Dear Sir,
I've had the same problem with what you'd discussed as below,
The issue I’m having in this design is that the chip will power up with one gain, then some time later (minutes if cold) the gain drops by 4-6dB while the input signal remains constant. The fault line never gets activated to indicate some fault (thermal, current, etc). The gain just drops. The issue does appear to be thermal related and the condition does appear to be latched. When in this “thermal foldback” condition, I can manually pull the fault line low, apply freeze spray, and the condition does not re-occur until I stop applying the freeze spray. Then it returns.
This reduced output condition is also stable. In other words it has not been observed to continue to reduce output. In fact, I can increase the signal being fed to the amp and it will increase the output without further reduction.
Is this issue closed? If it is, could you let me know the result?
Thank you in advance
