Datasheet Texas Instruments LM3478MMX/NOPB — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | LM3478 |
| Numero de parte | LM3478MMX/NOPB |
Controlador de canal N de 40V de ancho bajo y bajo canal para regulador de conmutación 8-VSSOP -40 a 125
Hojas de datos
LM3478 High-Efficiency Low-Side N-Channel Controller for Switching Regulator datasheet
PDF, 1.5 Mb, Revisión: X, Archivo publicado: feb 28, 2017
Extracto del documento
Precios
Estado
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | Sí |
Embalaje
| Pin | 8 |
| Package Type | DGK |
| Industry STD Term | VSSOP |
| JEDEC Code | R-PDSO-G |
| Package QTY | 3500 |
| Carrier | LARGE T&R |
| Device Marking | S14B |
| Width (mm) | 3 |
| Length (mm) | 3 |
| Thickness (mm) | .97 |
| Pitch (mm) | .65 |
| Max Height (mm) | 1.07 |
| Mechanical Data | Descargar |
Paramétricos
| 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 |
Plan ecológico
| RoHS | Obediente |
Kits de diseño y Módulos de evaluación
- Evaluation Modules & Boards: LM3478EVAL
High Efficiency Low-Side N-Channel Controller for Switching Regulator
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)
Notas de aplicación
- Softstart Using Constant Current Constant Voltage ApproachPDF, 337 Kb, Archivo publicado: 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 CoPDF, 782 Kb, Archivo publicado: jul 11, 2014
- AN-1286 Compensation For The LM3478 Boost Controller (Rev. C)PDF, 356 Kb, Revisión: C, Archivo publicado: abr 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, Revisión: E, Archivo publicado: abr 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, Revisión: B, Archivo publicado: abr 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, Revisión: A, Archivo publicado: abr 23, 2013
This application note discusses the use of SEPIC converters in various applications. - LM34xx How to Design Flyback Converter with LM3481 Boost ControllerPDF, 1.7 Mb, Archivo publicado: sept 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
Linea modelo
Serie: LM3478 (5)
- LM3478MA/NOPB LM3478MAX/NOPB LM3478MM LM3478MM/NOPB LM3478MMX/NOPB
Clasificación del fabricante
- Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Up (Boost) > Boost Controller (External Switch)