TLC5940
- 16 Channels
- 12 bit (4096 Steps) Grayscale PWM Control
- Dot Correction
- 6 bit (64 Steps)
- Storable in Integrated EEPROM
- Drive Capability (Constant-Current Sink)
- 0 mA to 60 mA (VCC < 3.6 V)
- 0 mA to 120 mA (VCC > 3.6 V)
- LED Power Supply Voltage up to 17 V
- VCC = 3 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
The TLC5940 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. The dot correction data is stored in an integrated EEPROM. Both grayscale control and dot correction are accessible through a serial interface. A single external resistor sets the maximum current value of all 16 channels.
The TLC5940 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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TLC5940 16-Channel LED Driver With DOT Correction and Grayscale PWM Control 数据表 (Rev. D) | PDF | HTML | 2015-12-3 | ||
| 白皮书 | 常见 LED 功能和 LED 驱动器设计注意事项 | 英语版 | 2020-9-21 | |||
| 应用手册 | Grayscale and Dot-Corrected LED Display Using TLC5941 and MSP430F427 (Rev. B) | PDF | HTML | 2018-9-27 | |||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 应用手册 | Hardware Design Considerations for a Wireless LED based Display Design | 2014-6-11 | ||||
| 应用手册 | LED 驱动器--并行输出提供高电流输出 | 英语版 | 2008-7-15 | |||
| 应用手册 | Using the TLC5940 with Higher LED Supply Voltages and Series LEDs | 2007-8-20 | ||||
| 应用手册 | TLC5940 One Wire Control--Eliminating Microprocessor Control for Integr LED Driv | 2006-9-25 | ||||
| 应用手册 | LED Display System Module Using Cascading TLC5940 Devices | 2006-7-6 | ||||
| 模拟设计期刊 | TLC5940 PWM dimming provides superior color quality in LED video displays | 2006-4-18 | ||||
| 用户指南 | TLC5940 Programming Flow Chart | 2006-1-26 | ||||
| 模拟设计期刊 | TLC5940 dot correction compensates for variations in LED brightness | 2005-10-10 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
LED-FRAME-DESIGNER — LED Frame Designer
LED Frame Designer Software allows the user to individually control the Dot Correction and PWM dimming levels for each LED on the TLC59xx EVM. The software also allows the user to program and play multiple LED “frames” to create different lighting patterns on the EVM.
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
| VQFN (RHB) | 32 | Ultra Librarian |