DRV8818 2.5A Bipolar Stepper Motor Driver with On-Chip 1/8 Microstepping Indexer (Step/Dir Ctrl) | TI.com

DRV8818
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
2.5A Bipolar Stepper Motor Driver with On-Chip 1/8 Microstepping Indexer (Step/Dir Ctrl)

2.5A Bipolar Stepper Motor Driver with On-Chip 1/8 Microstepping Indexer (Step/Dir Ctrl) - DRV8818
Datasheet
 

Recommended alternative parts

  • DRV8886  -  The DRV8886 includes Integrated Current Sensing for 24V applications

Description

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.

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)

Parametrics

Compare all products in Stepper motor drivers Email Download to Excel
Part number Order Number of full bridges Vs (Min) (V) Vs (Max) (V) Peak output current (A) Control mode Control interface Micro-stepping levels Features Package size: mm2:W x L (PKG) RDS(ON) (HS + LS) (mOhms) Approx. price (US$)
DRV8818 Order now 2     8     35     3.5     STEP/DIR     Hardware (GPIO)     8     Current Regulation     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)     370     1.55 | 1ku