2A Stepper Motor Driver with AutoTune (PWM or PH/EN Ctrl) - DRV8881

DRV8881 (ACTIVE)

2A Stepper Motor Driver with AutoTune (PWM or PH/EN Ctrl)

 

Description

The DRV8881 is a bipolar stepper or brushed-DC motor driver for industrial applications. The device output stage consists of two N-channel power MOSFET H-bridge drivers. The DRV8881 is capable of driving up to 2.5-A peak current or 1.4-A rms current per H-bridge (with proper PCB ground plane for thermal dissipation and at 24 V and TA = 25°C).

AutoTune™ automatically tunes motors for optimal current regulation performance and compensates for motor variation and aging effects. AutoTune is available on the DRV8881E. Additionally, slow, fast, and mixed decay modes are available.

The PH/EN (DRV8881E) or PWM (DRV8881P) pins provide a simple control interface. An internal sense amplifier allows for adjustable current control. A low-power sleep mode is provided for very-low quiescent current standby using a dedicated nSLEEP pin.

Internal protection functions are provided for undervoltage, charge pump faults, overcurrent, short-circuits, and overtemperature. Fault conditions are indicated by a nFAULT pin.

Features

  • Dual H-Bridge Motor Driver
    • Bipolar Stepper Motor Driver
    • Single or Dual Brushed-DC Motor Driver
  • 6.5- to 45-V Operating Supply Voltage Range
  • Two Control Interface Options
    • PHASE/ENABLE (DRV8881E)
    • PWM (DRV8881P)
  • Multiple Decay Modes to Support Any Motor
    • AutoTune™ (DRV8881E Only)
    • Mixed Decay
    • Slow Decay
    • Fast Decay
  • Adaptive Blanking Time for Smooth Motion
  • Parallel Mode Operation (DRV8881P Only)
  • Configurable Off-Time PWM Chopping
    • 10, 20, or 30 µs Off-Time
  • 3.3-V, 10-mA LDO Regulator
  • Low-Current Sleep Mode (28 µA)
  • Small Package and Footprint
    • 28 HTSSOP (PowerPAD)
    • 28 WQFN (PowerPAD)
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Automatic OCP Retry
    • Thermal Shutdown (TSD)
    • Fault Condition Indication Pin (nFAULT)

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Parametrics Compare all products in Stepper Drivers with FETs

 
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
Pin/Package
Rating
Operating Temperature Range (C)
Approx. Price (US$)
DRV8881 DRV8880
6.5    6.5   
45    45   
2    2   
630    630   
1.41    1.41   
2.5    2.5   
  16   
PWM, PH/EN    Indexer   
AutoTune
Adaptive blanking time
Configurable off-time PWM
Dedicated Sleep Pin
Higher Microstepping with External Reference
Outputs can be paralleled   
AutoTune
Adaptive blanking time
Configurable off-time PWM
Dedicated Sleep Pin
Torque DAC   
28HTSSOP
28WQFN   
28HTSSOP
28WQFN   
Catalog    Catalog   
-40 to 125    -40 to 125   
1.60 | 1ku    1.92 | 1ku   

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