SLVSDD5 August   2017 DRV5012

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and 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 Output Driver
      4. 7.3.4 Sampling Rate
      5. 7.3.5 SEL Pin
      6. 7.3.6 Hall Element Location
    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 BLDC Motor Sensors Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Incremental Rotary Encoding Application
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
    3. 8.3 Do's and Don'ts
  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 Device Support
      1. 11.1.1 Development Support
    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

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DMR|4
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Industry-Leading Low-Power Consumption
  • Pin-Selectable Sampling Rate:
    • SEL = Low: 20 Hz Using 1.3 µA (1.8 V)
    • SEL = High: 2.5 kHz Using 142 µA (1.8 V)
  • 1.65- to 5.5-V Operating VCC Range
  • High Magnetic Sensitivity: ±2 mT (Typical)
  • Robust Hysteresis: 4 mT (Typical)
  • Push-Pull CMOS Output
  • Small and Thin X2SON Package
  • –40°C to +85°C Operating Temperature Range

2 Applications

  • Brushless DC Motor Sensors
  • Incremental Rotary Encoding:
    • Motor Speed
    • Mechanical Travel
    • Fluid Measurement
    • Knob Turning
    • Wheel Speed
  • Portable Medical Devices
  • E-Locks, E-Bikes, Motorized Blinds
  • Flow Meters
  • Contactless Activation

3 Description

The DRV5012 device is an ultra-low-power digital-latch Hall effect sensor with a pin-selectable sampling rate.

When a south magnetic pole is near the top of the package and the BOP threshold is exceeded, the device drives a low voltage. The output stays low until a north pole is applied and the BRP threshold is crossed, which causes the output to drive a high voltage. Alternating north and south poles are required to toggle the output, and integrated hysteresis separates BOP and BRP to provide robust switching.

Using an internal oscillator, the DRV5012 device samples the magnetic field and updates the output at a rate of 20 Hz or 2.5 kHz, depending on the SEL pin. This dual-bandwidth feature can allow systems to monitor changes in movement while using minimal power.

The device operates from a VCC range of 1.65 V to 5.5 V, and is packaged in a small X2SON.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DRV5012 X2SON (4) 1.10 mm × 1.40 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.






Typical Schematic

DRV5012 sch.gif





Current Consumption in 20-Hz Mode

DRV5012 D016.gif