IN1

IN2

Controller

6.5 to 45 V

DRV8872

Brushed DC

Motor Driver

3.6 A

BDC

ISEN

nFAULT

Current

Regulation

Fault

Protection and

Reporting

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

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.

DRV8872

SLVSCZ0B – AUGUST 2015 – REVISED JANUARY 2016

DRV8872 3.6-A Brushed DC Motor Driver With Fault Reporting (PWM Control)

1

1 Features

1

•

H-Bridge Motor Driver

–

Drives One DC Motor, One Winding of a

Stepper Motor, or Other Loads

•

Wide 6.5-V to 45-V Operating Voltage

•

565-m

•

3.6-A Peak Current Drive

•

PWM Control Interface

•

Integrated Current Regulation

•

Low-Power Sleep Mode

•

Fault Status Output Pin

•

Small Package and Footprint

–

8-Pin HSOP With PowerPAD™

–

4.9 × 6.0 mm

•

Integrated Protection Features

–

VM Undervoltage Lockout (UVLO)

–

Overcurrent Protection (OCP)

–

Thermal Shutdown (TSD)

–

Fault Reporting (nFAULT)

–

Automatic Fault Recovery

2 Applications

•

Printers

•

Appliances

•

Industrial Equipment

•

Other Mechatronic Applications

3 Description

The DRV8872 is a brushed-DC motor driver for

printers, appliances, industrial equipment, and other

small machines. Two logic inputs control the H-bridge

driver, which consists of four N-channel MOSFETs

that can control motors bidirectionally with up to 3.6-A

peak

current.

The

inputs

can

be

pulse-width

modulated (PWM) to control motor speed, using a

choice of current-decay modes. Setting both inputs

low enters a low-power sleep mode.

The DRV8872 features integrated current regulation,

based on an internal reference voltage and the

voltage on pin ISEN, which is proportional to motor

current through an external sense resistor. The ability

to limit current to a known level can significantly

reduce the system power requirements and bulk

capacitance needed to maintain stable voltage,

especially for motor startup and stall conditions.

The device is fully protected from faults and short

circuits, including under-voltage (UVLO), over-current

(OCP), and over-temperature (TSD). Faults are

communicated by pulling the nFAULT output low.

When the fault condition is removed, the device

automatically resumes normal operation.

Device Information (1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

DRV8872

HSOP (8)

4.90 mm × 6.00 mm

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

the end of the data sheet.

SPACE

Simplified Schematic

H-Bridge States