LM4870MX

更新时间： 2024-02-12 15:18:09

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
暂无描述

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LM4870MX 数据手册

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

8Ω load 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 8Ω at 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.

DS100094

www.national.com

12 3 4 5 6 7 8

下载PDF

与LM4870MX相关器件

型号	品牌	描述	获取价格	数据表
LM4871	NSC	1.1W Audio Power Amplifier with Shutdown Mode	获取价格
LM4871	TI	3W Audio Power Amplifier with Shutdown Mode	获取价格
LM4871_03	NSC	3W Audio Power Amplifier with Shutdown Mode	获取价格
LM4871LD	TI	3W Audio Power Amplifier with Shutdown Mode	获取价格
LM4871LD/NOPB	TI	3W Audio Power Amplifier with Shutdown Mode	获取价格
LM4871LD/NOPB	NSC	IC 3 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO8, LLP-8, Audio/Video Amplifier	获取价格