LM4766_15 Datasheet, PDF (1/23 Pages) Texas Instruments – Overture Audio Power Amplifier Series Dual 40W Audio Power Amplifier with Mute

LM4766
www.ti.com
SNAS031F – SEPTEMBER 1998 – REVISED MARCH 2013
LM4766 Overture™ Audio Power Amplifier Series
Dual 40W Audio Power Amplifier with Mute
Check for Samples: LM4766
FEATURES
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•23 SPiKe Protection
• Minimal Amount of External Components
Necessary
• Quiet Fade-In/Out Mute Mode
• Non-Isolated 15-Lead TO-220 Package
• Wide Supply Range 20V - 78V
APPLICATIONS
• High-End Stereo TVs
• Component Stereo
• Compact Stereo
KEY SPECIFICATIONS
• THD+N at 1kHz at 2 x 30W Continuous
Average Output Power Into 8Ω 0.1% (Max)
• THD+N at 1kHz at Continuous Average Output
Power of 2 x 30W Into 8Ω 0.009% (Typ)
DESCRIPTION
The LM4766 is a stereo audio amplifier capable of
delivering typically 40W per channel with the non-
isolated "NDL" package and 30W per channel with
the isolated "NDB" package of continuous average
output power into an 8Ω load with less than 0.1%
(THD+N).
The performance of the LM4766, utilizing its Self
Peak Instantaneous Temperature (°Ke) (SPiKe)
Protection Circuitry, places it in a class above
discrete and hybrid amplifiers by providing an
inherently, dynamically protected Safe Operating
Area (SOA). SPiKe Protection means that these parts
are safeguarded at the output against overvoltage,
undervoltage, overloads, including thermal runaway
and instantaneous temperature peaks.
Each amplifier within the LM4766 has an independent
smooth transition fade-in/out mute that minimizes
output pops. The IC's extremely low noise floor at
2µV and its extremely low THD+N value of 0.06% at
the rated power make the LM4766 optimum for high-
end stereo TVs or minicomponent systems.
Connection Diagram
Figure 1. Plastic Package
Top View
Non-Isolated TO-220 Package
See Package Number NDL0015A
Isolated PFM Package
See Package Number NDB0015B
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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.
Overture is a trademark of Texas Instruments.
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All other trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1998–2013, Texas Instruments Incorporated