1.9A Bipolar Stepper Motor Driver with On-Chip 1/8 Microstepping Indexer (Step/Dir Ctrl) - DRV8811

DRV8811 (ACTIVE)

1.9A Bipolar Stepper Motor Driver with On-Chip 1/8 Microstepping Indexer (Step/Dir Ctrl)

Description

The DRV8811 provides an integrated stepper motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, as well as microstepping indexer logic to control a stepper motor.

The output driver block consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings.

A simple STEP/DIR interface allows easy interfacing to controller circuits. Step mode pins allow for configuration of the motor in full-step, half-step, quarter-step, or eighth-step modes. Decay mode and PWM off time are programmable.

Internal shutdown functions are provided for over current protection, short circuit protection, under-voltage lockout and overtemperature.

The DRV8811 is packaged in a PowerPAD 28-pin HTSSOP package with thermal pad (Eco-friendly: RoHS and no Sb/Br).

Features

  • Pulse Width Modulation (PWM) Microstepping Motor Driver
    • Built-In Microstepping Indexer
    • Up to 1/8 Microstepping
    • Step and Direction Control
    • Programmable Mixed Decay, Blanking, and Off-Time
  • Up to 1.9-A Current Per Winding
  • Low 1.0-Ω (HS+LS) MOSFET RDS(ON) (25°C)
  • 8-V to 38-V Operating Supply Voltage Range
  • Pin to Pin with the DRV8818
  • Thermally Enhanced Surface Mount Package
  • Protection Features:
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Fault Condition Indication Pin (nFAULT)
  • All other trademarks are the property of their respective ownersPowerPAD Is a trademark of Texas InstrumentsPowerPAD Is a trademark of Texas InstrumentsPowerPAD Is a trademark of Texas InstrumentsPowerPAD Is a trademark of Texas InstrumentsPowerPAD Is a trademark of Texas Instruments

  • APPLICATIONS
    • Printers
    • Scanners
    • Office Automation Machines
    • Gaming Machines
    • Factory Automation
    • Robotics
  • View more

    Parametrics Compare all products in Stepper Drivers with FETs

     
    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
    # of half-bridges
    Pin/Package
    Rating
    Operating Temperature Range (C)
    Approx. Price (US$)
    DRV8811 DRV8818 DRV8821
    8     8     8    
    38     35     32    
    2     2     4    
    1000     370     550    
    1.4     1.75     1    
    1.9     2.5     1.5    
    8     8     8    
    Indexer     Indexer     Indexer    
    1/8 Microstepping
    P2P w/ DRV8818    
    1/8 Microstepping
    P2P w/ DRV8811    
    On-chip Microstepping    
    4     4      
    28HTSSOP     28HTSSOP     48HTSSOP    
    Catalog     Catalog     Catalog    
    -40 to 85     -40 to 85     -40 to 85    
    1.80 | 1ku     2.25 | 1ku     2.00 | 1ku    

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