TLC5925
- 16 Constant-Current Output Channels
- Constant Output Current Invariant to Load Voltage
Change - Excellent Output Current Accuracy:
- Between Channels: < ±4% (Max)
- Between ICs: < ±6% (Max)
- Constant Output Current Range:
3 mA to 45 mA - Output Current Adjusted By External Resistor
- Fast Response of Output Current, OE (Min):
100 ns - 30-MHz Clock Frequency
- Schmitt-Trigger Inputs
- 3.3-V to 5-V Supply Voltage
- Thermal Shutdown for Overtemperature
Protection - ESD Performance: 1-kV HBM
The TLC5925 is designed for LED displays and LED lighting applications. The TLC5925 contains a 16-bit shift register and data latches, which convert serial input data into parallel output format. At the TLC5925 output stage, 16 regulated-current ports provide uniform and constant current for driving LEDs within a wide range of VF variations. Used in system design for LED display applications (such as, LED panels), the TLC5925 provides great flexibility and device performance. Users can adjust the output current from 3 mA to 45 mA through an external resistor, Rext, which gives flexibility in controlling the light intensity of LEDs. TLC5925 is designed for up to 17 V at the output port. The high clock frequency, 30 MHz, also satisfies the system requirements of high-volume data transmission.
The serial data is transferred into TLC5925 via SDI, shifted in the shift register, and transferred out via SDO. LE can latch the serial data in the shift register to the output latch. OE enables the output drivers to sink current.
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 | TLC5925 Low-Power 16-Channel Constant-Current LED Sink Driver datasheet (Rev. B) | PDF | HTML | 2015/9/29 | ||
| 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 |
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)。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SSOP (DBQ) | 24 | Ultra Librarian |
| TSSOP (PW) | 24 | Ultra Librarian |
| SOIC (DW) | 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。