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LM3875T Datasheet

  • LM3875T

  • National Semiconductor [OverturTM Audio Power Amplifier Ser...

  • 1001.79KB

  • NSC

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LM3875 Overture Audio Power Amplifier Series High-Performance 56W Audio Power Amplifier
June 1999
LM3875
Overture
鈩?/div>
Audio Power Amplifier Series
High-Performance 56W Audio Power Amplifier
General Description
The LM3875 is a high-performance audio power amplifier
capable of delivering 56W of continuous average power to
an 8鈩?load with 0.1% (THD + N) from 20 Hz鈥?0 kHz.
The performance of the LM3875, utilizing its Self Peak In-
stantaneous Temperature (藲Ke) (SPiKe
鈩?/div>
) Protection Cir-
cuitry, puts it in a class above discrete and hybrid amplifiers
by providing an inherently, dynamically protected Safe Oper-
ating Area (SOA).
SPiKe
Protection means that these parts
are completely safeguarded at the output against overvolt-
age, undervoltage, overloads, including shorts to the sup-
plies, thermal runaway, and instantaneous temperature
peaks.
The LM3875 maintains an excellent Signal-to-Noise Ratio of
greater than 95 dB(min) with a typical low noise floor of
2.0 碌V. It exhibits extremely low (THD + N) values of 0.06%
at the rated output into the rated load over the audio spec-
trum, and provides excellent linearity with an IMD (SMPTE)
typical rating of 0.004%.
Features
56W continuous average output power into 8鈩?/div>
100W instantaneous peak output power capability
Signal-to-Noise Ratio
>
95 dB (min)
Output protection from a short to ground or to the
supplies via internal current limiting circuitry
n
Output over-voltage protection against transients from
inductive loads
n
Supply under-voltage protection, not allowing internal
biasing to occur when |V
EE
| + |V
CC
|
鈮?/div>
12V, thus
eliminating turn-on and turn-off transients
n
11 lead TO-220 package
n
n
n
n
Applications
n
n
n
n
n
Component stereo
Compact stereo
Self-powered speakers
Surround-sound amplifiers
High-end stereo TVs
Typical Application
DS011449-1
*Optional components dependent upon specific design requirements. Refer to the External Components Description section for a component function
description.
FIGURE 1. Typical Audio Amplifier Application Circuit
Overture
鈩?/div>
and
SPiKe
鈩?/div>
Protection are trademarks of National Semiconductor Corporation.
漏 1999 National Semiconductor Corporation
DS011449
www.national.com

LM3875T 產(chǎn)品屬性

  • 20

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • Overture™

  • AB 類(lèi)

  • 1-通道（單聲道）

  • 56W x 1 @ 8 歐姆

  • 20 V ~ 84 V，±10 V ~ 42 V

  • 短路和熱保護(hù)

  • 通孔

  • TO-220-11

  • TO-220-11（成形引線）

  • 管件

  • *LM3875T*LM3875T/NOPBLM3875T/NOPB

LM3875T相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Audio Power Amplifier
    NSC
  • 英文版
  • 英文版
    Audio Power Amplifier
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    INFRARED LAMP LED
    SEOUL
  • 英文版
    National Semiconductor [LM381/LM381A Low Noise Dual Preampl...
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    National Semiconductor [Low Noise Dual Preamplifier]
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    5W Audio Power Amplifier
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    5W Audio Power Amplifier
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    Adjustable Micropower Voltage References
    NSC
  • 英文版
    1.2 & 2.5V MICROPOWER VOLTAGE REFERENCE
    ETC
  • 英文版
    1.2 & 2.5V MICROPOWER VOLTAGE REFERENCE
    MICROSEMI
  • 英文版
    Adjustable Micropower Voltage References
  • 英文版
    Micropower Voltage Reference
    Linear
  • 英文版
    Low Voltage Audio Power Amplifier
    NSC
  • 英文版
    Low Voltage Audio Power Amplifier
    National
  • 英文版
    Low Voltage Audio Power Amplifier
    National Semiconductor
  • 英文版
    National Semiconductor [LM387/LM387A Low Noise Dual Preampl...
    NSC
  • 英文版
    National Semiconductor [LM388 1.5W Audio Power Amplifier]
    NSC

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