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DRV8889A-Q1 Datasheet Automotive Stepper Driver

Manufacturer: Texas Instruments

Download the DRV8889A-Q1 datasheet PDF. This datasheet also includes the DRV8889-Q1 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (DRV8889-Q1-etcTI.pdf) that lists specifications for multiple related part numbers.

General Description

The DRV8889-Q1 and DRV8889A-Q1 are fully integrated stepper motor drivers, 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.

The device 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.

Overview

DRV8889-Q1, DRV8889A-Q1 SLVSEE9D – APRIL 2020 – REVISED APRIL 2021 DRV8889-Q1, DRV8889A-Q1 Automotive Stepper Driver with Integrated Current Sense, 1/256 Micro-Stepping, and Stall Detection.

Key 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.
  • 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.

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