Datasheet Texas Instruments LM3478 — Ficha de datos

Fabricante	Texas Instruments
Serie	LM3478

Hojas de datos

Precios

Estado

Embalaje

Paramétricos

Parameters / Models	LM3478MA/NOPB	LM3478MAX/NOPB	LM3478MM	LM3478MM/NOPB	LM3478MMX/NOPB
Duty Cycle(Max), %	100	100	100	100	100
Iout(Max), A	10	10	10	10	10
Iq(Typ), mA	2.7	2.7	2.7	2.7	2.7
Operating Temperature Range, C	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Package Group	SOIC	SOIC	VSSOP	VSSOP	VSSOP
Rating	Catalog	Catalog	Catalog	Catalog	Catalog
Regulated Outputs	1	1	1	1	1
Special Features	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up
Switch Current Limit(Typ), A	10	10	10	10	10
Switching Frequency(Max), kHz	1000	1000	1000	1000	1000
Switching Frequency(Min), kHz	100	100	100	100	100
Type	Controller	Controller	Controller	Controller	Controller
Vin(Max), V	40	40	40	40	40
Vin(Min), V	2.97	2.97	2.97	2.97	2.97
Vout(Max), V	500	500	500	500	500
Vout(Min), V	1.26	1.26	1.26	1.26	1.26

Plan ecológico

Notas de aplicación

• Descargar
  Softstart Using Constant Current Constant Voltage Approach
  PDF, 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
• Descargar
  Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co
  PDF, 782 Kb, Archivo publicado: jul 11, 2014
• Descargar
  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
• Descargar
  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.
• Descargar
  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
• Descargar
  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.
• Descargar
  LM34xx How to Design Flyback Converter with LM3481 Boost Controller
  PDF, 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

Clasificación del fabricante

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