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