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TIDA-00376

Piezo Speaker Strobe Notification Reference Design

Design files

TIDA-00376

Design files

Overview

TIDA-00376 uses our industrial piezo driver, flash LED driver and the ultra-low-power FRAM microcontroller (MCU) to demonstrate the implementation of both audible and visual notification subsystems primarily intended for fire alert end-equipment systems. This reference design demonstrates multiple alert-tone frequency outputs through a single piezo transducer, as well as a low-input current and high light-output LED strobe.

Features
  • Meets NFPA 72 code requirements for audible and visual notification devices
  • 86.5 dBA @ 3 m (520-Hz square wave)
  • 80.5 dBA @ 3 m (2.84-kHz sine wave)
  • 77.5 dBA @ 3 m (pre-recorded speech)
  • 300 candela @ 3 m (flash mode)
  • 1.44-W power consumption (audible and visual notification)
Industrial
Personal electronics
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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.

download Schematic — TIDA-00376
TIDREY0.PDF (741 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDA-00376
TIDREY1.PDF (107 K)

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

download Assembly drawing — TIDA-00376
TIDREY2.PDF (282 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — TIDA-00376
TIDREY4.ZIP (1264 K)

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

download Gerber file — TIDA-00376
TIDCAC3.ZIP (562 K)

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

download PCB layout — TIDA-00376
TIDREY3.PDF (2382 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Piezo drivers

DRV2700 — Industrial piezo driver with integrated 105-V boost converter in QFN package

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

LMR14030 — SIMPLE SWITCHER® 40-V, 3.5-A, 2.2-MHz step-down converter with 40-uA IQ

Data sheet: PDF | HTML
ESD protection diodes

TPD1E10B06 — 12-pF, ±5.5V, ±30-kV ESD protection diode in 0402 and SOD-523 package

Data sheet: PDF | HTML
ESD protection diodes

TPD6F003 — 6 channel 5.5-V, ±12kV ESD protection & EMI Filter with 200-MHz -3-dB

Data sheet: PDF | HTML
General-purpose op amps

LMV344 — Quad, 5.5-V, 1-MHz, high output current (75-mA) operational amplifier

Data sheet: PDF | HTML
Illumination LED drivers

LM3550 — A flash LED driver with Automatic Vf and ESR Detection for Mobile Camera Systems

Data sheet: PDF | HTML
MOSFETs

CSD15571Q2 — 20-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 19.2 mOhm

Data sheet: PDF
MSP430 microcontrollers

MSP430FR5969 — 16 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer

Data sheet: PDF | HTML

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Software

Technical documentation

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Type Title Date
* User guide Piezo Speaker Strobe Notification Reference Design Guide (Rev. A) Sep. 01, 2015

Related design resources

Reference designs

REFERENCE DESIGN
PMP9762 — Efficient, Step-down, High-power LED Driver with Strobe and Synchronization for Fire Alarms

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