Datasheet Texas Instruments LM3478MM — Datenblatt
| Hersteller | Texas Instruments |
| Serie | LM3478 |
| Artikelnummer | LM3478MM |
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 Status | NRND (Not recommended for new designs) |
| Manufacture's Sample Availability | No |
Verpackung
| 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 | Herunterladen |
Ersatz
| Replacement | LM3478MM/NOPB |
| Replacement Code | S |
Parameter
| 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 |
Öko-Plan
| RoHS | See ti.com |
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
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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
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The TexasInstrumentsLM3481boostcontrolleris a versatilelow-sideN-FEThigh-performancecontrollerfor switchingregulators.Thedevicehaswiderangeof applicationssuchas automotivestart-stopapplication,one-cellor two-cellLi-ionbattery-poweredportableBluetoothaudiosystem,industrialsystemisolatedsupplies,and so forth,and supportstopologi - Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC CoPDF, 782 Kb, Datei veröffentlicht: Jul 11, 2014
- Softstart Using Constant Current Constant Voltage ApproachPDF, 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
Modellreihe
Serie: LM3478 (5)
Herstellerklassifikation
- Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Up (Boost) > Boost Controller (External Switch)