National Semiconductor | High-performance Analog

 

 LM5112   

Tiny 7A MOSFET Gate Driver
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Features
  • Compound CMOS and bipolar outputs reduce output current variation
  • 7A sink/3A source current
  • Fast propagation times (25 ns typical)
  • Fast rise and fall times (14 ns/12 ns rise/fall with 2 nF load)
  • Inverting and non-inverting inputs provide either configuration with a single device
  • Supply rail under-voltage lockout protection
  • Dedicated input ground (IN_REF) for split supply or single supply operation
  • Power Enhanced 6-pin LLP package (3.0mm x 3.0mm) or thermally enhanced MSOP8-EP package
  • Output swings from VCC to VEE which can be negative relative to input ground
  • Description

    The LM5112 MOSFET gate driver provides high peak gate drive current in the tiny LLP-6 package (SOT23 equivalent footprint) or an 8-Lead exposed-pad MSOP package, with improved power dissipation required for high frequency operation. The compound output driver stage includes MOS and bipolar transistors operating in parallel that together sink more than 7A peak from capacitive loads. Combining the unique characteristics of MOS and bipolar devices reduces drive current variation with voltage and temperature. Under-voltage lockout protection is provided to prevent damage to the MOSFET due to insufficient gate turn-on voltage. The LM5112 provides both inverting and non-inverting inputs to satisfy requirements for inverting and non-inverting gate drive with a single device type.

    Also Recommended
    LM5110Dual 5A Compound Gate Driver With Negative Output Voltage Capability
    LM5111Dual 5A Low Side Compound Gate Driver



    Typical Application
    *click for larger image


    Block Diagram
    click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLM5112 LM5110 LM5111
    Topology Other topologies, Forward, Push-pull Other topologies, Forward, Push-pull Other topologies, Forward, Push-pull
    Input Max VoltageUndefined Volt
    Supply Min3.5 Volt 3.5 Volt 3.5 Volt
    Supply Max14 Volt 14 Volt 14 Volt
    Peak Sink Current7 Amp 5 Amp 5 Amp
    Peak Source Current3 Amp 3 Amp 3 Amp
    Output Rise Time (tr)14 ns 15 ns 15 ns
    Output Fall Time tf12 ns 15 ns 12 ns
    Bottom Driver Prop Delay25 ns 25 ns 25 ns
    PulseWidth MinUndefined ns Undefined ns Undefined ns
    Quiescent Current1 mA 1 mA 1 mA
    HighSide DriveNo No No
    LowSide DriveYes Yes Yes
    Outputs1 2 2
    LowGate EnableNo No No
    UVLOYes Yes Yes
    Shut downNo Yes
    Internal BootDiodeNot required Not required Not required
    On/Off PinNo
    Input ControlSingle PWM Dual, independent Dual, independent
    Special FeaturesCompound driver, Single supply config Compound driver, negative output capable, one inverted, one non-inverted Compound driver, one inverted, one non-inverted
    AEC Q-100 Automotive Grade1
    RegTypeMOSFET Driver MOSFET Driver MOSFET Driver
    Temperature Min-40 deg C -40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C 125 deg C

    Datasheets
    TitleSizeDateOther
    Language
    LM5112 Tiny 7A MOSFET Gate Driver651
    Kbytes
    7-Apr-06   


    Other Technical Documents
    TitleTypeDate
    An Alternative Approach to Higher-Power Boost ConvertersPower Designer 2009-11-30

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5112MY/NOPB

    LM5112MY

    RoHS Status


    MINI SOIC EXP PAD
    Full production
    Lead Time: 8 weeks

     
    DistributorRegionQty
    ARROWWorldwide1000
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide2139
    FARNELLEurope and Asia2893
    MOUSERWorldwide555
    NEWARKAmericas870
    RS COMPONENTSWorldwide935
    TAYLORAmericas1000
    $0.50 each at 1K+ pcsreel
    of
    1000
    LM5112MYX/NOPB

    LM5112MYX

    RoHS Status


    MINI SOIC EXP PAD
    Full production
    Lead Time: 8 weeks

     
    DistributorRegionQty
    ARROWWorldwide45500
    DIGI-KEYWorldwide0
    TAYLORAmericas45500
    $0.50 each at 1K+ pcsreel
    of
    3500
    LM5112Q1SD/NOPB

    Auto Grade 1
    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide899
    DIGI-KEYWorldwide3311
    MOUSERWorldwide1000
    $0.83 each at 1K+ pcsreel
    of
    1000
    LM5112Q1SDX/NOPB

    Auto Grade 1
    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $0.83 each at 1K+ pcsreel
    of
    4500
    LM5112SD/NOPB

    LM5112SD

    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1000
    AVNET-EMWorldwide10000
    DIGI-KEYWorldwide2751
    FARNELLEurope and Asia8
    MOUSERWorldwide900
    NEWARKAmericas214
    TAYLORAmericas1000
    $0.50 each at 1K+ pcsreel
    of
    1000
    LM5112SDX/NOPB

    LM5112SDX

    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide121400
    DIGI-KEYWorldwide0
    MOUSERWorldwide4500
    TAYLORAmericas121400
    $0.50 each at 1K+ pcsreel
    of
    4500

    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 LM5112.

    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 LM5112 is located at RoHS Status.

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    LM5112MY/NOPB

    LM5112MY
    29.851
    30.002
    MINI SOIC EXP PAD81
    1
    260
    260
    DetailDownloadN/A
    ZXTT
    SJJB
    LM5112MYX/NOPB

    LM5112MYX
    29.851
    30.002
    MINI SOIC EXP PAD81
    1
    260
    260
    DetailDownloadN/A
    ZXTT
    SJJB
    LM5112Q1SD/NOPB

    21.032
    LLP61260DetailDownloadN/A
    ZXYTT
    L250B
    LM5112Q1SDX/NOPB

    21.032
    LLP61260DetailDownloadN/A
    ZXYTT
    L250B
    LM5112SD/NOPB

    LM5112SD
    21.032
    21.102
    LLP61
    1
    260
    260
    DetailDownloadN/A
    ZXYTT
    L132B
    LM5112SDX/NOPB

    LM5112SDX
    21.032
    21.102
    LLP61
    1
    260
    260
    DetailDownloadN/A
    ZXYTT
    L132B

    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 LM5112.

    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 LM5112 is located at RoHS Status.

    CAD Symbols and Models
    Download LM5112 CAD Symbols
     Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM5112MYABCD15004268000639400011814314958
    LM5112MYXABCD15004268000639400011814314958
    LM5112Q1SDABCD15004268000639400011814314958
    LM5112Q1SDXABCD15004268000639400011814314958
    LM5112SDABCD15004268000639400011814314958
    LM5112SDXABCD15004268000639400011814314958

    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 LM5112.

    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 LM5112 is located at RoHS Status.

    LM5045/LM5046 Full-Bridge PWM Controllers with Integrated MOSFET Gate Drivers Overview
    Loading video...


    LM5045/LM5046 Full-Bridge PWM Controllers with Integrated MOSFET Gate Drivers Overview
    Date: 2011-03-23
    Length: 00:05:15
    [Information as of 9-Feb-2012]