DRV8825PWPR

步进电机控制器IC STEPPER MOTOR CONTROLLER IC

Description

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.

Features

• 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

Applications

• Automatic Teller Machines

• Money Handling Machines

• Video Security Cameras

• Printers

• Scanners

• Office Automation Machines

• Gaming Machines

• Factory Automation

• Robotics