SBAA510 October   2021 DRV5032 , TMAG5170 , TMAG5231 , TMAG5273

 

  1.   Trademarks
  2. 1Introduction
  3. 2Reed Switch Overview
  4. 3Hall Effect Sensor Overview
  5. 4Performance Comparison
  6. 5DRV5032 Test Setup and Results
    1. 5.1 DRV5032 Test Setup
    2. 5.2 Understanding the Results
    3. 5.3 DRV5032 Test Results
    4. 5.4 Front Approach Results
    5. 5.5 Side Approach
    6. 5.6 Tamper Susceptibility Testing Setup
    7. 5.7 Tamper Susceptibility Test Results
  7. 6Reed Switch Test Setup and Results
    1. 6.1 Reed Switch Test Setup
    2. 6.2 Reed Switch Test Results
    3. 6.3 Front Approach Results
    4. 6.4 Side Approach Results
    5. 6.5 Tamper Susceptibility Testing Setup
    6. 6.6 Reed Switch Tamper Susceptibility Test Results
  8. 7TMAG5170 Test Setup and Results
    1. 7.1 TMAG5170 Test Setup
    2. 7.2 TMAG5170 Test Results
    3. 7.3 TMAG5170 Tamper Susceptibility Testing Setup
    4. 7.4 TMAG5170 Tamper Susceptibility Test Results
  9. 8Summary

6.4 Side Approach Results

As with the DRV5032 the side approach is also done with the Reed switch to see the effect on the detection range and any blind spots. Figure 6-4 and Figure 6-5 shows these resulting magnetic detection field points for the Reed switch in both top-down approach as well as side approach. The detection field ranges from approximately 0.4 inches all the way to 1.4 inches with somewhat of a sinusoidal shape of detection along the device.

GUID-20210810-SS0I-RJ9Q-LMRJ-LVVH9ZQLMXGX-low.png Figure 6-4 Reed Switch Side Approach Magnetic Detection Field Results: Top-down View
GUID-20210810-SS0I-6B8V-QDFF-8TL4RQ8QTDM8-low.png Figure 6-5 Reed Switch Side Approach Magnetic Detection Field Results: Side View

The height of detection is similar to that of the DRV5032 with a maximum Z height of approximately 0.85 inches. Figure 6-6 shows the results of the testing from an angle to show the 3 axes of data in a more comprehensible way.

GUID-20210810-SS0I-CBQL-HQ0X-QCGWGSFDFX7M-low.png Figure 6-6 Reed Switch Side Approach Magnetic Detection Field Results: Off-Axis View