LM4871M ,3W Audio Power Amplifier with Shutdown ModeLM4871 3W Audio Power Amplifier with Shutdown ModeJanuary 2003LM48713W Audio Power Amplifier with S ..
LM4871MM ,3W Audio Power Amplifier with Shutdown ModeGeneral Description Key Specificationsn PO at 10% THD+N, 1kHzThe LM4871 is a mono bridged audio pow ..
LM4871MM/NOPB ,Boomer Series: 3W Audio Amplifier with Shutdown Mode 8-VSSOP -40 to 85features include thermal shutdown– LM4871LD: 3Ω , 4Ω Loads; 3W (typ),protection, unity-gain stabili ..
LM4871MMX ,3W Audio Power Amplifier with Shutdown ModeFeaturesfew external components and operate on low supply volt-n No output coupling capacitors, boo ..
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LP2982IM5X-5.0 ,Micropower 50 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesFeaturesn Ultra low dropout voltageThe LP2982 is a 50 mA, fixed-output voltage regulator de-signedt ..
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LM4871LD-LM4871M-LM4871MM-LM4871MMX-LM4871MX-LM4871N
3W Audio Power Amplifier with Shutdown Mode
LM4871 Audio Power Amplifier with Shutdown Mode
General DescriptionThe LM4871isa mono bridged audio power amplifier ca-
pableof delivering 3Wof continuous average power intoa load with less than 10% THD when poweredbya5V
power supply (Note1).To conserve powerin portable appli-
cations, the LM4871’s micropower shutdown mode(IQ=
0.6µA, typ)is activated when VDDis appliedto the SHUT-
DOWN pin.
Boomer audio power amplifiers are designed specificallyto
provide high power, high fidelity audio output. They require
few external components and operateon low supply volt-
ages from 2.0Vto 5.5V. Sincethe LM4871 doesnot require
output coupling capacitors, bootstrap capacitors,or snubber
networks,itis ideally suitedfor low-power portable systems
that require minimum volume and weight.
Additional LM4871 features include thermal shutdown pro-
tection, unity-gain stability, and external gain set.
Note1:An LM4871LDthat hasbeen properlymountedtoa circuit boardwill
deliver3Winto3Ω(at 10% THD).The other package optionsforthe LM4871
will deliver 1.5Winto8Ω(at 10% THD). Seethe
Application Informationsectionsfor further information concerningthe LM4871LD, LM4871MM,
LM4871M,andthe LM4871N.
Key Specifications POat 10% THD+N, 1kHz LM4871LD:3Ω ,4Ω loads 3W (typ), 2.5W (typ) All other LM4871 packages:8Ω load 1.5W (typ) Shutdown current 0.6µA (typ) Supply voltage range 2.0Vto 5.5V THDat 1kHzat 1W continuous average output power
into8Ω 0.5% (max)
Features No output coupling capacitors, bootstrap capacitors,or
snubber circuits required Unity-gain stable LLP, MSOP, SO,or DIP packaging External gain configuration capability Pin compatible with the LM4861
Applications Portable computers Desktop computers Low voltage audio systems
Connection Diagrams
MSOP, Small Outline, and DIP Package LLP PackageTop View
Order Number LM4871MM, LM4871M,or LM4871N
SeeNS Package Number MUA08A, M08A,or N08E
Top View
Order Number LM4871LD
See NS Package Number LDC08A
January 2003
LM4871
Audio
Power
Amplifier
with
Shutdown
Mode
