SLVS913E January   2009  – January 2016 DRV8823

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 Timing Requirements
    7. 6.7 Dissipation Ratings
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 PWM Motor Drivers
    4. 7.4 Device Functional Modes
      1. 7.4.1 Bridge Control
      2. 7.4.2 Current Regulation
      3. 7.4.3 Blanking Time
      4. 7.4.4 Decay Mode
      5. 7.4.5 Protection Circuits
        1. 7.4.5.1 OCP
        2. 7.4.5.2 Thermal Shutdown (TSD)
        3. 7.4.5.3 Undervoltage Lockout (UVLO)
        4. 7.4.5.4 Shoot-Through Current Prevention
      6. 7.4.6 Serial Data Transmission
      7. 7.4.7 Data Format
  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 Motor Voltage
      3. 8.2.3 Drive Current
      4. 8.2.4 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
      1. 10.3.1 Power Dissipation
      2. 10.3.2 Heatsinking
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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订购信息

1 Features

  • PWM Motor Driver With Four H-Bridges
    • Drives Two Stepper Motors, One Stepper and Two DC Motors, or Four DC Motors
    • Up to 1.5-A Current Per Winding
    • Low On-Resistance
    • Programmable Maximum Winding Current
    • Three-Bit Winding Current Control Allows up to Eight Current Levels
    • Selectable Slow or Mixed Decay Modes
  • 8- to 32-V Operating Supply Voltage Range
  • Internal Charge Pump for Gate Drive
  • Built-in 3.3-V Reference
  • Serial Digital Control Interface
  • Fully Protected Against Undervoltage, Overtemperature, and Overcurrent Events
  • Thermally-Enhanced Surface Mount Package

2 Applications

  • Printers
  • Scanners
  • Office Automation Machines
  • Gaming Machines
  • Factory Automation
  • Robotics

3 Description

The DRV8823 provides an integrated motor driver solution for printers and other office automation equipment applications.

The motor driver circuit includes four H-bridge drivers. Each of the motor driver blocks employ N-channel power MOSFETs configured as an H-bridge to drive the motor windings.

A simple serial interface allows control of all functions of the motor driver with only a few digital signals. The devices also provides a low-power sleep function.

The motor drivers provide PWM current control capability. The current is programmable, based on an externally supplied reference voltage and an external current sense resistor. In addition, eight current levels (set through the serial interface) allow microstepping with bipolar stepper motors.

Internal shutdown functions are provided for overcurrent protection (OCP), short-circuit protection, undervoltage lockout, and overtemperature.

The DRV8823 is packaged in a 48-pin HTSSOP package (eco-friendly: RoHS and no Sb/Br).

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DRV8823 HTSSOP (48) 6.10 mm × 12.50 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

DRV8823 alt_slvs913.gif