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DRV8818

ACTIVE

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

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Data sheet

DRV8818

ACTIVE
Data sheet Order now

Product details

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) (mΩ) 370 Sleep current (µA) 3 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 8 Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
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) (mΩ) 370 Sleep current (µA) 3 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 8 Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 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)
  • 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)

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.

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) PDF | HTML 19 Jan 2016
Application note How to Reduce Power Consumption in Stepper Motor Drivers Using Holding Torque PDF | HTML 16 Aug 2024
Application note Understanding Motor Driver Current Ratings (Rev. A) PDF | HTML 05 Jul 2024
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 14 Oct 2021
Application note Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) PDF | HTML 22 Jul 2021
Application note Current Recirculation and Decay Modes (Rev. A) PDF | HTML 20 Apr 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
Application note High Resolution Microstepping Driver With the DRV88xx Series (Rev. A) PDF | HTML 21 Dec 2020
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 Jul 2018
EVM User's guide DRV8818 EVM GUI (Rev. A) 27 Apr 2017
More literature TM4C123x Stepper Motor Control Product Summary 06 Jul 2015
Analog Design Journal Applying acceleration and deceleration profiles to bipolar stepper motors 17 Jul 2012
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

DRV8818EVM — DRV8818 Evaluation Module

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 (...)

User guide: PDF
Not available on TI.com
Support software

SLVC415 — DRV8818 Software

Supported products & hardware

Supported products & hardware

Products
Stepper motor drivers
DRV8818 — 35-V, 2.5-A bipolar stepper motor driver with current regulation and 1/8 microstepping
Hardware development
Evaluation board
DRV8818EVM — DRV8818 Evaluation Module
Download
Schematic

DRV8818EVM Hardware and Programming Files (Rev. A)

SLVC588A.ZIP (13443 KB)
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Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 28 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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