SLYS044A December   2021  – June 2022 TMAG5328

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  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 Output Type Tradeoffs
      2. 8.1.2 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
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  12. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  13. 12Mechanical, 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 setup the BOP is to connect a resistor to the "ADJ" pin. The device generates a fixed current that is injected in the external resistor. This will generate a voltage that represents the BOP value. The relationship between BOP and resistance is defined as BOP(mT) = RADJ(kΩ). Please note that the generated current on the "ADJ" pin is only present when the device is in active mode and it is turned OFF when 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 2 mT and 15 mT. This means RADJ must be set between 2 kΩ and 15 kΩ. Operating above and beyond those limits is not recommended and could result in either getting the wrong threshold set or locking up the device into a specific state without the possibility of exiting.

Figure 7-6 shows the relationship between BOP and RADJ.

GUID-20211115-SS0I-DDQL-H4DB-WB94L39DWJKZ-low.svgFigure 7-5 BOP vs RADJ