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DRV8886AT

ACTIVE

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

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Data sheet

DRV8886AT

ACTIVE
Data sheet Order now

Product details

Vs ABS (max) (V) 40 Vs (min) (V) 8 Peak output current (A) 3 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2 RDS(ON) (HS + LS) (mΩ) 550 Sleep current (µA) 20 Microstepping levels 16 Decay mode Mixed, Slow, Smart Tune Features Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
Vs ABS (max) (V) 40 Vs (min) (V) 8 Peak output current (A) 3 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2 RDS(ON) (HS + LS) (mΩ) 550 Sleep current (µA) 20 Microstepping levels 16 Decay mode Mixed, Slow, Smart Tune Features Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
WQFN (RHR) 28 19.25 mm² (5.5 mm × 3.5 mm) HTSSOP (PWP) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • 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)
  • 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)

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.

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.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet DRV8886AT 2-A Stepper Motor Driver With Integrated Current Sense and Smart Tune Technology datasheet (Rev. C) PDF | HTML Mar 11, 2020
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML Jun 20, 2022
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML Oct 14, 2021
White paper How smart tune regulates current in stepper motors (Rev. A) Mar 19, 2019
Application brief Smart Tuning for Efficient Stepper Driving Nov 20, 2018
Technical article Getting smart about tuning your stepper motor PDF | HTML Aug 23, 2018
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) Jul 6, 2018
Application brief 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.

Evaluation board

DRV8886ATEVM — DRV8886AT 2.0A Stepper Motor Driver With Integrated Sense Resistor Evaluation Module

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 (...)
User guide: PDF
Supported products & hardware
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Support software

SLVC682 — DRV8886ATEVM Firmware and GUI

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
WQFN (RHR) 28 Ultra Librarian
HTSSOP (PWP) 24 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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