SLOU559 April   2023

 

  1.   Abstract
  2.   Trademarks
  3. Introduction
    1. 1.1 DRV8845 Quad H-bridge motor driver
    2. 1.2 DRV8849 Dual Stepper driver
  4. Jumpers Table and Setup
  5. Software Setup
  6. Cloud-based GUI
  7. Local Installation
  8. Hardware Setup
  9. Launching the DRV884x-EVM-GUI Application
  10. GUI Operations DRV8845
  11. GUI Operations DRV8849
  12. 10Updating Firmware
  13. 11Revision History

DRV8845 Quad H-bridge motor driver

The DRV8845 is a quad full-bridge driver for a wide variety of industrial applications. The device can be used for driving up to two stepper motors or up to four brushed-DC motors. Each full-bridge output is rated up to 1.5 A and 38 V. The DRV8845 includes pulse width modulation (PWM) current regulators, along with 2- bit nonlinear DACs (digital-to-analog converters) that allow stepper motors to be controlled in full, half, and quarter steps; and DC motors in forward, reverse, and coast modes.

This driver offers Smart tune decay mode for smooth and quiet operation. Protection features in this driver include thermal shutdown with hysteresis (OTSD), undervoltage lockout (UVLO) and overcurrent protection (OCP).