Other Parts Discussed in Thread: TPS2514A, BQ24195
I am looking to use the BQ24196 battery charger IC. I am getting a little confused. I have a requirement for a system that can
a) receive a dc adapter input to charge a LiFe cell
b) receive a USB VBUS i/p from to charge the above
c) power an external USB device via the VBUS pin.
I think the device mentioned above can perform this task. However, I am getting confused with how this is accomplished. I have no problem with understanding a) or b). Option c) is confusing me. The Data sheet seem to talk about VBUS as an input pin but seems to suggest in other application data that the battery via the boost facility can somehow supply power to the VBUS input line. The other thing I do not understand is what is the purpose of the PMID pin and what does this term mean, Power Module I-Dent pin. Does this connect to the USB ID pin?