DRV8702QRHBTQ1

Overview

The DRV8702QRHBTQ1 is an automotive-grade half-bridge gate driver designed for brushed DC motor applications. It operates within a supply voltage range of 5.5 V to 45 V and supports PWM control interfaces. The device integrates high-side and low-side drivers with dedicated bootstrap diodes, enabling efficient switching of external power MOSFETs. It features overcurrent protection, thermal shutdown, and undervoltage lockout mechanisms to ensure robust operation in harsh automotive environments. The component is housed in a 32-pin VFQFN package with exposed thermal pad for enhanced heat dissipation.

Feature Summary

• Integrated half-bridge gate driver architecture with built-in bootstrap diodes
• Comprehensive protection suite including overcurrent sensing, thermal shutdown, and undervoltage lockout
• Automotive qualification compliant with AEC-Q100 standards for reliability
• Supports PWM input signals for precise motor speed and direction control

Applications

• Brushed DC motor control in automotive systems
• Fuel pump and cooling fan drive circuits
• Window lift and seat adjustment actuators
• Power steering assist motor drivers

Procurement Notes

Verify the specific suffix 'Q1' confirms automotive grade qualification and 'TQ1' indicates tape-and-reel packaging configuration. Ensure compatibility with your PCB footprint for the 32-VFQFN package. Confirm that the design accounts for the required thermal management due to the exposed pad structure. Cross-reference the latest datasheet revision to validate pinout consistency before finalizing procurement orders.

Selection Notes

Select this component when designing brushed DC motor drives requiring integrated gate driving capabilities without external discrete bootstrap components. It is suitable for applications needing robust fault protection and automotive reliability standards. Consider the 45 V maximum supply limit and current handling requirements of the connected MOSFETs. Evaluate thermal performance based on the expected duty cycle and ambient operating conditions.

Part Context

This part belongs to the DRV870x-Q1 family of automotive gate drivers from Texas Instruments. It shares functional similarities with the DRV8703D-Q1 but differs in internal configuration and pinout. The family is designed to simplify motor driver designs by integrating control logic and power stage drivers into a single compact solution.

Replacement Considerations

The DRV8702D-Q1 is a non-automotive grade equivalent with similar electrical characteristics. For direct replacements, verify pin-to-pin compatibility with the DRV8703D-Q1 if the application allows for architectural differences. Always consult the manufacturer's substitution guide for validated alternatives.