1 Features
1• 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)

2 Applications
• Printers
• Scanners
• Office Automation Machines
• Gaming Machines
• Factory Automation
• Robotics

3 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.