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
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | 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年 9月 5日 |
| White paper | Common LED Functions and LED Driver Design Considerations | 2020年 9月 21日 | ||
| Application note | Build high density, high refresh rate, multiplexing LED panel with TLC5958 | 2014年 12月 17日 |
設計與開發
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TIDA-00161 — 帶有高度多工功能的 64x64 全彩 (R/G/B) LED 矩陣參考設計
Due to its higher integration and high time multiplexing support, this design drives total 12,288 individual LED lamps (= 64 x 64 x 3color) by only 8pcs of TLC5958 IC. Still this LED panel (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RTQ) | 56 | Ultra Librarian |
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