Datasheet Texas Instruments LM2794 — 数据表
| 制造商 | Texas Instruments |
| 系列 | LM2794 |
具有模拟和PWM亮度控制的电流调节型开关电容器LED电源
数据表
LM2794,LM2795 Current Reg Switched Cap LED Sup w/Analog & PWM Brightness Control datasheet
PDF, 1.1 Mb, 修订版: L, 档案已发布: May 2, 2013
从文件中提取
价格
状态
| LM2794TL/NOPB | |
|---|---|
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
打包
| 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 | 下载 |
参数化
| 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 |
生态计划
| LM2794TL/NOPB | |
|---|---|
| RoHS | Compliant |
应用须知
- Switched Cap Circuits Provide Efficient and Functional White LED Drive (Rev. B)PDF, 86 Kb, 修订版: B, 档案已发布: 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, 档案已发布: Mar 6, 2003
模型线
系列: LM2794 (1)
制造商分类
- Semiconductors> Power Management> LED Driver> Backlight