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DRV8825 - 产品图解：
DRV8825-具有片上 1/32 微步进分度器的 2.5A 双极步进电机驱动器（Step/Dir 控制器）
DRV8825-集成FET的步进栅极驱动器-步进驱动器-电机驱动器
DRV8825-DRV8825 Stepper Motor Controller IC
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TI产品 - DRV8825介绍

DRV8825 - 具有片上 1/32 微步进分度器的 2.5A 双极步进电机驱动器（Step/Dir 控制器）

DRV8825是TI德州仪器公司的一款集成FET的步进栅极驱动器产品，DRV8825是具有片上 1/32 微步进分度器的 2.5A 双极步进电机驱动器（Step/Dir 控制器），本站介绍了DRV8825的封装应用图解、特点和优点、功能等，并给出了与DRV8825相关的TI元器件型号供参考。

DRV8825 - 具有片上 1/32 微步进分度器的 2.5A 双极步进电机驱动器（Step/Dir 控制器） - 集成FET的步进栅极驱动器 - 步进驱动器 - 德州仪器

产品特性
  • PWM Microstepping Stepper Motor Driver
    • Built-In Microstepping Indexer
    • Up to 1/32 Microstepping
  • Multiple Decay Modes
    • Mixed Decay
    • Slow Decay
    • Fast Decay
  • 8.2-V to 45-V Operating Supply Voltage Range
  • 2.5-A Maximum Drive Current at 24 V and TA = 25°C
  • Simple STEP/DIR Interface
  • Low Current Sleep Mode
  • Built-In 3.3-V Reference Output
  • Small Package and Footprint
  • Protection Features
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • VM Undervoltage Lockout (UVLO)
    • Fault Condition Indication Pin (nFAULT)
产品应用
  • Automatic Teller Machines
  • Money Handling Machines
  • Video Security Cameras
  • Printers
  • Scanners
  • Office Automation Machines
  • Gaming Machines
  • Factory Automation
  • Robotics
产品说明

The DRV8825 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers and a microstepping indexer, and is intended to drive a bipolar stepper motor. The output driver block consists of N-channel power MOSFET’s configured as full H-bridges to drive the motor windings. The DRV8825 is capable of driving up to 2.5 A of current from each output (with proper heat sinking, at 24 V and 25°C).

A simple STEP/DIR interface allows easy interfacing to controller circuits. Mode pins allow for configuration of the motor in full-step up to 1/32-step modes. Decay mode is configurable so that slow decay, fast decay, or mixed decay can be used. A low-power sleep mode is provided which shuts down internal circuitry to achieve very low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin.

Internal shutdown functions are provided for overcurrent, short circuit, under voltage lockout and over temperature. Fault conditions are indicated via the nFAULT pin.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
DRV8825HTSSOP (28)9.70 mm × 6.40 mm
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