TIDA-010941

Smart analog sensor interface for smoke detection with ambient light cancellation reference design

TIDA-010941

Design files

Overview

This reference design provides a low BOM cost smoke detector design that passes UL217 9th edition sensitivity and fire room tests. Using a modulation-based photoelectric architecture, this reference design is able to achieve high rejection of ambient light for application in chambered or chamberless smoke detection. This design also has a high signal-to-noise ratio for the signal chain that helps to enable robust algorithms for reduced false alarms in smoke detector applications and particulate sensing in air quality sensing applications. This design uses the low-power modes of the MSPM0L1306 microcontroller to achieve 10 years of battery life from a 9V alkaline battery.

Features
  • Modulation-based sensing signal chain with ambient light rejection
  • Advanced compressive sensing technique for low-power operation
  • Dual wavelength, dual angle optical design for reduced false alarm smoke detection and particulate air quality sensing
  • Signal chain signal-to-noise ratio of 77dB (300 pulses)
  • Total current consumption of 5.8uA (16 pulses, 0.1Hz ODR) for 10+ years battery life with 9V alkaline battery
  • Passes UL217 9th edition sensitivity and fire room tests
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

PDF | HTML
TIDUF52.PDF (3116 KB)

Reference design overview and verified performance test data

SSIT003.PDF (2140 KB)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDMCB0.PDF (267 KB)

Detailed overview of design layout for component placement

TIDMCA9.PDF (130 KB)

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

TIDMC63.ZIP (97 KB)

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

TIDMCB2.ZIP (1579 KB)

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

TIDCGK4.ZIP (456 KB)

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

TIDMCB1.PDF (1082 KB)

PCB layer plot file used for generating PCB design layout

TIDMCA8.PDF (429 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

General-purpose op amps

TLV9062Dual, 5.5-V, 10-MHz operational amplifier

Data sheet: PDF | HTML
Arm Cortex-M0+ MCUs

MSPM0L130632-MHz Arm® Cortex®-M0+ MCU with 64-KB flash, 4-KB SRAM, 12-bit ADC, comparator, OPA

Data sheet: PDF | HTML
Humidity sensors

HDC20102% RH ultra-small, low-power digital relative humidity sensor

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7A24200-mA, 18-V, ultra-low-IQ, low-dropout (LDO) voltage regulator with enable

Data sheet: PDF | HTML
Analog switches & muxes

TS5A6231575-V, 2:1 (SPDT), 2-channel analog switch with undershoot & overshoot voltage protection

Data sheet: PDF
Analog switches & muxes

SN74LVC1G665-V, 1:1 (SPST), 1-channel analog switch

Data sheet: PDF | HTML

Start development

Software

GUI for evaluation module (EVM)

TIDA-010941-GUI — TIDA-010941 GUI

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-010941 Smart analog sensor interface for smoke detection with ambient light cancellation reference design
Download options

TIDA-010941-GUI TIDA-010941 GUI

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Latest version
Version: 1.0
Release date: Dec 16, 2023

TIDA-010941 GUI files for Python

SHA-256 checksum
Hardware development
Reference design
TIDA-010941 Smart analog sensor interface for smoke detection with ambient light cancellation reference design

Release Information

First release version

Technical documentation

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Type Title Date
* Design guide Smart Analog Sensor Interface for Smoke Detection With Ambient Light Cancellation Reference Design PDF | HTML Dec 12, 2023
* Test report TIDA-010941 UL217 Test Report Nov 16, 2023

Related design resources

Software development

SOFTWARE DEVELOPMENT KIT (SDK)
MSPM0-SDK MSPM0 software development kit (SDK)

Support & training

TI E2E™ forums with technical support from TI engineers

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