LM4731TA Datasheet

Stereo 25W Audio Power Amplifier with Mute and Standby Modes


General Description
The LM4731 is a stereo audio amplifier capable of delivering typically 25W per channel of continuous average output power into a 4Ω or 8Ω 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 shutdown feature that is activated when the die temperature exceeds 150˚C. The LM4731 also has a under voltage lockout 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.

■ Minimal amount of external components necessary
■ Quiet fade-in/out mute mode
■ Low current Standby-mode

■ Audio amplifier for high-end stereo TVs
■ Audio amplifier for component stereo
■ Audio amplifier for compact stereo
■ Audio amplifier for PC satellite speaker systems
■ Audio amplifier for self powered speakers




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