July 2012 doc.: IEEE 802.15-12-0383-00-004q Project: IEEE P802.15

July 2012 doc.: IEEE 802.15-12-0383-00-004q Project: IEEE P802.15

July 2012 doc.: IEEE 802.15-12-0383-00-004q Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: A Limitation of Coin Cell Batteries Date Submitted: July 2012 Source: : Shahriar Emami, Samsung E-Mail: [[email protected]] Re: Abstract: Describes limitation of coin cell batteries Purpose: ULP related information Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Submissio n Slide 1 Shahriar Emami, Samsung

July 2012 doc.: IEEE 802.15-12-0383-00-004q A Limitation of Coin Cell Batteries July 2012 Submissio n Slide 2 Shahriar Emami, Samsung July 2012 doc.: IEEE 802.15-12-0383-00-004q Smaller Form Factor Sensor nodes can have a smaller form factor if they use coin cell batteries Submissio n Slide 3

Shahriar Emami, Samsung July 2012 doc.: IEEE 802.15-12-0383-00-004q Coin cell Batteries CR1025, CR1216, CR1220, CR1225, CR1616,CR1620, CR1632, CR2012, CR2016, CR2025, CR2032, CR2320, CR2325, CR2330, CR2354, CR2430, CR2450, CR2477, CR3032, CR11108 - Used in many applications - Available from many vendors - Relatively inexpensive Submissio n Slide 4 Shahriar Emami, Samsung July 2012 doc.: IEEE 802.15-12-0383-00-004q

Chemistry Silver Oxide Lithium Manganese dioxide (LiMnO2) Lithium/carbon monofluoride Alkaline Submissio n Slide 5 Shahriar Emami, Samsung July 2012 doc.: IEEE 802.15-12-0383-00-004q Coin Cell Battery Specs IEC Name

CR2025 CR2032 CR1632 CR2330 CR2430 CR3032 Submissio n Voltage (v) 3 3 3 3 3 3 Capacity (mAh) 160 225 140 265 270

500 Dimensions (mm) Weight (g) 20x2.5 20x3.2 16x3.2 23x3.0 24.5x3.0 30x3.2 Slide 6 2.5 3 1.6 4 4.2 8 Shahriar Emami, Samsung July 2012 doc.: IEEE 802.15-12-0383-00-004q

Max Operating Current (Pulse) CR1025 CR1212, CR1216, CR1220, CR1225 CR1616, CR1620, CR1625 CR1632, CR2016 CR2450, CR 2477 Submissio n Slide 7 5mA 5mA 8 mA 10 mA 15 mA Shahriar Emami, Samsung

July 2012 doc.: IEEE 802.15-12-0383-00-004q Commercial Chipsets Submissio n Slide 8 Shahriar Emami, Samsung July 2012 doc.: IEEE 802.15-12-0383-00-004q Summary To support a small form factor for WSN, one can utilize coin cell batteries Coin cell batteries have a max operating current The max operating current of most coin cells is below tx/rx of most 802.15.4 chipsets Only a couple of the existing 802.15.4 chipsets can utilize coin cell batteries Most existing 802.15.4 chipsets can not utilize coin cell

batteries Submissio n Slide 9 Shahriar Emami, Samsung July 2012 doc.: IEEE 802.15-12-0383-00-004q References [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] N. M. Pletcher, S. Gambini and J. Rabaey, A 52 micro-W Wake-Up Receiver With -72 dBm Sensitivity Using an Uncertain-IF

Architecture, IEEE Journal of Solid-State Circuits, vol. 44, no. 1, Jan. 2009. F. X. Moncunill-Geniz, P. Pal-Schnwlder, and O. Mas-Casals, A generic approach to the theory of super regenerative reception,IEEE Trans. Circuits Syst. I, vol. 52, no. 1, pp. 5470, Jan. 2005. >. . . . . . . N. Stanic, A. Balankutty, P. R. Kinget and Y. Tsivids,A 2.4-GHz ISM-band sliding-IF receiver with a 0.5-V supply, IEEE Journal of solid-state circuits, vol. 43, no. 5, May 2008. Submissio n Slide 10 Shahriar Emami, Samsung

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