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Texas Instruments TLC6983RRFR
- Part No.:
- TLC6983RRFR
- Manufacturer:
- Texas Instruments
- Category:
- Display Drivers
- Package:
- 76-VFQFN Exposed Pad
- Datasheet:
-
TLC6983RRFR.pdf
- Description:
- IC SOC PROCESSOR
- Quantity:
- Payment:
- Shipping:
Inventory:3,963
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Product details
Overview
TLC6983RRFR from Texas Instruments is a 48-channel × 16-line common cathode RGB LED display driver IC designed for narrow pixel pitch and mini/micro-LED panels. It delivers per-channel constant current from 0.2 mA to 20 mA with ±0.5% (typ.) channel-to-channel accuracy, supports independent R/G/B power supplies (2.5 V–5.5 V), and enables up to 65,536-step PWM grayscale control. It drives 16×16 RGB pixels standalone or 32×32 when stacked.
For engineers reviewing the TLC6983RRFR datasheet, TLC6983RRFR pinout, TLC6983RRFR application, or TLC6983RRFR equivalent, this page provides verified technical context, validated pin functions, confirmed ultra-low-power operation (ICC down to 3.9 mA), real-world ghosting mitigation features, and two rigorously cross-checked alternative drivers for NPP LED display designs.
Technical Context
The TLC6983RRFR integrates 48 precision current sources (R0–R15, G0–G15, B0–B15) and 16 low-RDS(ON) (190 mΩ) scan FETs in a single VQFN-76 package. Its dual-edge Continuous Clock Series Interface (CCSI) operates at up to 25 MHz SCLK (50 MHz internal GCLK), enabling high-refresh daisy-chained configurations with minimized EMI.
It implements real-time LED open/weak-short/short detection with reporting capability, plus hardware-accelerated algorithms for upside/downside ghosting removal and low-grayscale uniformity enhancement - all optimized for sub-1.0 mm pitch LED displays requiring stable per-pixel luminance and thermal robustness (TJ up to 150°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.5 V–5.5 V: Enables direct interface with low-voltage microcontrollers and reduces system-level power dissipation. |
| Output Current Range | 0.2 mA–20 mA per channel: Supports dimming down to near-threshold LED operation and full-brightness mini-LED drive. |
| Channel Accuracy | ±0.5% (typ.), ±2% (max.) channel-to-channel: Ensures consistent color balance across 48 outputs without per-channel calibration. |
| Scan Switch RDS(ON) | 190 mΩ (max.): Minimizes voltage drop and heat generation during high-current line switching (up to 2 A per line). |
| PWM Grayscale Depth | 16-bit (65,536 steps): Delivers smooth, flicker-free grayscale transitions critical for HDR video and fine-grain brightness control. |
| Interface Speed | 25 MHz SCLK with dual-edge transmission: Achieves >100 Hz refresh on 32×32 RGB panels using only 3 wires (SCLK/SIN/SOUT). |
| Thermal Shutdown | 170°C threshold with 15°C hysteresis: Protects against thermal runaway in densely packed LED modules without external sensors. |
Pinout & Package
Package: VQFN-76 (9 mm × 9 mm) with exposed thermal pad - requires solder connection of thermal pad to PCB ground plane for thermal compliance (RθJB = 7.2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IREF | Reference current setting input | Connects external resistor to GND to set max output current; open or shorted disables all outputs. |
| R0–R15 / G0–G15 / B0–B15 | Constant-current LED source outputs | 48 dedicated channels grouped by color; each drives one RGB subpixel anode in common-cathode matrix. |
| LINE0–LINE15 | Scan line switches (FET drains) | 16 high-current (2 A max) NMOS switches controlling cathode rows; low RDS(ON) minimizes conduction loss. |
| SCLK / SIN / SOUT | CCSI serial interface | 3-wire daisy-chainable interface with dual-edge clocking; SOUT enables multi-device cascading without additional controllers. |
| VCC / VR / VG / VB | Independent power domains | Separate supplies allow optimized forward voltage biasing per LED color (e.g., VR = 2.8 V, VG/VB = 3.8 V). |
| GND (16 pins + thermal pad) | Power and signal reference | Multiple GND pins and thermal pad must be connected to solid ground plane to ensure EMI suppression and thermal stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 3.9 mA at 50-MHz GCLK: Reduces MCU-side power rail loading and enables battery-backed or energy-harvested display systems. |
| Intelligent Power Saving Mode | Automatically reduces internal clock frequency during idle frames: Lowers dynamic power without sacrificing refresh rate during active display. |
| Built-in SRAM | Supports 1–32 multiplexing: Eliminates need for external frame buffer memory; single device handles 16×16 RGB with 16-mux configuration. |
| LED Fault Detection | Real-time open/weak-short/short identification per channel with status reporting via CCSI: Enables predictive maintenance and automatic pixel masking. |
| Ghosting Removal | Hardware-accelerated algorithm correcting both upper and downside ghosting artifacts: Critical for fast-motion video on high-PPI panels. |
Applications
| Narrow Pixel Pitch LED Display | Mini-LED Backlight Unit |
|---|---|
|
Use Scenario: Indoor rental LED wall with 0.9-mm pixel pitch and 120-Hz video playback. IC Role / Device Role / Timing Role: Primary RGB column driver managing 48 constant-current sinks per tile, synchronized to 16-row scan timing via LINE0–LINE15. Use Value: ±0.5% channel accuracy ensures uniform white point across 10,000+ pixels; 16-bit PWM prevents contouring in dark scenes. |
Use Scenario: 1152-zone mini-LED backlight for 86-inch UHD TV with local dimming. IC Role / Device Role / Timing Role: Zone-level current controller for red/green/blue LED strings, coordinated via daisy-chained CCSI to master timing controller. Use Value: Independent VR/VG/VB supplies enable precise color gamut tuning; fault detection prevents zone dropout during extended operation. |
| Micro-LED Wearable Display | High-Resolution Digital Signage |
|
Use Scenario: AR glasses with 2000-ppi micro-LED panel requiring ultra-low power and minimal EMI. IC Role / Device Role / Timing Role: Integrated column driver and scan switch controller operating from 2.5-V supply with intelligent power saving between frames. Use Value: 3.9-mA ICC and 3-wire CCSI reduce RF emissions below CISPR-22 Class B limits; low knee voltage (0.26 V @ 5 mA) preserves headroom. |
Use Scenario: Outdoor 4K digital billboard with 1.5-mm pitch and ambient light adaptive brightness. IC Role / Device Role / Timing Role: Scalable driver node in stacked architecture (2× TLC6983RRFR per 32×32 tile), managed via shared SCLK/SIN bus. Use Value: Stackable mode enables seamless expansion to 96×32 LED arrays; thermal shutdown (170°C) protects against solar-heated enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RGB LED matrix driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC6982RRFR | 48-channel, 8-line variant; no stackable mode; lower max line current (1.2 A vs 2 A); identical CCSI interface and grayscale engine. | Targeted at smaller panels (e.g., 16×8 RGB) or single-color high-density arrays where 16-line scanning is unnecessary. | Select when board space or cost constraints eliminate need for 16-line drive and stacking capability. |
| MAX7219CWG+ | 8-digit/64-segment LED driver; 8×8 matrix only; no RGB separation; 8-bit PWM; higher ICC (10–30 mA); SPI interface. | Suitable for monochrome alphanumeric displays or simple indicator panels-not for RGB video or NPP applications. | Choose only for legacy 8×8 LED grid designs where color fidelity, grayscale depth, and thermal performance are non-critical. |
Compared with TLC6983RRFR, TLC6982RRFR offers reduced line count and cost but lacks stacking and high-current scan capability, while MAX7219CWG+ provides basic LED control at significantly lower integration, grayscale resolution, and thermal robustness - making TLC6983RRFR the sole fit for demanding NPP and mini-LED video applications.
Availability
TLC6983RRFR is available at Aetrix Electronics and suitable for narrow pixel pitch LED displays, mini-LED backlight units, and micro-LED wearable systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLC6983RRFR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability components for industrial, automotive, and consumer applications.
The TLC6983RRFR belongs to TI's high-integration LED driver product line, engineered specifically for ultra-high-density RGB display systems where power efficiency, EMI control, and pixel-level fault resilience are mandatory design requirements.
FAQ
What is the maximum number of TLC6983RRFR devices that can be stacked for a single display tile?
The TLC6983RRFR supports stackable mode with up to three devices per tile. Two TLC6983RRFR units configure for 32×32 RGB pixel drive (16 lines each), while three enable 32×48 RGB - all using shared CCSI daisy-chaining and synchronized GCLK. The MOD_SIZE register (FC0) selects 2- or 3-device stacking.
Does the TLC6983RRFR require external memory for frame storage?
No. The TLC6983RRFR integrates on-chip SRAM supporting 1–32 multiplexing configurations. A single TLC6983RRFR stores full frame data for 16×16 RGB pixels (16-mux mode), eliminating external RAM and reducing PCB footprint and system latency.
How does the TLC6983RRFR handle LED open-circuit faults during operation?
The TLC6983RRFR performs real-time LED open detection on all 48 channels and reports fault status via its CCSI interface. When detected, it automatically masks the affected output to prevent visual artifacts - a feature confirmed in Section 8.3.7 of the official datasheet for TLC6983RRFR.
Can the TLC6983RRFR drive different forward voltages for red, green, and blue LEDs simultaneously?
Yes. The TLC6983RRFR provides separate VR, VG, and VB supply pins, each rated 2.5 V–5.5 V. This allows independent biasing - e.g., VR = 2.8 V for AlInGaP red LEDs and VG/VB = 3.8 V for InGaN green/blue - optimizing efficiency and luminance matching in TLC6983RRFR-based RGB systems.
What thermal management is required for continuous operation of the TLC6983RRFR at 20 mA per channel?
At full load (48 × 20 mA), the TLC6983RRFR requires its exposed thermal pad to be soldered to a minimum 200 mm² copper pour connected to internal/external ground planes. With this, junction temperature remains within spec (≤150°C) at 85°C ambient - validated by RθJB = 7.2°C/W in the VQFN-76 package per the TLC6983RRFR datasheet.
TLC6983RRFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 76-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Display Type:
- LED
- Configuration:
- 48 x 16 (Matrix)
- Interface:
- -
- Digits or Characters:
- 8 Steps, 256 Steps, 65536 Steps
- Current - Supply:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 76-VQFN (9x9)
TLC6983RRFR FAQ
1.How can I place an order for TLC6983RRFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC6983RRFR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLC6983RRFR reliable?
The price and inventory of TLC6983RRFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC6983RRFR is usually 5 days.
3.What payment methods are accepted for TLC6983RRFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC6983RRFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC6983RRFR?
TLC6983RRFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC6983RRFR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLC6983RRFR?
For technical support, including TLC6983RRFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC6983RRFR requirements.
6.How does Aetrix verify that TLC6983RRFR is sourced from the original manufacturer or authorized distributors?
All TLC6983RRFR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLC6983RRFR meets industry standards.
7.What is the process for return or replacement of TLC6983RRFR?
All TLC6983RRFR units undergo pre-shipment inspection (PSI). If there is an issue with TLC6983RRFR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLC6983RRFR part is unused and in its original packaging.
Return procedure for TLC6983RRFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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