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INA303-Q1: Discrepancy in delay capacitance formula

Part Number: INA303-Q1

The integrated current sense amp+dual comparator IC features one of the comparators' output delayed (comparator 2: Latch 2 and Alert 2).

Section 7.3.3 of the datasheet has the delay calculation formula in the attached snipet.

According to the formula 

tdelay =             Cdelay x Vth 

           ------------------------        +           2.5u

                         Id

or

Cdelay =          (tdelay - 2.5u) x Id 

                         ------------------------        

                                    Vth

where Vth = 1.22V, Id = 5uA (page 6)

Using the above formula for a delay of 26.9us, the Cdelay value is 100pF.

But as highlighted in the snippet, the datasheet goes on to say for a 10us delay, the capacitance necessary is 492pF, which is a ~12.2x offset from the above formula.

Mathematically speaking the formula seems to be correct but as per our observation the formula seems to be incorrect.

Please confirm is the formula correct, with the constants (Vth and Id) and where the discrepancy is coming from.