Voltage level detector for power amplifier protection control

摘要

A voltage level detector ( 8 ) which activates itself by monitoring the voltage level (V_STB) at a standby pin ( 5 ) during power-up of an audio power amplifier ( 10 ), and can detect fault conditions of an output block ( 2 ), such as a short to ground at an output terminal ( 3 ), in contrast to conventional protection circuits that can operate only after power-up.