Datasheet Texas Instruments LM3402MR/NOPB — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | LM3402 |
| Numero de parte | LM3402MR/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 vida | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | Sí |
Embalaje
| Pin | 8 | 8 |
| Package Type | DDA | DDA |
| Industry STD Term | HSOIC | HSOIC |
| JEDEC Code | R-PDSO-G | R-PDSO-G |
| Package QTY | 95 | 95 |
| Carrier | TUBE | TUBE |
| Device Marking | MR | L3402 |
| Width (mm) | 3.9 | 3.9 |
| Length (mm) | 4.89 | 4.89 |
| Thickness (mm) | 1.48 | 1.48 |
| Pitch (mm) | 1.27 | 1.27 |
| Max Height (mm) | 1.7 | 1.7 |
| Mechanical Data | Descargar | Descargar |
Paramétricos
| Dimming Method | PWM |
| Input Voltage | DC/DC Type |
| Iout(Max) | 0.5 A |
| Iq(Typ) | 0.6 mA |
| Operating Temperature Range | -40 to 125 C |
| Package Group | SO PowerPAD |
| Package Size: mm2:W x L | 8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD) PKG |
| Power Factor Correction | N/A Min |
| Rating | Catalog |
| Regulated Outputs | 1 |
| Special Features | Adjustable Switch Frequency,Enable/Shutdown,Integrated Switch,Thermal Shutdown |
| Switching Frequency(Max) | 1000 kHz |
| Switching Frequency(Min) | 20 kHz |
| Topology | Buck |
| Type | Inductive |
| Vin(Max) | 42 V |
| Vin(Min) | 6 V |
| Vout(Max) | 40 V |
| Vout(Min) | 0.2 V |
| Vref | 0.2 V |
Plan ecológico
| RoHS | Obediente |
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 CapPDF, 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
Serie: LM3402 (6)
- LM3402MM LM3402MM/NOPB LM3402MMX LM3402MMX/NOPB LM3402MR/NOPB LM3402MRX/NOPB
Clasificación del fabricante
- Semiconductors > Power Management > LED Driver > Illumination & General Lighting LED Driver