National Semiconductor | High-performance Analog

 

 LM4752   
Stereo 11W Audio Power Amplifier 		Click link to Download

Features

  • Drives 4Ω and 8Ω loads
  • Internal gain resistors (AV = 34 dB)
  • Minimum external component requirement
  • Single supply operation
  • Internal current limiting
  • Internal thermal protection
  • Compact 7-lead TO-220 package
  • Low cost-per-watt
  • Wide supply range 9V - 40V

    • Description

    The LM4752 is a stereo audio amplifier capable of delivering 11W per channel of continuous average output power to a 4Ω load, or 7W per channel into 8Ω using a single 24V supply at 10% THD+N.

    The LM4752 is specifically designed for single supply operation and a low external component count. The gain and bias resistors are integrated on chip, resulting in a 11W stereo amplifier in a compact 7 pin TO220 package. High output power levels at both 20V and 24V supplies and low external component count offer high value for compact stereo and TV applications. A simple mute function can be implemented with the addition of a few external components.

    Key Specification

  • Output power at 10% THD+N with 1kHz into 4Ω at VCC = 24V:  11W (typ)
  • Output power at 10% THD+N with 1kHz into 8Ω at VCC = 24V:  7W (typ)
  • Closed loop gain: 34dB (typ)
  • PO at 10% THD+N @ 1 kHz into 4Ω single-ended TO-263 package at VCC = 12V: 2.5W (typ)
  • PO at 10% THD+N @ 1kHz into 8Ω bridged TO-263 package at VCC = 12V: 5W (typ)


    • Applications

  • Compact stereos
  • Stereo TVs
  • Mini component stereos
  • Multimedia speakers




    •  

    ParametersValues
    Channels 2 Channels
    Mono/Stereo Mono
    User Supply 20 Volt
    Supply Range +10 - +32
    Slew Rate 2 Volts/usec
    Power@ 4Ohms, 1% THD 6 Watt
    Power@ 8Ohms, 1% THD 3.6 Watt
    Power@ 4Ohms, 10% THD 11 Watt
    Power@ 8Ohms, 10% THD 7 Watt
    THD 0.25 %
    THD Conditions Po=0.125W @ Vs=6V , RL=8ohms
    Temperature Min 0 deg C
    Temperature Max 70 deg C

    Datasheets
    TitleSizeDateOther
    Language
    LM4752 Stereo 11W Audio Power Amplifier521
    Kbytes    		14-May-08日本語  

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM4752TS/NOPB

    LM4752TS

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide63
    DIGI-KEYWorldwide3105
    FARNELLEurope and Asia129
    MOUSERWorldwide204
    NEWARKAmericas42
    RS COMPONENTSWorldwide43
    TAYLORAmericas7998
    		$1.19 each at 1K+ pcsrail
    of
    45

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM4752T
    		LM4766T
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008

    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 LM4752.

    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 LM4752 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LM4752TS/NOPB

    LM4752TS
    		1608.332
    1609.822
    		TO-26373
    3    		245
    235    		DetailDownloadN/A
    		NSUZXYTTE#
    LM4752TS

    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 LM4752.

    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 LM4752 is located at RoHS Status.

    CAD Symbols and Models
    Download LM4752 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM4752TSSLM04404600353250011002356520

    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 LM4752.

    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 LM4752 is located at RoHS Status.

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM4752T
    		LM4766T
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008

    [Information as of 9-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation