SLYS035B September   2022  – July 2025 TMAG5173-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  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  Temperature Sensor
    7. 5.7  Magnetic Characteristics For A1, B1, C1, D1
    8. 5.8  Magnetic Characteristics For A2, B2, C2, D2
    9. 5.9  Magnetic Temp Compensation Characteristics
    10. 5.10 I2C Interface Timing
    11. 5.11 Power up Timing
    12. 5.12 Timing Diagram
    13. 5.13 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 Sensor Location
      3. 6.3.3 Interrupt Function
      4. 6.3.4 Device I2C Address
      5. 6.3.5 Magnetic Range Selection
      6. 6.3.6 Update Rate Settings
    4. 6.4 Device Functional Modes
      1. 6.4.1 Standby (Trigger) Mode
      2. 6.4.2 Sleep Mode
      3. 6.4.3 Wake-up and Sleep (W&S) Mode
      4. 6.4.4 Continuous Measure Mode
    5. 6.5 Programming
      1. 6.5.1 I2C Interface
        1. 6.5.1.1 SCL
        2. 6.5.1.2 SDA
        3. 6.5.1.3 I2C Read/Write
          1. 6.5.1.3.1 Standard I2C Write
          2. 6.5.1.3.2 General Call Write
          3. 6.5.1.3.3 Standard 3-Byte I2C Read
          4. 6.5.1.3.4 1-Byte I2C Read Command for 16-Bit Data
          5. 6.5.1.3.5 1-Byte I2C Read Command for 8-Bit Data
          6. 6.5.1.3.6 I2C Read CRC
      2. 6.5.2 Data Definition
        1. 6.5.2.1 Magnetic Sensor Data
        2. 6.5.2.2 Temperature Sensor Data
        3. 6.5.2.3 Angle and Magnitude Data Definition
        4. 6.5.2.4 Magnetic Sensor Offset Correction
    6. 6.6 TMAG5173-Q1 Registers
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Select the Sensitivity Option
      2. 7.1.2 Temperature Compensation for Magnets
      3. 7.1.3 Sensor Conversion
        1. 7.1.3.1 Continuous Conversion
        2. 7.1.3.2 Trigger Conversion
        3. 7.1.3.3 Pseudo-Simultaneous Sampling
      4. 7.1.4 Magnetic Limit Check
      5. 7.1.5 Magnetic Threshold Band Cross Detection
      6. 7.1.6 Error Calculation During Linear Measurement
      7. 7.1.7 Error Calculation During Angular Measurement
    2. 7.2 Typical Applications
      1. 7.2.1 Angle Measurement
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 Gain Adjustment for Angle Measurement
        3. 7.2.1.3 Application Curves
      2. 7.2.2 I2C Address Expansion
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
    3. 7.3 Best Design Practices
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.5.2.1 Magnetic Sensor Data

The X, Y, and Z magnetic sensor data are stored in x_MSB_RESULT and x_LSB_RESULT registers. Figure 6-15 shows that each sensor output stored in a 16-bit 2's complement format in two 8-bit registers. The data can be retrieved as 16-bit format combining both MSB and LSB registers, or as 8-bit format through the MSB register. When Conv_AVG = 0h, the ADC output loads the 12 MSB bits of the 16-bit result along with four LSBs as zeros. When Conv_AVG ≠ 0h, all 16 bits are used to store the results.

TMAG5173-Q1 Magnetic Sensor Data Definition Figure 6-15 Magnetic Sensor Data Definition

The LSB size for each magnetic range is:

  • 40mT: 844 LSB/mT
  • 80mT: 425 LSB/mT
  • 133mT: 263 LSB/mT
  • 266mT: 132 LSB/mT
    Table 6-6 16-bit X, Y, Z Magnetic Sensor Data Format. Three decimal places are shown.
    Magnetic Field (mT) x_CH_RESULT
    Range = 40 mT Range = 80 mT Range = 133 mT Range = 266 mT BINARY HEX
    -38.824 -77.101 -124.593 -248.242 1000 0000 0000 0000 8000h
    -19.412 -38.551 -62.297 -124.121 1100 0000 0000 0000 C000h
    -0.001 -0.002 -0.004 -0.008 1111 1111 1111 1111 FFFFh
    0 0 0 0 0000 0000 0000 0000 0000h
    0.001 0.002 0.004 0.008 0000 0000 0000 0001 0001h
    19.412 38.551 62.297 124.121 0100 0000 0000 0000 4000h
    38.823 77.099 124.589 248.235 0111 1111 1111 1111 7FFFh