SLVSEJ1A February 2021 – May 2022 TLC6983
PRODUCTION DATA
The TLC6983 is a highly integrated RGB LED driver with 48 constant current sources and 16 scanning FETs. A single TLC6983 is capable of driving 16 × 16 RGB LED pixels while stacking two TLC6983s can drive 32 × 32 RGB LED pixels. To achieve low power consumption, the device supports separated power supplies for the red, green, and blue LEDs by its common cathode structure. Furthermore, the operation power of the TLC6983 is significantly reduced by ultra-low operation voltage range (VCC down to 2.5 V) and ultra-low operation current (ICC down to 3.9 mA).
The TLC6983 supports per channel current from 0.2 mA to 20 mA, with typical 1% channel-to-channel current deviation and typical 1% device-to-device current deviation. The DC current value of all 48 channels is set by an external IREF resistor and can be adjusted by the 8-step global brightness control (BC) and the 256-step per-color group brightness control (CC_R/CC_G/CC_B).
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 TLC6983 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 and micro-LED products: dim at the first scan line, upper and downside ghosting, non-uniformity in low grayscale, coupling, 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.