Idle Timeout, Orphan Timeout help

Here's the DB Connection code for a site (Web.config file)
I was wondering how I could specify an idle timeout or orphan timeout.
I tried idle timeout=x and kept getting errors

<add key="DBConn"
value="server=localhost;Trusted_Connection=true;database=SaltwaterFishing;Min Pool
Size=5;Max Pool Size=150;"></add
Thank youHere is the documentation describing allowed options for a SQL Connection.|||Thank you