SLOS754C June   2012  – August 2016 DRV2603

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 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Test Setup for Graphs
    2. 7.2 Alternate Test Setup
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Supply Voltage Rejection for Constant Vibration Strength
      2. 8.3.2 Low-Voltage Control Logic for Constant Vibration Strength
      3. 8.3.3 Thermal Protection
      4. 8.3.4 Overcurrent Protection
      5. 8.3.5 Linear Resonance Actuators (LRA)
      6. 8.3.6 Auto Resonance Engine for LRA
      7. 8.3.7 Eccentric Rotating Mass Motors (ERM)
      8. 8.3.8 Edge Rate Control
    4. 8.4 Device Functional Modes
      1. 8.4.1 LRA Mode
      2. 8.4.2 ERM Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Actuator Selection
        2. 9.2.2.2 Power Supply Selection
        3. 9.2.2.3 Sending a Haptic Effect
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Decoupling Capacitor
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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メカニカル・データ（パッケージ｜ピン）
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7 Parameter Measurement Information

7.1 Test Setup for Graphs

With no output filter, the output waveform from the DRV2603 looks similar to Figure 1. The output signal contains both a high frequency PWM component and a fundamental drive component which causes motion in the actuator. To measure or observe the fundamental drive component, a low-pass filter must be used to eliminate the PWM component. The digital filter function on a digital oscilloscope was utilized in the rest of the Typical Characteristic figures. A 1st order, low-pass filter corner between 1 kHz and 3.5 kHz is recommended.

DRV2603 test_setup_graphs_los754.gif Figure 7. Test Setup for Graphs

7.2 Alternate Test Setup

If a digital oscilloscope with digital filtering is not available, a 1st order, low-pass, RC filter network can be used instead. Care must be taken not to use a filter impedance that is too low. This can interfere with the back-EMF behavior of the actuator and corrupt the operation of the auto resonance function. A recommended circuit is shown in Figure 8.

DRV2603 alt_test_setup_graphs_los754.gif Figure 8. Alternate Test Setup