SBAS644B April   2018  – June 2020 DRV5056

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical 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 Magnetic Flux Direction
      2. 7.3.2 Magnetic Response
      3. 7.3.3 Sensitivity Linearity
      4. 7.3.4 Ratiometric Architecture
      5. 7.3.5 Operating VCC Ranges
      6. 7.3.6 Sensitivity Temperature Compensation For Magnets
      7. 7.3.7 Power-On Time
      8. 7.3.8 Hall Element Location
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Selecting the Sensitivity Option
      2. 8.1.2 Temperature Compensation for Magnets
      3. 8.1.3 Adding a Low-Pass Filter
      4. 8.1.4 Designing for Wire Break Detection
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 What to Do and What Not to Do
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  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

7.3.2 Magnetic Response

The DRV5056 outputs an analog voltage according to Equation 1 when in the presence of a magnetic field:

Equation 1. DRV5056 Vout.gif

where

  • VQ is typically 600 mV
  • B is the applied magnetic flux density
  • Sensitivity(25°C) depends on the device option and VCC
  • STC is typically 0.12%/°C for device options DRV5056A1 - DRV5056A4 and is 0%/°C for DRV5056Z1 - DRV5056Z4 options
  • TA is the ambient temperature
  • VOUT is within the VL range

As an example, consider the DRV5056A3 with VCC = 3.3 V, a temperature of 50°C, and 67 mT applied.
Excluding tolerances, VOUT = 600 mV + 67 mT × (30 mV/mT × [1 + 0.0012/°C × (50°C – 25°C)]) = 2.67 V.

The DRV5056 only responds to the flux density of a magnetic south pole.