SLVSGI9A october   2022  – july 2023 DRV8411A

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Device Comparison
  7. 6 Pin Configuration and Functions
    1.     Pin Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Diagrams
  9. 8 Typical Characteristics
  10. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 External Components
    4. 9.4 Feature Description
      1. 9.4.1 Bridge Control
      2. 9.4.2 Current Sense and Regulation
        1. 9.4.2.1 Current Sensing
        2. 9.4.2.2 Current Regulation
      3. 9.4.3 Protection Circuits
        1. 9.4.3.1 Overcurrent Protection (OCP)
        2. 9.4.3.2 Thermal Shutdown (TSD)
        3. 9.4.3.3 Undervoltage Lockout (UVLO)
    5. 9.5 Device Functional Modes
      1. 9.5.1 Active Mode
      2. 9.5.2 Low-Power Sleep Mode
      3. 9.5.3 Fault Mode
    6. 9.6 Pin Diagrams
      1. 9.6.1 Logic-Level Inputs
  11. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Typical Application
        1. 10.1.1.1 Stepper Motor Application
          1. 10.1.1.1.1 Design Requirements
          2. 10.1.1.1.2 Detailed Design Procedure
            1. 10.1.1.1.2.1 Stepper Motor Speed
            2. 10.1.1.1.2.2 Current Regulation
            3. 10.1.1.1.2.3 Stepping Modes
              1. 10.1.1.1.2.3.1 Full-Stepping Operation
              2. 10.1.1.1.2.3.2 Half-Stepping Operation with Fast Decay
              3. 10.1.1.1.2.3.3 Half-Stepping Operation with Slow Decay
          3. 10.1.1.1.3 Application Curves
        2. 10.1.1.2 Dual BDC Motor Application
          1. 10.1.1.2.1 Design Requirements
          2. 10.1.1.2.2 Detailed Design Procedure
            1. 10.1.1.2.2.1 Motor Voltage
            2. 10.1.1.2.2.2 Current Regulation
          3. 10.1.1.2.3 Application Curves
        3. 10.1.1.3 Thermal Considerations
          1. 10.1.1.3.1 Maximum Output Current
          2. 10.1.1.3.2 Power Dissipation
          3. 10.1.1.3.3 Thermal Performance
            1. 10.1.1.3.3.1 Steady-State Thermal Performance
            2. 10.1.1.3.3.2 Transient Thermal Performance
  12. 11Power Supply Recommendations
    1. 11.1 Bulk Capacitance
    2. 11.2 Power Supply and Logic Sequencing
  13. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  14. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 Community Resources
    4. 13.4 Trademarks
  15. 14Mechanical, Packaging, and Orderable Information
    1. 14.1 Tape and Reel Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • PWP|16
  • RTE|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information
10.1.1.1.2.3.2 Half-Stepping Operation with Fast Decay

In half-stepping mode, the full-bridge operates in one of the three modes (forward, reverse, or coast mode) to position the rotor half-way between two full-step positions. The coast state allows the current in the motor winding to decay quickly to 0 A. This mode is best-used when half-stepping at high speeds.

The controller applies the PWM input to the AIN1, AIN2, BIN1, and BIN2 pins as shown in Figure 10-3, and the driver operates in forward, reverse, and coast mode.

GUID-20220315-SS0I-BL3R-4JQZ-HZJ74R2RVXHG-low.svg Figure 10-3 Timing Diagram for Half-Stepping with Fast Decay