LM4780TABD

LM4780, LM4780TABD www.ti.com SNAS193B – JULY 2003 – REVISED APRIL 2013 LM4780 Overture™ Audio Power Amplifier Series Stereo 60W, Mono 120W Audio Power Amplifier with Mute Check for Samples: LM4780, LM4780TABD FEATURES 1 23 SPiKe Protection Low External Component Count Quiet Fade-In/Out Mute Mode Wide Supply Range: 20V - 84V Signal-to-Noise Ratio ≥ 97dB (ref. to PO = 1W) APPLICATIONS Audio Amplifier for Component Stereo Audio Amplifier for Compact Stereo Audio Amplifier for Self-Powered Speakers Audio Amplifier for High-End and HD TVs KEY SPECIFICATIONS Output Power/Channel with 0.5% THD+N, 1kHz into 8Ω: 60 W (Typ) THD+N at 2 x 30W into 8Ω (20Hz - 20kHz): 0.03% (Typ) THD+N at 2 x 30W into 6Ω (20Hz - 20kHz): 0.05% (Typ) THD+N at 2 x 30W into 4Ω (20Hz - 20kHz): 0.07% (Typ) Mute Attenuation: 110 dB (Typ) PSRR: 85 dB (Min) Slew Rate: 19V/µs (Typ) DESCRIPTION The LM4780 is a stereo audio amplifier capable of typically delivering 60W per channel of continuous average output power into an 8Ω load with less than 0.5% THD+N from 20Hz - 20kHz. The LM4780 is fully protected utilizing Texas Instruments' Self Peak Instantaneous Temperature (°Ke) (SPiKeTM) protection circuitry. SPiKe provides a dynamically optimized Safe Operating Area (SOA). SPiKe protection completely safeguards the LM4780's outputs against over-voltage, undervoltage, overloads, shorts to the supplies or GND, thermal runaway and instantaneous temperature peaks. The advanced protection ...