Low Power Wireless PIR Motion Detector Reference Design Enabling 10 Year Coin Cell Battery Life
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The TIDA-00489 TI Design uses nano-power operational amplifiers, comparators, and the SimpleLink™ ultra-low power sub-1GHz wireless microcontroller (MCU) platform to demonstrate a low power wireless motion detector implementation.  These technologies lead to an extremely long battery life, over 10 years with a standard CR2032 lithium ion coin cell battery, which could be used for applications including motion detection or lighting control through occupancy detection.  The PIR sensor has sensitivity of up to 30-feet with standby current of 1.65-µA.  The design guide includes techniques for system design, detailed test results, and information to get the design up and running quickly.

  • Use of Nano-Power Analog for Ultra-Low Power Design Resulting in 10 Year Battery Life from single CR2032 Coin Cell
  • Low Standby Current of 1.65uA (PIR sensor remains active in Standby)
  • Ultra-Low Active State Current Due to Low Active Processor and Radio Transmit Currents (1.12mA for 104.1ms)
  • Interrupt Driven Sub-1GHz Wireless Communication of Motion for Increased Power Savings
  • Motion Sensitivity up to 30ft

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC1310  SimpleLink™ 32-bit Arm Cortex-M3 Sub-1 GHz wireless MCU with 128kB Flash  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules
LPV802  Dual Channel 320nA Nanopower Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV3691  Nanopower, small-size, single comparator  Amplifiers  Sample & Buy Not Available

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Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC1310 Download Download
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LPV802 Download
TLV3691 Download
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Application note (1)
Title Type Size (KB) Date
PDF 581 10 May 2021
User guide (1)
Title Type Size (KB) Date
PDF 3439 25 Oct 2016
Design files (6)
Title Type Size (KB) Date
PDF 639 03 Nov 2016
PDF 1982 03 Nov 2016
ZIP 658 03 Nov 2016
PDF 54 03 Nov 2016
PDF 255 03 Nov 2016
ZIP 1137 03 Nov 2016
More literature (2)
Title Type Size (KB) Date
Multiple Files   15 Dec 2020
ZIP 4336 14 Oct 2015
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