For LT3518, the thermal resistance is shown at below
The LT3518 is not designed for short-circuit protection.
More recent ICs such as the LT3922, LT3795, LT3762, LT3932, LT8391A and other LED drivers now have the short-circuit protection which you are looking for.
I hope this helps,
My customers are considering LT 3518.So I got a question.
#1 Although there is description "open LED protection" in the feature portion of the data sheet, How do you protect
Open LED? The method of protection is not described in…