I had one question about the output current report problem (not accurate) with the TPS40400.
The test board is TPS40400EVM-351, therefore the current sense element is the inductor’s DCR.
Please refer the inductor spec as below table.
The below table is my configuration and test result.
- The setup value on “Fusion Digital Power Designer”.
2. The test result
Would someone help to give us some suggestions that would get more accurate output current through PMbus?