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LM4782 Datasheet(PDF) 1 Page - Texas Instruments |
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LM4782 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 33 page LM4782, LM4782TABD www.ti.com SNAS231B – FEBRUARY 2004 – REVISED MARCH 2013 LM4782 Overture™ Audio Power Amplifier Series 3 Channel 25W Audio Power Amplifier with Mute and Standby Check for Samples: LM4782, LM4782TABD 1 FEATURES DESCRIPTION The LM4782 is a three channel audio amplifier 23 • SPiKe Protection capable of typically delivering 25W per channel of • Low External Component Count continuous average output power into an 8 Ω load • Quiet Fade-In/Out Mute Mode with less than 0.5% THD+N from 20Hz - 20kHz. • Low Power Standby Mode The LM4782 is fully protected utilizing TI's Self Peak • Wide Supply Range: 20V - 64V Instantaneous Temperature (°Ke) (SPiKeTM) protection circuitry. SPiKe provides a dynamically • Signal-to-Noise Ratio ≥ 98dB (ref. to PO = 1W) optimized Safe Operating Area (SOA). SPiKe protection completely safeguards the LM4782's APPLICATIONS outputs against over-voltage, under-voltage, • Audio Amplifier for Component Stereo overloads, shorts to the supplies or GND, thermal runaway and instantaneous temperature peaks. The • Audio Amplifier for Compact Stereo advanced protection features of the LM4782 places it • Audio Amplifier for Home Theater in a Box in a class above discrete and hybrid amplifiers. (HTB) Each amplifier of the LM4782 has an independent • Audio Amplifier for Self-Powered Speakers smooth transition fade-in/out mute and a power • Audio Amplifier for High-End and HD TVs conserving standby mode. The mute and standby modes can be controlled by external logic. KEY SPECIFICATIONS The LM4782 can easily be configured for bridge or • Output Power/Channel with 0.5% THD+N, 1kHz parallel operation for higher power and bi-amp into 8 Ω: 25W (typ) solutions. • THD+N at 3x15W into 8 Ω (20Hz - 20kHz): 0.2% (typ) • THD+N at 3x15W into 6 Ω (20Hz - 20kHz): 0.3% (typ) • THD+N at 3x15W into 4 Ω (20Hz - 20kHz): 0.4% (typ) • Mute Attenuation: 115dB (typ) • PSRR: 85dB (min) • Slew Rate: 18V/ μs (typ) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 Overture is a trademark of dcl_owner. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2004–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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