LM3886T 68w Mono Power Amplifier IC


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SKU: LM3886T 68w Mono Audio Amplifier Category: Tags: , , , , , , , , , ,


The LM3886 is a high-performance audio power amplifiercapable of delivering 68W of continuous average power to a4Ω load and 38W into 8Ω with 0.1% THD+N from20Hz–20kHz.

The performance of the LM3886, utilizing its Self Peak In-stantaneous Temperature (˚Ke) (SPiKecuitry, puts it in a class above discrete and hybrid amplifiersby providing an inherently, dynamically protected Safe Op-erating Area (SOA).

SPiKe protection means that theseparts are completely safeguarded at the output against ov-ervoltage, undervoltage, overloads, including shorts to thesupplies, thermal runaway, and instantaneous temperaturepeaks.

The LM3886 maintains an excellent signal-to-noise ratio ofgreater than 92dB with a typical low noise floor of 2.0µV.

It exhibits extremely low THD+N values of 0.03% at the ratedoutput into the rated load over the audio spectrum, andprovides excellent linearity with an IMD (SMPTE) typicalrating of 0.004%.


  • 68W cont. avg. output power into 4Ω at VCC = ±28V
  • 38W cont. avg. output power into 8Ω at VCC = ±28V
  • 50W cont. avg. output power into 8Ω at VCC = ±35V
  • 135W instantaneous peak output power capability
  • Signal-to-Noise Ratio ≥ 92dB
  • An input mute function
  • Output protection from a short to ground or to the supplies via internal current limiting circuitry
  • Output over-voltage protection against transients from inductive loads
  • Supply under-voltage protection
  • 11-lead TO-220 package
  • Wide supply range 20V – 94V

Additional information