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LM4878  Product Folder

1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low
Generic P/N 4878
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics

Parametric Table Parametric Table
Temperature Min (deg C) -40 
Temperature Max (deg C) 85 
Channels (Channels) 1 
User Supply (Volt) 2.60 
Supply Range +2.0 - +5.5 V 
PowerAtFourOhms OnePercentTHD (Watt) .55 
PowerAtEightOhms OnePercentTHD (Watt) .32 
PowerAtFourOhms TenPercentTHD (Watt) .75 
PowerAtEightOhms TenPercentTHD (Watt) .43 
SNR (dB) 98 
SNR Conditions - 
PSRR (dB) 65 
PSRR Conditions - 
THD (%) .10 
THD Conditions Po=.25 W @Vs=5V, R=8ohms, 20Hz-20kHz 
Audio Mux - 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4878 Boomer ® Audio Power Amplifier Series 1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low 515 Kbytes 7-Oct-02 View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LM4878IBPmicroSMD8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.70reel
of
250		XVG
I D
10-12 weeks1000000
LM4878IBPXmicroSMD8StatusFull productionN/AN/A 1K+$0.70reel
of
3000		XVG
I D
10-12 weeks100000
LM4878ITPmicroSMD86StatusFull production N/AN/ASamples  reel
of
N/A		XVG
I D8
10 weeks0
LM4878ITPXmicroSMD86StatusFull production N/AN/A   reel
of
N/A		XVG
I D8
10-12 weeks50000

General Description

The LM4878 is a bridge-connected audio power amplifier capable of delivering 1 W of continuous average power to an 8 load with less than .2% (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 LM4878 does not require output coupling capacitors or bootstrap capacitors. It is optimally suited for low-power portable applications.

The LM4878 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4878 can be configured by external gain-setting resistors.

Features

  • Internal pulldown resistor on shutdown.
  • micro SMD package (see App. note AN-1112)
  • 5V - 2V operation
  • No output coupling capacitors or bootstrap capacitors.
  • Unity-gain stable
  • External gain configuration capability

Key Specification

Power Output at 0.2% THD 1 W (typ)
Shutdown Current0.01 µA (typ)

Applications

  • Cellular Phones
  • Portable Computers
  • Low Voltage Audio Systems

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4878IBPCS06508800006000006169643205
LM4878IBPXCS06508800006000006169643205
LM4878ITPCS06508800006000006169643205
LM4878ITPXCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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