DRV8885 1.5A Stepper Motor Driver with 1/16 Microstepping and Integrated Current Sensing (STEP/DIR Ctrl) | TI.com

DRV8885 (ACTIVE)

1.5A Stepper Motor Driver with 1/16 Microstepping and Integrated Current Sensing (STEP/DIR Ctrl)

 

Recommended alternative parts

  • DRV8886  -  The DRV8886 has the same pinout and is higher current
  • DRV8884  -  The DRV8884 has the same pinout and is lower current

Description

The DRV8885 is a stepper motor driver for industrial equipment applications. The device has two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sense. The DRV8885 is capable of driving up to 1.5 A full scale or 1.0 A rms output current (depending on proper PCB ground plane for thermal dissipation and at 24 V and TA = 25°C).

The DRV8885 integrated current sense functionality eliminates the need for two external sense resistors.

The STEP/DIR pins provide a simple control interface. The device can be configured in full-step up to 1/16 step modes. 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 an nFAULT pin.

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
  • 8.0- to 37-V Operating Supply Voltage Range
  • Low RDS(ON): 0.86 Ω HS + LS at 24 V, 25°C
  • High Current Capacity
    • 1.5-A Full Scale per Bridge
    • 1.0-A rms per Bridge
  • Fixed Off-Time PWM Chopping
  • Simple STEP/DIR Interface
  • Low-Current Sleep Mode (20 µA)
  • Small Package and Footprint
    • 24 HTSSOP PowerPAD™ Package
    • 28 WQFN Package
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Fault Condition Indication Pin (nFAULT)

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Parametrics

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Part number Order Vs (Min) (V) Vs (Max) (V) Control I/F Micro-stepping levels Peak output current (A) RDS(ON) (HS + LS) (mOhms) Operating temperature range (C) Approx. price (US$) Rating Package Group
DRV8885 Order now 8     37     STEP/DIR     16     1.5     860     -40 to 125     1.44 | 1ku     Catalog     HTSSOP | 24
WQFN | 28    
DRV8824 Order now 8.2     45     STEP/DIR     32     1.6     1280     -40 to 85     1.50 | 1ku     Catalog     HTSSOP | 28
VQFN | 28    
DRV8825 Order now 8.2     45     STEP/DIR     32     2.5     400     -40 to 85     1.60 | 1ku     Catalog     HTSSOP | 28    
DRV8880 Order now 6.5     45     STEP/DIR     16     2.5     630     -40 to 125     1.57 | 1ku     Catalog     HTSSOP | 28
WQFN | 28    
DRV8884 Order now 8     37     STEP/DIR     16     1     1400     -40 to 125     1.30 | 1ku     Catalog     HTSSOP | 24
WQFN | 28    
DRV8886 Order now 8     37     STEP/DIR     16     2     550     -40 to 125     1.51 | 1ku     Catalog     HTSSOP | 24
WQFN | 28