Depop, shutdown, and thermal protection
Built-in depop circuitry suppresses click and pop noise during power-up and shutdown transitions, eliminating the need for external muting FETs or series resistors on the output. The shutdown pin lets a GPIO or power-management IC put the amplifier into a low-current state when audio is idle. Thermal protection folds back output current if the die exceeds safe junction temperature — useful in compact enclosures with limited airflow.
The 8-µSMD package is not hermetically sealed; conformal coating is recommended if condensation or dust is present.