Capacitive Touch Based User Interface with Proximity Sensing and LED Animation Reference Design
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Key Document


The TIDA-01559 is a Human Machine Interface (HMI) reference design that uses the MSP430FR2522 MCU and LP5569 device, and can achieve extremely low standby power consumption and offload the resources of the MCU with LED engine control. This solution can be used anywhere a low-power consuming HMI with good EMI performance and moisture immunity is required.  Examples are a kitchen exhaust hood, cooker top, and refrigerator.

  • Minimum MCU loading when running preset lighting pattern
  • Lower system current consumption through LP5569 engine control
  • Extra low quiescent current during standby mode
  • Full diagnostic and protection
  • Good performance moisture immunity

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Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LP5569  Nine-channel I2C RGB LED driver with engine control and charge pump  LED drivers  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR2522  Capacitive touch MCU with 8 touch IO (16 sensors), 8KB FRAM, 2KB SRAM, 15 IO, 10-bit ADC  Microcontrollers (MCUs)  Sample & Buy View Design Kits & Evaluation Modules
TLV733P  300-mA, capacitor-free, low-IQ, low-dropout voltage regulator with enable  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LP5569 Download Download
MSP430FR2522 Download Download
Download Download
TLV733P Download Download
Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 542 22 Jun 2018
Design files (6)
Title Type Size (KB) Date
ZIP 247 22 Jun 2018
ZIP 634 22 Jun 2018
PDF 687 22 Jun 2018
PDF 83 22 Jun 2018
PDF 162 22 Jun 2018
PDF 282 22 Jun 2018
More literature (1)
Title Type Size (KB) Date
ZIP 778 22 Jun 2018

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