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LM4876M-LM4876MM-LM4876MMX-LM4876MX Fast Delivery,Good Price
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LM4876MXNSN/a280000avai1.1W Audio Power Amplifier with Logic Low Shutdown
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LM4876M-LM4876MM-LM4876MMX-LM4876MX
1.1W Audio Power Amplifier with Logic Low Shutdown
LM4876
1.1W Audio Power Amplifier with Logic Low Shutdown
General Description

The LM4876isa single5V supply bridge-connected audio
power amplifier capableof delivering 1.1W (typ)of continu-
ous average powertoan8Ω load with 0.5% THD+N.
Like other audio amplifiersinthe Boomer series,the LM4876 designed specificallyto provide high quality output power
witha minimal amountof external components. The LM4876
does not require output coupling capacitors, bootstrap ca-
pacitors,or snubber networks.Itis perfectly suitedfor low-
power portable systems.
The LM4876 featuresan active low externally controlled,
micro-power shutdown mode. Additionally,the LM4876 fea-
turesan internal thermal shutdown protection mechanism.
For PCB space efficiency,the LM4876is availablein MSOP
and SO surface mount packages.
The unity-gain stable LM4876’s closed loop gainisset using
external resistors.
Key Specifications
THD+Nat 1kHzfor 1W continuous
average output power into8Ω 0.5% (max) Output powerat 1kHz into8Ω
with 10% THD+N 1.5W (typ) Shutdown current 0.01µA (typ) Supply voltage range 2.0Vto 5.5V
Features
Doesnot require output coupling capacitors, bootstrap
capacitors,or snubber circuits 10-pin MSOP and 8-pin SO packages Unity-gain stable External gainset
Applications
Mobile Phones Portable Computers Desktop Computers Low-Voltage Audio Systems
Typical Application

FIGURE1. Typical LM4876 Audio Amplifier Application Circuit.
Numbersin() are specificto the 10-pin MSOP package
March 2003
LM4876
1.1W
Audio
Power
Amplifier
with
Logic
Low
Shutdown
ic,good price


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