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

  • DRV8886AT  -  The DRV8886AT includes Integrated Current Sensing and AutoTune for 24V applications

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 Drivers with FETs

 
Vs (Min) (V)
Vs (Max) (V)
Number of Full Bridges
RDS(ON) (HS + LS) (mOhms)
RMS Output Current (A)
Peak Output Current (A)
Micro-Stepping Levels
Control I/F
Additional Features
Pin/Package
Rating
Operating Temperature Range (C)
DRV8825 DRV8824 DRV8880 DRV8884 DRV8885 DRV8886
8.2    8.2    6.5    8    8    8   
45    45    45    37    37    37   
2    2    2    2    2    2   
400    1280    630    1400    860    600   
1.8    1.1    1.41    0.7    1    1.4   
2.5    1.6    2.5    1    1.5    2   
32    32    16    16    16    16   
STEP/DIR    STEP/DIR    STEP/DIR    STEP/DIR    STEP/DIR    STEP/DIR   
1/32 Microstepping
P2P w/ DRV8824   
1/32 Microstepping
P2P w/ DRV8825   
AutoTune    Integrated Current Sensing    Integrated Current Sensing    Integrated Current Sensing   
28HTSSOP    28HTSSOP
28VQFN   
28HTSSOP
28WQFN   
24HTSSOP    24HTSSOP    24HTSSOP   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 85    -40 to 85    -40 to 125    -40 to 125    -40 to 125    -40 to 125