Hello,
I'm currently in the concept phase of a project and thought it useful to reach out and invite your recommendations (in addition to my ongoing research).
My design will feature a 5V DC barrel jack input (via external desktop PSU) with battery backup power, most likely to be a standard 3.7V Lithium Polymer cell, with the potential for x2 instances of this cell.
The primary supply will be the external desktop PSU, but upon disconnection, the battery will need to seamlessly keep the device powered, UPS-style as it were. The device typical operational current is expected to be ~3A.
The battery will need to be charged to capacity whenever the primary external PSU is connected, which is the principle mode of operation. It is not expected a high charge rate will be required for the battery.
Ideally, I'd like the control interface to be I2C, though I'm happy to consider Standalone also.
The only other consideration, this is likely to be a reasonably dense design, so a single chip solution would be great. I'm happy to consider two-chip solutions also though. Any recommended parts will need to have current availability from TI or other vendors as I'll be looking to put this design out for Manufacture within 4 or 5 weeks.
Many thanks in advance!
