Questions about ADuM3070 hiccup mode

Hi,

I have a question about ADuM3070.
What are the conditions for hiccup mode operation?

Customer is considering ADuM3070.
When the output is short-circuited, it will once operate in hiccup mode, but then an output current of about 600 mA continued to flow.
The output current continues to flow until the input voltage is removed.
The output is shorted during normal output operation at 3.3V / 10mA.

Does hiccup mode protection not work unless some threshold is exceeded?
As far as I read the data sheet, it seems to go into hiccup mode when the output is short-circuited.
I would appreciate your answer.
Best Regards.