TLC5941
- 16 Channels
- 12-Bit (4096 Steps) Grayscale PWM Control
- Dot Correction
- 6 Bit (64 Steps)
- Drive
Capability (Constant-Current Sink)
- 0 mA to 80 mA
- LED Power Supply Voltage up to 17 V
- VCC = 3.0 V to 5.5 V
- Serial Data Interface
- Controlled In-Rush Current
- 30-MHz Data Transfer Rate
- CMOS Level I/O
- Error Information
- LOD: LED Open Detection
- TEF: Thermal Error Flag
- APPLICATIONS
- Monocolor, Multicolor, Full-Color LED Displays
- LED Signboards
- Display Back-Lighting
PowerPAD is a trademark of Texas Instruments.
The TLC5941 is a 16-channel, constant-current sink, LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers. Both grayscale control and dot correction are accessible via a serial interface. A single external resistor sets the maximum current value of all 16 channels.
The TLC5941 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | 16 Channel LED Driver w/DOT Correction and Grayscale PWM Control datasheet (Rev. D) | 2008/1/3 | |||
| 白皮書 | Common LED Functions and LED Driver Design Considerations | 2020/9/21 | ||||
| 應用說明 | Grayscale and Dot-Corrected LED Display Using TLC5941 and MSP430F427 (Rev. B) | PDF | HTML | 2018/9/27 | |||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Using the TLC5940 with Higher LED Supply Voltages and Series LEDs | 2007/8/20 | ||||
| 應用說明 | LED Driver--Paralleled Outputs Provide High Current Outputs | 2006/9/25 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
| VQFN (RHB) | 32 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。