DRV8818

ACTIVE

35-V, 2.5-A bipolar stepper motor driver with current regulation and 1/8 microstepping

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Product details

Parameters

Number of full bridges 2 Vs (Min) (V) 8 Vs ABS (Max) (V) 35 Full-scale current (A) 2.5 Peak output current (A) 3.5 RDS(ON) (HS + LS) (mOhms) 370 Sleep current (uA) 3 Control mode STEP/DIR Control interface Hardware (GPIO) Micro-stepping levels 8 Features Current Regulation Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other Stepper motor drivers

Package | Pins | Size

HTSSOP (PWP) 28 43 mm² 9.7 x 4.4 open-in-new Find other Stepper motor drivers

Features

  • Pulse Width Modulation (PWM) Microstepping Motor Driver
    • Built-In Microstepping Indexer
    • Up to 8 Microsteps/Step
    • Step and Direction Control
    • Programmable Mixed Decay, Blanking, and Off Time
  • Up to 2.5-A Current Per Winding
  • Low 0.37-Ω (HS + LS) MOSFET RDS(ON) (25°C)
  • 8-V to 35-V Operating Supply Voltage Range
  • Pin to Pin Upgrade for DRV8811 With Lower RDS(ON)
  • Thermally-Enhanced Surface Mount Package
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
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Description

The DRV8818 provides an integrated stepper motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, as well as microstepping indexer logic to control a stepper motor.

The output driver block for each consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings.

A simple STEP/DIRECTION interface allows easy interfacing to controller circuits. The mode pins allow for configuration of the motor in full-step, half-step, quarter-step, or eighth-step modes. Decay mode and PWM off time are programmable.

Internal shutdown functions are provided for over current protection, short circuit protection, under-voltage lockout and overtemperature.

The DRV8818 is packaged in a 28-pin HTSSOP package with PowerPAD.

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Technical documentation

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Type Title Date
* Data sheet DRV8818 Stepper Motor Controller IC datasheet (Rev. E) Jan. 19, 2016
Application note Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) Jul. 22, 2021
Application note Current Recirculation and Decay Modes (Rev. A) Apr. 20, 2021
Application note Intelligent Stepper Motor Driver (Rev. B) Jan. 20, 2021
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) Jan. 19, 2021
Application note High Resolution Microstepping Driver With the DRV88xx Series (Rev. A) Dec. 21, 2020
Technical article Drive unipolar stepper motors as bipolar stepper motors with a simple wiring reconfiguration Apr. 09, 2020
Technical article How stepper motors improve noise and efficiency in automotive system design Nov. 19, 2019
Application note Best Practices for Board Layout of Motor Drivers (Rev. A) Jan. 22, 2019
Technical article Getting smart about tuning your stepper motor Aug. 23, 2018
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) Jul. 06, 2018
User guide DRV8818 EVM GUI (Rev. A) Apr. 27, 2017
Technical article The story of motor-drive integration Jan. 09, 2017
More literature TM4C123x Stepper Motor Control Product Summary Jul. 06, 2015
Application note Applying acceleration and deceleration profiles to bipolar stepper motors Jul. 17, 2012
Application note Understanding Motor Driver Current Ratings Feb. 06, 2012
Application note PowerPAD™ Made Easy (Rev. B) May 12, 2004

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
99
Description

The DRV8818 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8818 integrated micro-stepping motor driver from Texas Instruments. This EVM comes with an on-board MSP430 microprocessor which has been pre-programmed for standalone operation. The regulated voltage for the (...)

Features
  • Supports stepper motor microstepping up to 1/8 step and up to 2.5A.
  • Advanced graphical user interface (download available below) enables acceleration, deceleration and motion profiles.
  • On-board potentiometers allows for adjusting Vref, decay ratio, blanking time and off time.
  • Control and status signals (...)

Software development

SUPPORT SOFTWARE Download
SLVC415D.ZIP (14291 KB)

Design tools & simulation

SCHEMATIC Download
SLVC588.ZIP (1447 KB)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 28 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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

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