2A Stepper Motor Driver With Integrated Current Sense - DRV8886

DRV8886 (ACTIVE)

2A Stepper Motor Driver With Integrated Current Sense

 

Description

The DRV8886 is a stepper motor driver for industrial and consumer end equipment applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8886 is capable of driving up to 2-A full scale or 1.4-A rms output current (24-V and TA = 25°C, dependent on PCB design).

The DRV8886 uses an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The DRV8886 uses an internal fixed off-time PWM current regulation scheme adjustable between slow and mixed decay options.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in different step modes ranging from full-step to 1/16 microstepping. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated nSLEEP pin.

Device protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by the nFAULT pin.

For all available packages, see the orderable addendum at the end of the data sheet.

Features

  • PWM Microstepping Stepper Motor Driver
    • Up to 1/16 Microstepping
    • Non-Circular and Standard ½ Step Modes
  • Integrated Current Sense Functionality
    • No Sense Resistors Required
    • ±6.25% Full-Scale Current Accuracy
  • Slow and Mixed Decay Options
  • 8 to 37-V Operating Supply Voltage Range
  • Low RDS(ON): 550 mΩ HS + LS at 24 V, 25°C
  • High Current Capacity
    • 3-A Peak Per Bridge
    • 2-A Full-Scale Per Bridge
    • 1.4-A rms Per Bridge
  • Fixed Off-Time PWM Current Regulation
  • Simple STEP/DIR Interface
  • Low-Current Sleep Mode (20 μA)
  • Small Package and Footprint
    • 24 HTSSOP PowerPAD Package
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Fault Condition Indication Pin (nFAULT)

All trademarks are the property of their respective owners.

View more

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)
Current Regulation Levels
Control I/F
Additional Features
Pin/Package
Rating
Operating Temperature Range (C)
DRV8886 DRV8821 DRV8823 DRV8824 DRV8825 DRV8880 DRV8884 DRV8885
8    8    8    8.2    8.2    6.5    8    8   
37    32    32    45    45    45    37    37   
2    4    4    2    2    2    2    2   
600    550    550    1280    400    630    1400    860   
1.4    1    1    1.1    1.8    1.41    0.7    1   
2    1.5    1.5    1.6    2.5    2.5    1    1.5   
16    8    8    32    32    16    16    16   
Indexer    Indexer    Serial    Indexer    Indexer    Indexer    Indexer    Indexer   
Integrated current sensing
Dedicated sleep pin   
On-chip Microstepping    SPI Control Interface    1/32 Microstepping
P2P w/ DRV8825   
1/32 Microstepping
P2P w/ DRV8824   
AutoTune
Adaptive blanking time
Configurable off-time PWM
Dedicated Sleep Pin
Torque DAC   
Integrated current sensing
Dedicated sleep pin   
Integrated current sensing
Dedicated sleep pin   
24HTSSOP    48HTSSOP    48HTSSOP    28HTSSOP
28VQFN   
28HTSSOP    28HTSSOP
28WQFN   
24HTSSOP    24HTSSOP   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 125    -40 to 125    -40 to 125