Datasheet Texas Instruments LM2794 — Datenblatt
| Hersteller | Texas Instruments |
| Serie | LM2794 |
Stromgeregelte LED-Versorgung mit geschaltetem Kondensator mit analoger und PWM-Helligkeitsregelung
Datenblätter
LM2794,LM2795 Current Reg Switched Cap LED Sup w/Analog & PWM Brightness Control datasheet
PDF, 1.1 Mb, Revision: L, Datei veröffentlicht: May 2, 2013
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Preise
Status
| LM2794TL/NOPB | |
|---|---|
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
Verpackung
| 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 | Herunterladen |
Parameter
| 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 |
Öko-Plan
| LM2794TL/NOPB | |
|---|---|
| RoHS | Compliant |
Anwendungshinweise
- Switched Cap Circuits Provide Efficient and Functional White LED Drive (Rev. B)PDF, 86 Kb, Revision: B, Datei veröffentlicht: Apr 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, Datei veröffentlicht: Mar 6, 2003
Modellreihe
Serie: LM2794 (1)
Herstellerklassifikation
- Semiconductors> Power Management> LED Driver> Backlight