National Semiconductor | High-performance Analog

 

 LM5035A   

PWM Controller with Integrated Half-Bridge and SyncFET Drivers from the PowerWise® Family
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Features

  • 105V / 2A Half-Bridge Gate Drivers
  • Synchronous Rectifier Control Outputs with Programmable Delays
  • High Voltage (105V) Start-up Regulator
  • Voltage mode Control with Line Feed-Forward and Volt • Second Limiting
  • Resistor Programmed, 2MHz Capable Oscillator
  • Patent Pending Oscillator Synchronization
  • Programmable Line Under-Voltage Lockout
  • Line Over-Voltage Protection
  • Internal Thermal Shutdown Protection
  • Adjustable Soft-Start
  • Versatile Dual Mode Over-Current Protection with Hiccup Delay Timer
  • Cycle-by-Cycle Over-Current Protection
  • Direct Opto-coupler Interface
  • 5V Reference Output
  • Description

    The LM5035A Half-Bridge Controller/Gate Driver contains all of the features necessary to implement half-bridge topology power converters using voltage mode control with line voltage feed-forward. The LM5035A is a functional variant of the LM5035 half-bridge PWM controller. The VCC current limit threshold has been increased to 35 mA. The soft start and soft start currents have been increased from 50 µA to 100 µA. The BST UV threshold has been lowered to less than the VCC UV threshold. The ratio of the T1 and T2 delays on the SR1 and SR2 outputs has been increased from 2:1 to 3:1. The floating high-side gate driver is capable of operating with supply voltages up to 105V. Both the high-side and low-side gate drivers are capable of 2A peak. An internal high voltage startup regulator is included, along with programmable line undervoltage lockout (UVLO) and overvoltage protection (OVP). The oscillator is programmed with a single resistor to frequencies up to 2MHz. The oscillator can also be synchronized to an external clock. A current sense input and a programmable timer provide cycle-by-cycle current limit and adjustable hiccup mode overload protection. The differences between LM5035, LM5035A, LM5035B, and LM5035C are summarized in .

    Also Recommended
    LM5030100V Push-Pull Current Mode PWM Controller
    LM5033100V Push-Pull Voltage Mode PWM Controller
    LM5035BStartup Reg 40mA; SR State In Error Condition Low; Better On Time; No Soft Start After UVLO On SR1/2
    LM5035CStartup Reg 40mA; SR State In Error Condition Low; Better On Time; No Soft Start After UVLO; 5V Ref
    LM5100A3.0A High Voltage High Side And Low Side Driver



    Typical Application
    *click for larger image


    Block Diagram
    click for larger image


    Parameters / ValuesLM5035A LM5030 LM5033 LM5035B LM5035C
    PWM ModeVoltage Current Voltage Voltage-Mode Voltage-Mode
    TopologyHalf-Bridge Push-Pull, Full-bridge, Half-bridge Push-Pull, Half-bridge, Full-bridge, IBC Half-Bridge, Push-Pull and Full-Bridge Half-Bridge, Push-Pull and Full-Bridge
    Input Min Voltage8 Volt 14 Volt 15 Volt 8 Volt 8 Volt
    Input Max Voltage105 Volt 90 Volt 90 Volt 105 Volt 105 Volt
    Frequency Max1000 kHz 1000 kHz 1000 kHz 1000 kHz 1000 kHz
    Efficiency (peak)92 % 95 % 95.5 % 92 % 92 %
    Adj Switch FrequencyYes Yes Yes Yes Yes
    Frequency Min50 kHz 50 kHz 50 kHz 50 kHz 50 kHz
    Sync PinYes Yes Yes Yes Yes
    Sync TypeUp Up Up Up Up
    UVLOYes No No Yes Yes
    On/Off PinNo Yes Yes No No
    PowerGood / Error FlagNo No No No No
    Current Limit Typecycle-cycle, hiccup cycle-cycle, hiccup Hiccup Cycle-by-cyle & Hiccup Cycle-by-cycle and Hiccup Mode
    Gate Drive2 Amp 1.5 Amp 1.5 Amp 2 Amp 2 Amp
    Special FeaturesSyncFET driver, high bandwidth opto interface, thermal sensor/OVP comparator Slope compensation, direct opto-coupler interface Intermediate bus converter controller Compatible with digital isolator, high bandwidth opto intergace, SR control signals SR control signals, Feed-Forward, Direct Opto Interface, thermal sensor/OVP comparator
    Temperature Min-40 deg C -40 deg C -40 deg C -40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C 125 deg C 125 deg C 125 deg C
    Step-DownYes Yes Yes Yes Yes
    Step-UpYes Yes Yes Yes Yes
    FlybackYes No No No Yes
    InvertingYes Yes Yes Yes Yes
    RegTypeSwitching Controller Switching Controller Switching Controller Switching Controller Switching Controller
    Adjustable OutputYes Yes Yes Yes Yes
    Output Power100 Watt 500 Watt 500 Watt 500 Watt
    Switching Frequency1000 kHz 1000 kHz 1000 kHz 1000 kHz 400 kHz
    Multiple Output CapabilityYes Yes Yes Yes Yes
    PowerWiseYes Yes Yes Yes Yes

    Datasheets
    TitleSizeDateOther
    Language
    LM5035A PWM Controller with Integrated Half-Bridge and SyncFET Drivers585
    Kbytes
    30-Jul-10   

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5035AMH/NOPB


    RoHS Status


    TSSOP EXP PAD
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1157
    DIGI-KEYWorldwide128
    TAYLORAmericas1157
    $1.90 each at 1K+ pcsrail
    of
    73
    LM5035AMH-1/NOPB


    RoHS Status


    TSSOP EXP PAD
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide192
    DIGI-KEYWorldwide192
    $1.90 each at 1K+ pcsrail
    of
    48
    LM5035AMHX/NOPB


    RoHS Status


    TSSOP EXP PAD
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.90 each at 1K+ pcsreel
    of
    2500
    LM5035AMHX-1/NOPB


    RoHS Status


    TSSOP EXP PAD
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.90 each at 1K+ pcsreel
    of
    2500
    LM5035ASQ/NOPB


    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide994
    MOUSERWorldwide1000
    $1.90 each at 1K+ pcsreel
    of
    1000
    LM5035ASQX/NOPB


    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.90 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 LM5035A.

    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 LM5035A is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5035AEVAL
    Evaluation Board for the PWM Controller with Integrated Half-Bridge and SyncFET DriversFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    $160.00 each1

    Description:

    The LM5035A evaluation board is designed to provide the design engineer with a fully functional power converter based on the Half Bridge topology to evaluate the LM5035A controller.

    Contents:




    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
    LM5035AMH/NOPB

    73.061
    TSSOP EXP PAD201260DetailDownloadspice file
    NSUZXYTT
    LM5035
    AMH
    LM5035AMH-1/NOPB

    117.59
    TSSOP EXP PAD281260DetailDownloadspice file
    NSUZXYTT
    LM5035
    AMH-1
    LM5035AMHX/NOPB

    73.061
    TSSOP EXP PAD201260DetailDownloadspice file
    NSUZXYTT
    LM5035
    AMH
    LM5035AMHX-1/NOPB

    117.59
    TSSOP EXP PAD281260DetailDownloadspice file
    NSUZXYTT
    LM5035
    AMH-1
    LM5035ASQ/NOPB

    52.754
    LLP241260DetailDownloadspice file
    NS
    UZXYTT
    5035ASQ
    LM5035ASQX/NOPB

    52.754
    LLP241260DetailDownloadspice file
    NS
    UZXYTT
    5035ASQ

    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 LM5035A.

    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 LM5035A is located at RoHS Status.

    CAD Symbols and Models
    Download LM5035A CAD Symbols
     Models
    spice file


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM5035AMHABCD150XV2036010011554964327875145
    LM5035AMH-1ABCD150XV2036010011554964327875145
    LM5035AMHXABCD150XV2036010011554964327875145
    LM5035AMHX-1ABCD150XV2036010011554964327875145
    LM5035ASQABCD150XV2036010011554964327875145
    LM5035ASQXABCD150XV2036010011554964327875145

    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 LM5035A.

    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 LM5035A is located at RoHS Status.

    [Information as of 9-Feb-2012]