In TPS61194, when there is a short circuit (Vout shorted to OUTx),it is observed that fault is not reported all the time.
Test Conditions:
Input Voltage=12v
RIset = 49k
Rfset = 160k
PWM=100%
Feedback: R1= 470k, R2=130k
(Out1,Out2) channels are shorted
Vout= 15V
In my design VDDIO is 1.8V and Fault pin is pulled up to 1.8V through 10k resistor