LM4871

更新时间： 2024-01-17 04:04:42

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	247K
描述
1.1W Audio Power Amplifier with Shutdown Mode

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技术参数
数据手册

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LM4871 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	DIP,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.33.00.01
风险等级：	5.82	标称带宽：	20 kHz
商用集成电路类型：	AUDIO AMPLIFIER	谐波失真：	10%
JESD-30 代码：	R-PDIP-T8	JESD-609代码：	e3
长度：	9.817 mm	湿度敏感等级：	1
信道数量：	1	功能数量：	1
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	标称输出功率：	1.5 W
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	5.08 mm	最大压摆率：	10 mA
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2 V
表面贴装：	NO	温度等级：	INDUSTRIAL
端子面层：	TIN	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7.62 mm

LM4871 数据手册

February 2000

LM4871

1.1W Audio Power Amplifier with Shutdown Mode

General Description

Key Specifications

The LM4871 is a bridge-connected audio power amplifier ca-

pable of delivering typically 1.1W of continuous average

n THD at 1 kHz at 1W continuous

average output power into 8Ω

0.5 (max)

power to an 8Ω load with 0.5 (THD) from a 5V power sup-

n Output power at 10 THD+N

ply.

1.5W (typ)

at 1 kHz into 8Ω

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.

n Shutdown Current

0.6 µA (typ)

Features

n No output coupling capacitors, bootstrap capacitors, or

snubber circuits are necessary

The LM4871 features an externally controlled, low-power

consumption shutdown mode, as well as an internal thermal

shutdown protection mechanism.

n Small Outline or DIP packaging

n Unity-gain stable

n External gain configuration capability

n Pin compatible with LM4861

The unity-gain stable LM4871 can be configured by external

gain-setting resistors.

Applications

n Portable Computers

n Desktop Computers

n Low Voltage Audio Systems

Typical Application

Connection Diagram

Small Outline and DIP Package

DS100008-2

Top View

Order Number LM4871M or LM4871N

See NS Package Number M08A or N08E

DS100008-1

FIGURE 1. Typical Audio Amplifier Application Circuit

Boomer^®is a registered trademark of National Semiconductor Corporation.

DS100008

www.national.com

12 3 4 5 6 7 8

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