Datasheet Texas Instruments LP8550 — 数据表
| 制造商 | Texas Instruments |
| 系列 | LP8550 |
笔记本电脑高效LED背光驱动器
数据表
LP8550 High-Efficiency LED Backlight Driver for Notebooks datasheet
PDF, 1.5 Mb, 修订版: E, 档案已发布: Sep 9, 2014
从文件中提取
价格
状态
| LP8550TLE/NOPB | LP8550TLX-A/NOPB | LP8550TLX/NOPB | |
|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | No |
打包
| LP8550TLE/NOPB | LP8550TLX-A/NOPB | LP8550TLX/NOPB | |
|---|---|---|---|
| N | 1 | 2 | 3 |
| Pin | 25 | 25 | 25 |
| Package Type | YZR | YZR | YZR |
| Industry STD Term | DSBGA | DSBGA | DSBGA |
| JEDEC Code | S-XBGA-N | S-XBGA-N | S-XBGA-N |
| Package QTY | 250 | 3000 | 3000 |
| Carrier | SMALL T&R | LARGE T&R | LARGE T&R |
| Device Marking | 8550 | D71B | 8550 |
| Width (mm) | 2.8 | 2.8 | 2.8 |
| Length (mm) | 3 | 3 | 3 |
| Thickness (mm) | .675 | .675 | .675 |
| Pitch (mm) | .5 | .5 | .5 |
| Max Height (mm) | .675 | .675 | .675 |
| Mechanical Data | 下载 | 下载 | 下载 |
参数化
| Parameters / Models | LP8550TLE/NOPB | LP8550TLX-A/NOPB | LP8550TLX/NOPB |
|---|---|---|---|
| Number of Channels | 6 | 6 | 6 |
| Duty Cycle(Max), % | 100 | 100 | 100 |
| LED | 60 | 60 | 60 |
| LED Current Per Channel, mA | 50 | 50 | 50 |
| Operating Temperature Range, C | -30 to 85 | -30 to 85 | -30 to 85 |
| Package Group | DSBGA | DSBGA | DSBGA |
| Package Size: mm2:W x L, PKG | See datasheet (DSBGA) | See datasheet (DSBGA) | See datasheet (DSBGA) |
| Peak Efficiency, % | 91 | 91 | 91 |
| Rating | Catalog | Catalog | Catalog |
| Shutdown Current(Typ), uA | 1 | 1 | 1 |
| Special Features | Adjustable Switch Frequency,Enable/Shutdown,I2C Control,PWM Control | Adjustable Switch Frequency,Enable/Shutdown,I2C Control,PWM Control | Adjustable Switch Frequency,Enable/Shutdown,I2C Control,PWM Control |
| Switching Frequency(Max), kHz | 1250 | 1250 | 1250 |
| Topology | Boost | Boost | Boost |
| Type | Inductive | Inductive | Inductive |
| Vin(Max), V | 22 | 22 | 22 |
| Vin(Min), V | 5.5 | 5.5 | 5.5 |
| Vout(Max), V | 40 | 40 | 40 |
| Vout(Min), V | 10 | 10 | 10 |
生态计划
| LP8550TLE/NOPB | LP8550TLX-A/NOPB | LP8550TLX/NOPB | |
|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant |
应用须知
- Increasing Full-Load Efficiency of a Backlight DriverPDF, 1.2 Mb, 档案已发布: Jun 5, 2013
This application report discusses a way to increase the efficiency of the boost converter in a backlightdriver by reducing conduction and AC losses in the inductor, thereby increasing the overall efficiency ofthe backlight driver at higher loads. - Power Budget for Backlight DriversPDF, 592 Kb, 档案已发布: Jun 27, 2013
This application report discusses the Power Budget of an LED backlight driver. It provides experimental and theoretical methods of calculating different losses associated with LED backlight drivers. It also provides an analytical discussion on behavior of different losses vs brightness levels.
模型线
系列: LP8550 (3)
制造商分类
- Semiconductors> Power Management> LED Driver> Backlight