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 Products > Audio Products > Boomer Audio Power Amplifiers <6V,<3W > LM4861

LM4861  Product Folder

1.1W Audio Power Amplifier with Shutdown Mode
  

See Also:		   
LM4834 - combines LM4861 & LM4880
Generic P/N 4861
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) 5 
Supply Range +2.0 - +5.5 V 
PowerAtFourOhms OnePercentTHD (Watt) 1.55 
PowerAtEightOhms OnePercentTHD (Watt) 1.15 
PowerAtFourOhms TenPercentTHD (Watt) 1.90 
PowerAtEightOhms TenPercentTHD (Watt) 1.50 
SNR (dB) 98 
SNR Conditions Pout=1W 
PSRR (dB) 65 
PSRR Conditions - 
THD (%) .72 
THD Conditions Po=1W @ Vs=5V, R=8 ohms 
Audio Mux - 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4861 Boomer ® Audio Power Amplifier Series 1.1W Audio Power Amplifier with Shutdown Mode 278 Kbytes 4-Feb-03 View Online Download Receive via Email
LM4861 Boomer ® Audio Power Amplifier Series 1.1W Audio Power Amplifier with Shutdown Mode (JAPANESE)
 436 Kbytes   View Online Download Receive via Email

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Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LM4861MSOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.59rail
of
95		NSXYTT
LM
4861M
3-6 weeks20000
LM4861MXSOIC NARROW8StatusFull productionN/AN/A 
Buy Now 		1K+$0.59reel
of
2500		NSXYTT
LM
4861M
3-6 weeks50000
LM4861 MDAUnpackaged DieFull productionN/AN/ASamples  tray
of
N/A		-
N/A0
LM4861 MWAWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0

General Description

The LM4861 is a bridge-connected audio power amplifier capable of delivering 1.1W of continuous average power to an 8 load with 1% THD+N using a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4861 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is optimally suited for low-power portable systems.

The LM4861 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4861 can be configured by external gain-setting resistors for differential gains of up to 10 without the use of external compensation components. Higher gains may be achieved with suitable compensation.

Features

  • No output coupling capacitors, bootstrap capacitors, or snubber circuits are necessary
  • Small Outline (SO) packaging
  • Compatible with PC power supplies
  • Thermal shutdown protection circuitry
  • Unity-gain stable
  • External gain configuration capability

Key Specification

THD+N for 1kHz at 1W continuous average output power into 81.0% (max)
Output power at 10% THD+N at 1kHz into 8 1.5W (typ)
Shutdown Current0.6µA (typ)

Applications

  • Personal computers
  • Portable consumer products
  • Self-powered speakers
  • Toys and games

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4861 MDACS06508800006000006169643205
LM4861 MWACS06508800006000006169643205
LM4861MCS06508800006000006169643205
LM4861MXCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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