Hi team,
I would like to use the ADBMS6822 as a typical non-BMS system and would like to know how the termination circuit is designed, I can't find anything directly in the user guide and in the data sheet.
The Eval Board uses a BMS Transformer and the CMC is not fitted. Is there a hardware guide for this or something similar?
Hello,
Here is detail information about termination circuitry in the Eval board.
R27/C6 and R26/C8 are filters for isoSPI pins.
R28/R29 and C9 are termination resistors and a termination capacitor, respectively.
D8/D10 are TVS diodes for surge protection. If you don't expect any surge in your system, they are not necessary.
R30/R32 are surge resistors. Again, you can remove them if you don't need them. If they are removed, then please use 51R for R28/R29 to match characteristic impedance.
T4 is a CMC, and it is optional.
T1 is a transformer for isolation.
Here is the requirement for the transformer:
1. Lprimary_min >= 100uH
2. Lleakage_max <= 1.5uH
3. Ratio = 1:1
If you have further questions, please let me know.
