DRV8302DCAR

Overview

The DRV8302DCAR is a three-phase brushless DC motor pre-driver manufactured by Texas Instruments. It operates on a single supply voltage ranging from 6 V to 60 V and utilizes an HTSSOP-56 package. The device features integrated high-side and low-side gate drivers capable of sourcing 1.7 A, supporting 100% duty cycle via bootstrap architecture with trickle charging. It includes two current shunt amplifiers for bidirectional current sensing and an integrated switching mode buck converter for system power management. Communication is handled via SPI, enabling flexible parameter configuration and fault reporting.

Feature Summary

• Integrates dual current shunt amplifiers for precise bidirectional current measurement with adjustable output offset
• Includes an integrated switching mode buck converter to provide regulated power for microcontrollers or other system loads
• Features automatic handshake logic during MOSFET switching to prevent shoot-through currents in the external power stage
• Supports hardware-controlled operation with integrated VDS detection for overcurrent protection of external power components

Applications

• Three-phase BLDC and PMSM motor control systems
• CPAP devices and fluid pump applications
• Electric bicycles and power tools
• Robotics and remote-controlled toys
• Industrial automation equipment

Procurement Notes

Verify the specific suffix 'DCAR' corresponds to the tape-and-reel packaging variant when ordering. Confirm that the hardware-controlled interface requirements align with the design, as this variant differs from the SPI-controlled DRV8301. Ensure compatibility with the target voltage range and thermal dissipation capabilities of the HTSSOP-56 package for the intended application environment.

Selection Notes

Select the DRV8302DCAR when hardware-based control signals are preferred over digital interfaces for motor drive applications. This component is suitable for designs requiring integrated current sensing and buck regulation within a compact form factor. Consider the 6 V to 60 V operating range and the 1.7 A driver capability when sizing external MOSFETs and passive components for the specific load requirements.

Part Context

The DRV8302 belongs to Texas Instruments' family of three-phase gate drivers designed for brushless motor applications. Unlike the SPI-configurable DRV8301, the DRV8302 relies on hardware inputs for commutation and direction control. It shares similar power stage integration features, including current sensing and buck conversion, but targets applications where analog or PWM-based control loops are utilized instead of digital communication protocols.

Replacement Considerations

The DRV8301 serves as a functional alternative if SPI-based configuration is required instead of hardware control. For automotive applications, the DRV3245-Q1 offers qualified alternatives with similar three-phase gate driving capabilities.