SSM2380 overcurrent protection


I have some questions about SSM2380.(Other user are asking the similar question... )

In the datasheet, it is written about protection function in page of 14 as folloings.

・Automatic level control (ALC) for high quality speaker protection

・The SSM2380 also offers protection circuits for overcurrent and overtemperature protection. 

Q1. Does ALC prevent over voltage or power output to speaker ?

Q2. Which block, of  SSM2380, is protected by the "overcurrent protection" circuit ?

Q3. What is the limitation voltage( or power) of the ALC ?

Q4. What value of the threshold of "overcurrent protection" circuit ?

Could you please answer for above questions ?

Thank you.

Subject miss
[edited by: Deou at 5:28 AM (GMT 0) on 27 Feb 2019]