The LM3876 is a high-performance audio power amplifier capable of delivering 56W of continuous average power to an 8Ω load with 0.1% THD+N from 20Hz–20kHz.
The LM3876 Overture series is a high‑performance audio power amplifier capable of delivering 56 W continuous average power into an 8 Ω load with 0.1 % THD+N from 20 Hz to 20 kHz. It features National Semiconductor’s SPiKe™ protection circuitry, which safeguards the device against over‑voltage, under‑voltage, overloads, short‑to‑ground, and thermal runaway.
The device operates over a wide supply range (20 V‑94 V), offers a signal‑to‑noise ratio of ≥95 dB, and is packaged in an 11‑lead TO‑220 package. Typical applications include compact stereo systems, self‑powered speakers, surround‑sound amplifiers, and high‑end stereo TVs.
| Continuous average output power | 56 W into 8 Ω |
|---|---|
| Instantaneous peak output power | 100 W |
| Signal‑to‑Noise Ratio | ≥95 dB (min) |
| Supply voltage range | 20 V – 94 V |
| Package type | 11‑lead TO‑220 |
The LM3876 can deliver 56 W of continuous average power into an 8 Ω load.
It includes SPiKe™ protection that safeguards the output against over‑voltage, under‑voltage, overloads, shorts to ground or the supplies, and thermal runaway.
The device operates from 20 V up to 94 V supply voltage.
It is supplied in an 11‑lead TO‑220 package.