參數(shù)資料
型號: LM4862N
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: 675 mW Audio Power Amplifier with Shutdown Mode
中文描述: 0.825 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP8
封裝: 0.300 INCH, MDIP-8
文件頁數(shù): 1/10頁
文件大?。?/td> 262K
代理商: LM4862N
LM4862
675 mW Audio Power Amplifier with Shutdown Mode
General Description
The LM4862 is a bridge-connected audio power amplifier ca-
pable of delivering typically 675 mW of continuous average
power to an 8
load with 1% (THD) from a 5V power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. Since the LM4862 does not require
output coupling capacitors, bootstrap capacitors, or snubber
networks, it is optimally suited for low-power portable sys-
tems.
The LM4862 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
The unity-gain stable LM4862 can be configured by external
gain-setting resistors.
Key Specifications
n
THD at 500 mW continuous average
output power at 1 kHz into 8
n
Output power at 10% THD+N at
1 kHz into 8
n
Shutdown Current
1% (max)
825 mW (typ)
0.7 μA (typ)
Features
n
No output coupling capacitors, bootstrap capacitors or
snubber circuits are necessary
n
Small Outline or DIP packaging
n
Unity-gain stable
n
External gain configuration capability
n
Pin compatible with LM4861
Applications
n
Portable Computers
n
Cellular Phones
n
Toys and Games
Typical Application
Connection Diagram
Boomer
is a registered trademark of National Semiconductor Corporation.
DS012342-1
Application Information
section for information
*Refer to the
FIGURE 1. Typical Audio Amplifier Application Circuit
Small Outline and DIP Package
DS012342-2
Top View
Order Number LM4862M, LM4862N
See NS Package Number M08A or N08E
May 1997
L
1999 National Semiconductor Corporation
DS012342
www.national.com
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