TIDA-00343: Low-Power Touch Through Glass Reference Design

Summary

Human Machine Interface (HMI) is an essential part of process plants since it is one of the major ways through which humans and machines interact. The TIDA-00343 reference design offers an HMI solution for harsh and hazardous area applications. In process plants, operators need to interact with an explosion-proof display/controller which is encapsulated in a screw-on metallic enclosure with a thick glass window for local read out and programming functions.

Thanks to the TIDA-00343 TI Design which uses MSP430™ microcontrollers (MCU) with CapTIvate™ technology the operator will be able to interact with the controller without the need of opening the enclosure saving time by avoiding work permit or plant shutdown.

Features

Four Robust Buttons Option Implemented
Variable Airgap between Buttons and Glass(1-2mm)
Finger Detection through 10mm Thick Glass
Work with Gloves and in Harsh Environment(Water, Oil, Dust, etc)
Temperature Range: -40°C to 85°C
Low Power(~10Hz Scan Rate): 240µA-avg

Specifications

Manufacturer	Texas Instruments
Category	Sensor Solutions
Sub-Category	Capacitive Sensing
Eval Board Part Number	296-43746-ND
Eval Board Supplier	Texas Instruments
Eval Board	Board not Stocked
Number & Type of Sensors	4 Buttons
Features	I²C Interface
Application / Target Market	HMI Interfaces White Goods
Component Count + Extras	8 + 5
Design Author	Texas Instruments
Voltage In	3.3 V
Sleep Mode Current [Maximum]	- Not Given
Main I.C. Base Part	MSP430FR2633
Quiescent Current [Maximum]	3.4 mA
Sleep Mode Current [Typical]	- Not Given
Quiescent Current [Typical]	240 µA
Date Created By Author	2016-03
Date Added To Library	2018-07