JAJSJK9B December   2021  – May 2024 TMAG5328

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Magnetic Characteristics
    7. 5.7 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Magnetic Flux Direction
      2. 6.3.2 Magnetic Response
      3. 6.3.3 Output Type
      4. 6.3.4 Sampling Rate
      5. 6.3.5 Adjustable Threshold
        1. 6.3.5.1 Adjustable Resistor
        2. 6.3.5.2 Adjustable Voltage
      6. 6.3.6 Hall Element Location
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Valid TMAG5328 Configurations
    2. 7.2 Typical Applications
      1. 7.2.1 Refrigerator Door Open/Close Detection
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Nomenclature
    2. 8.2 ドキュメントの更新通知を受け取る方法
    3. 8.3 サポート・リソース
    4. 8.4 Trademarks
    5. 8.5 静電気放電に関する注意事項
    6. 8.6 用語集
  10. 9 Revision History
  11. 10メカニカル、パッケージ、および注文情報

6.3.5.1 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). 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. This means RADJ must be set between 2kΩ and 15kΩ. 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 6-5 shows the relationship between BOP and RADJ.

TMAG5328 BOP vs RADJFigure 6-5 BOP vs RADJ