SBAS913 December   2018 DRV5021

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Schematic
      2.      Magnetic Response
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Field Direction Definition
      2. 7.3.2 Device Output
      3. 7.3.3 Power-On Time
      4. 7.3.4 Hall Element Location
      5. 7.3.5 Propagation Delay
      6. 7.3.6 Output Stage
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Proximity Sensing Circuit
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Configuration Example
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Alternative Two-Wire Application
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.3.3 Power-On Time

After applying VCC to the DRV5021, ton must elapse before the OUT pin is valid. In case 1 (Figure 13) and case 2 (Figure 14), the output is defined assuming that magnetic field BAPPLIED > BOP, and BAPPLIED < BRP, respectively.

DRV5021 drv5021_timing_case1.gifFigure 13. Case 1: Power On When B > BOP
DRV5021 drv5021_timing_case2.gifFigure 14. Case 2: Power On When B < BRP

If the device is powered on with BRP < BAPPLIED < BOP, then the device output remains in indeterminate state until the magnetic field changes. After the change in magnetic field results in a condition that meets either BOP < BAPPLIED or BRP > BAPPLIED, the output turns to valid state after td time elapses. Case 3 (Figure 15) and case 4 (Figure 16) show examples of this behavior.

DRV5021 drv5021_timing_case3.gifFigure 15. Case 3: Power On When BRP < B < BOP, Followed by B > BOP
DRV5021 drv5021_timing_case4.gifFigure 16. Case 4: Power On When BRP < B < BOP, Followed by B < BRP