SLVSFZ8A November   2021  – January 2026 DRV8231A

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 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. 6.7 Timing Diagrams
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 External Components
    4. 7.4 Feature Description
      1. 7.4.1 Bridge Control
      2. 7.4.2 Current Sense and Regulation (IPROPI)
        1. 7.4.2.1 Current Sensing
        2. 7.4.2.2 Current Regulation
      3. 7.4.3 Protection Circuits
        1. 7.4.3.1 Overcurrent Protection (OCP)
        2. 7.4.3.2 Thermal Shutdown (TSD)
        3. 7.4.3.3 VM Undervoltage Lockout (UVLO)
    5. 7.5 Device Functional Modes
      1. 7.5.1 Active Mode
      2. 7.5.2 Low-Power Sleep Mode
      3. 7.5.3 Fault Mode
    6. 7.6 Pin Diagrams
      1. 7.6.1 Logic-Level Inputs
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Brush DC Motor
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Motor Voltage
          2. 8.2.1.2.2 Motor Current
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Stall Detection
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Stall Detection Timing
          2. 8.2.2.2.2 Stall Threshold Selection
        3. 8.2.2.3 Application Curves
      3. 8.2.3 Relay Driving
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
          1. 8.2.3.2.1 Control Interface for Single-Coil Relays
          2. 8.2.3.2.2 Control Interface for Dual-Coil Relays
        3. 8.2.3.3 Application Curves
      4. 8.2.4 Multi-Sourcing with Standard Motor Driver Pinout
    3. 8.3 Current Capability and Thermal Performance
      1. 8.3.1 Power Dissipation and Output Current Capability
      2. 8.3.2 Thermal Performance
        1. 8.3.2.1 Steady-State Thermal Performance
        2. 8.3.2.2 Transient Thermal Performance
    4. 8.4 Power Supply Recommendations
      1. 8.4.1 Bulk Capacitance
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Community Resources
    4. 9.4 Trademarks
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.1.3 Application Curves

DRV8231A Motor startup at 100% duty cycle
Ch 1 (Yellow) = IN1 Signal Ch 2 (Magenta) = IN2 Signal
Ch 3 (Blue) = OUT1 Voltage Ch 7 (Red) = Motor Current
Figure 8-2 Motor startup at 100% duty cycle
DRV8231A Motor startup at 100% duty cycle with current regulation
Ch 1 (Yellow) = IN1 Signal Ch 3 (Blue) = OUT1 Voltage
Ch 6 (Purple) = IPROPI Signal Ch 7 (Red) = Motor Current
Figure 8-4 Motor startup at 100% duty cycle with current regulation
DRV8231A Motor startup at 50% duty cycle
Ch 1 (Yellow) = IN1 Signal Ch 2 (Magenta) = IN2 Signal
Ch 4 (Green) = OUT2 Voltage Ch 7 (Red) = Motor Current
Figure 8-3 Motor startup at 50% duty cycle
DRV8231A Motor startup at 50% duty cycle with current regulation
Ch 1 (Yellow) = IN1 Signal Ch 4 (Green) = OUT2 Voltage
Ch 6 (Purple) = IPROPI Signal Ch 7 (Red) = Motor Current
Figure 8-5 Motor startup at 50% duty cycle with current regulation