National Semiconductor | High-performance Analog

 

 LM3886   

High-Performance 68W Audio Power Amplifier with Mute
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Features
  • 68W cont. avg. output power into 4 at VCC = ±28V
  • 38W cont. avg. output power into 8 at VCC = ±28V
  • 50W cont. avg. output power into 8 at VCC = ±35V
  • 135W instantaneous peak output power capability
  • Signal-to-Noise Ratio >= 92dB
  • An input mute function
  • Output protection from a short to ground or to the supplies via internal current limiting circuitry
  • Output over-voltage protection against transients from inductive loads
  • Supply under-voltage protection, not allowing internal biasing to occur when |VEE| + |VCC| <= 12V, thus eliminating turn-on and turn-off transients
  • 11-lead TO-220 package
  • Wide supply range 20V - 94V
  • Description

    The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4 load and 38W into 8 with 0.1% THD+N from 20Hz-20kHz.

    The performance of the LM3886, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe™) protection circuitry, puts it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPiKe protection means that these parts are completely safeguarded at the output against overvoltage, undervoltage, overloads, including shorts to the supplies, thermal runaway, and instantaneous temperature peaks.

    The LM3886 maintains an excellent signal-to-noise ratio of greater than 92dB with a typical low noise floor of 2.0µV. It exhibits extremely low THD+N values of 0.03% at the rated output into the rated load over the audio spectrum, and provides excellent linearity with an IMD (SMPTE) typical rating of 0.004%.


    Applications

  • Component stereo
  • Compact stereo
  • Self-powered speakers
  • Surround-sound amplifiers
  • High-end stereo TVs
  • Also Recommended
    LM4780Stereo Or Mono



    Typical Application
    click for larger image


    Connection Diagram
    click for larger image



    Typical Performance
    *click for larger image


     

    ParametersValues
    Output Current 11500 mA
    Offset Voltage max, 25C 10 mV
    Gain Bandwidth 3 MHz
    Supply Min 18 Volt
    Supply Max 84 Volt
    Supply Current Per Channel 50 mA
    PowerWise Rating 2 16666.7 uA/MHz
    Slew Rate 19 Volts/usec
    Input OutputType Not Rail to Rail
    Max Input Bias Current 1000 nA
    Shut down No
    Special Features AvCl>10
    Function Op Amp
    Channels 1 Channels
    Temperature Min 0 deg C
    Temperature Max 70 deg C

    Datasheets
    TitleSizeDateOther
    Language
    LM3886 High-Performance 68W Audio Power Amplifier with Mute852
    Kbytes
    29-Oct-03日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1192: Application Note 1192 Overture Series High Power Solutions548
    Kbytes
    15-Jun-04 
    AN-898: Application Note 898 Audio Amplifiers Utilizing: SPiKe Protection1412
    Kbytes
    20-Sep-02日本語

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM3886T/NOPB

    LM3886T

    RoHS Status


    TO-220
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide6420
    AVNET-EMWorldwide81
    DIGI-KEYWorldwide1987
    FARNELLEurope and Asia2739
    MOUSERWorldwide161
    NEWARKAmericas720
    RS COMPONENTSWorldwide159
    RSL MICROAsia Pacific5900
    TAYLORAmericas6422
    $3.00 each at 1K+ pcsrail
    of
    20
    LM3886TF/NOPB

    LM3886TF

    RoHS Status


    ISOLATED TO220
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide9744
    AVNET-EMWorldwide681
    DIGI-KEYWorldwide1732
    FARNELLEurope and Asia1703
    MOUSERWorldwide220
    NEWARKAmericas430
    RS COMPONENTSWorldwide93
    RSL MICROAsia Pacific20400
    TAYLORAmericas9744
    $3.00 each at 1K+ pcsrail
    of
    20

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for LM3886.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LM3886 is located at RoHS Status.

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    LM3886T/NOPB

    LM3886T
    5244.76
    5249.711
    TO-220111
    1
    NA
    NA
    DetailDownloadN/A
    NSUZXYTTE#
    LM3886T
    LM3886TF/NOPB

    LM3886TF
    5995.061
    6000.012
    ISOLATED TO220111
    1
    NA
    NA
    DetailDownloadN/A
    NSUZXYTTE#
    LM3886TF

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for LM3886.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LM3886 is located at RoHS Status.

    Design Tools
    TitleSizeDate
    Amplifiers Selection Guide software for Windows  

    CAD Symbols and Models
    Download LM3886 CAD Symbols
     Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM3886THV7000142550015825003449038695
    LM3886TFHV7000142550015825003449038695

    Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

    For more information on Reliability Metrics, please click here.


    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for LM3886.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LM3886 is located at RoHS Status.

    [Information as of 3-Feb-2012]