TIDA-01236

Reference Design to Extend Coin Cell Battery Run Time in Wireless Ultrasonic Gas Leak Detector

TIDA-01236

Design files

Overview

This reference design demonstrates a low-power wireless sensor which detects gas leaks by analyzing the ultrasonic spectrum for particular signatures. The system is designed to operate from a single Li-Primary coin cell and communicate wirelessly to a base station, which removes all requirements for wiring and enables easy installation. The design incorporates an ultra-low-power battery fuel gauge to accurately predict battery health and provide advance notice of upcoming end-of-life for scheduled battery replacement.

Features
  • Accurate li-primary battery gauging enables extended lifetime and predictable maintenance
  • Uses multiple power domains to optimize system current consumption
  • System diagnostics available for precision power evaluation during development
  • Over three years of operation on coin cell battery ehen sensing every 30 seconds
  • Leak detection independent of gas type; does not require concentration of gas to contact sensor

Design files & products

Design files

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

TIDUCU1.PDF (3174 K)

Reference design overview and verified performance test data

TIDRVE1.PDF (250 K)

Detailed schematic diagram for design layout and components

TIDRVE2.PDF (67 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRVE3.PDF (198 K)

Detailed overview of design layout for component placement

TIDRVE5.ZIP (704 K)

Files used for 3D models or 2D drawings of IC components

TIDCEG1.ZIP (565 K)

Design file that contains information on physical board layer of design PCB

TIDRVE4.PDF (1267 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Audio CODECs

TLV320AIC3256Very Low-Power Stereo Codec with miniDSP and DirectPath™ HP Amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML
Battery fuel gauges

BQ35100Battery fuel gauge for non-rechargeable batteries (lithium primary) and end-of-service monitor

Data sheet document-pdfAcrobat PDF open-in-new HTML
Boost converters (integrated switch)

TPS61070Adjustable, 600-mA switch, 1200-kHz boost converter in ThinSOT-23 with power-saving mode

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS731150-mA, high-accuracy, ultra-low-dropout voltage regulator with reverse current protection & enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD13201W1012-V, N channel NexFET™ power MOSFET, single WLP 1 mm x 1 mm, 34 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML
Sub-1 GHz products

CC1310SimpleLink™ 32-bit Arm Cortex-M3 Sub-1 GHz wireless MCU with 128kB Flash

Data sheet document-pdfAcrobat PDF open-in-new HTML

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Software

Support software

TIDA-01236 Wireless Ultrasonic Gas Leak Sensor – TIDCEG2.ZIP (4209 K)

Technical documentation

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Type Title Date
* Design guide Extend Coin Cell Battery Run Time in Wireless Ultrasonic Gas Leak Detector Dec. 01, 2017

Related design resources

Hardware development

EVALUATION BOARD
BQ35100EVM-795 bq35100 Lithium Primary Cell Evaluation Module Using End-of-Service Monitor Gas Gauging LAUNCHXL-CC1310 SimpleLink™ Sub-1 GHz CC1310 wireless MCU LaunchPad™ development kit

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