DRV8842_15 Datasheet, PDF (7/27 Pages) Texas Instruments – DC Motor Driver IC

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7 Detailed Description
DRV8842
SLVSAB8F – MAY 2010 – REVISED DECEMBER 2015
7.1 Overview
The DRV8842 device 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 DRV8842 device can be powered from a single voltage supply
from 8.2 V to 45 V, and is capable of providing a continuous output current up to 5 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.
The integrated protection circuits allow 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.
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