Can the MC33775A measure negative voltages, such as -2.78V, -3.33V?

[songhongyujl]

I have two questions.
1. In the MC33775A datasheet, "Supports bus bars with ±5 V input voltage",can it be interpreted that it can measure negative voltage (such as -2.76V,-3.33V)?
2. What is the maximum number of MC33775A chips that can be connected in a daisy chain?
Thanks!

[ErikaC · Accepted solution]

Hello,

It is possible that the voltage across the busbar is negative. The cell terminal inputs (CTx pins) of the MC33775A can handle negative voltages of up to −5 V. The cell balancing inputs (CBx pins) however can handle only −0.3 V.

MC33775A supports up to six daisy chains and 62 nodes per chain, please find more information in Application note AN13281

[songhongyujl]

Thanks!!