OUTA

Pre-

drive

OUTB

Pre-

Drive

SENSE

VCP

CP2

CP1

Charge Pump

0.1 µF

+

0.1 µF

0.1 µF

VPROPI

BDC

Logic

x5

IN2

EN1

EN2

nSLEEP

nFAULT

IN1

PPAD

GND

GND

Temperature

Sensor

Undervoltage

Regulators

DRV8801A-Q1

SLVSC79A – JUNE 2014 – REVISED SEPTEMBER 2014

www.ti.com

7 Detailed Description

7.1 Overview

The DRV8801A-Q1 device is an integrated motor driver solutions for brushed-DC motors. The device integrates

a DMOS H-bridge and current sense and protection circuitry. The device can be powered with a supply voltage

between 6.5 V and 36 V, and is capable of providing an output current up to 2.8-A peak.

A simple PHASE and ENABLE interface allows control of the motor speed and direction.

A shunt amplifier output is provided for accurate current measurements by the system controller. The VPROPI

pin outputs a voltage that is five-times the voltage seen at the SENSE pin.

A low-power sleep mode is included which allows the system to save power when not driving the motor.

7.2 Functional Block Diagram

8

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