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DRV8889-Q1

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Automotive 45-V, 1.5-A bipolar stepper motor driver, integrated current sensing & stall detection

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Product details

Parameters

Number of full bridges 2 Vs (Min) (V) 4.5 Vs (Max) (V) 45 Full-scale current (A) 1.5 Peak output current (A) 2.4 RDS(ON) (HS + LS) (mOhms) 900 Control mode STEP/DIR Control interface Hardware (GPIO), SPI Micro-stepping levels 256 Features Integrated Current Sensing, Open-Load Detection, Smart Tune, Stall Detection open-in-new Find other Stepper motor drivers

Package | Pins | Size

HTSSOP (PWP) 24 34 mm² 7.7 x 4.4 VQFN (RGE) 24 16 mm² 4 x 4 open-in-new Find other Stepper motor drivers

Features

  • 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
  • Low RDS(ON): 900 mΩ HS + LS at 13.5 V, 25°C
  • High current capacity per bridge
    • 2.4-A peak, 1.5-A full-scale, 1.1-A rms
  • 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
    • Stall detection
    • Open load detection
    • Overtemperature warning and shutdown
    • Undertemperature warning
    • Fault condition indication pin (nFAULT)

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Description

The DRV8889-Q1 is a fully integrated stepper motor driver, supporting up to 1.5 A full scale current with an internal microstepping indexer, smart tune decay technology, advanced stall detection algorithm, and integrated current sensing.

With a simple step/dir interface to manage the direction and step rate, DRV8889-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. With advanced stall detection algorithm, designers can detect if the motor stopped and take action as needed which can improve efficiency and reduce noise. DRV8889-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.

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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
$75.00
Description

The DRV8889-Q1 evaluation module (EVM) allows easy evaluation of the DRV8889-Q1 device. The DRV8889-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 (...)

Features
  • 4.5-V to 40-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
  • Stall detection
  • Slip detection

Software development

SUPPORT SOFTWARE Download
SLVC768.ZIP (28180 KB)
SUPPORT SOFTWARE Download
SLVC796B.ZIP (110884 KB)

Reference designs

REFERENCE DESIGNS Download
Stepper-motor driver reference design for adaptive front lights and dynamic headlight leveling
TIDA-020026 — This reference design details a solution to drive and control two stepper motors for dynamic headlight leveling and swiveling in automotive headlight applications such as an adaptive LED driving module or a high-resolution DLP module. It uses a local interconnect network (LIN) system basic chip with (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 24 View options
VQFN (RGE) 24 View options

Ordering & quality

Support & training

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