SLVSHA4 June   2024 DRV8421

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 Comm
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 PWM Motor Drivers
      2. 7.3.2 Truth Tables
      3. 7.3.3 Parallel Operation
      4. 7.3.4 Protection Circuits
        1. 7.3.4.1 OCP
        2. 7.3.4.2 TSD
        3. 7.3.4.3 UVLO
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Bulk Capacitance Sizing
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Community Resources
    2. 9.2 Trademarks
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

7.3.1 PWM Motor Drivers

DRV8421 contains two identical H-bridge motor drivers with current-control PWM circuitry. Figure 7-3 shows a block diagram of the circuitry for DRV8421.

DRV8421 PWM Motor Driver Circuitry Figure 7-3 PWM Motor Driver Circuitry