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LM4782 Datasheet(PDF) 1 Page - Texas Instruments

Part # LM4782
Description  Audio Power Amplifier Series
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM4782 Datasheet(HTML) 1 Page - Texas Instruments

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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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