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LM4877IBP Datasheet

  • LM4877IBP

  • 1 Watt Audio Power Amplifier in micro SMD package with Shutd...

  • 431.14KB

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LM4877 1 Watt Audio Power Amplifier micro SMD package with Shutdown Logic Low
February 2000
LM4877
1 Watt Audio Power Amplifier in micro SMD package
with Shutdown Logic Low
General Description
The LM4877 is a bridge-connected audio power amplifier ca-
pable of delivering 1 W of continuous average power to an
8鈩?load with less than .2% (THD) from a 5V power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. Since the LM4877 does not require
output coupling capacitors or bootstrap capacitors. It is opti-
mally suited for low-power portable applications.
The LM4877 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
The unity-gain stable LM4877 can be configured by external
gain-setting resistors.
Key Specifications
n
Power Output at 0.2% THD
n
Shutdown Current
1 W (typ)
0.01 碌A(chǔ) (typ)
Features
n
n
n
n
n
micro SMD package (see App. note AN-1112)
5V - 2V operation
No output coupling capacitors or bootstrap capacitors.
Unity-gain stable
External gain configuration capability
Applications
n
Cellular Phones
n
Portable Computers
n
Low Voltage Audio Systems
Typical Application
Connection Diagram
8 Bump micro SMD
DS101290-23
Top View
Order Number LM4877IBP, LM4877IBPX
See NS Package Number BPA08B6B
DS101290-1
FIGURE 1. Typical Audio Amplifier Application Circuit
Boomer
廬
is a registered trademark of National Semiconductor Corporation.
漏 2000 National Semiconductor Corporation
DS101290
www.national.com

LM4877IBP 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • Boomer®

  • AB 類

  • 1-通道（單聲道）

  • 1W x 1 @ 8 歐姆

  • 2 V ~ 5.5 V

  • 關(guān)閉，熱保護(hù)

  • 表面貼裝

  • 8-uSMD

  • 8-VFBGA

  • 剪切帶 (CT)

  • *LM4877IBPLM4877IBPCT

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