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DRV8870DDAR

TIDRV8870DDAR

Texas Instruments
Unipolar Motor Driver NMOS PWM 8-SO PowerPad
Active10,135 in stock
Datasheet Digi-Key Compare Prices

Overview

The DRV8870DDAR is a brushed DC motor driver designed for a wide operating range of 6.5V to 45V with a peak output current capability of 3.6A. It features an integrated H-bridge and current regulation logic that uses an external sense resistor to limit motor inrush and stall currents.

Why Choose This Part

This driver simplifies design by integrating overcurrent protection, thermal shutdown, and undervoltage lockout directly into the 8-pin PowerPad package. The adjustable current limit reduces system costs by eliminating the need for bulky external current-limiting components.

Applications

Industrial Brushed DC Motors
Driving bidirectional DC motors in factory automation equipment requiring high voltage overhead up to 45V.
Robotic Actuators
Precise control of movement in mobile robots and robotic arms using standard PWM interfaces.
Solenoid Drivers
Driving high-current inductive loads like solenoids or valves with integrated protection circuits.
Smart Home Appliances
Managing small motors in electronic locks, blinds, or kitchen appliances where a low-power sleep mode is required.

Key Specifications

Function Driver - Fully Integrated, Control and Power Stage
Interface PWM
Technology NMOS
Applications DC Motors, General Purpose, Stepper Motors
Mounting Type Surface Mount
Package / Case 8-PowerSOIC (0.154", 3.90mm Width)
Voltage - Load 6.5V ~ 45V
Current - Output 3.6A
Voltage - Supply 6.5V ~ 45V
Motor Type - AC, DC Brushed DC
Motor Type - Stepper Unipolar
Output Configuration Half Bridge (2)
Operating Temperature -40degC ~ 150degC (TJ)
Supplier Device Package 8-SO PowerPad

Getting Started

To evaluate this part, use the DRV8870EVM evaluation module which provides a complete hardware platform for testing. Connect the logic inputs (IN1, IN2) to a microcontroller PWM source and ensure the PowerPad is soldered to a large copper plane for effective heat dissipation.

DRV8870 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Function Stock
DRV8870DDAR (this part) Driver - Fully Int.. 10,135
DRV8870EVM Motor Controller/D.. 16

Also Consider

DRV8871 TITexas Instruments - Offers similar performance but uses a single external resistor to set the current limit instead of a PWM reference.
TB6612FNG Toshiba - A dual-channel driver suitable for smaller motors with lower voltage requirements and a more compact footprint.

Categories

Motor & Motion Control > H-Bridge & DC Motor Drivers Industrial & Automation > Motor Control & Drives Industrial & Automation > Robotics Components