開發模組 (EVM) 的 GUI
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.
TLC5944
- 16 Channels, Constant Current Sink Output
- 60-mA Capability (Constant Current Sink)
- 12-Bit (4096 Steps) Grayscale Control with PWM
- 6-Bit (64 Steps) Dot Correction with Sink Current
- Internal Pre-Charge FET to Prevent LED Ghosting Phenomenon on Multiplexed LED Systems
- LED Power-Supply Voltage up to 15 V
- VCC = 3.0 V to 5.5 V
- Constant Current Accuracy:
- Channel-to-Channel = ±1%
- Device-to-Device = ±3%
- CMOS Logic Level I/O
- 30-MHz Data Transfer Rate
- 33-MHz Grayscale Control Clock
- Continuous Base LED Open Detection (LOD):
- Detect LED opening and LED short to GND during display with auto output off function
- Thermal Shutdown (TSD):
- Automatic shutdown at over-temperature conditions
- Restart under normal temperature
- Pre-Thermal Warning (PTW):
- High temperature operation alert
- Readable Error Information:
- LED Open Detection (LOD)
- Thermal Error Flag (TEF)
- Pre-Thermal Warning (PTW)
- Noise Reduction:
- 4-channel grouped delay to prevent inrush current
- Operating Temperature: -40°C to +85°C
- APPLICATIONS
- Monochrome, Multicolor, Full-Color LED Displays Using Multiplexing System
- LED Signboards Using Multiplexing System
All trademarks are the property of their respective owners.
The TLC5944 is a 16-channel, constant current sink driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant sink current (dot correction) steps. The dot correction (DC) adjusts for brightness variations between LEDs. Both grayscale (GS) control and DC are accessible via a common serial interface port. The maximum current value of all 16 channels can be set by a single external resistor.
The TLC5944 has an internal pre-charge FET to prevent the ghost-lighting phenomenon that occurs on multiplexed LED systems. The TLC5944 has three error detection circuits for LED open detection (LOD), a thermal error flag (TEF), and a pre-thermal warning (PTW). The LOD detects a broken or disconnected LED, and a shorted LED to GND during the display period. The TEF indicates a too-high temperature condition; when the TEF is set, all output drivers are turned off by the thermal shutdown (TSD) protection. Additionally, when the TEF is cleared, all output drivers are restarted. The PTW indicates that the IC is operating in a high temperature condition. The output drivers remain on when PTW is set.
技術文件
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檢視所有 4 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | 16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction and Pre-Charge FET datasheet (Rev. A) | 2009年 7月 7日 | |
| White paper | Common LED Functions and LED Driver Design Considerations | 2020年 9月 21日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| EVM User's guide | TLC5944EVM-358 User's Guide | 2009年 4月 15日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| 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
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點