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LM4870 PDF预览

LM4870

更新时间: 2024-01-02 05:28:58
品牌 Logo 应用领域
美国国家半导体 - NSC 放大器功率放大器
页数 文件大小 规格书
8页 263K
描述
1.1W Audio Power Amplifier with Shutdown Mode

LM4870 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:SOP, SOP16,.25Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:5.91标称带宽:20 kHz
商用集成电路类型:AUDIO AMPLIFIERJESD-30 代码:R-PDSO-G16
JESD-609代码:e0长度:9.9 mm
信道数量:1功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-20 °C标称输出功率:1.1 W
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:2.2/5 V认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Audio/Video Amplifiers
最大压摆率:15 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2 V表面贴装:YES
技术:CMOS温度等级:OTHER
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

LM4870 数据手册

 浏览型号LM4870的Datasheet PDF文件第2页浏览型号LM4870的Datasheet PDF文件第3页浏览型号LM4870的Datasheet PDF文件第4页浏览型号LM4870的Datasheet PDF文件第5页浏览型号LM4870的Datasheet PDF文件第6页浏览型号LM4870的Datasheet PDF文件第7页 
October 1997  
LM4870  
1.1W Audio Power Amplifier with Shutdown Mode  
General Description  
Key Specifications  
The LM4870 is a bridge-connected audio power amplifier ca-  
pable of delivering 1.1W of continuous average power to an  
8load with less than 0.5% THD+N over the audio spectrum  
from a 5V power supply.  
n THD+N at 1W into 8Ω  
0.5% (max)  
1.5W (typ)  
n Output power into 8at 1kHz  
at 10%THD+N  
n Shutdown Current  
0.6µA (typ)  
Boomer audio power amplifiers were designed specifically to  
provide high quality output power with a minimal number of  
external components. Since the LM4870 does not require  
output coupling capacitors, bootstrap capacitors or snubber  
networks, it is optimally suited for low-power portable sys-  
tems.  
Features  
n No output coupling capacitors, bootstrap capacitors, or  
snubber circuits are necessary  
n Small Outline (SOIC) power packaging  
n Unity-gain stable  
n External gain configuration capability  
The LM4870 features an externally controlled, low-power  
consumption shutdown mode, as well as an internal thermal  
shutdown protection mechanism. It also includes two head-  
phone control inputs and a headphone sense output for ex-  
ternal monitoring. The LM4870 is unity-gain stable and the  
gain is set using external resistors.  
Applications  
n Personal computers  
n Desktop computers  
n Low voltage audio system  
Typical Application  
Connection Diagram  
Small Outline Package  
DS100094-2  
Top View  
Order Number LM4870M  
See NS Package Number M16A  
DS100094-1  
FIGURE 1. Typical Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 1999 National Semiconductor Corporation  
DS100094  
www.national.com  

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