I'm looking for an SMBus charger that not only charges a Li-Battery (3 cells, 2A charging current) but also handles the power path from the battery to the system.
It should work autonomously meaning with as little microcontroller interaction as possible. Input will be in the range 20-24V and may be fixed to one of these voltages)
The IC (or module, meaning IC plus MOSFETs etc.) should be as small as possible (within reasonable costs).
Unfortunately I see no way to specify all of these requirements in the parametric search, can you help me chose suitable products?