DRV8886 2A Stepper Motor Driver With Integrated Current Sense | TI.com

DRV8886 (ACTIVE)

2A Stepper Motor Driver With Integrated Current Sense

 

Recommended alternative parts

  • DRV8886AT  -  The DRV8886AT has the same pinout with adaptive decay mode
  • DRV8885  -  The DRV8885 has the same pinout and is lower current

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.

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
    • 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
DRV8886 Order now 8     37     STEP/DIR     16     2     550     -40 to 125     1.51 | 1ku     Catalog     HTSSOP | 24
WQFN | 28    
DRV8821 Order now 8     32     STEP/DIR     8     1.5     550     -40 to 85     2.00 | 1ku     Catalog     HTSSOP | 48    
DRV8823 Order now 8     32     Serial     8     1.5     550     -40 to 85     2.00 | 1ku     Catalog     HTSSOP | 48    
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    
DRV8885 Order now 8     37     STEP/DIR     16     1.5     860     -40 to 125     1.44 | 1ku     Catalog     HTSSOP | 24
WQFN | 28