LM4862N ,675 mW Audio Power Amplifier with Shutdown ModeApplicationsn Portable Computersn Cellular Phonesn Toys and GamesTypical Application Connection Dia ..
LM4863 ,Dual 1.1W Audio Amplifier plus Stereo Headphone FunctionApplicationscan be configured by external gain-setting resistors.YMultimedia MonitorsYPortable and ..
LM4863LQ ,Dual 2.2W Audio Amplifier Plus Stereo Headphone FunctionGeneral Description Key Specificationsn P at 1% THD+NThe LM4863 is a dual bridge-connected audio po ..
LM4863LQ ,Dual 2.2W Audio Amplifier Plus Stereo Headphone Functionfeatures an externally controlled, low-powern “Click and pop” suppression circuitryconsumption shut ..
LM4863LQX ,Dual 2.2W Audio Amplifier Plus Stereo Headphone Functionfeatures an externally controlled, low-powern “Click and pop” suppression circuitryconsumption shut ..
LM4863M ,Dual 2.2W Audio Amplifier Plus Stereo Headphone Functionfeatures an externally controlled, low-powern “Click and pop” suppression circuitryconsumption shut ..
LP2981IM5X-2.5 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesFeaturesn Ultra low dropout voltageThe LP2981 is a 100 mA, fixed-output voltage regulatordesigned s ..
LP2981IM5X-2.7 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2981 Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesJanuary 2003LP ..
LP2981IM5X-2.8 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2981 Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesJanuary 2003LP ..
LP2981IM5X-2.9 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesFeaturesn Ultra low dropout voltageThe LP2981 is a 100 mA, fixed-output voltage regulatordesigned s ..
LP2981IM5X-3.0 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesApplicationsPrecision Output. 0.75% tolerance output voltages avail-n Cellular Phoneable (Agrade).n ..
LP2981IM5X-3.1 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2981 Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesJanuary 2003LP ..
LM4862N
675 mW Audio Power Amplifier with Shutdown Mode
LM4862
675 mW Audio Power Amplifier with Shutdown Mode
General DescriptionThe LM4862is abridge-connected audio poweramplifierca-
pableof delivering typically675 mWof continuous average
powertoan8Ω loadwith1% (THD) froma5V powersupply.
Boomer audiopower amplifiers were designed specificallyto
provide high quality output powerwitha minimal amountof
external components. Sincethe LM4862 doesnot require
output coupling capacitors, bootstrap capacitors,or snubber
networks,itis optimally suitedfor low-power portable sys-
tems.
The LM4862 featuresan externally controlled, low-power
consumption shutdown mode,aswellasan internal thermal
shutdown protection mechanism.
The unity-gain stable LM4862canbe configuredby external
gain-setting resistors.
Key Specifications THDat500 mW continuous average
output powerat1kHzinto8Ω 1% (max) Output powerat 10% THD+NatkHzinto8Ω 825mW (typ) Shutdown Current 0.7μA (typ)
FeaturesNo output coupling capacitors, bootstrap capacitorsor
snubber circuitsare necessary Small OutlineorDIP packaging Unity-gain stable External gain configuration capabilityPin compatible with LM4861
Applications Portable Computers Cellular Phones Toysand Games
Typical Application Connection DiagramBoomer®isa registeredtrademarkofNationalSemiconductor Corporation.
DS012342-1
*Refertothe
ApplicationInformationsectionfor information
concerning proper selectionoftheinput coupling capacitor.
FIGURE1. Typical Audio Amplifier Application Circuit
Small OutlineandDIP PackageDS012342-2
Top View
Order Number LM4862M, LM4862N
SeeNS Package Number M08Aor N08EMay 1997
LM4862
Audio
Power
Amplifier
with
Shutdown
Mode©1999 National Semiconductor Corporation DS012342
