Well that is absolute nonsense. That is a fact. I am a fully qulaified Technician. this is all I do for a living and the statement above is rubbish. Take for example a BU2508D as Line out transistor in a TV set. I get Sets in all the time with this part short circuit. the cause quite often is the line drive frequency is wrong which causes the Transistor to overheat as it is drawing too much current. A repeat failure of the transistor if the cause is left unresolved can be anything from a couple of minutes to over a week sometimes more so to state excess current would cause failure in at most 10 mins is not accurate at all.
What is this statement. Current is not SUPPLIED. The current is drawn The current in a circuit supplied by a fixed frequency output is dependant on the design and discrete components in the circuit.
Take a simple 12v power adapter that is rated at 800ma. This does not mean its output is 800ma. The current drawn from the adapter is dependant on the device connected to it. If its connected to say a programmer whose total current drawn id 8ma then that is it 8ma. The adapter does not kick out 800ma at the programmer.
If the chip determined the actual supply current which it does not there would be no problem because the current supplied could never exceed the output from the chip.
The theory behind all this as it came about was if the Lframe was held permanently to ground what would happen. So you measure the current in series with the circuit in both conditions (chip on chip off). Theory is the circuit draws excess current if the Lframe is held to ground permanent. To reduce the amount of current draw the signal can be pulsed. Some chips supposedly do this.
catdog2 was just looking at a way to reduce the current drawn when he posted this thread. Less current drawn = less thermal stress = better for the circuit concerned.