DRV8848_16 Datasheet, PDF (8/27 Pages) Texas Instruments – Dual H-Bridge Motor Driver

DRV8848
SLLSEL7A – OCTOBER 2014 – REVISED NOVEMBER 2015
7 Detailed Description
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7.1 Overview
The DRV8848 is an integrated motor driver solution for two DC motors or a bipolar stepper motor. The device
integrates two H-bridges that use NMOS low-side drivers and PMOS high-side drivers and current sense
regulation circuitry. The DRV8848 can be powered with a supply range between 4 to 18 V and is capable of
providing an output current to 1-A rms.
A simple PWM interface allows easy interfacing to the controller circuit.
The current regulation uses a fixed off-time (t_OFF) PWM scheme. The current regulation trip point is controlled by
the value of the sense resistor and the voltage applied to VREF.
A low-power sleep mode is included, which allows the system to save power when not driving the motor.
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