22-04-2012, 08:08 PM
Most manuals will give the quescent current, as a rough guide (it's been a long time) set the current limit to the quoted quescent current plus a working current of say 20-30 ma for starters, but as Mark says..you can set it to a reasonable safety margin (say 30%) below the maximum current the output transistors are rated at , that figure can also be derived from the max power rating of the device at its normall operating voltage.
Lawrence.
Lawrence.







