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Product details

Parameters

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 open-in-new Find other LED display drivers

Package | Pins | Size

VQFN (RRF) 76 open-in-new Find other LED display drivers

Features

  • Separated VCC and VR/G/B power supply
    • VCC voltage range: 2.5 V - 5.5 V
    • VR/G/B voltage range: 2.5 V - 5.5 V
  • 48 current source channels from 0.2 mA to 20 mA
    • Channel-to-channel accuracy: ±0.5% (typ.), ±2% (max.); device-to-device accuracy: ±0.5% (typ.), ±2% (max.)
    • Low knee voltage: 0.26 V (max.) when IOUT = 5 mA
    • 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 190-mΩ RDS(ON)
  • Ultra-low power consumption
    • Independent VCC down to 2.5 V
    • Lowest ICC down to 3.9 mA with 50-MHz GCLK
    • Intelligent power saving mode
  • Built-in SRAM to support 1 - 32 multiplexing
    • 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 25-MHz (max.) SCLK with dual-edge transimission mechanism (internal 50 MHz)
    • Internal frequency multiplier to support GCLK range from 40 MHz - 160 MHz
  • Optimized display performance
    • Upside and downside ghosting removal
    • Low grayscale enhancement
    • LED open/short/weak short detection and removal

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Description

With the pixel density getting higher in narrow pixel pitch LED Display or Mini & Micro-LED products, there are urgent demands for LED drivers to address those critical challenges: ultra high integration to meet the strict board space limitation, ultra low power to minimize the system level power dissipation, new interface to enable high data refresh rate with low EMI impact, excellent display performance to serve the growing needs of higher display quality.

The TLC6983 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 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 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.

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Technical documentation

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Type Title Date
* Data sheet TLC6983 48x16 Common Cathode Matrix LED Display Driver with Ultra Low Power datasheet Dec. 17, 2020
More literature TLC6983EVM EU RoHS Declaration of Conformity (DoC) Jan. 14, 2021
User guide TLC6983 48x16 Common Cathode Matrix LED Display Driver Evaluation Module Dec. 30, 2020
Technical article Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical article LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Technical article Take better selfies with innovative LED flashes Nov. 18, 2014
Technical article Solving the automotive EMI issues in new cars with all the screens Sep. 11, 2014

Design & development

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Hardware development

EVALUATION BOARD Download
document-generic User guide
299
Description

The TLC6983 evaluation module used as a reference for engineering demonstration and evaluation. Included in the user’s guide are setup instructions, a schematic diagram, printed board (PCB) layout and a bill of materials (BOM).

Features
  • 48 current source channels from 0.2 mA to 20 mA
  • 16 scan line switches with 190-mΩ RDS(ON)
  • Ultra low power consumption
  • High speed and low EMI continuous clock series interface (CCSI)

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
(ZXL) 96 View options
VQFN (RRF) 76 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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