SLYS053B November   2023  – June 2024 TMAG3001

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
    8. 5.8  Magnetic Characteristics For A2
    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 Wake on Change
      5. 6.3.5 Device I2C Address
      6. 6.3.6 Magnetic Range Selection
      7. 6.3.7 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 Conversion Trigger
        2. 6.5.1.2 Bus Transactions
          1. 6.5.1.2.1 Three Channels I2C Write
          2. 6.5.1.2.2 General Call Write
          3. 6.5.1.2.3 Standard I2C Read
          4. 6.5.1.2.4 I2C Read Command for 16-bit Data
          5. 6.5.1.2.5 I2C Read Command for 8-Bit Data
          6. 6.5.1.2.6 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 Magnetic Sensor Gain Correction
        4. 6.5.2.4 Magnetic Sensor Offset Correction
        5. 6.5.2.5 Angle and Magnitude Data Definition
        6. 6.5.2.6 Angle Offset Correction
  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 Magnitude Limit Check
      6. 7.1.6 Angle Limit Check
      7. 7.1.7 Switch Mode
        1. 7.1.7.1 Unipolar Switch Mode
        2. 7.1.7.2 Omnipolar Switch Mode
        3. 7.1.7.3 Tamper Detection
        4. 7.1.7.4 Angle Switch
        5. 7.1.7.5 Magnitude Switch (Button Press Detection)
      8. 7.1.8 Error Calculation During Linear Measurement
      9. 7.1.9 Error Calculation During Angular Measurement
    2. 7.2 Typical Application
      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
    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 Register Map
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    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

6.4.3 Wake-Up and Sleep (W&S) Mode

In this mode the TMAG3001 can be configured to go to sleep and wake up at a certain interval, and measure sensor data based off the SLEEP_TIME register bits setting. The device can be set to generate an interrupt through the INT_CONFIG_1 register. After the conversion is complete and the interrupt condition is met, the TMAG3001 exits the W&S mode and go to the wait state for a fixed period of time. In this state, the last measured data is stored in the corresponding result registers. If the controller does not respond to the interrupt event in the wait state, then the device continues to be in (W&S) mode. If the interrupt condition is not met, the device stays in the W&S mode to wake up and measure data at the specified interval. A controller can wake up the TMAG3001 anytime during the W&S mode through I2C bus or INT pin. The time the device takes to go to standby mode from W&S mode is denoted by Tstart_sleep.

Reading from the TMAG3001 after an interrupt puts the device in standby mode. The TMAG3001 must be configured back to Wake-up and Sleep mode if an I2C read is executed after an interrupt.