DRV8850

www.ti.com

SLVSCC0A – NOVEMBER 2013 – REVISED JANUARY 2014

Low-Voltage H-Bridge IC With LDO Voltage Regulator

1

FEATURES

DESCRIPTION

The DRV8850 device provides a motor driver plus

2

•

H-Bridge Motor Driver

LDO

voltage

regulator

solution

for

consumer

–

Drives a DC Motor, One Winding of a

products, toys, and other low-voltage or battery-

Stepper Motor, or Other Loads

powered motion-control applications. The device has

–

Low MOSFET On-Resistance: 45 m

Ω per

one H-bridge driver to drive a DC motor, a voice-coil

actuator, one winding of a stepper motor, a solenoid,

FET

or other devices. The output driver block consists of

•

5-A Continuous 8-A Peak-Drive Current

N-channel power MOSFETs configured as an H-

•

Internal Current Sensing With Current Sense

bridge to drive the load. An internal charge pump

Output

generates the needed gate-drive voltages.

•

2 to 5.5-V Operating Supply Voltage Range

The DRV8850 device supplies up to 5 A of

•

Overvoltage and Undervoltage Lockout

continuous output current (with proper PCB heat

sinking) and up to 8-A peak current. It operates on a

•

Low-Power Sleep Mode

supply voltage from 2.0 to 5.5 V.

•

100-mA Isolated Low-Dropout (LDO) Voltage

Regulator

A low-dropout linear voltage regulator is integrated

with

the

motor

driver

to

supply

power

to

•

24-Pin QFN Package

microcontrollers or other circuits. The LDO voltage

•

24-Pin HTSSOP Package

regulator can be active in device sleep mode, so that

the driver may be shut down without removing power

APPLICATIONS

to

any

devices

powered

by

the

LDO

voltage

regulator.

•

Battery-Operated Applications With High

Startup Torque, such as:

Internal

shutdown

functions

provide

overcurrent,

short-circuit,

undervoltage,

overvoltage,

and

–

Personal Hygiene (Electric Toothbrushes,

overtemperature protection. In addition, the device

Shavers)

also has a built-in current sensing for accurate

–

Toys

current measurement.

–

RC Helicopters and Cars

The DRV8850 device is packaged in a 24-pin

–

Robotics

HTSSOP (7.7 mm × 4.4 mm) or QFN (3.5-mm × 5.5-

mm) package with PowerPAD™ (Eco-friendly: RoHS

and no Sb/Br).

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2013–2014, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.