VM

8 to 38 V

nFAULT

ENABLE

LATCH

DIN

CLK

DOUT

DRV8860

8 Channel Serial

Interface

Low-Side Driver

100

200

300

400

500

600

12.5

0

0

Duty Cycle (%)

N = 1

N = 2

N = 4

N = 8

N: Number of outputs active

25.0

37.5

50.0

62.5

75.0

87.5

100.0

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

DRV8860, DRV8860A

SLRS065E – SEPTEMBER 2013 – REVISED NOVEMBER 2015

DRV8860x 38-V 8-Channel Serial Interface Low-Side Driver

1 Features

3 Description

The DRV8860 provides an 8-channel low side driver

1

•

8-Channel Protected Low-side Driver

with overcurrent protection and open/shorted load

–

Eight NMOS FETs with Overcurrent Protection

detection. It has built-in diodes to clamp turn-off

–

Integrated Inductive Catch Diodes

transients generated by inductive loads, and can be

used to drive unipolar stepper motors, DC motors,

–

Serial Interface

relays, solenoids, or other loads.

–

Open/Short Load Detection (DRV8860 only)

The PWP package can supply up to 330 mA × 8

–

Configurable 100% Output Timing

channel and The PW package can supply up to 200

–

Configurable PWM Duty Cycle

mA × 8 channel continuous output current. A single

•

Continuous Current Driving Capability

channel can deliver up to 560 mA continuous output

current.

–

560 mA (Single Channel on) PW and PWP

–

200 mA (8 Channels on) PW

A serial interface is provided to control the DRV8860

output drivers, configure internal setting register and

–

330 mA (8 Channels on) PWP

read the fault status of each channel. DRV8860

–

Support Parallel Configuration

devices can be daisy-chained together to use a single

•

8 V to 38 V Supply Voltage Range

serial interface. Energizing-time and holding-PWM-

Duty cycles are configurable through serial interface

•

Input Digital Noise Filter for Noise Immunity

as well. These functions allow for cooler running than

•

Internal Data Read Back Capability for Reliable

always-on solutions.

Control

Internal

shutdown

functions

are

provided

for

•

Protection and Diagnostic Features

overcurrent

protection,

short-circuit

protection,

–

Overcurrent Protection (OCP)

undervoltage

lockout,

and

overtemperature.

–

Open Load Detection (OL)

DRV8860A does not include open load detection.

Fault information for each channel can be read out

–

Overtemperature Shutdown (OTS)

through serial interface and indicated by an external

–

Undervoltage Lockout (UVLO)

fault pin.

–

Individual Channel Status Report

Device Information(1)

–

Fault Condition Alarm

PART NUMBER

PACKAGE

BODY SIZE (NOM)

2 Applications

TSSOP (16)

5.00 mm × 6.40 mm

DRV8860

HTSSOP (16)

5.00 mm × 4.40 mm

•

Relays, Unipolar Stepper Motors

DRV8860A

TSSOP (16)

5.00 mm × 6.40 mm

•

Solenoids, Electromagnetic Drivers

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

•

General Low-side Switch Applications

the end of the datasheet.

•

LED driver with dimmer functionality (DRV8860A)

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.