DRV8323HRTAR

Overview

The DRV8323HRTAR is a three-phase smart gate driver manufactured by Texas Instruments, designed for brushless DC motor applications. It integrates six high-side and low-side half-bridge drivers within a WQFN-40 package. The device supports a supply voltage range of 6 V to 60 V and delivers a peak output current of 1 A. Key integrated features include current sense amplifiers, hardware management interfaces, and SPI/I2C communication capabilities. It operates reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates three bidirectional current sense amplifiers with gain settings adjustable via SPI or hardware interface
• Features smart gate drive architecture with programmable slew rate and dead-time control
• Supports PWM frequencies up to 200 kHz with 100% duty cycle capability
• Includes hardware management interface for simplified microcontroller connection

Applications

• Brushless DC (BLDC) motor control systems
• Compact motor control designs requiring integrated sensing
• Industrial automation drives
• Robotics actuator control

Procurement Notes

Verify the specific suffix 'HRTAR' corresponds to the WQFN-40 package and reel/cut-tape availability from authorized distributors. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering part number matches the exact pinout and thermal pad configuration specified in the official datasheet to avoid compatibility issues with existing PCB layouts.

Selection Notes

Select this component when a single-chip solution for three-phase BLDC motors is required, combining gate driving and current sensing. It is suitable for designs needing adjustable current sense amplifier gains to optimize signal-to-noise ratio without external op-amps. Consider the WQFN-40 package size constraints and thermal dissipation requirements relative to the 1 A peak drive current capability and operating temperature range.

Part Context

This part belongs to the DRV8323 series of three-phase smart gate drivers. It is distinct from the DRV8323R variant, which includes an integrated buck step-down converter. The DRV8323HRTAR focuses on providing high-performance gate driving and current sensing functionality without onboard power conversion, making it appropriate for systems where external power regulation is already present or preferred.

Replacement Considerations

The DRV8323RHRGZR serves as a functional alternative within the same family but includes an integrated buck converter and uses a VQFN-48 package. Direct substitution requires verifying package footprint compatibility and ensuring the absence of the buck converter does not impact system power architecture.