参数资料
型号: LM4861MWA
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 音频/视频放大
英文描述: 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC
封装: WAFER
文件页数: 1/11页
文件大小: 273K
代理商: LM4861MWA
LM4861
1.1W Audio Power Amplifier with Shutdown Mode
General Description
The LM4861 is a bridge-connected audio power amplifier ca-
pable of delivering 1.1W of continuous average power to an
8
load with 1% THD+N using a 5V power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components using surface mount packaging. Since
the LM4861 does not require output coupling capacitors,
bootstrap capacitors, or snubber networks, it is optimally
suited for low-power portable systems.
The LM4861 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
The unity-gain stable LM4861 can be configured by external
gain-setting resistors for differential gains of up to 10 without
the use of external compensation components. Higher gains
may be achieved with suitable compensation.
Key Specifications
j THD+N for 1kHz at 1W continuous
average output power into 8
1.0% (max)
j Output power at 10% THD+N
at 1kHz into 8
1.5W (typ)
j Shutdown Current
0.6A (typ)
Features
n
No output coupling capacitors, bootstrap capacitors, or
snubber circuits are necessary
n
Small Outline (SO) packaging
n
Compatible with PC power supplies
n
Thermal shutdown protection circuitry
n
Unity-gain stable
n
External gain configuration capability
Applications
n
Personal computers
n
Portable consumer products
n
Self-powered speakers
n
Toys and games
Typical Application
Connection Diagram
Boomer is a registered trademark of National Semiconductor Corporation.
DS011986-1
FIGURE 1. Typical Audio Amplifier Application Circuit
Small Outline Package
DS011986-2
Top View
Order Number LM4861M
See NS Package Number M08A
August 2000
LM4861
1.1W
Audio
Power
Amplifier
with
Shutdown
Mode
2000 National Semiconductor Corporation
DS011986
www.national.com
相关PDF资料
PDF描述
LM4862G-D08-T 0.8 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP8
LM4862G-S08-R 0.8 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
LM4862L-D08-T 0.8 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP8
LM4862L-S08-R 0.8 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
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相关代理商/技术参数
参数描述
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LM4861MX/NOPB 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
LM4861MX-NOPB 制造商:TI 制造商全称:Texas Instruments 功能描述:LM4861 1.1W Audio Power Amplifier with Shutdown Mode
LM4862 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE
LM4862G-D08-T 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE