DRV8805DW

Overview

The DRV8805DW is a unipolar stepper motor driver manufactured by Texas Instruments, housed in a 20-SOIC surface-mount package. It integrates full control and power stages for driving unipolar stepper motors with bipolar winding configurations. The device supports a supply voltage range of 8.2 V to 60 V and delivers an output current of up to 800 mA per phase. It features low-side outputs and operates within a junction temperature range of -40°C to 150°C. The component utilizes power MOSFET technology and accepts logic interface signals.

Feature Summary

• Integrates complete control logic and power MOSFET output stages for simplified design
• Supports operation with unipolar stepper motors using bipolar winding connections
• Provides low-side output configuration for direct interfacing with standard logic

Applications

• Unipolar stepper motor control systems
• General purpose motion control applications
• Automation equipment requiring integrated motor driving

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as availability may vary between tube and reel formats depending on the distributor. Confirm that the component status aligns with project requirements, noting that some variants in this series may be subject to production lifecycle changes or obsolescence notices from the manufacturer. Ensure compatibility with existing PCB footprints for the 20-SOIC package.

Selection Notes

Select this component for designs requiring an integrated solution for unipolar stepper motors without external discrete drivers. Consider the 800 mA output capability and 60 V maximum voltage rating against load requirements. Evaluate the thermal performance within the specified junction temperature range. Verify that the logic interface levels match the system controller. Note that alternative packaging options like the DWR variant exist for different assembly needs.

Part Context

This part belongs to the DRV8805 family of motor drivers from Texas Instruments. It is designed specifically for unipolar stepper motor applications, offering a compact alternative to discrete driver solutions. The family includes variants such as the DRV8805DWR, which shares similar electrical characteristics but differs in packaging format. These devices are categorized under PMIC and motor controllers in industrial electronics catalogs.

Replacement Considerations

The DRV8805DWR is listed as a substitute option for the DRV8805DW, primarily differing in packaging type rather than core functionality.