DRV8323RHRGZR

Overview

The DRV8323RHRGZR is a three-phase smart gate driver from Texas Instruments, designed for brushless DC motor applications. It operates within a supply voltage range of 6 V to 60 V and utilizes a 48-pin VQFN package with PowerPAD thermal enhancement. The device integrates six high-side and low-side drivers capable of sourcing 1 A and sinking 2 A peak currents. Key integrated features include a buck step-down converter, three bidirectional current sense amplifiers with adjustable gain, and hardware management interfaces. Control is facilitated via SPI or I2C communication protocols.

Feature Summary

• Integrates three bidirectional current sense amplifiers for precise phase current monitoring using low-side shunt resistors.
• Features a built-in buck step-down converter to provide regulated power for external components.
• Supports programmable gate drive parameters including slew rate and dead-time control via digital interface.
• Includes hardware management interfaces for direct microcontroller connection and system protection.

Applications

• Brushless DC (BLDC) motor drives
• Three-phase AC induction motor systems
• Compact industrial motor control designs

Procurement Notes

Verify the specific suffix HRGZR to confirm the 48-pin VQFN packaging and reel/cut-tape availability options. Ensure compatibility with the BOOSTXL-DRV8323RH development kit if evaluation is required. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement specifications.

Selection Notes

Select this component when a compact solution for three-phase motor control is required. The integrated current sensing reduces external component count compared to discrete driver solutions. Consider the 6 V to 60 V operating range for suitability in various bus voltage environments. Evaluate the thermal performance of the VQFN package against the expected power dissipation of the application.

Part Context

This part belongs to the DRV832x family of smart gate drivers. It shares architectural similarities with the DRV8320 but includes additional integrated current sense amplifiers. The R variant typically denotes specific feature sets or revisions within the standard DRV8323 lineup. It serves as a core power stage controller for modern motor drive topologies.

Replacement Considerations

The DRV8323RSRGZR is a pin-compatible alternative within the same family. Verify that the replacement matches the specific package outline and thermal pad configuration. Check datasheet revisions to ensure functional equivalence regarding current amplifier gain settings and interface protocols.

FAQ

How is the gain of the integrated current sense amplifiers adjusted?

The gain of the three bidirectional current sense amplifiers can be adjusted via the SPI or hardware management interface.

What is the maximum supply voltage supported by this device?

The DRV8323RHRGZR supports a maximum supply voltage of 60 V.