Automotive 45-V, 1.0-A bipolar stepper motor driver with integrated current sensing


Product details


Number of full bridges 2 Vs (Min) (V) 4.5 Vs (Max) (V) 45 Full-scale current (A) 1 Peak output current (A) 1.7 RDS(ON) (HS + LS) (mOhms) 1200 Sleep current (uA) 2 Control mode STEP/DIR Control interface Hardware (GPIO), SPI Micro-stepping levels 256 Features Integrated Current Sensing, Open-Load Detection, Smart Tune open-in-new Find other Stepper motor drivers

Package | Pins | Size

VQFN (RGE) 24 16 mm² 4 x 4 open-in-new Find other Stepper motor drivers


  • AEC-Q100 Qualified for Automotive
  • Up to 1/256 microstepping
  • Integrated current sense functionality
    • No sense resistors required
  • Smart tune decay technology, Fixed slow, and mixed decay options
  • 4.5 to 45-V Operating supply voltage range
  • Pin to pin RDS(ON) variants:

    - DRV8889/A-Q1: 900 mΩ HS + LS at 25°C

    - DRV8899-Q1: 1200 mΩ HS + LS at 25°C
  • High current capacity per bridge
    • DRV8889/A-Q1: 2.4-A peak, 1.5-A full-scale
    • DRV8899-Q1: 1.7-A peak, 1-A full-scale
  • TRQ_DAC bits to scale full-scale current
  • Configurable off-time PWM chopping
    • 7-µs, 16-µs, 24-µs, or 32-µs.
  • Simple STEP/DIR interface
  • SPI with daisy chain support
  • Low-current sleep mode (2 µA)
  • Programmable output slew rate
  • Spread spectrum clocking to minimize EMI
  • Protection features
    • VM undervoltage lockout
    • Overcurrent protection
    • Open load detection
    • Overtemperature warning and shutdown
    • Undertemperature warning
    • Fault condition indication pin (nFAULT)

All trademarks are the property of their respective owners.

open-in-new Find other Stepper motor drivers


The DRV8899-Q1 is a fully integrated stepper motor driver, supporting up to 1 A full scale current with an internal microstepping indexer, smart tune decay technology, and integrated current sensing. With a simple step/dir interface to manage the direction and step rate, DRV8899-Q1 supports up to 1/256 levels of microstepping to enable a smooth motion profile. Integrated current sensing eliminates the need for two external resistors, saving board space and cost. DRV8899-Q1 provides 8 decay mode options including: smart tune, slow, and mixed decay options. Smart tune automatically adjusts for optimal current regulation performance and compensates for any motor variation and aging effects. The device also includes an integrated torque DAC which allows for the controller to scale the output current through SPI without needing to scale the VREF voltage reference. A low-power sleep mode is provided for very low standby current using an nSLEEP pin. The device features full duplex, 4-wire synchronous SPI communication, with daisy chain support for up to 63 devices connected in series, for configurability and detailed fault reporting.

View our full portfolio of stepper motor drivers on

open-in-new Find other Stepper motor drivers
Similar products you might be interested in
open-in-new Compare products
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
NEW DRV8434A ACTIVE 48-V, 2.5-A bipolar stepper motor driver, integrated current sensing & stall detection (GPIO)
NEW DRV8434S ACTIVE 48-V, 2.5-A bipolar stepper motor driver, integrated current sensing & stall detection (SPI)
Similar but not functionally equivalent to the compared device:
NEW DRV8889-Q1 ACTIVE Automotive 45-V, 1.5-A bipolar stepper motor driver, integrated current sensing & stall detection Pin to pin part with stall detection

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 16
Type Title Date
* Datasheet DRV8899-Q1 Automotive Stepper Driver with Integrated Current Sense and 1/256 Micro-Stepping datasheet (Rev. A) Jan. 14, 2020
Application note Advantages of Integrated Current Sensing (Rev. A) Oct. 09, 2020
Application note Smart Tune for Quiet and Smooth Stepper Motor Operation (Rev. A) Oct. 07, 2020
White paper Stepper Motors Made Easy with Smart Tune (Rev. C) Oct. 07, 2020
Technical articles Drive unipolar stepper motors as bipolar stepper motors with a simple wiring reconfiguration Apr. 09, 2020
Application note Various Reference Voltage Driving Techniques for Motor Drive Current Regulation (Rev. A) Jan. 27, 2020
Technical articles How stepper motors improve noise and efficiency in automotive system design Nov. 19, 2019
Application note Open Load Detection in Intergrated Drivers (Rev. A) Nov. 07, 2019
User guide DRV8899-Q1EVM GUI User's Guide (Rev. A) Oct. 11, 2019
User guide DRV8899-Q1 EMV User's Guide Oct. 03, 2019
White paper How smart tune regulates current in stepper motors (Rev. A) Mar. 19, 2019
Application note Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) Feb. 19, 2019
Application note Smart Tuning for Efficient Stepper Driving Nov. 20, 2018
Technical articles Getting smart about tuning your stepper motor Aug. 23, 2018
Application note Daisy Chain Implementation for Serial Peripheral Interface Aug. 09, 2018
Technical articles The story of motor-drive integration Jan. 09, 2017

Design & development

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

Hardware development


The DRV8899-Q1 evaluation module (EVM) allows easy evaluation of the DRV8899-Q1 device. The DRV8899-Q1 device is an integrated, dual H-bridge driver for automotive stepper motor applications.

The evaluation module allows the device to be configured for all of its functional modes including (...)

  • 4.5-V to 45-V operating voltage range
  • Full stepping and microstepping modes down to 1/256
  • Programmable decay modes for stepper tuning, including dynamic decay and ripple control smart-tuning modes
  • Integrated current sensing function
  • SPI with daisy chain support

Design tools & simulation

SLVMDE8.ZIP (66 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
VQFN (RGE) 24 View options

Ordering & quality

Information included:
  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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

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. ​​​​​​​​​​​​​​