LM4765 Datasheet, PDF (1/24 Pages) National Semiconductor (TI) – Audio Power Amplifier Series Dual 30W Audio Power Amplifier with Mute and Standby Modes

LM4765
www.ti.com
SNAS030C – AUGUST 1998 – REVISED APRIL 2013
LM4765 Overture™ Audio Power Amplifier Series Dual 30W Audio Power Amplifier with
Mute and Standby Modes
Check for Samples: LM4765
FEATURES
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•23 SPiKe Protection
• Minimal Amount of External Components
Necessary
• Quiet Fade-In/Out Mute Mode
• Standby-Mode
• Non-Isolated 15-Lead TO-220 Package
• Wide Supply Range 20V - 66V
KEY SPECIFICATIONS
• THD+N at 1kHz at 2 x 25W 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)
• Standby Current: 6.5mA (typ)
DESCRIPTION
The LM4765 is a stereo audio amplifier capable of
delivering typically 30W per channel of continuous
average output power into an 8Ω load with less than
0.1% THD+N.
Each amplifier has an independent smooth transition
fade-in/out mute and a power conserving standby
mode which can be controlled by external logic.
The performance of the LM4765, 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.
APPLICATIONS
• High-End Stereo TVs
• Component Stereo
• Compact Stereo
TYPICAL APPLICATION
Numbers in parentheses represent pinout for amplifier B.
*Optional component dependent upon specific design requirements.
Figure 1. Typical Audio Amplifier Application Circuit
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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