National Semiconductor | High-performance Analog

 

 LM63   

±1°C/±3°C Accurate Remote Diode Digital Temperature Sensor with Integrated Fan Control
Click link to Download

Features

  • Accurately senses diode-connected 2N3904 transistors or thermal diodes on-board large processors or ASIC's
  • Accurately senses its own temperature
  • Factory trimmed for Intel Pentium 4 and Mobile Pentium 4 Processor-M thermal diodes
  • Integrated PWM fan speed control output
  • Acoustic fan noise reduction with User-programmable 8-step Lookup Table
  • Multi-function, user-selectable pin for either ^ALERT output, or Tachometer input, functions
  • Tachometer input for measuring fan RPM
  • Smart-Tach modes for measuring RPM of fans with pulse-width-modulated power as shown in typical application
  • Offset register can adjust for a variety of thermal diodes
  • 10 bit plus sign remote diode temperature data format, with 0.125°C resolution
  • SMBus 2.0 compatible interface, supports TIMEOUT
  • LM86-compatible pinout
  • LM86-compatible register set
  • 8-pin SOIC package
  • Description

    The LM63 is a remote diode temperature sensor with integrated fan control. The LM63 accurately measures: (1) its own temperature and (2) the temperature of a diode-connected transistor, such as a 2N3904, or a thermal diode commonly found on Computer Processors, Graphics Processor Units (GPU) and other ASIC's. The LM63 remote temperature sensor's accuracy is factory trimmed for the series resistance and 1.0021 non-ideality of the Intel 0.13 µm Pentium 4 and Mobile Pentium 4 Processor-M thermal diode. The LM63 has an offset register to correct for errors caused by different non-ideality factors of other thermal diodes. .

    The LM63 also features an integrated, pulse-width-modulated (PWM), open-drain fan control output. Fan speed is a combination of the remote temperature reading, the lookup table and the register settings. The 8-step Lookup Table enables the user to program a non-linear fan speed vs. temperature transfer function often used to quiet acoustic fan noise.

    Key Specification
    Remote Diode Temp Accuracy (with quantization error)
    Ambient Temp Diode Temp IPWML Max Version Max Error
    30 to 50°C 60 to 100°C 5 mA LM63C ±1.0°C
    30 to 50°C 60 to 100°C 5 mA LM63D ±3.0°C
    0 to 85°C 25 to 125°C 8 mA All ±3.0°C
    Local Temp Accuracy (includes quantization error)
    Ambient Temp Max Error
    25°C to 125°C ±3.0°C
    Supply Voltage 3.0 V to 3.6 V 
    Supply Current 1.3 mA (typ) 


    Applications

  • Computer Processor Thermal Management

  • (Laptop, Desktop, Workstations, Servers)
  • Graphics Processor Thermal Management
  • Electronic Test Equipment
  • Projectors
  • Office Equipment
  • Industrial Controls
  • Also Recommended
    LM96163Improved Fan Control Functions With TruTherm Beta Compensation


    Typical Application

    Parameters / ValuesLM63 LM96163
    Temp Resolution11-bit/0.125degC 11-bit/0.125degC
    Remote Diode Thermal Sensors1 1
    TruTherm(TM) Beta CompensationNo Yes
    Analog InputsUndefined
    ADC ResolutionUndefined bits
    Fan Speed Inputs1 1
    Fan Control Output(s)1 PWM 1
    Fan Control MethodLookup Table LUT 12 point
    VID InputsUndefined
    Dynamic VID VCCP MonitoringUndefined
    Bidirectional PROCHOT SupportUndefined
    GPIOsUndefined
    Interrupt Outputs1 2
    Reference VoltageUndefined
    Temperature Accuracy (+/-)1 deg C 0.75 deg C
    Temperature Min0 deg C -40 deg C
    Temperature Max125 deg C 125 deg C
    Interface TypeSMBus SMBus
    Supply Min3 Volt 3.0 Volt
    Supply Max3.6 Volt 3.6 Volt
    Quiescent Current1.3 mA 0.456 mA
    Resolution11 bits 13 bits
    Temperature Accuracy (+/-)1 deg C 0.75 deg C
    AutomotiveYes Yes
    PowerWiseYes Yes

    Datasheets
    TitleSizeDateOther
    Language
    LM63 ±1°C/±3°C Accurate Remote Diode Digital Temperature Sensor with Integrated Fan Control688
    Kbytes
    2-Dec-10日本語  


    Other Technical Documents
    TitleTypeDate
    Silicon Temperature Sensors Protect Your SystemTechnology Edge 2004-05-01

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM63CIMA/NOPB

    LM63CIMA

    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1615
    AVNET-EMWorldwide280
    DIGI-KEYWorldwide0
    FARNELLEurope and Asia160
    MOUSERWorldwide760
    RS COMPONENTSWorldwide30
    TAYLORAmericas1615
    $1.05 each at 1K+ pcsrail
    of
    95
    LM63CIMAX/NOPB

    LM63CIMAX

    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide9980
    DIGI-KEYWorldwide0
    MOUSERWorldwide2490
    TAYLORAmericas9980
    TECHMOSAAsia Pacific2500
    $1.05 each at 1K+ pcsreel
    of
    2500
    LM63DIMA/NOPB

    LM63DIMA

    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide296
    AVNET-EMWorldwide465
    DIGI-KEYWorldwide149
    MOUSERWorldwide376
    TAYLORAmericas296
    $1.00 each at 1K+ pcsrail
    of
    95
    LM63DIMAX/NOPB

    LM63DIMAX

    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.00 each at 1K+ pcsreel
    of
    2500

    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 LM63.

    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 LM63 is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM63EVAL/NOPB

    LM63 - ±1°C/±3°C Accurate Remote Diode Digital Temperature Sensor with Integrated Fan ControlFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $88.00 each1

    Description:

    The LM63 is a remote diode temperature sensor with integrated fan control. The LM63 accurately measures: (1) its own temperature and (2) the temperature of a diode-connected transistor, such as a 2N3904, or a thermal diode commonly found on Computer Processors, Graphics Processor Units (GPU) and other ASIC's. the LM63EVAL is its evaluation board.

    Features:

    • Accurately senses diode-connected 2N3904 transistors or thermal diodes on-board large processors or ASIC's
    • Accurately senses its own temperature
    • Factory trimmed for Intel Pentium 4 and Mobile Pentium 4 Processor-M thermal diodes
    • Integrated PWM fan speed control output
    • Acoustic fan noise reduction with User-programmable 8-step Lookup Table
    • Multi-function, user-selectable pin for either ^ALERT output, or Tachometer input, functions
    • Tachometer input for measuring fan RPM
    • Smart-Tach modes for measuring RPM of fans with pulse-width-modulated power as shown in typical application
    • Offset register can adjust for a variety of thermal diodes
    • 10 bit plus sign remote diode temperature data format, with 0.125°C resolution
    • SMBus 2.0 compatible interface, supports TIMEOUT
    • LM86-compatible pinout
    • LM86-compatible register set
    • LM63CIM-16 with −16°C offset remote reading to allow measurement of remote temperatures > 127.875°C
    • 8-pin SOIC package

    Contents:

    • Evaluation Board
    • User's guide
    • Thank you letter
    • Evaluation board license agreement



    National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

    Lead Free product status is available through the search tool located here

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    LM63CIMA/NOPB

    LM63CIMA
    69.761
    70.001
    SOIC NARROW81
    1
    260
    235
    DetailDownloadN/A
    NSZXTT
    LM63
    CIMA
    LM63CIMAX/NOPB

    LM63CIMAX
    69.761
    70.001
    SOIC NARROW81
    1
    260
    235
    DetailDownloadN/A
    NSZXTT
    LM63
    CIMA
    LM63DIMA/NOPB

    LM63DIMA
    69.761
    70.001
    SOIC NARROW81
    1
    260
    235
    DetailDownloadN/A
    NSZXTT
    LM63
    DIMA
    LM63DIMAX/NOPB

    LM63DIMAX
    69.761
    70.001
    SOIC NARROW81
    1
    260
    235
    DetailDownloadN/A
    NSZXTT
    LM63
    DIMA

    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 LM63.

    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 LM63 is located at RoHS Status.

    Design Tools
    TitleSizeDate
    SensorEval Software for Thermal Mangement Products  

    CAD Symbols and Models
    Download LM63 CAD Symbols
     Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM63CIMACMOS70213010015840003449464325
    LM63CIMAXCMOS70213010015840003449464325
    LM63DIMACMOS70213010015840003449464325
    LM63DIMAXCMOS70213010015840003449464325

    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 LM63.

    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 LM63 is located at RoHS Status.

    [Information as of 9-Feb-2012]