随着窄像素间距 LED 显示或 Mini/Micro-LED 产品的像素密度不断提高,我们迫切需要使用 LED 驱动器来应对各种关键挑战,即通过超高集成度满足严格的布板空间限制,通过超低功耗更大程度地降低系统级功耗,通过全新的接口实现高数据刷新率并减少 EMI 的影响,通过出色的显示性能满足不断增长的高显示质量的需求。
TLC6983 是高度集成的共阴极矩阵 LED 显示驱动器,有 48 个恒流源和 16 个扫描 FET。单个 TLC6983 能驱动 16 × 16 RGB LED 像素,两个 TLC6983 堆叠后可驱动 32 × 32 RGB LED 像素。为实现低功耗,该器件可通过其共阴极结构为红色、绿色和蓝色 LED 提供分立式电源。此外,通过超低的工作电压范围(Vcc 低至 2.5V)和超低的工作电流(Icc 低至 3.9mA),TLC6983 可显著降低运行功率。
The TLC6983 implements a high speed dual-edge transmission interface to support high device count daisy-chained and high refresh rate while minimizing electrical-magnetic interference (EMI). The device supports up to 25-MHz SCLK (external) and up to 160-MHz GCLK (internal). Meanwhile, the device integrates enhanced circuits and intelligent algorithms to solve the various display challenges in Narrow Pixel Pitch (NPP) LED display applications and Mini / Micro-LED products: Dim at the fist scan line, Upper and downside ghosting, Non-uniformity in low grayscale, Coupling, and Caterpillar caused by open or short LEDs, which make the TLC6983 a perfect choice in such applications.
The TLC6983 also implements LED open/weak short/short detections and removals during operations and can also report this information to the accompanying digital processor.
| Features | 48CH LED Driver, Fault Detection, Internal GS Clock, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, Matrix, Pre-Charge FET, SRAM, Thermal shutdown |
| Data transfer rate (typ) (MHz) | 50 |
| Ch to ch accuracy (typ) (±%) | 1 |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| NFBGA (ZXL) | 96 | 36 mm² 6 x 6 |
| VQFN (RRF) | 76 | 81 mm² 9 x 9 |