HOME HOME SELECT DESIGN BUY EXPLORE About Us Support My Profile Search

 Products > Audio Products > Boomer Audio Power Amplifiers <6V,<3W > LM4876

LM4876  Product Folder

1.1W Audio Power Amplifier with Logic Low Shutdown
Generic P/N 4876
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) 1.80 
PowerAtEightOhms OnePercentTHD (Watt) 1.20 
PowerAtFourOhms TenPercentTHD (Watt) 2.30 
PowerAtEightOhms TenPercentTHD (Watt) 1.50 
SNR (dB) 98 
SNR Conditions - 
PSRR (dB) 65 
PSRR Conditions - 
THD (%) .25 
THD Conditions Po=1 W@ Vs=5V, R=8ohms, 20Hz-20kHz 
Audio Mux - 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4876 Boomer ® Audio Power Amplifier Series 1.1W Audio Power Amplifier with Logic Low Shutdown 322 Kbytes 19-Mar-03 View Online Download Receive via Email
LM4876 Boomer ® Audio Power Amplifier Series 1.1W Audio Power Amplifier with Logic Low Shutdown (JAPANESE)
 170 Kbytes   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
LM4876MSOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.43rail
of
95		NSXYTT
LM487
6M
3-6 weeks50000
LM4876MXSOIC NARROW8StatusFull productionN/AN/A 1K+$0.43reel
of
2500		NSXYTT
LM487
6M
3-6 weeks15000
LM4876MMMINI SOIC10StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.50reel
of
1000		ZXTT
G76
13-15 weeks50000
LM4876MMXMINI SOIC10StatusFull productionN/AN/A 
Buy Now		1K+$0.50reel
of
3500		ZXTT
G76
13-15 weeks500000
LM4876 MDCUnpackaged DieFull productionN/AN/ASamples  tray
of
N/A		-
N/A0
LM4876 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0

General Description

The LM4876 is a single 5V supply bridge-connected audio power amplifier capable of delivering 1.1W (typ) of continuous average power to an 8 load with 0.5% THD+N.

Like other audio amplifiers in the Boomer series, the LM4876 is designed specifically to provide high quality output power with a minimal amount of external components. The LM4876 does not require output coupling capacitors, bootstrap capacitors, or snubber networks. It is perfectly suited for low-power portable systems.

The LM4876 features an active low externally controlled, micro-power shutdown mode. Additionally, the LM4876 features an internal thermal shutdown protection mechanism. For PCB space efficiency, the LM4876 is available in MSOP and SO surface mount packages.

The unity-gain stable LM4876's closed loop gain is set using external resistors.

Features

  • Does not require output coupling capacitors, bootstrap capacitors, or snubber circuits
  • 10-pin MSOP and 8-pin SO packages
  • Unity-gain stable
  • External gain set

Key Specification

THD+N at 1kHz for 1W continuous average output power into 80.5% (max)
Output power at 1kHz into 8 with 10% THD+N1.5W (typ)
Shutdown current0.01µA (typ)
Supply voltage range2.0V to 5.5V

Applications

  • Mobile Phones
  • Portable Computers
  • Desktop 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
LM4876 MDCCS06508800006000006169643205
LM4876 MWCCS06508800006000006169643205
LM4876MCS06508800006000006169643205
LM4876MXCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

Website Guide • About "Cookies" • National is QS 9000 Certified • Privacy/Security Statement • Contact Us/Feedback
Site Terms & Conditions of Use • Copyright 2003© National Semiconductor Corporation