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 device 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-and-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 overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature.

The DRV8811 device is packaged in a PowerPAD™ 28-pin HTSSOP package with thermal pad.

Features

  • Pulse Width Modulation (PWM) Microstepping Motor Driver
    • Up to 1/8-Step Microstepping Indexer
    • 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 Compatible With the DRV8818
  • Thermally Enhanced Surface Mount Package
  • Protection Features:
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)

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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)
DRV8811
8   
38   
2   
1000   
1.4   
1.9   
8   
STEP/DIR   
1/8 Microstepping
P2P w/ DRV8818   
28HTSSOP   
Catalog   
-40 to 85   

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