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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. ADVANCE INFORMATION for pre-production products; subject to

change without notice.

DRV8428E, DRV8428P

SLOSE51 – JUNE 2020

DRV8428E/P Dual H-Bridge Motor Drivers With Integrated Current Sense and Smart Tune

Technology

1

1 Features

1

•

Dual H-bridge motor driver

–

One bipolar stepper motor

–

Dual bidirectional brushed-DC motors

–

Four unidirectional brushed-DC motors

•

Integrated current sense functionality

–

No sense resistors required

–

±5% Full-scale current accuracy

•

4.2- to 33-V Operating supply voltage range

•

Multiple control interface options

–

PHASE/ENABLE

–

PWM

•

Smart tune decay technology, and mixed decay

options

•

•

Current Capacity Per Bridge: 1.7-A peak, 1-A Full-

Scale, 0.7-A rms

•

Configurable Off-Time PWM Chopping

–

7, 16 or 32 μs

•

Supports 1.8-V, 3.3-V, 5.0-V logic inputs

•

Low-current sleep mode (2 µA)

•

Spread spectrum clocking for low electromagnetic

interference (EMI)

•

Inrush current limiting in brushed-DC applications

•

Small package and footprint

•

Protection features

–

VM undervoltage lockout (UVLO)

–

Overcurrent protection (OCP)

–

Thermal shutdown (OTSD)

2 Applications

•

Brushed DC Motors

•

Printers and scanners

•

Currency counters, and EPOS

•

Office and home automation

•

Factory automation and robotics

•

Small home appliances

•

Sewing Machines

•

Vacuum, humanoid, and toy robotics

•

Smart Meters

•

Servo Motors and Actuators

3 Description

The DRV8428E/P devices are dual H-bridge motor

drivers for a wide variety of industrial applications.

The devices can be used for driving two DC motors,

or a bipolar stepper motor. The output stage of the

driver

consists

of

N-channel

power

MOSFETs

configured as two full H-bridges, current sensing and

regulation, and protection circuitry. The integrated

current sensing uses an internal current mirror

architecture, removing the need for a large power

shunt resistor, saving board area and reducing

system cost. A low-power sleep mode is provided to

achieve ultra- low quiescent current draw by shutting

down most of the internal circuitry. Internal protection

features are provided for supply undervoltage lockout

(UVLO),

output

overcurrent

(OCP),

and

device

overtemperature (TSD). The DRV8428E/P is capable

of driving up to 1-A full scale or 0.7-A rms output

current per H-bridge (dependent on PCB design).

Table 1. Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

DRV8428EPWPR

HTSSOP (16)

5mm x 4.4mm

DRV8428ERTER

VQFN (16)

3.0mm x 3.0mm

DRV8428EDYYR

TSOT (16)

4.2mm x 3.26mm

DRV8428PPWPR

HTSSOP (16)

5mm x 4.4mm

DRV8428PRTER

VQFN (16)

3.0mm x 3.0mm

DRV8428PDYYR

TSOT (16)

4.2mm x 3.26mm

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

the end of the data sheet.

Figure 1. DRV8428E Simplified Schematic