DRV8886AT

ACTIVE

37-V, 2-A bipolar stepper motor driver with integrated current sensing & smart tune technology

Top

Product details

Parameters

Number of full bridges 2 Vs (Min) (V) 8 Vs (Max) (V) 37 Full-scale current (A) 2 Peak output current (A) 3 RDS(ON) (HS + LS) (mOhms) 550 Control mode STEP/DIR Control interface Hardware (GPIO) Micro-stepping levels 16 Features Integrated Current Sensing, Smart Tune Approx. price (US$) 1.36 | 1ku 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
  • Smart tune adaptive decay technology,
    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
  • Dynamic and 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)

All trademarks are the property of their respective owners.

open-in-new Find other Stepper motor drivers

Description

The DRV8886AT 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 DRV8886AT 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 DRV8886AT uses an internal current sense architecture to eliminate the need for two external power sense resistors saving PCB area and system cost. The DRV8886AT uses an internal PWM current regulation scheme adjustable between smart tune adaptive decay technology, slow, and mixed decay options. Smart tune adaptive decay technology automatically adjusts for optimal current regulation performance and compensates for motor variation and aging effects.

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.

open-in-new Find other Stepper motor drivers
Download

Technical documentation

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description
The DRV8886AT evaluation module (EVM) demonstrates the integrated current sensing capabilities and performance of the DRV8886AT integrated circuit from Texas Instruments. The EVM includes the DRV8886AT to control a stepper motor, a MSP430F2617 to control the DRV8886AT 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
SLVC682.ZIP (12801 KB)

Reference designs

REFERENCE DESIGNS Download
24V Stepper Motor Controller with Integrated Current Sense Reference Design
TIDA-00867 The TIDA-00867 reference design showcases the benefits of integrated current sensing for stepper motors. Integraded current sensing is available on the DRV8885. The DRV8885EVM to demonstrate this feature.
document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

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

Smart tuning technology: Automatically tune your stepper motor

Automatic, smooth and efficient. Meet smart tuning technology and let our stepper motor drivers do the tuning for you.

Posted: 10-Jan-2018
Duration: 03:58

Explore our smart tuning devices

Related videos