SLLSEL7B October   2014  – April 2024 DRV8848

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
    1.     Pin Functions
    2.     External Components
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings Comm
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
    7. 5.7 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 PWM Motor Drivers
      2. 6.3.2 Bridge Control
      3. 6.3.3 Parallel Operation
      4. 6.3.4 Current Regulation
      5. 6.3.5 Current Recirculation and Decay Modes
      6. 6.3.6 Protection Circuits
        1. 6.3.6.1 OCP
        2. 6.3.6.2 TSD
        3. 6.3.6.3 UVLO
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Current Regulation
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
      1. 7.3.1 Bulk Capacitance Sizing
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Third-Party Products Disclaimer
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
    6. 8.6 Community Resources
    7. 8.7 Trademarks
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

6.1 Overview

The DRV8848 is an integrated motor driver device for two DC motors or a bipolar stepper motor. The device integrates two H-bridges that use NMOS drivers and current sense regulation circuitry. The DRV8848 can be powered with a supply range between 4 to 18V and is capable of providing an output current of 1A rms.

A simple PWM interface allows easy interfacing to the controller circuit.

The current regulation uses a fixed off-time (tOFF) PWM scheme. The current regulation trip point is controlled by the value of the sense resistor and the voltage applied to VREF.

A low-power sleep mode is included, which allows the system to save power when not driving the motor.