Stereo 25w Audio Power Amplifier With Mute And Standby Modes - National Semiconductor

The LM4731 is a stereo Audio Amplifier capable of delivering typically 25W per channel of continuous average output power into a 4 or 8 load with less than 10% THD+N from 20Hz - 20kHz. Each Amplifier has an independent smooth transition fade- in/out mute and a power conserving standby mode which CAN be controlled by external Logic The LM4731 has short Circuit Protection and a thermal shut down feature that is activated when the die temperature exceeds 150C. The LM4731 also has a under voltage lock out feature for click and pop free power off and on. The LM4731 has a wide operating supply range from +/-10V - +/-28V allowing for lower cost unregulated power supplies to be used. By National Semiconductor Corporation