Other Parts Discussed in Thread: BQ24295
My customer and I were looking at this app note: https://www.ti.com/lit/an/sluaa94/sluaa94.pdf
The project he is working with wants to use a 5V 3A wall power adapter. The question we are trying to figure out is if the system needs a 5V, 3A adapter and someone tries to use a 5V, 1A adapter for instance, can the part indicate that there is an issue so the system MCU can send a warning?
Looking at the app note mentioned above the BQ24295, and BQ24297 can both handle 3A for specific applications but can the indicate this type of system "fault"? My limited understanding is that when a device is plugged into over USB there is an enumeration that occurs and a power level is negotiated. Can all of our USB charger devices relay the negotiated charge current to the system MCU? And then if the negotiated charge current it is lower than the desired 3A the micro can send a warning? Please correct me if my basic understanding above is incorrect.
We are open to other devices, mainly just trying to figure out if this is something all devices can handle, if only some can do this, or if we need to find another way to solve this system level possible issue.
Thanks in advance!