DRV8886

ACTIVE

37-V, 2-A bipolar stepper motor driver with integrated current sensing & 1/16 microstepping

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Product details

Parameters

Number of full bridges 2 Vs (Min) (V) 8 Vs ABS (Max) (V) 40 Full-scale current (A) 2 Peak output current (A) 3 RDS(ON) (HS + LS) (mOhms) 550 Sleep current (uA) 20 Control mode STEP/DIR Control interface Hardware (GPIO) Micro-stepping levels 16 Features Current Regulation, Integrated Current Sensing Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Stepper motor drivers

Package | Pins | Size

HTSSOP (PWP) 24 34 mm² 7.7 x 4.4 WQFN (RHR) 28 19 mm² 5.5 x 3.5 open-in-new Find other Stepper motor drivers

Features

  • PWM microstepping stepper motor driver
    • Up to 1/16 microstepping
    • Non-circular and standard ½ step modes
  • Integrated current sense functionality
    • No sense resistors required
    • ±6.25% Full-scale current accuracy
  • Slow and mixed decay options
  • 8 to 37-V Operating supply voltage range
  • Low RDS(ON): 550 mΩ HS + LS at 24 V, 25°C
  • High current capacity
    • 3-A Peak per bridge
    • 2-A Full-scale per bridge
    • 1.4-A rms per bridge
  • Fixed off-time PWM current regulation
  • Simple STEP/DIR interface
  • Low-current sleep mode (20 µA)
  • Small package and footprint
    • 24 HTSSOP PowerPAD™ package
    • 28 WQFN package
  • Protection features
    • VM Undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Fault condition indication pin (nFAULT)
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Description

The DRV8886 is a stepper motor driver for industrial and consumer end equipment applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8886 is capable of driving up to 2-A full scale or 1.4-A rms output current (24-V and TA = 25°C, dependent on PCB design).

The DRV8886 uses an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The DRV8886 uses an internal fixed off-time PWM current regulation scheme adjustable between slow and mixed decay options.

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 different step modes ranging from full-step to 1/16 microstepping. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated nSLEEP pin.

Device protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by the nFAULT pin.

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Technical documentation

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Type Title Date
* Data sheet DRV8886 2-A Stepper Motor Driver With Integrated Current Sense datasheet (Rev. C) Mar. 11, 2020
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) Jan. 19, 2021
Application note Advantages of Integrated Current Sensing (Rev. A) Oct. 09, 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 DRV8886 Evaluation Module User's Guide Feb. 01, 2017
Technical article The story of motor-drive integration Jan. 09, 2017
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
49
Description
The DRV8886 evaluation module (EVM) demonstrates the integrated current sensing capabilities and performance of the DRV8886 integrated circuit from Texas Instruments. The EVM includes the DRV8886 to control a stepper motor, a MSP430F2617 to control the DRV8886 inputs, and a USB to UART to (...)
Features
  • Integrated Current Sense to minimize cost and power
  • 8V to 37V Operating Supply Voltage Range
  • Multiple Decay Modes
  • Adjustable current regulation
  • User-friendly GUI via MSP430 and USB interface

Software development

SUPPORT SOFTWARE Download
SLVC680.ZIP (12734 KB)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 24 View options
WQFN (RHR) 28 View options

Ordering & quality

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  • Ongoing reliability monitoring

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