Datasheet Texas Instruments LM3478MM/NOPB — 数据表

制造商	Texas Instruments
系列	LM3478
零件号	LM3478MM/NOPB

用于开关稳压器8-VSSOP的40V宽Vin低端N通道控制器-40至125

数据表

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PDF, 1.5 Mb, 修订版: X, 档案已发布: Feb 28, 2017

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价格

状态

Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

打包

Pin	8
Package Type	DGK
Industry STD Term	VSSOP
JEDEC Code	R-PDSO-G
Package QTY	1000
Carrier	SMALL T&R
Device Marking	S14B
Width (mm)	3
Length (mm)	3
Thickness (mm)	.97
Pitch (mm)	.65
Max Height (mm)	1.07
Mechanical Data	下载

参数化

Duty Cycle(Max)	100 %
Iout(Max)	10 A
Iq(Typ)	2.7 mA
Operating Temperature Range	-40 to 125 C
Package Group	VSSOP
Rating	Catalog
Regulated Outputs	1
Special Features	Adjustable 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
Type	Controller
Vin(Max)	40 V
Vin(Min)	2.97 V
Vout(Max)	500 V
Vout(Min)	1.26 V

生态计划

RoHS

Compliant

设计套件和评估模块

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

应用须知

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Softstart Using Constant Current Constant Voltage Approach
PDF, 337 Kb, 档案已发布: 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
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Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co
PDF, 782 Kb, 档案已发布: Jul 11, 2014
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AN-1286 Compensation For The LM3478 Boost Controller (Rev. C)
PDF, 356 Kb, 修订版: C, 档案已发布: 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
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AN-1484 Designing A SEPIC Converter (Rev. E)
PDF, 220 Kb, 修订版: E, 档案已发布: 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.
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Modeling & Design of Current Mode Control Boost Converters (Rev. B)
PDF, 316 Kb, 修订版: B, 档案已发布: 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
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AN-1990 Compensation for Current Mode Control SEPIC Converters (Rev. A)
PDF, 247 Kb, 修订版: A, 档案已发布: Apr 23, 2013
This application note discusses the use of SEPIC converters in various applications.
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LM34xx How to Design Flyback Converter with LM3481 Boost Controller
PDF, 1.7 Mb, 档案已发布: 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

模型线

系列: LM3478 (5)

LM3478MA/NOPB LM3478MAX/NOPB LM3478MM LM3478MM/NOPB LM3478MMX/NOPB

制造商分类

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