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DRV8818PWPR

2.5A Bipolar Stepper Motor Driver with On-Chip 1/8 Microstepping Indexer (Step/Dir Ctrl)

Packaging

Package | PIN: PWP | 28
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $2.99
10-24 $2.69
25-99 $2.51
100-249 $2.25
250-499 $2.10
500-749 $1.83
750-999 $1.58
1000+ $1.55

Features

  • Pulse Width Modulation (PWM) Microstepping Motor Driver
    • Built-In Microstepping Indexer
    • Up to 8 Microsteps/Step
    • Step and Direction Control
    • Programmable Mixed Decay, Blanking, and Off Time
  • Up to 2.5-A Current Per Winding
  • Low 0.37-Ω (HS + LS) MOSFET RDS(ON) (25°C)
  • 8-V to 35-V Operating Supply Voltage Range
  • Pin to Pin Upgrade for DRV8811 With Lower RDS(ON)
  • Thermally-Enhanced Surface Mount Package
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)

Texas Instruments  DRV8818PWPR

The DRV8818 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 for each consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings.

A simple STEP/DIRECTION interface allows easy interfacing to controller circuits. The 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 DRV8818 is packaged in a 28-pin HTSSOP package with PowerPAD.