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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fdrv8434a”>View Datasheet

Texas Instruments DRV8434A Stepper Drivers

Texas Instruments DRV8434A Stepper Drivers are fully integrated with two N-channel power MOSFET H-bridge drivers, a micro-stepping indexer, and integrated current sensing. The DRV8434A can drive up to 2.5A full-scale output current (dependent on PCB thermal design). The DRV8434A Stepper Drivers with integrated current sense is designed for industrial and consumer applications.

Features

  • PWM Micro-stepping stepper motor driver
    • Simple STEP/DIR interface
    • Up to 1/256 micro-stepping indexer
  • Integrated current sense functionality
    • No sense resistors required
    • ±4% Full-scale current accuracy
  • Smart tune ripple control decay
  • Stall detection using GPIO pins
  • 4.5 to 48V Operating supply voltage range
  • 330mΩ HS + LS at 24V, 25°C Low RDS(ON)
  • 2.5A Full-scale, 1.8A rms high current capacity
  • Supports 1.8V, 3.3V, 5.0V logic inputs
  • Low-current sleep mode (2μA)
  • Spread-spectrum clocking for low EMI
  • Small package and footprint
  • Protection features
    • VM Undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Sensorless stall detection
    • Open load detection (OL)
    • Thermal shutdown (OTSD)
    • Fault condition output (nFAULT)

Applications

  • Printers and scanners
  • ATM and money handling machines
  • Textile machines
  • Stage lighting equipment
  • Office and home automation
  • Factory automation and robotics
  • Medical applications
  • 3D Printers

Simplified Schematic

Schematic - Texas Instruments DRV8434A Stepper Drivers

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Texas Instruments DRV8434A Stepper Drivers