LM4819M Datasheet

IC型号：
LM4819M
PDF描述：
National Semiconductor [350mW Audio Power Amplifier with Sh...
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618.86KB
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NSC

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LM4819 350mW Audio Power Amplifier with Shutdown Mode

April 2002

LM4819

350mW Audio Power Amplifier with Shutdown Mode

General Description

The LM4819 is a mono bridged power amplifier that is ca-

pable of delivering 350mW

RMS

output power into a 16鈩?load

or 300mW

RMS

output power into an 8鈩?load with 10%

THD+N from a 5V power supply.

The LM4819 Boomer audio power amplifier is designed

specifically to provide high quality output power and mini-

mize PCB area with surface mount packaging and a minimal

amount of external components. Since the LM4819 does not

require output coupling capacitors, bootstrap capacitors or

snubber networks, it is optimally suited for low-power por-

table applications.

The closed loop response of the unity-gain stable LM4819

can be configured using external gain-setting resistors. The

device is available in LLP, MSOP, and SO package types to

suit various applications.

Key Specifications

THD+N at 1kHz, 350mW continuous average output

power into 16鈩?/div>

10% (max)

THD+N at 1kHz, 300mW continuous average output

power into 8鈩?/div>

10% (max)

Shutdown Current

0.7碌A (typ)

Features

LLP, SOP, and MSOP surface mount packaging.

Switch on/off click suppression.

Unity-gain stable.

Minimum external components.

Applications

General purpose audio

Portable electronic devices

Information Appliances (IA)

Typical Application

DS200136-1

FIGURE 1. Typical Audio Amplifier Application Circuit

Boomer

庐

is a registered trademark of National Semiconductor Corporation.

漏 2002 National Semiconductor Corporation

DS200136

www.national.com

标准包装
95
类别
集成电路 (IC)
家庭
线性 - 音頻放大器
系列
Boomer®
类型
AB 类
输出类型
1-通道（单声道）
在某负载时最大输出功率 x 通道数量
350mW x 1 @ 16 欧姆
电源电压
2 V ~ 5.5 V
特点
消除爆音，差分输入，关闭
安装类型
表面贴装
供应商设备封装
8-SOIC
封装/外壳
8-SOIC（0.154"，3.90mm 宽）
包装
管件
其它名称
*LM4819M

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