RGB Signal Light With IO-Link Interface Reference Design
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document


This reference design implements a five-segment LED smart stack light with 20 LEDs used in factory floor and industrial process automation of greater complexity. An IO-Link interface is implemented for controlling the stack light and reading back status information. The design features low power consumption to be powered through the IO-Link interface.

This signal light reference design demonstrates how the power dissipation of the RGB LED driver can be reduced by 30% and the range of the brightness control can be extended. Automatic brightness control adapts the brightness to ambient light. The reference design uses a simple PWM to modify the output voltage of a switching regulator to implement dynamic headroom control.

  • Flexible and easy-to-control RGB LED tower light design
  • Different implemented modes: demo, temperature, humidity, stacklight
  • Fully controllable through IO-link
  • Five segments consisting of 20 RGB LEDs
  • Dynamic headroom control of linear RGB LED driver to reduce power consumption by 30%
  • Automatic brightness control

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files

TI Devices (9)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD13202Q2  12V, N ch NexFET MOSFET™, single SON2x2, 9.3mOhm  MOSFETs  Sample & Buy Not Available
HDC1080  ±2% low-power digital humidity and temperature sensor  Sensors  Sample & Buy View Design Kits & Evaluation Modules
LM5166  3V-65V Input, 500mA Synchronous Buck Converter With Ultra-Low Iq  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR5969  MSP430FR5969 16 MHz Ultra-Low-Power Microcontroller featuring 64 KB FRAM, 2 KB SRAM, 40 IO  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
OPT3001  Digital ambient light sensor (ALS) with high-precision human-eye response  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
TIOL111  IO-Link device transceiver with integrated surge protection  Interface  Sample & Buy View Design Kits & Evaluation Modules
TLC5971  12-Channel, 16-Bit ES-PWM RGB LED Driver with 3.3V Linear Regulator  LED drivers  Sample & Buy Not Available
TPS54062  4.7V to 60V Input, 50mA Synchronous Step-Down Converter with Low IQ  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TVS3300  33V Flat-Clamp Surge Protection Device  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD13202Q2 WSON (DQK)| 6 Download
HDC1080 Download Download
LM5166 Download Download
MSP430FR5969 Download Download
OPT3001 Download Download
TIOL111 Download Download
TLC5971 Download Download
Download Download
TPS54062 Download Download
Download Download
TVS3300 Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 2417 11 Sep 2017
Design files (6)
Title Type Size (KB) Date
ZIP 602 11 Sep 2017
ZIP 2143 11 Sep 2017
PDF 1721 11 Sep 2017
PDF 413 11 Sep 2017
PDF 106 11 Sep 2017
PDF 1361 11 Sep 2017
Related Tools & Software

Development Tools (1)

Name Part Number Tool Type
SPICE-based analog simulation program  TINA-TI  Circuit Design & Simulation 

Models (1)

Title Category Type Size (KB) Date Views
TIDA-01437 Simulation TINA-TI Reference Design ZIP 225 KB 18 Apr 2018

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles