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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftlc6983″>View Datasheet

Texas Instruments TLC6983 LED Display Driver

Texas Instruments TLC6983 LED Display Driver is a highly integrated common-cathode matrix LED display driver with 48 constant current sources and 16 scanning FETs. A single TLC6983 is capable of driving 16 × 16 RGB LED pixels. 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 2.5V) and ultra-low operation current (ICC down to 3.9mA).

The Texas Instruments 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 25MHz SCLK (external) and up to 160MHz 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. This driver can dim at the first scan line, upper and downside ghosting, non-uniformity in low grayscale, coupling, and caterpillar caused by open or short LEDs. These features make the TLC6983 a perfect choice in these 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

  • Separated VCC and VR/G/B power supply
    • 2.5V to 5.5V VCC voltage range
    • 2.5V to 5.5V VR/G/B voltage range
  • 48 current source channels from 0.2mA to 20mA
    • Channel-to-channel accuracy: ±0.5% (typ.), ±2% (max.); device-to-device accuracy: ±0.5% (typ.), ±2% (max.)
    • Low knee voltage: 0.26V (max.) when IOUT = 5mA
    • 3-bits (8 steps) global brightness control
    • 8-bits (256 steps) color brightness control
    • Maximum 16-bits (65536 steps) PWM grayscale control
  • 16 scan line switches with 190mΩ RDS(ON)
  • Ultra-low power consumption
    • Independent VCC down to 2.5V
    • Lowest ICC down to 3.9mA with 50MHz GCLK
    • Intelligent power-saving mode
  • Built-in SRAM to support 1 to 32 multiplexing
    • A single device with 16 multiplexing to support 32 × 16 LEDs or 16 × 16 RGB pixels
    • Dual devices stackable with 32 multiplexing to support 96 × 32 LEDs or 32 × 32 RGB pixels
  • High speed and low EMI Continuous Clock Series Interface (CCSI)
    • Only three wires (SCLK/SIN/SOUT)
    • External 25MHz (max.) SCLK with dual-edge transmission mechanism (internal 50MHz)
    • Internal frequency multiplier to support GCLK range from 40MHz to 160MHz
  • Optimized display performance
    • Upside and downside ghosting removal
    • Low grayscale enhancement
    • LED open/short/weak short detection and removal

Applications

  • Narrow Pixel Pitch (NPP) LED display
  • Mini & micro-LED products

Application Circuit Diagram

Application Circuit Diagram - Texas Instruments TLC6983 LED Display Driver

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Texas Instruments TLC6983 LED Display Driver