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




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 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 查找其它 步进电机驱动器


VQFN (RGE) 24 16 mm² 4 x 4 open-in-new 查找其它 步进电机驱动器


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: -40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 3A
    • Device CDM ESD Classification Level C4B
  • PWM microstepping stepper motor driver
    • 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): 1200 mΩ HS + LS at 13.5 V, 25°C
  • High current capacity per bridge
    • 1.7-A peak, 1-A full-scale, 0.7-A rms
  • 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)
  • Spread spectrum clocking and output slew rate control minimizes EMI
  • Small package and footprint
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Open load detection
    • Overtemperature warning (OTW)
    • Undertemperature warning (UTW)
    • Thermal shutdown (OTSD)
    • Fault condition indication pin (nFAULT)

All trademarks are the property of their respective owners.

open-in-new 查找其它 步进电机驱动器


The DRV8899-Q1 is a stepper motor driver for automotive applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8899-Q1 is capable of driving up to 1-A full scale or 0.7-A rms output current (13.5-V and TA = 25°C, dependent on PCB design).

The DRV8899-Q1 uses an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The DRV8899-Q1 uses an internal PWM current regulation scheme selectable between smart tune, slow, and mixed decay options. Smart tune decay technology automatically adjusts for optimal current regulation performance and compensates for motor variation and aging effects. A torque DAC feature allows the controller to scale the output current without needing to scale the VREF voltage reference.

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 1/256 microstepping. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated 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.

open-in-new 查找其它 步进电机驱动器

Sample availability

RGE package is in preview. Preproduction samples are available (PDRV8899QWRGERQ1).  Request now


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类型 标题 下载最新的英文版本 发布
* 数据表 DRV8899-Q1 Automotive Stepper Driver with Integrated Current Sense and 1/256 Micro-Stepping 数据表 2017年 10月 10日
技术文章 Drive unipolar stepper motors as bipolar stepper motors with a simple wiring reconfiguration 2020年 4月 9日
技术文章 How stepper motors improve noise and efficiency in automotive system design 2019年 11月 19日
用户指南 DRV8899-Q1EVM GUI User's Guide 2019年 10月 11日
用户指南 DRV8899-Q1 EMV User's Guide 2019年 10月 3日
白皮书 How AutoTune™ regulates current in stepper motors 2019年 3月 19日
白皮书 Stepper motors made easy with AutoTune™ 2019年 3月 19日
技术文章 Getting smart about tuning your stepper motor 2018年 8月 23日
技术文章 The story of motor-drive integration 2017年 1月 9日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日




评估板 下载
document-generic 用户指南

DRV8899-Q1 评估模块 (EVM) 可轻松评估 DRV8899-Q1 器件。DRV8899-Q1 器件是一款集成双路 H 桥驱动器,适用于汽车步进电机应用。

该评估模块允许用户针对器件的所有功能模式(包括低至 1/256 步进分辨率的微步进、适用于智能调优的多种衰减模式)对器件进行配置。板载 MSP430F2617 提供 STEP、DIR(方向)和 SPI 信号,以控制 DRV8899-Q1。这些设置可以在适用于此 EVM 的可下载器件 GUI 中进行配置。

有关该评估模块的更多信息,请参阅《DRV8899-Q1EVM 硬件和 GUI 用户指南》。

  • 4.5V 至 45V 工作电压范围
  • 全步进和低至 1/256 的微步进模式
  • 针对步进调优的可编程衰减模式,包括动态衰减和纹波控制智能调优模式
  • 集成式电流感应功能
  • 支持菊花链的 SPI


支持软件 下载
SLVC794.ZIP (27684 KB)


封装 引脚 下载
VQFN (RGE) 24 了解详情



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