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參數資料
| 型號： | LM4876MDC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封裝： | DIE |
| 文件頁數： | 1/13頁 |
| 文件大小： | 331K |
| 代理商： | LM4876MDC |
LM4876
1.1W Audio Power Amplifier with Logic Low Shutdown
General Description
The LM4876 is a single 5V supply bridge-connected audio
power amplifier capable of delivering 1.1W (typ) of continu-
ous average power to an 8
load with 0.5% THD+N.
Like other audio amplifiers in the Boomer series, the LM4876
is designed specifically to provide high quality output power
with a minimal amount of external components. The LM4876
does not require output coupling capacitors, bootstrap ca-
pacitors, or snubber networks. It is perfectly suited for low-
power portable systems.
The LM4876 features an active low externally controlled,
micro-power shutdown mode. Additionally, the LM4876 fea-
tures an internal thermal shutdown protection mechanism.
For PCB space efficiency, the LM4876 is available in MSOP
and SO surface mount packages.
The unity-gain stable LM4876’s closed loop gain is set using
external resistors.
Key Specifications
j THD+N at 1kHz for 1W continuous
average output power into 8
0.5% (max)
j Output power at 1kHz into 8
with 10% THD+N
1.5W (typ)
j Shutdown current
0.01A (typ)
j Supply voltage range
2.0V to 5.5V
Features
n
Does not require output coupling capacitors, bootstrap
capacitors, or snubber circuits
n
10-pin MSOP and 8-pin SO packages
n
Unity-gain stable
n
External gain set
Applications
n
Mobile Phones
n
Portable Computers
n
Desktop Computers
n
Low-Voltage Audio Systems
Typical Application
Connection Diagram
Boomer is a registered trademark of National Semiconductor Corporation.
DS101299-1
FIGURE 1. Typical LM4876 Audio Amplifier Application
Circuit. Numbers in ( ) are specific to the 10-pin MSOP
package
Mini Small Outline MSOP Package
DS101299-25
Top View
Order Number LM4876MM
See NS Package Number MUB10A
Small Outline SO Package
DS101299-2
Top View
Order Number LM4876M
See NS Package Number M08A
August 2000
LM4876
1.1W
Audio
Power
Amplifier
with
Logic
Low
Shutdown
2000 National Semiconductor Corporation
DS101299
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4876MM | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4876MM/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4876MM-NOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM4876 1.1W Audio Power Amplifier with Logic Low Shutdown |
| LM4876MMX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4876MMX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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