SLYA068A May   2023  – December 2023 TMAG3001 , TMAG5253

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Low Power Modes
    1. 2.1 Power Cycling
      1. 2.1.1 Self Duty Cycled Low Power Operation
    2. 2.2 Conversion on Demand
    3. 2.3 Wake on Detection
    4. 2.4 Wake on Change
  6. 3Low Power Modes with Multiple Sensors
  7. 4Low Power Mode Design Examples
    1. 4.1 Design Example Scenario 2
    2. 4.2 Design Example Scenario 2
  8. 5Summary
  9. 6References
  10. 7Revision History

2 Low Power Modes

Typically, linear Hall sensors are used in triggers or thumb-sticks to detect precise position. These sensors have either an analog output or a digital output interface such as SPI or I2C. To be power efficient, the sensors with analog output can be power cycled by the microcontroller and the sensors with digital output can be placed in trigger mode or self duty cycled modes. In the following sections, we show these implementations in detail.