Various LED Ring Lighting Patterns Reference Design
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Key Document


This reference design enables human-machine interface scenarios with an LED ring that utilizes two LP5024 LED drivers to create vivid lighting patterns. Design helps to resolve common challenges for end equipment with complicated lighting patterns and constant voltage supply. This design can also adjust LP5024 brightness with analog dimming without impacting the lighting pattern contrast ratio on dynamic ambient light sense.

  • Vivid lighting patterns with 12-Bit, 29-kHz PWM dimming through an I2C interface
  • Ultra-Low standby current down to 10 μA with automatic power saving mode
  • Programmable banks (R/G/B) for easy software control of each color
  • Dynamically adjusts brightness on ambient light sense

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Schematic/Block Diagram

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LP5024  24-channel I2C constant-current RGB LED driver  LED drivers  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

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LP5024 Download
OPT3001 Download Download

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Technical documentation

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Data sheet (2)
Title Type Size (KB) Date
PDF 2211 24 Oct 2018
PDF 1320 06 Nov 2017
User guide (1)
Title Type Size (KB) Date
PDF 386 01 Nov 2018
White paper (3)
Title Type Size (KB) Date
PDF 800 25 Feb 2019
PDF 853 08 Feb 2019
PDF 973 08 Feb 2019
Design files (6)
Title Type Size (KB) Date
ZIP 1245 01 Nov 2018
ZIP 782 01 Nov 2018
PDF 904 01 Nov 2018
PDF 200 01 Nov 2018
ZIP 179 01 Nov 2018
PDF 52 01 Nov 2018
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Software development (1)

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