DRV8313RHH

Overview

The DRV8313RHH is a three-phase brushless DC motor driver featuring three individually controllable half-H-bridge drivers. It operates within an 8V to 60V supply voltage range and delivers up to 2.5A peak output current per channel at 24V and 25°C, with an RMS capability of 1.75A under proper PCB thermal conditions. The device integrates N-channel power MOSFETs and includes dedicated ground pins for low-side current sensing. It incorporates a built-in 3.3V LDO regulator and offers comprehensive protection against overcurrent, short circuits, undervoltage lockout, and overtemperature.

Feature Summary

• Provides three independently controllable half-H-bridge drivers suitable for BLDC motors
• Integrates dedicated ground terminals on each output for external low-side current sensing
• Includes internal shutdown functions for overcurrent, short circuit, UVLO, and overtemperature protection
• Features a built-in 3.3V low-dropout regulator for logic power

Applications

• HVAC motors
• Consumer products
• Office automation equipment
• Factory automation and robotics

Procurement Notes

Verify the specific suffix RHH corresponds to the VFQFN-36 package variant when sourcing. Confirm RoHS compliance and lead time requirements directly with authorized distributors or Texas Instruments. Ensure the ordering information matches the required shipping configuration, as packaging types may vary by supplier channel.

Selection Notes

Select this component for applications requiring integrated control and power stages for three-phase motors. The VFQFN-36 package supports surface mount installation. Consider thermal management requirements for the PCB to sustain the specified RMS current ratings. Verify compatibility with microcontroller PWM interfaces and ensure adequate heat dissipation for the operating environment.

Part Context

The DRV8313RHH belongs to the DRV8313 family of triple half-H bridge drivers from Texas Instruments. This series is designed to simplify the design of compact motor drive modules by integrating power MOSFETs and gate drivers. The RHH designation specifically identifies the 36-pin VFQFN package version, distinguishing it from other package options like HTSSOP available in the same product line.

Replacement Considerations

MS8313 is documented as a pin-to-pin compatible alternative offering direct substitution capabilities.