LM3886 is a high-performance audio power amplifier from TI that delivers 68W of continuous average power and 0.1% THD+N, meeting the needs of various audio applications.
The LM3886 Overture™ audio power amplifier delivers up to 68 W continuous average power into a 4 Ω load at a 28 V supply and maintains a signal‑to‑noise ratio greater than 92 dB. It features a mute function, wide supply range (20 V‑94 V), and SPiKe™ protection that safeguards the device against over‑voltage, under‑voltage, overloads, shorts, and thermal spikes.
The datasheet includes detailed electrical characteristics, typical application circuits for single‑supply and split‑supply configurations, external component descriptions, and mechanical dimensions. It also outlines absolute maximum ratings, recommended operating conditions, and notes on life‑support policy and banned substance compliance.
| Continuous output power (4Ω, Vcc=+28V) | 68 W |
|---|---|
| Continuous output power (8Ω, Vcc=+28V) | 38 W |
| Continuous output power (8Ω, Vcc=+35V) | 50 W |
| Peak instantaneous output power | 135 W |
| Signal‑to‑Noise Ratio | > 92 dB |
| Supply voltage range | 20 V – 94 V |
| Package type | 11‑lead TO‑220 |
| Operating temperature range | -20 °C to +85 °C |
| Maximum power dissipation | 125 W |
The LM3886 can deliver up to 68 W continuous average power into a 4 Ω load at a 28 V supply.
Yes, the LM3886 provides an input mute function.
The device includes SPiKe™ protection, output protection from shorts, over‑voltage protection, under‑voltage protection, and thermal protection against temperature spikes.
The LM3886 operates with a supply voltage range of 20 V to 94 V.