Datasheet Texas Instruments LM3478MMX/NOPB — Datenblatt

HerstellerTexas Instruments
SerieLM3478
ArtikelnummerLM3478MMX/NOPB
Datasheet Texas Instruments LM3478MMX/NOPB

40 V Wide Vin Low-Side-N-Kanal-Controller zum Schalten des Reglers 8-VSSOP -40 bis 125

Datenblätter

LM3478 High-Efficiency Low-Side N-Channel Controller for Switching Regulator datasheet
PDF, 1.5 Mb, Revision: X, Datei veröffentlicht: Feb 28, 2017
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Preise

Status

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes

Verpackung

Pin8
Package TypeDGK
Industry STD TermVSSOP
JEDEC CodeR-PDSO-G
Package QTY3500
CarrierLARGE T&R
Device MarkingS14B
Width (mm)3
Length (mm)3
Thickness (mm).97
Pitch (mm).65
Max Height (mm)1.07
Mechanical DataHerunterladen

Parameter

Duty Cycle(Max)100 %
Iout(Max)10 A
Iq(Typ)2.7 mA
Operating Temperature Range-40 to 125 C
Package GroupVSSOP
RatingCatalog
Regulated Outputs1
Special FeaturesAdjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up
Switch Current Limit(Typ)10 A
Switching Frequency(Max)1000 kHz
Switching Frequency(Min)100 kHz
TypeController
Vin(Max)40 V
Vin(Min)2.97 V
Vout(Max)500 V
Vout(Min)1.26 V

Öko-Plan

RoHSCompliant

Design Kits und Evaluierungsmodule

  • Evaluation Modules & Boards: LM3478EVAL
    High Efficiency Low-Side N-Channel Controller for Switching Regulator
    Lifecycle Status: Active (Recommended for new designs)

Anwendungshinweise

  • Softstart Using Constant Current Constant Voltage Approach
    PDF, 337 Kb, Datei veröffentlicht: Jul 24, 2015
    In many systems backup power is provided either by batteries or simply by a large value capacitor. Inthese applications the capacitor would only provide the current when the primary power source fails.Further, these applications are usually for light load currents. During normal operation the backupcapacitors are kept charged up by a DC/DC converter. The challenge involved in an application
  • Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co
    PDF, 782 Kb, Datei veröffentlicht: Jul 11, 2014
  • AN-1286 Compensation For The LM3478 Boost Controller (Rev. C)
    PDF, 356 Kb, Revision: C, Datei veröffentlicht: Apr 23, 2013
    The LM3478 is a low side N-Channel controller for switching regulators. Like many switching controllers,the added flexibility in component selection can cause problems for users when determining thecompensation scheme. It is the goal of this application report to present a decent groundwork to allow thereader to select with confidence the correct compensation components. To achieve this we l
  • AN-1484 Designing A SEPIC Converter (Rev. E)
    PDF, 220 Kb, Revision: E, Datei veröffentlicht: Apr 23, 2013
    In a single ended primary inductance converter (SEPIC) design, the output voltage can be higher or lowerthan the input voltage. The SEPIC converter shown in Figure 1 uses two inductors: L1 and L2. The twoinductors can be wound on the same core since the same voltages are applied to them throughout theswitching cycle.
  • Modeling & Design of Current Mode Control Boost Converters (Rev. B)
    PDF, 316 Kb, Revision: B, Datei veröffentlicht: Apr 23, 2013
    This application note presents a detail modeling and design of current mode control boost convertersoperating in the continuous conduction mode (CCM). Based on the derived small signal models, thedesign of a lag compensator for current mode control boost converters will be detailed. The LM3478 boostcontroller will be used in the example. Simulation and hardware measurement of frequency respo
  • AN-1990 Compensation for Current Mode Control SEPIC Converters (Rev. A)
    PDF, 247 Kb, Revision: A, Datei veröffentlicht: Apr 23, 2013
    This application note discusses the use of SEPIC converters in various applications.
  • LM34xx How to Design Flyback Converter with LM3481 Boost Controller
    PDF, 1.7 Mb, Datei veröffentlicht: Sep 21, 2016
    The TexasInstrumentsLM3481boostcontrolleris a versatilelow-sideN-FEThigh-performancecontrollerfor switchingregulators.Thedevicehaswiderangeof applicationssuchas automotivestart-stopapplication,one-cellor two-cellLi-ionbattery-poweredportableBluetoothaudiosystem,industrialsystemisolatedsupplies,and so forth,and supportstopologi

Modellreihe

Herstellerklassifikation

  • Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Up (Boost) > Boost Controller (External Switch)