1.9A Bipolar Stepper Motor Driver with On-Chip 1/8 Microstepping Indexer (Step/Dir Ctrl) - DRV8811


1.9A Bipolar Stepper Motor Driver with On-Chip 1/8 Microstepping Indexer (Step/Dir Ctrl)


The DRV8811 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. Pins allow 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 DRV8811 is packaged in a PowerPAD 28-pin HTSSOP package with thermal pad (Eco-friendly: RoHS and no Sb/Br).


  • Pulse Width Modulation (PWM) Microstepping Motor Driver
    • Built-In Microstepping Indexer
    • Up to 1.9-A Current Per Winding
    • Three-Bit Winding Current Control Allows up to Eight
      Current Levels
    • Low MOSFET On-Resistance
  • 8-V to 38-V Operating Supply Voltage Range
  • Thermally Enhanced Surface Mount Package
    • Printers
    • Scanners
    • Office Automation Machines
    • Gaming Machines
    • Factory Automation
    • Robotics

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Parametrics Compare all products in Stepper Driver

Vs (Min) (V)
Vs (Max) (V)
# of Full Bridges
RDS(ON) (HS + LS) (mOhms)
RMS Output Current (A)
Peak Output Current (A)
Current Regulation Levels
Control I/F
Additional Features
# of half-bridges
Operating Temperature Range (C)
Approx. Price (US$)
DRV8811 DRV8818 DRV8821
8     8     8    
38     35     32    
2     2     4    
1000     370     550    
1.4     1.75     1    
1.9     2.5     1.5    
8     8     8    
Indexer     Indexer     Indexer    
1/8 Microstepping
P2P w/ DRV8818    
1/8 Microstepping
P2P w/ DRV8811    
On-chip Microstepping    
4     4      
Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85    
28HTSSOP     28HTSSOP     48HTSSOP    
1.80 | 1ku     2.25 | 1ku     2.00 | 1ku    

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