PWM

nFAULT

4 to 18 V

DRV8848

Dual

H-Bridge

Motor

Driver

1 A

1 A

VREF

PWM

DC

M

DC

M

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

DRV8848

SLLSEL7 – OCTOBER 2014

DRV8848 Dual H-Bridge Motor Driver

1 Features

3 Description

The DRV8848 provides a dual H-bridge motor driver

1

•

Dual H-Bridge Motor Driver

for

home

appliances

and

other

mechatronic

–

Single/Dual Brushed DC

applications. The device can be used to drive one or

–

Stepper

two DC motors, a bipolar stepper motor, or other

loads.

A

simple

PWM

interface

allows

easy

•

PWM Control Interface

interfacing to controller circuits.

•

Optional Current Regulation With 20-

μs Fixed Off-

The output block of each H-bridge driver consists of

Time

N-channel

and

P-channel

power

MOSFETs

•

High Output Current per H-Bridge

configured as full H-bridges to drive the motor

–

2-A Maximum Driver Current at 12 V and

windings. Each H-bridge includes circuitry to regulate

the winding current using a fixed off-time chopping

scheme. The DRV8848 is capable of driving up to 2

–

Parallel Mode Available Capable of 4-A

A of current from each output or 4 A of current in

Maximum Driver Current at 12 V and

parallel mode (with proper heat sinking, at 12 V and

•

4- to 18-V Operating Supply Voltage Range

A low-power sleep mode is provided, which shuts

•

Low-Current 3-µA Sleep Mode

down internal circuitry to achieve very-low quiescent

•

Thermally-Enhanced Surface Mount Package

current draw. This sleep mode can be set using a

•

Protection Features

dedicated nSLEEP pin.

–

VM Undervoltage Lockout (UVLO)

Internal protection functions are provided for UVLO,

–

Overcurrent Protection (OCP)

OCP, short-circuit protection, and overtemperature.

Fault conditions are indicated by a nFAULT pin.

–

Thermal Shutdown (TSD)

–

Fault Condition Indication Pin (nFAULT)

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

2 Applications

DRV8848

HTSSOP (16)

5.00 mm × 6.40 mm

•

Appliances

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

•

General Brushed and Stepper Motors

the end of the data sheet.

•

Printers

4 Simplified Schematic

1

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.