Datasheet Texas Instruments LM3509SDE/NOPB — 数据表
| 制造商 | Texas Instruments |
| 系列 | LM3509 |
| 零件号 | LM3509SDE/NOPB |
具有双电流吸收器的10-WSON -40至85的白光LED和/或OLED显示器的高效率提升
数据表
HE Boost for White LED's / OLED Displays w/ Dual Sinks & I2C Brightness Control datasheet
PDF, 2.7 Mb, 修订版: D, 档案已发布: May 3, 2013
从文件中提取
价格
状态
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
打包
| Pin | 10 |
| Package Type | DSC |
| Industry STD Term | WSON |
| JEDEC Code | S-PDSO-N |
| Package QTY | 250 |
| Carrier | SMALL T&R |
| Device Marking | L3509 |
| Width (mm) | 3 |
| Length (mm) | 3 |
| Thickness (mm) | .75 |
| Pitch (mm) | .5 |
| Max Height (mm) | .8 |
| Mechanical Data | 下载 |
参数化
| Number of Channels | 2 |
| Duty Cycle(Max) | 90 % |
| LED | 10 |
| LED Current Per Channel | 30 mA |
| Operating Temperature Range | -40 to 85 C |
| Package Group | WSON |
| Package Size: mm2:W x L | See datasheet (WSON) PKG |
| Peak Efficiency | 88 % |
| Rating | Catalog |
| Shutdown Current(Typ) | 3.6 uA |
| Special Features | I2C Control |
| Switching Frequency(Max) | 1250 kHz |
| Topology | Boost |
| Type | Inductive |
| Vin(Max) | 5.5 V |
| Vin(Min) | 2.7 V |
| Vout(Max) | 21 V |
生态计划
| RoHS | Compliant |
设计套件和评估模块
- Evaluation Modules & Boards: LM3509SDEV
LM3509SD Evaluation Board
Lifecycle Status: Active (Recommended for new designs)
应用须知
- Analog PWM Dimming in White-LED DriversPDF, 539 Kb, 档案已发布: Dec 21, 2016
Pulse-width modulation (PWM) is a common type of dimming used to adjust the current in white-LEDdriver devices. PWM dimming takes a rectangle waveform with variable positive duty cycle (D) and adjuststhe LED current proportionally. For many smaller format white LED drivers (7-inch screen size or smaller),the PWM signal is converted to a DC control voltage and made to drive the LED current in
模型线
系列: LM3509 (3)
- LM3509SD/NOPB LM3509SDE/NOPB LM3509SDX/NOPB
制造商分类
- Semiconductors > Power Management > LED Driver > Backlight LED Driver