SWRA625B August   2018  – February 2020 CC1352P , CC1352R , CC2652P , CC2652R , CC2652R7 , CC2652RSIP

 

  1.   Z-Stack End Device Power Consumption Measurement With the SimpleLink Wireless MCU Family
    1.     Trademarks
    2. 1 Introduction
    3. 2 Abbreviations and Acronyms
    4. 3 System Overview
      1. 3.1 Hardware:LAUNCHXL-CC1352P-2, LAUNCHXL-CC26X2R1
      2. 3.2 Software: Z-Stack
        1. 3.2.1 Z-Stack Development Environment
    5. 4 Measurement Setup
      1. 4.1 Instrumentation
      2. 4.2 Software Setup
        1. 4.2.1 Programming
        2. 4.2.2 ZC Node
        3. 4.2.3 ZED Node
        4. 4.2.4 GPD Node
        5. 4.2.5 Commissioning
    6. 5 Measurements
      1. 5.1 Measurements for Regular ZED
      2. 5.2 Measurements for Green Power Device
      3. 5.3 Measurements Using the EnergyTrace Tool
    7. 6 Application to a Practical Use Case
      1. 6.1 Estimation for Usage Scenario
        1. 6.1.1 Usage Scenario 1
      2. 6.2 Usage Scenario 2
    8. 7 Batteryless Green Power Device
    9. 8 Summary
    10. 9 References
  2.   Revision History

6.1 Estimation for Usage Scenario

In this section, you can estimate per-day current consumption amounts based on daily usage scenarios and calculate the battery life for each scenario. It is assumed that 1 CR2032 coin cell battery whose capacity is 235 mAh is used, and that the TX power level used is the default 5 dBm.

For ease of calculation, defined here is the constant CCSLEEP, per-day charge consumption in sleep mode. Since the switch is supposed to sleep most of time and the time period where it is awake is relatively negligible, assume the switch is consuming sleep mode current all the time. CCSLEEP is calculated as shown in Equation 1.

Equation 1. C C S L E E P   =  0 .0008   m A   *  1000   m s s *  60   s m i n *  60   m i n h r *  24   h r d a y C C S L E E P   =  69120   m A d a y

Consider the following two example usage scenarios to present how to estimate per-day charge consumption in various actual usages.