SLOA194A May   2014  – January 2022 DRV2603 , DRV2604 , DRV2604L , DRV2605 , DRV2605L , DRV2605L-Q1 , DRV2624 , DRV2625 , DRV2667

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Eccentric Rotating Mass
    2. 1.2 Linear Resonant Actuator
    3. 1.3 Piezo Actuator
  3. 2How to Measure Energy
    1. 2.1 Current Consumption
    2. 2.2 Energy Consumption
    3. 2.3 Current Versus Acceleration
  4. 3Energy Consumption Comparisons for ERM, LRA and Piezo
  5. 4Energy Consumption Advantage of DRV260x and DRV262x Drivers
  6. 5Appendix A Energy Consumption of Actuators
  7. 6Appendix B. Test Setup Picture
  8. 7Appendix C. Energy Consumption Calculation for Smartphone Scenarios
  9. 8Revision History

5 Appendix A Energy Consumption of Actuators

Table 5-1 shows energy consumption of more actuators of different manufactures, including AAC, SEMCO, Copal, AWA, and Sanyo.

Table 5-1 Actuator Energy Consumption Data
Actuators Duration (ms) Acceleration (g) Full-Scale Click (µAh per click)
LRA – AAC ELV1411 50 0.941 0.680
LRA – Partron (Rectangle) 50 0.466 0.531
LRA – Partron (Round) 50 0.557 0.458
LRA – LG Innotek 50 1.32 0.412
LRA – AAC ELV1036A 50 0.914 0.541
LRA – SEMCO 1030 50 0.846 0.521
LRA – SEMCO 1036 50 0.795 0.414
LRA – Copal AA7 45 0.631 0.633
ERM – Sanyo NRS2574I 45 1.103 1.819
ERM – Sanyo BMR3565 45 0.541 1.284
ERM – AWA GS-2717 45 0.580 0.718
ERM – Sanyo BNK3266 45 0.550 1.342
Piezo – SEMCO 16.5 0.904 0.782
Piezo – AAC 16.5 0.543 0.680