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參數(shù)資料
| 型號： | LM4871 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1.1W Audio Power Amplifier with Shutdown Mode |
| 中文描述： | 1.1W音頻功率放大器關(guān)斷模式 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 243K |
| 代理商： | LM4871 |
LM4871
1.1W Audio Power Amplifier with Shutdown Mode
General Description
The LM4871 is a bridge-connected audio power amplifier ca-
pable of delivering typically 1.1W of continuous average
power to an 8
load with 0.5% (THD) from a 5V power sup-
ply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. Since the LM4871 does not require
output coupling capacitors, bootstrap capacitors, or snubber
networks, it is optionally suited for low-power portable sys-
tems.
The LM4871 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
The unity-gain stable LM4871 can be configured by external
gain-setting resistors.
Key Specifications
n
THD at 1 kHz at 1W continuous
average output power into 8
n
Output power at 10% THD+N
at 1 kHz into 8
n
Shutdown Current
0.5% (max)
1.5W (typ)
0.6 μA (typ)
Features
n
No output coupling capacitors, bootstrap capacitors, or
snubber circuits are necessary
n
Small Outline or DIP packaging
n
Unity-gain stable
n
External gain configuration capability
n
Pin compatible with LM4861
Applications
n
Portable Computers
n
Desktop Computers
n
Low Voltage Audio Systems
Typical Application
Connection Diagram
Boomer
is a registered trademark of National Semiconductor Corporation.
DS100008-1
FIGURE 1. Typical Audio Amplifier Application Circuit
Small Outline and DIP Package
DS100008-2
Top View
Order Number LM4871M or LM4871N
See NS Package Number M08A or N08E
February 2000
L
2000 National Semiconductor Corporation
DS100008
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4871N | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871MX | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871M | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4873MTE-1 | Dual 2.1W Audio Amplifier Plus Stereo Headphone Function |
| LM4873MT | Dual 2.1W Audio Amplifier Plus Stereo Headphone Function |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4871_03 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3W Audio Power Amplifier with Shutdown Mode |
| LM4871LD | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4871LD/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4871LDX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4871LDX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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