LTC4380 Itmr Calculation


I'm sure I'm missing something silly, but I'm having trouble figuring out how the design example on page 18 of the LTC4380 datasheet comes to the value of Itmr = 30.5uA during the calculation of the short-circuit time? Likewise for 9.75uA for the overload event. Using the formula on page 14 gives me different values.

Any tips would be appreciated.

For the design example for short circuit I'm using the following values:

Id = 5A

Vds = 14V

Rsns = 10mR

Rdrn = 123KR

This gives me Itmr = 77.4uA