TLC5946
- 16 Channels, Constant Current Sink Output
- 40-mA Capability (Constant Current Sink)
- 12-Bit (4096 Steps) Grayscale PWM Control
- 6-Bit (64 Steps) Dot Correction
- LED Power-Supply Voltage up to 17 V
- VCC = 3.0 V to 5.5 V
- Constant Current Accuracy:
- Channel-to-Channel = ±1% (typ)
- Device-to-Device = ±2% (typ)
- 30-MHz Data Transfer Rate
- 33-MHz Grayscale PWM Clock
- Extended Serial Interface
- CMOS Level I/O
- Schmitt Buffer Input
- Readable Error Information:
- Continuous Base LED Open Detection (LOD)
- Thermal Error Flag (TEF)
- Noise Reduction:
- 4-Channel Grouped Delay
- Operating Temperature: -40°C to +85°C
- APPLICATIONS
- Monochrome, Multicolor, Full-Color LED Displays
- LED Signboards
- Display Backlighting
PowerPAD is a trademark of Texas Instruments, Inc.
The TLC5946 is a 16-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant current sink steps for dot correction. The dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via a serial interface. The maximum current value of all 16 channels can be set by a single external resistor.
The TLC5946 has two error information circuits: one for LED open detection (LOD), and a thermal error flag (TEF). LOD detects a broken or disconnected LED during display period. TEF indicates an over-temperature condition.
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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 | 16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction 数据表 (Rev. B) | 2008-6-23 | |||
| 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 | |||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 用户指南 | TLC5946EVM-274 User's Guide | 2009-4-15 |
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）。
TLC594XEVM-SW — TLC594xEVM Software Version 2.0.1.5
The TLC594x Graphical User Interface (GUI) allows users to change colors and interact with the TLC594x board. The program can be used with or without the board attached.
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 28 | Ultra Librarian |
| HTSSOP (PWP) | 28 | Ultra Librarian |
| VQFN (RHB) | 32 | Ultra Librarian |
订购和质量
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