National Semiconductor | High-performance Analog

 

 LM5032   
High Voltage Dual Interleaved Current Mode Controller from the PowerWise® Family		 Click link to Download

Features
  • Two independent PWM current mode controllers
  • Integrated high voltage startup regulator
  • Compound 2.5A main output gate drivers
  • Single resistor oscillator setting to 2 MHz
  • Synchronizable oscillator
  • Programmable maximum duty cycle
  • Maximum duty cycle fold-back at high line voltage
  • Adjustable timer for hiccup mode current limiting
  • Integrated slope compensation
  • Adjustable line under-voltage lockout
  • Independently adjustable soft-start (each regulator)
  • Direct interface with opto-coupler transistor
  • Thermal shutdown

    • Description

    The LM5032 dual current mode PWM controller contains all the features needed to control either two independent forward dc/dc converters or a single high current converter comprised of two interleaved power stages. The two controller channels operate 180° out of phase thereby reducing input ripple current. The LM5032 includes a startup regulator that operates over a wide input range up to 100V and compound (bipolar + CMOS) gate drivers that provide a robust 2.5A peak sink current. The adjustable maximum PWM duty cycle reduce stress on the primary side MOSFET switches. Additional features include programmable line under-voltage lockout, cycle-by-cycle current limit, hiccup mode fault operation with adjustable response time, PWM slope compensation, soft-start, and a 2 MHz capable oscillator with synchronization capability.


    Applications

  • Telecommunication Power Converters
  • Industrial Power Converters
  • +42V Automotive Systems

    • Also Recommended
    LM5034▲Provides Outputs To Drive Active Clamp Reset Transistors



    Typical Application
    click for larger image


    		Block Diagram
    *click for larger image



    Typical Performance
    *click for larger image


    Parameters / ValuesLM5032 LM5034
    PWM ModeCurrent Current
    TopologyForward, Flyback Forward Active Clamp
    Input Min Voltage13 Volt 13 Volt
    Input Max Voltage100 Volt 100 Volt
    Frequency Max1000 kHz 1000 kHz
    Efficiency (peak)85 % 94 %
    Adj Switch FrequencyYes Yes
    Frequency Min100 kHz 100 kHz
    Sync PinYes Yes
    Sync TypeUp Up
    UVLOYes Yes
    On/Off PinYes Yes
    PowerGood / Error FlagNo No
    Current Limit Typecycle-cycle, hiccup cycle-cycle, hiccup
    Gate Drive2.5 Amp 2.5 Amp
    Special FeaturesControls dual or single interleaved converter Controls dual or single interleaved converter
    Temperature Min-40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C
    Step-DownYes Yes
    Step-UpYes Yes
    FlybackYes No
    InvertingYes Yes
    RegTypeSwitching Controller Switching Controller
    Adjustable OutputYes Yes
    Output Power600 Watt 600 Watt
    Switching Frequency2000 kHz 2000 kHz
    Multiple Output CapabilityYes Yes
    PowerWiseYes Yes

    Datasheets
    TitleSizeDateOther
    Language
    LM5032 High Voltage Dual Interleaved Current Mode Controller956
    Kbytes    		2-Mar-05   


    Application Notes
    TitleSizeDateOther
    Language
    AN-1962: Application Note 1962 LM5032 Interleaved Boost Evaluation Board2506
    Kbytes    		27-Aug-09 
    AN-1820: Application Note 1820 LM5032 Interleaved Boost Converter1942
    Kbytes    		30-May-08 
    AN-1875: Application Note 1875 LM5073HE Evaluation Board With Active Bridge230
    Kbytes    		2-Jul-08 


    Other Technical Documents
    TitleTypeDate
    Interleaving is Good for Boost Converters, TooExternal Article 2008-05-01
    Inside Current-Mode ControlPower Designer 2007-03-22

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5032MTC/NOPB

    LM5032MTC

    RoHS Status

    TSSOP    		Full production
    Lead Time: 8 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide828
    DIGI-KEYWorldwide390
    MOUSERWorldwide261
    RS COMPONENTSWorldwide42
    TAYLORAmericas828
    		$1.55 each at 1K+ pcsrail
    of
    92
    LM5032MTCX/NOPB

    LM5032MTCX

    RoHS Status

    TSSOP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.55 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 LM5032.

    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 LM5032 is located at RoHS Status.

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5032EVAL/NOPB

    		LM5032 Interleaved Boost Evaluation BoardFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    AVNET-EMWorldwide4
    DIGI-KEYWorldwide0
    MOUSERWorldwide3
    		$129.00 each1

    Description:

    A two phase interleaved boost implementation for increased output power and reduced ripple.

    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
    LM5032MTC/NOPB

    LM5032MTC
    		56.74
    57
    		TSSOP161
    1    		260
    260    		DetailDownloadN/A
    		NSUZXYTT
    LM5032
    MTC
    LM5032MTCX/NOPB

    LM5032MTCX
    		56.74
    57
    		TSSOP161
    1    		260
    260    		DetailDownloadN/A
    		NSUZXYTT
    LM5032
    MTC

    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 LM5032.

    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 LM5032 is located at RoHS Status.

    Design Tools
    TitleSizeDate
    "Article - Interleaving is Good for Boost Converters, Too"  

    CAD Symbols and Models
    Download LM5032 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM5032MTCABCD150XV1038680025950002736338335
    LM5032MTCXABCD150XV1038680025950002736338335

    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 LM5032.

    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 LM5032 is located at RoHS Status.

    [Information as of 8-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation