I'm designing a power distribution system, for connection an auxiliary battery to my system.
The idea is to use a power distribution mux, similar to TPS2124 from TI. I want to be able to control the switch-over from my uController:
The problems I have is the following:
- Vsupply can range between 5-36V, which the TPS2124 cannot handle.
- Current output of the power mux should be up to 5A
- I want to control the switch over, but if Vsupply is removed, then the system should automatically switch over to the auxiliary battery
I'm unsure if this is the best solution or if there is a single chip solution that can handle the charging requirements as well as the option to switch over from the uController.
Looking for inputs on the design.