Product details

Number of full bridges 2 Vs (min) (V) 4.5 Vs ABS (max) (V) 50 Full-scale current (A) 2.5 Peak output current (A) 4 RDS(ON) (HS + LS) (mΩ) 330 Sleep current (µA) 2 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 256 Features Current Regulation, Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
Number of full bridges 2 Vs (min) (V) 4.5 Vs ABS (max) (V) 50 Full-scale current (A) 2.5 Peak output current (A) 4 RDS(ON) (HS + LS) (mΩ) 330 Sleep current (µA) 2 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 256 Features Current Regulation, Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4 VQFN (RGE) 24 16 mm² 4 x 4
  • PWM Microstepping Stepper Motor Driver
    • Simple STEP/DIR Interface
    • Up to 1/256 Microstepping Indexer
  • Integrated Current Sense Functionality
    • No Sense Resistors Required
    • ±4% Full-Scale Current Accuracy
  • Smart tune, slow, and mixed decay options
  • 4.5 to 48-V Operating Supply Voltage Range
  • Low RDS(ON): 330 mΩ HS + LS at 24 V, 25°C
  • High Current Capacity: 2.5 A Full-Scale, 1.8 A rms
  • Pin to pin compatible with -

  • Configurable Off-Time PWM Chopping
    • 7-µs, 16-µs, 24-µs, or 32-µs
  • Supports 1.8 V, 3.3 V, 5.0 V Logic Inputs
  • Low-Current Sleep Mode (2 µA)
  • Spread spectrum clocking for low EMI
  • Small Package and Footprint

  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Open Load Detection (OL)
    • Thermal Shutdown (OTSD)
    • Fault Condition Output (nFAULT)
  • PWM Microstepping Stepper Motor Driver
    • Simple STEP/DIR Interface
    • Up to 1/256 Microstepping Indexer
  • Integrated Current Sense Functionality
    • No Sense Resistors Required
    • ±4% Full-Scale Current Accuracy
  • Smart tune, slow, and mixed decay options
  • 4.5 to 48-V Operating Supply Voltage Range
  • Low RDS(ON): 330 mΩ HS + LS at 24 V, 25°C
  • High Current Capacity: 2.5 A Full-Scale, 1.8 A rms
  • Pin to pin compatible with -

  • Configurable Off-Time PWM Chopping
    • 7-µs, 16-µs, 24-µs, or 32-µs
  • Supports 1.8 V, 3.3 V, 5.0 V Logic Inputs
  • Low-Current Sleep Mode (2 µA)
  • Spread spectrum clocking for low EMI
  • Small Package and Footprint

  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Open Load Detection (OL)
    • Thermal Shutdown (OTSD)
    • Fault Condition Output (nFAULT)

The DRV8434 is a stepper motor driver for industrial and consumer applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8434 is capable of driving up to 2.5-A full-scale output current (dependent on PCB design).

The DRV8434 uses an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The device uses an internal PWM current regulation scheme selectable between smart tune, slow and mixed decay options. Smart tune automatically adjusts for optimal current regulation, compensates for motor variation and aging effects and reduces audible noise from the motor.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in full-step to 1/256 microstepping. A low-power sleep mode is provided using a dedicated nSLEEP pin. Protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, open load, and overtemperature. Fault conditions are indicated by the nFAULT pin.

The DRV8434 is a stepper motor driver for industrial and consumer applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8434 is capable of driving up to 2.5-A full-scale output current (dependent on PCB design).

The DRV8434 uses an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The device uses an internal PWM current regulation scheme selectable between smart tune, slow and mixed decay options. Smart tune automatically adjusts for optimal current regulation, compensates for motor variation and aging effects and reduces audible noise from the motor.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in full-step to 1/256 microstepping. A low-power sleep mode is provided using a dedicated nSLEEP pin. Protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, open load, and overtemperature. Fault conditions are indicated by the nFAULT pin.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
DRV8424 ACTIVE 35-V, 2.5-A bipolar stepper driver with integrated current sensing & 1/256 microstepping 33V, 2.5A bipolar stepper motor driver with integrated current sensing & 1/256 microstepping
DRV8434A ACTIVE 48-V, 2.5-A bipolar stepper motor driver, integrated current sensing & stall detection (GPIO) 48V, 2.5A bipolar stepper motor driver, integrated current sensing & stall detection over Analog interface
DRV8434S ACTIVE 48-V, 2.5-A bipolar stepper motor driver, integrated current sensing & stall detection (SPI) 48V, 2.5A bipolar stepper motor driver with integrated current sensing
DRV8436 ACTIVE 48-V, 1.5-A bipolar stepper motor driver with integrated current sensing & 1/256 microstepping 48V, 1.5A bipolar stepper motor driver with integrated current sensing & 1/256 microstepping

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 15
Type Title Date
* Data sheet DRV8434 Stepper Driver With Integrated Current Sense, 1/256 Microstepping, STEP/DIR Interface and smart tune Technology datasheet (Rev. A) PDF | HTML 27 Apr 2021
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 20 Jun 2022
Application note How to Drive Unipolar Stepper Motor with the DRV8xxx PDF | HTML 03 Dec 2021
Application note How to Improve Motion Smoothness and Accuracy of Stepper Motors (Rev. A) PDF | HTML 11 Oct 2021
Application note Intelligent Stepper Motor Driver (Rev. B) PDF | HTML 20 Jan 2021
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 19 Jan 2021
Certificate DRV8434EVM EU RoHS Declaration of Conformity (DoC) 18 Jan 2021
Technical article 4 key questions about motor design challenges PDF | HTML 30 Nov 2020
Application brief Smart Tune for Quiet and Smooth Stepper Motor Operation (Rev. A) 01 Nov 2020
White paper Stepper Motors Made Easy with Smart Tune (Rev. C) PDF | HTML 01 Nov 2020
Application note How to Reduce Audible Noise in Stepper Motors PDF | HTML 21 Apr 2020
White paper How smart tune regulates current in stepper motors (Rev. A) 19 Mar 2019
Application brief Smart Tuning for Efficient Stepper Driving 20 Nov 2018
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 Jul 2018
Application brief PowerPAD™ Made Easy (Rev. B) 12 May 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DRV8434EVM — DRV8434 STEP/DIR control interface stepper motor driver board

The DRV8434 evaluation module (EVM) allows easy evaluation of the DRV8434 device.

The DRV8434 devices are integrated motor-driver solutions for bipolar stepper motors. The device integrates two N-channel power MOSFET H-bridges, integrated current sense and regulation circuitry, and a microstepping (...)

User guide: PDF
Not available on TI.com
Package Pins Download
HTSSOP (PWP) 28 View options
VQFN (RGE) 24 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos