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    Parts    DRV8426RGER
DRV8426RGER

TIDRV8426RGER

Texas Instruments
Bipolar Motor Driver Power MOSFET Step/Direction 24-VQFN (4x4)
Active1,180 in stock
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Overview

The DRV8426RGER is a highly integrated bipolar stepper motor driver from Texas Instruments designed for a wide range of industrial and consumer applications. It supports microstepping up to 256 steps and integrates two N-channel power MOSFET half-bridges to deliver up to 1.5A of output current.

Why Choose This Part

The device features an integrated current sensing architecture that eliminates the need for external power sense resistors, saving significant PCB area. It offers advanced protection features including undervoltage lockout, charge pump fault, overcurrent protection, and thermal shutdown to ensure system reliability.

Applications

Precision Robotics
High-resolution microstepping allows for smooth motion and precise positioning in robotic joints and actuators.
3D Printers and CNC Machines
Integrated step and direction interface simplifies firmware overhead for controlling linear axes.
Textile Manufacturing
The integrated power stage and wide supply range make it suitable for driving small motors in automated looms and sewing machines.
Medical Imaging Equipment
Low-noise operation through fine microstepping is ideal for precision movement in scanners and laboratory automation.

Key Specifications

Function Driver - Fully Integrated, Control and Power Stage
Interface Step/Direction
Technology Power MOSFET
Applications General Purpose
Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Voltage - Load 4.5V ~ 33V
Step Resolution >256 Microsteps
Current - Output 1.5A
Voltage - Supply 0V ~ 5.5V
Motor Type - AC, DC Brushed DC
Motor Type - Stepper Bipolar
Output Configuration Half Bridge (2)
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 24-VQFN (4x4)

Getting Started

Engineers can evaluate this driver using the DRV8426EEVM evaluation module, which provides a convenient platform for tuning motor performance. Practical implementation requires a logic-level microcontroller to provide the STEP and DIR signals and proper thermal management of the 24-VQFN package through the exposed thermal pad.

Also Consider

DRV8434RGER TITexas Instruments - Offers a higher current rating of up to 2.5A for more demanding stepper motor applications.
TMC2209-LA Trinamic - Features specialized StealthChop technology for ultra-quiet motor operation in noise-sensitive environments.
DRV8825PWP TITexas Instruments - A common alternative in a HTSSOP package for those who prefer leaded components over QFN for easier hand soldering.