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MFG:NS  Package Cooled:SMD  

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Part Number: LM4863

 

MFG: NS

Package Cooled: SMD

 

Description: The LM4863 is a dual bridge-connected audio power ampli- fier which, when connected to a 5V supply, will deliver 2.2W t...


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LM4863 General Description


The LM4863 is a dual bridge-connected audio power ampli- fier which, when connected to a 5V supply, will deliver 2.2W toa4? load (Note 1) or 2.5W to a 3? load (Note 2)with less than 1.0% THD+N. In addition, the headphone input pin al- lows the amplifiers to operate in single-ended mode to drive stereo headphones.

Boomeraudiopoweramplifiersweredesignedspecificallyto provide high quality output power from a surface mount package while requiring few external components. To simplify audio system design, the LM4863 combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.

The LM4863 features an externally controlled, low-power consumption shutdown mode, a stereo headphone amplifier mode, and thermal shutdown protection. It also utilizes circuitry to reduce "clicks and pops" during device turn-on. Note 1: An LM4863MTE which has been properly mounted to the circuit
board will deliver 2.2W into 4?. The other package options for the LM4863 will deliver 1.1W into 8?. See the Application Information section for LM4863MTE usage information.

Note 2: An LM4863MTE which has been properly mounted to the circuit board and forced-air cooled will deliver 2.5W into 3?.

LM4863 Maximum Ratings

Supply Voltage ...........................................6.0V
Storage Temperature............. -650C to +1500C
Input Voltage ......................-0.3V to VDD +0.3V
Power Dissipation (Note 10)... Internally limited
ESD Susceptibility (Note 11) ....................2000V
ESD Susceptibility (Note 12) ......................200V
Junction Temperature ..............................1500C
Solder Information
Small Outline Package
Vapor Phase (60 sec.)............................. 2150C
Infrared (15 sec.) ....................................2200C

LM4863 Features

n Stereo headphone amplifier mode
n "Click and pop" suppression circuitry
n Unity-gain stable
n Thermal shutdown protection circuitry
n Exposed-DAP TSSOP, TSSOP, SOIC and DIP packaging available

LM4863 Typical Application

n Multimedia monitors
n Portable and desktop computers
n Portable televisions

LM4863 Connection Diagram

LM4863 Connection Diagram

LM4863 datasheet

LM4863
PDF/DataSheet Download

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