DRV8873-Q1: current measuremement using Iprop pin

Tool/software:

Hi

We are using DRV8873-Q1 in our design.  We are measuring 1.4V at Iprop pin. We are using 390 ohms sense resistor as per the below schematic.

Now while using the formula and checking for current, we are getting (1.4/390)*5*1100 = 19.7A. However when we measured the current using a current probe, its around 4A. Is this formula given in datasheet correct?. If we remove the multiplier 5 and make the calculations, we are getting (1.4/390)*1100 = 3.9A which is closer to the measured value. Please let us know which computation is correct?