I have constructed the circuit in the datasheet with an LC filter circuit shown for 8 ohm speaker. By-the-by, I am very pleased with the audio quality. However, I'm experiencing a problem with the short circuit protection feature in the chip. It intermittently activates. As far as I can discern there is neither a short to either ground or power, certainly not constantly and I don't believe intermittently. When I measure resistance at the output of the chip (more specifically at the cathode of the two Schottky diodes), I get readings above 2.275k (readings change slowly upward toward 5.60k as a cap charges up). Playing time for this problem varies between a second to up to 75 seconds. Cycling the "Shutdown" pin to ground and back to the pull up voltage (Vcc: +16vdc) will always bring the output back to life, even if only briefly. Occasionally, very occasionally, it will start back up on its own without recycling the "Shutdown" pin.
Obviously, I am looking for the cause. Right now I am leaning towards a malfunctioning TPA3001D1 chip. Is that a possible failure mode? Is there anyway to trouble shoot this problem sans replacing the chip? Do you have any other ideas for my to investigate?