SBAU400 November   2023 TMAG5253

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Overview
    1. 1.1 Kit Contents
    2. 1.2 Related Documentation From Texas Instruments
  5. 2Hardware
    1. 2.1 Features
  6. 3Operation
    1. 3.1 Quick Start Setup
    2. 3.2 EVM Operation
  7. 4Schematics, PCB Layout, and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Component Functions
    3. 4.3 PCB Layout
    4. 4.4 Bill of Materials

4.2 Component Functions

The descriptions of each circuit component found on the EVM are listed below:

  • U1 is the TMAG5253 low-power, linear Hall effect sensor that this EVM is showcasing.
  • U2 is the MSP430FR2311, which is included to modulate the LED light according to the TMAG5253 output potential.
  • C1, C2, and C3 serve as decoupling capacitors that attenuate noise on the supply traces.
  • D1 is the RGB LED that shines blue for south fields (flux pointing out of the TMAG5253 top) and red for north fields (flux pointing into the TMAG5253 top).
  • R1 is the 0-Ω shunt that can be replaced by the user with an alternate shunt for current measurements.
  • R2 is the 0-Ω shunt that can be removed so that a duty-cycled signal can be provided to the TMAG5253 externally or internally from the MSP430FR231.
  • R4 is the 0-Ω shunt for the GPIO P2.3 to GND. R2 should be removed before adding this resistor and powering on the device. When GPIO is shorted to ground, the MSP430FR2311 duty cycles the TMAG5253 enable pin.