TIDRV8871DDAR

Overview

The DRV8871DDAR is a brushed DC motor driver designed for a wide voltage range of 6.5V to 45V and capable of delivering up to 3.6A peak output current. It features an integrated H-bridge with NMOS technology and a PWM interface for simplified speed and direction control. A key feature is its ability to perform current regulation without the need for an external sense resistor, reducing board space and component count.

Why Choose This Part

This driver simplifies PCB design by integrating current sensing and regulation, eliminating the high-power shunt resistor usually required. It offers robust protection features including VM undervoltage lockout, overcurrent protection, and thermal shutdown with automatic fault recovery. The low-power sleep mode, drawing only 10uA, makes it suitable for power-sensitive applications.

Applications

Getting Started

To evaluate this part, use the DRV8871EVM evaluation module which provides a complete hardware platform for testing. Connect a PWM signal from any MCU (0V to 5.5V logic) to the IN1 and IN2 pins to control motor direction and speed. Ensure the PowerPad is soldered to a large ground plane for effective heat dissipation during high-current operation.

DRV8871 Family

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