Datasheet Texas Instruments LM2794 — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | LM2794 |
Suministro de LED de condensador conmutado regulado por corriente con control de brillo analógico y PWM
Hojas de datos
LM2794,LM2795 Current Reg Switched Cap LED Sup w/Analog & PWM Brightness Control datasheet
PDF, 1.1 Mb, Revisión: L, Archivo publicado: mayo 2, 2013
Extracto del documento
Precios
Estado
| LM2794TL/NOPB | |
|---|---|
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | Sí |
Embalaje
| LM2794TL/NOPB | |
|---|---|
| N | 1 |
| Pin | 14 |
| Package Type | YPA |
| Industry STD Term | DSBGA |
| JEDEC Code | R-XBGA-N |
| Package QTY | 250 |
| Carrier | SMALL T&R |
| Device Marking | LOG |
| Thickness (mm) | .36 |
| Pitch (mm) | .5 |
| Max Height (mm) | .675 |
| Mechanical Data | Descargar |
Paramétricos
| Parameters / Models | LM2794TL/NOPB |
|---|---|
| Number of Channels | 4 |
| Duty Cycle(Max), % | 100 |
| LED | 4 |
| LED Current Per Channel, mA | 20 |
| Operating Temperature Range, C | -30 to 85 |
| Package Group | DSBGA |
| Package Size: mm2:W x L, PKG | See datasheet (DSBGA) |
| Peak Efficiency, % | 80 |
| Rating | Catalog |
| Shutdown Current(Typ), uA | 2.3 |
| Special Features | Analog/PWM Mixed Dimming |
| Switching Frequency(Max), kHz | 675 |
| Topology | Boost |
| Type | Capacitive |
| Vin(Max), V | 5.5 |
| Vin(Min), V | 2.7 |
| Vout(Max), V | 5.5 |
| Vout(Min), V | 2.7 |
Plan ecológico
| LM2794TL/NOPB | |
|---|---|
| RoHS | Obediente |
Notas de aplicación
- Switched Cap Circuits Provide Efficient and Functional White LED Drive (Rev. B)PDF, 86 Kb, Revisión: B, Archivo publicado: abr 30, 2013
Texas Instruments has many solutions for driving LEDs including switched capacitor converters and inductive based switching regulators. This application report describes some different switched capacitor methods of driving white LEDs and the benefits of each. The main areas of concern for most designers of portable equipment are efficiency, size, cost, functionality, and LED current matching. - Switched Capacitor Circuits Provide Efficient and Functional White-LED DrivePDF, 75 Kb, Archivo publicado: marzo 6, 2003
Linea modelo
Serie: LM2794 (1)
Clasificación del fabricante
- Semiconductors> Power Management> LED Driver> Backlight