Datasheet Texas Instruments LM3421MHX/NOPB — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | LM3421 |
| Numero de parte | LM3421MHX/NOPB |
Controladores de canal N para controladores LED de corriente constante 16-HTSSOP -40 a 125
Hojas de datos
LM342x/-Q1 N-Channel Controllers for Constant-Current LED Drivers datasheet
PDF, 2.5 Mb, Revisión: F, Archivo publicado: nov 4, 2014
Extracto del documento
Precios
Estado
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | No |
Embalaje
| Pin | 16 | 16 |
| Package Type | PWP | PWP |
| Industry STD Term | HTSSOP | HTSSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G |
| Package QTY | 2500 | 2500 |
| Carrier | LARGE T&R | LARGE T&R |
| Device Marking | LM3421 | MH |
| Width (mm) | 4.4 | 4.4 |
| Length (mm) | 5 | 5 |
| Thickness (mm) | 1 | 1 |
| Pitch (mm) | .65 | .65 |
| Max Height (mm) | 1.2 | 1.2 |
| Mechanical Data | Descargar | Descargar |
Paramétricos
| Dimming Method | Analog,PWM |
| Input Voltage | DC/DC Type |
| Iout(Max) | 5 A |
| Iq(Typ) | 2 mA |
| Operating Temperature Range | -40 to 125 C |
| Package Group | HTSSOP |
| Package Size: mm2:W x L | 16HTSSOP: 22 mm2: 4.4 x 5(HTSSOP) PKG |
| Power Factor Correction | N/A Min |
| Rating | Catalog |
| Regulated Outputs | 1 |
| Special Features | Adjustable Switch Frequency,Enable/Shutdown,Thermal Shutdown |
| Switching Frequency(Max) | 2000 kHz |
| Switching Frequency(Min) | 100 kHz |
| Topology | Boost,Boost Controller,Buck-Boost,Sepic |
| Type | Controller,Inductive |
| Vin(Max) | 75 V |
| Vin(Min) | 4.5 V |
| Vout(Max) | 72 V |
| Vout(Min) | 3 V |
| Vref | 1.24 V |
Plan ecológico
| RoHS | Obediente |
Kits de diseño y Módulos de evaluación
- Evaluation Modules & Boards: LM3421-SEPICEV
SEPIC LED Driver Evaluation Board for Automotive Applications
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños) - Evaluation Modules & Boards: LM3423BS2LYEV
Boost 2 Layer LED Driver Evaluation Board
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños) - Evaluation Modules & Boards: LM3423BBLSCSEV
LM3423 Buck-Boost 2-Layer Low Side Current Sense Evaluation Board
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)
Notas de aplicación
- 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 - 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: LM3421 (2)
- LM3421MH/NOPB LM3421MHX/NOPB
Clasificación del fabricante
- Semiconductors > Power Management > LED Driver > Illumination & General Lighting LED Driver