Other Parts Discussed in Thread: BQ25730, BQ25720
Tool/software:
Dear TI Forum
I wanted to ask a question concerning a battery charger design I am conducting atm.
The gauge shall be the: BQ28Z610-R1, as (as I understand) it should work with the BQ25730 charger as it can
broadcast for I2C chargers.
Initially I wanted to do all the work via an MCU, reading the gauge, and inputting the desired commands
at the charger.
Now I changed the design to "Autonomous Battery, via broadcast from the BQ28Z610-R1.
The questions that arise:
- Can I still feasibly communicate with the charger and the gauge via the MCU's I2C (the gauge is now master).
- Do I still need to trigger the charging manually? To communicate with the gauge, I can at least send a pulse from the MCU to the PACK pin.
- Is this charger/gauge combination ideal? I did not find any reference designs or docs of this or similar chargers in
combination with a gauge fro single cell applications. I would also be open to change gauge or charger (as example to the BQ25720 (SMB))
- Most important: How can I get the battery values to my microcontroller (charge, voltage, current) without intruding into the system
of charger and gauge?
- Is there a handy step by step doc. like schematic checklist or similar?
Kind regards
Michael Gilgen
