SLYS044B December   2021  – May 2024 TMAG5328

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 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 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

6.3.4 Sampling Rate

When the TMAG5328 device powers up, the device measures the first magnetic sample and sets the output within the tON time. For the TMAG5328A1D (duty cycled version), the output is latched and the device enters an ultra-low-power sleep state. After each tActive time has passed, the device measures a new sample and updates the output if necessary. If the magnetic field does not change between periods, the output also does not change. While in active mode, the part goes through different steps. The content of the OTP (One-Time-Programmable Memory) is loaded first, and this step takes about 35µs and consumes around 350µA. For the next 5µs, the current source starts up and settles. The part now consumes around 650µA in this step. Finally, the part conducts the Hall sensor conversion for about 25µs and consumes the peak current of around 2mA.

TMAG5328 TMAG5328A1D Timing Diagram Figure 6-4 TMAG5328A1D Timing Diagram

The TMAG5328A1Z (continuous time version) stays active after the tON time has passed (does not go to sleep), enabling a fast signal bandwidth of up to 20kHz (fBW).