# ITS4060S-SJ-N overvoltage protection

I (think I) want to use an ITS4060S-SJ-N (+datasheet) in a circuit that can't handle over 40V (an LM2576T-5), but will normally receive 8-30V with a ≤12W load. Its purpose would be to provide overvoltage protection, short circuit protection, thermal shutdown, and reverse battery protection*. But I'm having trouble making sense of the datasheet to find what voltage it would clamp at. From the datasheet, I see that:

• Overvoltage protection $$\V_\text{SAZmin} = 41\text{V}\$$ (Product Summary, p2)
• Max supply voltage $$\V_\text{S} = 40\text{V}\$$ (Absolute Maximum Ratings, p5)
• Overvoltage protection $$\V_\text{OUT}=V_\text{S}-V_\text{ONCL}\$$, $$\V_\text{SAZmin}\$$ = 41V (Electrical Characteristics, p8)
• Output clamp at $$\V_\text{OUT}=V_\text{S}-V_\text{DSCL}\$$ (inductive load switch off), $$\V_\text{DSCLmin}\$$ = 41V (Electrical Characteristics, p8)

Does that mean it would clamp to 41V? $$\V_\text{ONCL}\$$ is only mentioned once, without further explanation. I've searched for $$\V_\text{SAZmin}\$$ online and couldn't come up with anything either. The $$\V_\text{DSCL}\$$ line seems to indicate that the output voltage is at least 41V lower than supply ($$\V_\text{S}\$$) under inductive load switch off, so perhaps that means that for say $$\V_\text{S}<41\text{V}\$$ then $$\V_\text{OUT}=0\text{V}\$$. But what constitutes the maximum output voltage? It could be anything up to 41V in that case. I think there would have to be something more in the logic block on p3...

* Will include a 150Ω ground resistor and a PMOSFET to limit load's reverse current, see note 4 on p8.