I got the following compare result between actual output current and "READ IOUT" value.
I changed IOUT_OC_FAULT_LIMIT to 30A because IOUT FAULT was detected when actual output current was 18 to 19A.
Actual value Read value
0A 0.13A
2A 2.38A
4A 4.5A
6A 6.75A
8A 9.13A
10A 11.94A
12A 14.06A
14A 17.63A
16A 20.38A
18A 22.38A
20A 25.5A
From this result, I set to "IOUT_CAL_OFFSET" -2A.
In the result, overall READ_IOUT value accuracy became better, however it became impossible to flow 20A load.
OC Fault was detected when actual load current was about 19.5A. Why does the fault threshold become low by setting of "IOUT_CAL_OFFSET"?
We can't flow 20A load if we require high current measurement accuracy like this.
Best Regards,
Kohei Sasaki