SLOSE58B May   2020  – May 2022 DRV8932

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Bridge Control
      2. 7.3.2 Current Regulation
      3. 7.3.3 Decay Modes
        1. 7.3.3.1 Blanking time
      4. 7.3.4 Charge Pump
      5. 7.3.5 Linear Voltage Regulators
      6. 7.3.6 Logic and Quad-Level Pin Diagrams
        1. 7.3.6.1 nFAULT Pin
      7. 7.3.7 Protection Circuits
        1. 7.3.7.1 VM Undervoltage Lockout (UVLO)
        2. 7.3.7.2 VCP Undervoltage Lockout (CPUV)
        3. 7.3.7.3 Overcurrent Protection (OCP)
        4. 7.3.7.4 Thermal Shutdown (OTSD)
        5. 7.3.7.5 Fault Condition Summary
    4. 7.4 Device Functional Modes
      1. 7.4.1 Sleep Mode (nSLEEP = 0)
      2. 7.4.2 Operating Mode (nSLEEP = 1)
      3. 7.4.3 nSLEEP Reset Pulse
      4. 7.4.4 Functional Modes Summary
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Current Regulation
        2. 8.2.2.2 Power Dissipation and Thermal Calculation
        3. 8.2.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Bulk Capacitance
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Layout Example
  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
  12. 12Mechanical, Packaging, and Orderable Information

7.3.7.3 Overcurrent Protection (OCP)

An analog current-limit circuit on each FET limits the current through the FET by removing the gate drive. If this current limit persists for longer than the tOCP time, the half-bridge in which OCP is detected is disabled and the nFAULT pin is driven low. The charge pump remains active during this condition. Once the OCP condition is removed, normal operation resumes after applying an nSLEEP reset pulse or a power cycling.