Datasheet Texas Instruments LM3402MRX/NOPB — Ficha de datos

FabricanteTexas Instruments
SerieLM3402
Numero de parteLM3402MRX/NOPB
Datasheet Texas Instruments LM3402MRX/NOPB

Regulador Buck de corriente constante 0.5A para controladores LED de alta potencia 8-SO PowerPAD

Hojas de datos

LM3402/HV 0.5-A Constant Current Buck Regulator for Driving High Power LEDs datasheet
PDF, 1.5 Mb, Revisión: F, Archivo publicado: oct 29, 2015
Extracto del documento

Precios

Estado

Estado del ciclo de vidaActivo (Recomendado para nuevos diseños)
Disponibilidad de muestra del fabricanteNo

Embalaje

Pin88
Package TypeDDADDA
Industry STD TermHSOICHSOIC
JEDEC CodeR-PDSO-GR-PDSO-G
Package QTY25002500
CarrierLARGE T&RLARGE T&R
Device MarkingL3402MR
Width (mm)3.93.9
Length (mm)4.894.89
Thickness (mm)1.481.48
Pitch (mm)1.271.27
Max Height (mm)1.71.7
Mechanical DataDescargarDescargar

Paramétricos

Dimming MethodPWM
Input VoltageDC/DC Type
Iout(Max)0.5 A
Iq(Typ)0.6 mA
Operating Temperature Range-40 to 125 C
Package GroupSO PowerPAD
Package Size: mm2:W x L8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD) PKG
Power Factor CorrectionN/A Min
RatingCatalog
Regulated Outputs1
Special FeaturesAdjustable Switch Frequency,Enable/Shutdown,Integrated Switch,Thermal Shutdown
Switching Frequency(Max)1000 kHz
Switching Frequency(Min)20 kHz
TopologyBuck
TypeInductive
Vin(Max)42 V
Vin(Min)6 V
Vout(Max)40 V
Vout(Min)0.2 V
Vref0.2 V

Plan ecológico

RoHSObediente

Kits de diseño y Módulos de evaluación

  • Evaluation Modules & Boards: LM3402EVAL
    LM3402MA (Mini SOIC) - 0.5A Constant Current Buck Regulator for HB LEDs (LM3402EVAL Board)
    Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)
  • Evaluation Modules & Boards: LM3404MREVAL
    LM3402 LM3404 High Power PSOP-8 Evaluation board
    Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)
  • Evaluation Modules & Boards: LM3404FSTDIMEV
    LM3404FSTDIMEV - Fast Dimming and True Constant LED Current Evaluation Board
    Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)

Notas de aplicación

  • Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 Packages (Rev. A)
    PDF, 146 Kb, Revisión: A, Archivo publicado: mayo 1, 2013
    The LM3404/04HV is a buck-regulator designed for driving high powered LEDs at forward currents of upto 1.0A. LED drivers often experience thermal conditions that are extreme even by the standards ofswitching converters. For example, LED drivers are often placed on the same metal-core PCB (MCPCB)as the LEDs themselves. At 1.0A, a single-die white LED can dissipate more than 3W. The temperatur
  • AN-1853 COT Drivers Control LED Ripple Current (Rev. A)
    PDF, 76 Kb, Revisión: A, Archivo publicado: mayo 1, 2013
    The constant on-time (COT) control method used by the LM3402 and LM3404 constant-current buckregulators provides a balance between control over switching frequency and fast transient response.Normally this "quasi-hysteretic" control senses the input voltage and adjusts the on-time tON of the powerMOSFET as needed to keep fSW constant. Investigating a little more deeply reveals that tON is in
  • AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A)
    PDF, 60 Kb, Revisión: A, Archivo publicado: abr 23, 2013
    The world seems to be poised to make the leap to LED lighting. Incandescent has been deemed tooinefficient, which it is, and fluorescent lighting often does not achieve the lifetime it claims. Fluorescentalso has another set of baggage, dangerous chemicals. So the logical choice that most people believe cantake the crown is high brightness (HB) LEDs. HBLEDs are becoming more attractive as th
  • Driving LEDs: To Cap or Not to Cap
    PDF, 542 Kb, Archivo publicado: marzo 21, 2007
  • AN-1656 Design Challenges of Switching LED Drivers (Rev. A)
    PDF, 171 Kb, Revisión: A, Archivo publicado: mayo 3, 2013
    Using a switching regulator as an LED driver requires the designer to convert a voltage regulator into acurrent regulator. Beyond the challenge of changing the feedback system to control current, the LEDsthemselves present a load characteristic that is much different than the digital devices and other loads thatrequire constant voltage. The LED WEBENCHВ® online design environment predicts and

Linea modelo

Clasificación del fabricante

  • Semiconductors > Power Management > LED Driver > Illumination & General Lighting LED Driver