This part is a kind of semiconductor called LM3886T.

Function of this product has LM3886 Overture Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute.

Manufacturers : National Semiconductor

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LM3886 Overture Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute May 1999 LM3886 Overture™ Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute General Description The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4Ω load and 38W into 8Ω with 0.1% (THD + N) from 20 Hz–20 kHz. The performance of the LM3886, utilizing its Self Peak Instantaneous Temperature (˚Ke) (SPiKe™) Protection Circuitry, puts it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPiKe Protection means that these parts are completely safeguarded at the output against overvoltage, undervoltage, overloads, including sh [ ... ]

LM3886T PDF Datasheet Download