Part Number:bq76940
Hi Engineer,
My customer has some questions on the BQ76940 spec and circuit design.
1. What's the Max balancing current Bq76940 could support with external balancing circuit?
2. on datasheet p.30, is the cell balancing could be synchronous at the same group?
Or for example could VC1,3,5,7,9,11,13,15 could balancing at the same time?
3. at EVM user guide p.56, if I would like add a 12V external voltage source with parallel to the battery source and enter the REGSRC.
Could I design the circuit with adding an extra diode like the picture below? or do you have another suggestion if there is any risk?
the purpose of this design is to decrease the power dissipation from battery once there is an adaptor input.
4. Is the BQ76940 internal digital core(MCU) powered by REGSRC or battery?
there are a lot of questions, looking forward to your reply, thanks.