Hi,
We are in a situation where we want to use two strings of 6S batteries, as the image depicts. We want to do the current and voltage measurements with a single MCU. We also want to connect the PACK- outputs of both 6S strings together.
Because of those said above, we cannot connect the MCU's GND and both of the BQ76925 GND pins exactly as depicted in the datasheet page 10 (the image insert is from page 3 of the same datasheet).
To overcome this issue, we thought of a possible solution (shown on the attached image), but are not sure whether it is a legal thing to do or not - it is this matter we would like to get some help in.
Some useful links:
Evaluation board documentation link: here
Getting started documentation link: here
Datasheet link: here
Thanks!
Istvan
