adapter voltage trough the VBUS pin.
My question is;
If we "hook up" the CHRG_OK pin to OTG mode (REG0x01[3] = 1), would the adapter be able to read the input voltage after leaving OTG mode?
To rephrase;
entering OTG mode, CHRG_OK pin goes HIGH and cuts off the adapter.
After leaving OTG mode, does CHRG_OK go low, enabling the IC to see if the adapter is hooked up?
This is a part of my schematic (values still not defined):
Could EN_OTG_MCU and EN_ADPT_MCU be converted to a singe complementary CHRG_OK line controlled by the IC?