Thermal

Shut down

OUT1

OUT1

OUT2

OUT2

GND

GND

Step

Motor

VM

VM

ISEN

ISEN

ENBL

I0

I2

I3

VREF

VM

Internal

Reference &

Regs

Int. VCC

nFAULT

Control

Logic

nRESET

Motor

Driver

PHASE

nSLEEP

VM

V3P3OUT

3.3V

LS Gate

Drive

+

+

-

-

3.3V

VREF

I1

I4

DCM

VM

DECAY

Charge

Pump

0.1 F

m

0.01 F

m

VM

CP1

CP2

VCP

HS Gate

Drive

1MW

DRV8828

SLVSA11G – OCTOBER 2009 – REVISED NOVEMBER 2015

www.ti.com

7 Detailed Description

7.1 Overview

The DRV8828 is an integrated motor driver solution for printers, scanners, and other automated equipment

applications. The device integrates a single NMOS H-bridge, charge pump, current sense, current regulation, and

device protection circuitry. The DRV8828 can be powered from a single voltage supply between 8.2 and 45 V

and is capable of providing a continuous output current up to 3 A.

A simple PHASE/ENBL interface allows for easy interfacing to an external controller. A 5 bit current control

scheme allows for up to 32 discrete current levels. The current regulation method is adjustable between slow,

mixed, and fast decay.

Integrated protection circuits allows the device to monitor and protect against overcurrent, undervoltage, and

overtemperature faults which are all reported through a fault indication pin (nFAULT). A low power sleep mode is

integrated which allows the system to lower power consumption when not driving the motor.

7.2 Functional Block Diagram

8

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