TLC5958
- 48 Channels Constant Current Sink Output
- Sink Current Capability with Max BC/CC data:
- 25mA at 5VCC
- 20mA at 3.3VCC
- Global Brightness Control (BC) : 3-Bit (8 Step)
- Color Brightness Control (CC) for Each Color Group:
9-Bit (512 Step), Three Groups - Grayscale(GS) Control with Multiplexed
Enhanced Spectrum(ES) PWM: 16bit - 48K bit Grayscale Data Memory Support
32-multiplexing - LED Power Supply Voltage Up To 10V
- Vcc = 3.0V to 5.5V
- Constant Current Accuracy
- Channel to Channel = ±1%(Typ), ±3%(Max)
- Device to Device = ±1%(Typ), ±2%(Max)
- Data Transfer Rate: 25MHz
- Gray Scale Clock: 33MHz
- LED Open Detection (LOD)
- Thermal Shut Down (TSD)
- IREF Resistor Short Protection (ISP)
- Power-Save Mode (PSM) with high speed recovery
- Delay Switching to Prevent Inrush Current
- Pre-charge FET to Avoid Ghosting Phenomenon
- Operating Temperature : –40°C to +85°C
The TLC5958 is a 48 channels constant-current sink driver for multiplexing system with 1 to 32 duty ratio. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS).
48K bit display memory is implemented to increase the visual refresh rate and to decrease the GS data writing frequency.
The output channels are grouped into three groups, each group has 16 channels. Each group has a 512-step color brightness control (CC) function. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC) function. CC and BC can be used to adjust the brightness deviation between LED drivers. GS, CC, and BC data are accessible via a serial interface port.
Send request via email for Application Note: Build High Density, High Refresh Rate, Multiplexing LED Panel with TLC5958.
The TLC5958 has one error flag: LED open detection (LOD), which can be read via a serial interface port. The TLC5958 also has a power-save mode that sets the total current consumption to 0.8mA (typ) when all outputs are off.
Send request via email for Application Note: .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 | TLC5958 48-Channel, 16-Bit ES-PWM LED Driver with Pre-Charge FET, LED Open Detection and Display Data Memory Support 32-Multiplexing datasheet (Rev. A) | PDF | HTML | 2014/9/5 | ||
| 白皮書 | Common LED Functions and LED Driver Design Considerations | 2020/9/21 | ||||
| 應用說明 | Build high density, high refresh rate, multiplexing LED panel with TLC5958 | 2014/12/17 |
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)。
TIDA-00161 — 帶有高度多工功能的 64x64 全彩 (R/G/B) LED 矩陣參考設計
此參考設計為一個完整的 64 像素 x 64 像素紅/綠/藍 LED 面板，採用 TLC5958 驅動器 IC。
由於具備更高的整合度和高時間多工支援，此設計僅需 8 顆 TLC5958 IC 即可驅動總共 12,288 個個別 LED 燈（= 64 x 64 x 3 色）。 此 LED 面板仍可維持非常高的影片輸出品質。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RTQ) | 56 | 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。