2.5A Bipolar Stepper Motor Driver with On-Chip 1/32 Microstepping Indexer (Step/Dir Ctrl) - DRV8825

DRV8825 (ACTIVE)

2.5A Bipolar Stepper Motor Driver with On-Chip 1/32 Microstepping Indexer (Step/Dir Ctrl)

Recommended alternative parts

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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).

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.

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

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Parametrics Compare all products in Stepper Driver

 
Vs (Min) (V)
Vs (Max) (V)
# of Full Bridges
RDS(ON) (HS + LS) (mOhms)
RMS Output Current (A)
Peak Output Current (A)
Current Regulation Levels
Control I/F
Additional Features
Rating
Operating Temperature Range (C)
Approx. Price (US$)
DRV8825 DRV8824
8.2     8.2    
45     45    
2     2    
400     1280    
1.8     1.1    
2.5     1.6    
32     32    
Indexer     Indexer    
1/32 Microstepping
P2P w/ DRV8824    
1/32 Microstepping
P2P w/ DRV8825    
Catalog     Catalog    
-40 to 85     -40 to 85    
2.40 | 1ku     1.62 | 1ku    

Companion parts

Part # Name Product Family Comments
MSP430F2619   16-Bit Ultra-Low-Power MCU, 92KB Flash, 4KB RAM, 12-Bit ADC, Dual DAC, 2 USCI, HW Mult, DMA   Ultra-low Power - MSP430F2x/4x    16-Bit Ultra-Low-Power MCU, 92KB Flash, 4KB RAM, 12-Bit ADC, Dual DAC, 2 USCI, HW Mult, DMA  
MSP430F2112   16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 256B RAM, 10 bit ADC, 1 USCI   Ultra-low Power - MSP430F2x/4x    16-Bit Ultra-Low-Power MCU, 92KB Flash, 4KB RAM, 12-Bit ADC, Dual DAC, 2 USCI, HW Mult, DMA  
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