SLYS044C December   2021  – April 2025 TMAG5328

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Magnetic Characteristics
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Magnetic Flux Direction
      2. 7.3.2 Magnetic Response
      3. 7.3.3 Output Type
      4. 7.3.4 Sampling Rate
      5. 7.3.5 Adjustable Threshold
        1. 7.3.5.1 Adjustable Resistor
        2. 7.3.5.2 Adjustable Voltage
      6. 7.3.6 Hall Element Location
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Valid TMAG5328 Configurations
    2. 8.2 Typical Applications
      1. 8.2.1 Refrigerator Door Open/Close Detection
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Nomenclature
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.3.5.1 Adjustable Resistor

One way to set up the BOP is to connect a resistor to the ADJ pin. The device generates a fixed current that is injected in the external resistor, and this generates a voltage that represents the BOP value. The relationship between BOP and resistance is defined as BOP(mT) = RADJ(kΩ) for the A1D and A1Z device versions, or BOP(mT) = RADJ(kΩ) × 4 for the D1E version. Note that the generated current on the ADJ pin is only present when the device is in active mode and turns OFF when the device is in sleep mode. As a result, the voltage on the ADJ pin is only present when the device is in active mode, which is a small duration compared to the time the device is in sleep mode.

The device BOP must be set to any value between 2mT and 15mT (A1D, A1Z versions) or 8mT to 60mT (D1E version). RADJ must be set between 2kΩ and 15kΩ to operate in this range. Operating above and beyond those limits is not recommended and can result in either getting the wrong threshold set or locking up the device into a specific state without the possibility of exiting.

Figure 7-5 and Figure 7-6 illustrate the relationship between BOP and RADJ.

TMAG5328 BOP vs RADJ (A1D, A1Z versions)Figure 7-5 BOP vs RADJ (A1D, A1Z versions)
TMAG5328 BOP vs RADJ (D1E version)Figure 7-6 BOP vs RADJ (D1E version)