●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
