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DRV8434ARGER

TIDRV8434ARGER

Texas Instruments
Bipolar Motor Driver NMOS Step/Direction 24-VQFN (4x4)
Active3,827 in stock

Overview

The DRV8434ARGER is a high-performance bipolar stepper motor driver featuring an integrated N-channel MOSFET power stage and a microstepping indexer. It supports a wide operating voltage from 4.5V to 48V and can deliver up to 4A peak output current, making it suitable for demanding industrial and automation tasks. The device includes proprietary smart tune ripple control technology to optimize decay modes automatically for quiet and efficient motor operation.

Why Choose This Part

Integrated stall detection and open-load detection reduce the need for external sensors and improve system reliability. The smart tune decay modes eliminate the need for manual tuning of PWM cycles, while spread spectrum clocking helps meet strict EMI requirements in sensitive environments.

Applications

Industrial Robotics
Precise position control for robotic arms and automated factory equipment using 1/256 microstepping.
Precision Printing and Scanning
Smooth motion control for 3D printers, office scanners, and textile machinery where low vibration is critical.
ATM and Cash Handling
Reliable transport mechanisms in banking terminals and money handling machines.
Medical Laboratory Automation
Quiet and accurate fluid handling and sample positioning in diagnostic equipment.

Key Specifications

Function Driver - Fully Integrated, Control and Power Stage
Interface Step/Direction
Technology NMOS
Applications General Purpose
Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Step Resolution 1 ~ 1/256
Current - Output 2.5A
Voltage - Supply 4.5V ~ 48V
Motor Type - AC, DC Brushed DC
Motor Type - Stepper Bipolar
Output Configuration Half Bridge
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 24-VQFN (4x4)

Getting Started

Evaluation can be performed using the DRV8434AEVM board which allows for direct control of the STEP/DIR interface. Ensure adequate thermal relief on the 24-VQFN exposed pad to handle high current loads, and configure the VREF pin to set the desired current limit for the stepper windings.

DRV8434 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Function Stock
DRV8434ARGER (this part) Driver - Fully Int.. 3,827
DRV8434AEVM Motor Controller/D.. 61
Also available as: DRV8434AQWRGERQ1, DRV8434APWPR

Also Consider

DRV8825PWPR TITexas Instruments - A widely used alternative for lower voltage applications up to 45V with a simplified HTSSOP package.
TMC2209-LA Trinamic - Features ultra-quiet StealthChop technology and sensorless homing for consumer-grade 3D printers.
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