DRV8426RGER

Overview

The DRV8426RGER is a bipolar stepper motor driver from Texas Instruments, designed for applications requiring precise motion control. It features a half-bridge output configuration capable of delivering up to 1.5 A of continuous output current per phase. The device operates within a supply voltage range of 4.5 V to 33 V and supports PWM input interfaces for step and direction control. It includes an integrated microstepping divider with selectable resolutions of 1, 1/2, 1/4, 1/8, and 1/16 steps. The component is housed in a VQFN-24 package and is rated for operation across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a microstepping divider with five selectable resolution settings for smooth motor operation.
• Features a half-bridge power stage architecture optimized for driving bipolar stepper motors.
• Includes built-in protection mechanisms against over-current, under-voltage lockout, and thermal shutdown.

Applications

• Camera lens positioning systems
• Printer carriage and platen drives
• Projector focus and zoom mechanisms
• Automated office equipment components

Procurement Notes

Verify the specific suffix RGER indicates reel packaging when sourcing. Confirm that the order quantity aligns with the manufacturer's standard reel size requirements. Ensure the application environment stays within the specified -40°C to +125°C operating temperature limits. Check for RoHS compliance documentation if required by regional regulations. Validate that the PCB footprint matches the VQFN-24 package dimensions provided in the official mechanical drawings.

Selection Notes

Select this component for designs requiring moderate current drive capabilities up to 1.5 A without external power transistors. Consider the integrated microstepping functionality to reduce controller complexity and improve motion smoothness. Evaluate the thermal performance requirements based on the expected load current and ambient conditions. Ensure the system voltage does not exceed the maximum rating of 33 V to prevent device damage.

Part Context

This part belongs to the DRV8426 series of stepper motor drivers manufactured by Texas Instruments. The series is characterized by high integration levels, combining logic, control, and power stages into a single package. The RGER suffix specifically denotes the tape and reel packaging format used for automated assembly processes.

Replacement Considerations

Consult official cross-reference data for direct substitutes. Generic stepper drivers may lack the integrated microstepping divider or specific protection features found in this model.