We checked Iout warning and Fault detection threshold accuracy with TPS544B20EVM and Fusion Digital Power Designer.
The registers were default setting. (IOUT warn: 20A, IOUT Fault: 26A)
The IOUT warning was detected when "Read IOUT" value was about 16A.
The IOUT Fault was detected when "Read IOUT" value was about 22.5A.
Why the detection value is lower than setting threshold such as this? And isn't the "READ IOUT" value used for detection of warning and Fault?
Actual output current value is 13A to 14A when "Read IOUT" value is 16A. And it is 18 to 19A when "Read IOUT" value is 22.5A.
I think this error is too much against to actual output current. How much level Warn and Fault threshold should we set with respect to maximum load?
Best Regards,
Kohei Sasaki