TLC5929
- 16 Constant-Current Sink Output Channels with On/Off Control
- Current Capability:
- 40 mA (VCC ≤ 3.6 V)
- 50 mA (VCC > 3.6 V)
- Global Brightness Control: 7-Bit (128 Steps)
- Power-Supply Voltage Range: 3.0 V to 5.5 V
- LED Power-Supply Voltage: Up to 10 V
- Constant-Current Accuracy:
- Channel-to-Channel = ±1% (typ), ±3% (max)
- Device-to-Device = ±2% (typ), ±4% (max)
- Data Transfer Rate: 33 MHz
- BLANK Pulse Width: 40 ns (min)
- LED Open Detection (LOD)/LED Short Detection (LSD) with
Invisible Detection Mode (IDM) - Output Leakage Detection (OLD) Detects 3 µA Leak
- Pre-Thermal Warning (PTW)
- Thermal Shutdown (TSD)
- Current Reference Terminal Short Flag (ISF)
- Power-Save Mode with 10-µA Consumption
- Undervoltage Lockout Sets the Default Data
- 2-ns Delayed Switching Between Each Channel Minimizes Inrush Current
- Operating Temperature:
–40°C to +85°C
The TLC5929 is a 16-channel constant current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The constant current value of all 16 channels is set by a single external resistor with 128 steps for the global brightness control (BC).
The TLC5929 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short detection (ISF), pre-thermal warning (PTW) and thermal error flag (TEF). In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off. The error detection results can be read via a serial interface port.
The TLC5929 also has a power-save mode that sets the total current consumption to 10 µA (typ) when all outputs are off.
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-Ch, Constant-Curr LED Drvr w/7-Bit Brightness Cntrl, Pwr-Save Mode, Self-Diag datasheet (Rev. B) | 2012/7/24 | |||
| 白皮書 | Common LED Functions and LED Driver Design Considerations | 2020/9/21 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| EVM User's guide | Using the TLC5929, 16-Channel LED Driver | 2012/7/2 |
設計與開發
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TLC5929EVM-118 — TLC5929EVM-118 評估模組
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 24 | Ultra Librarian |
| VQFN (RGE) | 24 | Ultra Librarian |
| SSOP (DBQ) | 24 | 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。