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Datasheet Texas Instruments LM3478 — Даташит

ПроизводительTexas Instruments
СерияLM3478
Datasheet Texas Instruments LM3478

40V Wide Vin Low-Side N-Channel Controller for Switching Regulator

Datasheets

LM3478 High-Efficiency Low-Side N-Channel Controller for Switching Regulator datasheet
PDF, 1.5 Мб, Версия: X, Файл опубликован: 28 фев 2017
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высокоэффективный контроллер для импульсного регулятора, мар-ка S14B
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LM3478MMX/NOPB
Texas Instruments
9.07 ₽
LM3478MM/NOPB
Texas Instruments
39 ₽
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LM3478MM
Texas Instruments
106 ₽
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LM3478MMMSOP8
Texas Instruments
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Статус

LM3478MA/NOPBLM3478MAX/NOPBLM3478MMLM3478MM/NOPBLM3478MMX/NOPB
Статус продуктаВ производствеВ производствеНе рекомендуется для новых разработокВ производствеВ производстве
Доступность образцов у производителяДаНетНетДаДа

Корпус / Упаковка / Маркировка

LM3478MA/NOPBLM3478MAX/NOPBLM3478MMLM3478MM/NOPBLM3478MMX/NOPB
N12345
Pin88888
Package TypeDDDGKDGKDGK
Industry STD TermSOICSOICVSSOPVSSOPVSSOP
JEDEC CodeR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-G
Package QTY952500100010003500
CarrierTUBELARGE T&RSMALL T&RSMALL T&RLARGE T&R
МаркировкаL3478MAS14BS14BS14B
Width (мм)3.913.91333
Length (мм)4.94.9333
Thickness (мм)1.581.58.97.97.97
Pitch (мм)1.271.27.65.65.65
Max Height (мм)1.751.751.071.071.07
Mechanical DataСкачатьСкачатьСкачатьСкачатьСкачать

Параметры

Parameters / ModelsLM3478MA/NOPB
LM3478MA/NOPB
LM3478MAX/NOPB
LM3478MAX/NOPB
LM3478MM
LM3478MM
LM3478MM/NOPB
LM3478MM/NOPB
LM3478MMX/NOPB
LM3478MMX/NOPB
Duty Cycle(Max), %100100100100100
Iout(Max), A1010101010
Iq(Typ), мА2.72.72.72.72.7
Рабочий диапазон температур, Cот -40 до 125от -40 до 125от -40 до 125от -40 до 125от -40 до 125
Package GroupSOICSOICVSSOPVSSOPVSSOP
RatingCatalogCatalogCatalogCatalogCatalog
Regulated Outputs11111
Special FeaturesAdjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-UpAdjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-UpAdjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-UpAdjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-UpAdjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up
Switch Current Limit(Typ), A1010101010
Switching Frequency(Max), kHz10001000100010001000
Switching Frequency(Min), kHz100100100100100
ТипControllerControllerControllerControllerController
Vin(Max), В4040404040
Vin(Min), В2.972.972.972.972.97
Vout(Max), В500500500500500
Vout(Min), В1.261.261.261.261.26

Экологический статус

LM3478MA/NOPBLM3478MAX/NOPBLM3478MMLM3478MM/NOPBLM3478MMX/NOPB
RoHSСовместимСовместимSee ti.comСовместимСовместим

Application Notes

  • Softstart Using Constant Current Constant Voltage Approach
    PDF, 337 Кб, Файл опубликован: 24 июл 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 Кб, Файл опубликован: 11 июл 2014
  • AN-1286 Compensation For The LM3478 Boost Controller (Rev. C)
    PDF, 356 Кб, Версия: C, Файл опубликован: 23 апр 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 Кб, Версия: E, Файл опубликован: 23 апр 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 Кб, Версия: B, Файл опубликован: 23 апр 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 Кб, Версия: A, Файл опубликован: 23 апр 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 Мб, Файл опубликован: 21 сен 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

Модельный ряд

Классификация производителя

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

На английском языке: Datasheet Texas Instruments LM3478

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