STEP

Step Size

Decay Mode

8 to 37 V

M

+

±

DRV8886

Current Sense

Stepper Motor

Driver

2 A

2 A

1/16 µstep

DIR

nFAULT

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

DRV8886

SLVSDA4 – JANUARY 2017

DRV8886 2-A Stepper Motor Driver With Integrated Current Sense

1

1 Features

1

•

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

•

•

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)

2 Applications

•

Bipolar Stepper Motors

•

Multi-Function Printers and Scanners

•

Laser Beam Printers

•

3D Printers

•

Automatic Teller and Money Handling Machines

•

Video Security Cameras

•

Office Automation Machines

•

Factory Automation and Robotics

3 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

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.

Device Information (1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

DRV8886

HTSSOP (24)

7.80 × 4.40 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic