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參數(shù)資料
| 型號： | LM4872IBPX |
| 廠商： | National Semiconductor |
| 文件頁數(shù)： | 10/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO PWR 1W MONO 8USMD |
| 標準包裝： | 3,000 |
| 系列： | Boomer® |
| 類型： | AB 類 |
| 輸出類型： | 1-通道（單聲道） |
| 在某負載時最大輸出功率 x 通道數(shù)量： | 1W x 1 @ 8 歐姆 |
| 電源電壓： | 2 V ~ 5.5 V |
| 特點： | 關閉，熱保護 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 8-uSMD |
| 封裝/外殼： | 8-VFBGA |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | *LM4872IBPX |
LM4872
1 Watt Audio Power Amplifier in micro SMD package
General Description
The LM4872 is a bridge-connected audio power amplifier
capable of delivering1Wof continuous average power to an
8
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 LM4872 does not require
output coupling capacitors or bootstrap capacitors. It is op-
timally suited for low-power portable applications.
The LM4872 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
The unity-gain stable LM4872 can be configured by external
gain-setting resistors.
Key Specifications
n
Power Output at 0.2% THD
1W (typ)
n
Shutdown Current
0.01A (typ)
Features
n
micro SMD package (see App. note AN-1112)
n
5V - 2V operation
n
No output coupling capacitors or bootstrap capacitors.
n
Unity-gain stable
n
External gain configuration capability
Applications
n
Cellular Phones
n
Portable Computers
n
Low Voltage Audio Systems
Typical Application
Boomer is a registered trademark of National Semiconductor Corporation.
10123001
FIGURE 1. Typical Audio Amplifier Application Circuit
October 2002
LM4872
1
W
att
Audio
Power
Amplifier
micro
SMD
package
2002 National Semiconductor Corporation
DS101230
www.national.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM4872ITP | 制造商:Texas Instruments 功能描述:AMP AUDIO 1W BOOMER SMD 4872 |
| LM4872ITP/NOPB | 功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負載時最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4872ITPX/NOPB | 制造商:Texas Instruments 功能描述: |
| LM4873 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 2.1W Audio Amplifier Plus Stereo Headphone Function |
| LM4873_02 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 2.1W Audio Amplifier Plus Stereo Headphone Function |
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