DRV8703QRHBTQ1

Overview

The DRV8703QRHBTQ1 is an automotive-grade single-channel H-bridge gate driver designed to control a bidirectional brushed DC motor using four external N-channel MOSFETs. It operates within a supply voltage range of 5.5V to 45V and supports a wide operating temperature range from -40°C to +125°C. The device features a serial peripheral interface (SPI) for configuration, including adjustable gate drive settings and current regulation. It integrates a low-power sleep mode, internal sensing amplifier, and comprehensive protection mechanisms such as overcurrent protection, thermal shutdown, and undervoltage lockout.

Feature Summary

• Integrates SPI interface for flexible configuration of gate drive settings and current regulation parameters
• Supports multiple control interfaces including Phase/Enable, Independent Half-Bridge, and PWM modes
• Includes integrated current shunt amplifier with low-current regulation capability for precise motor control
• Features robust protection mechanisms including overcurrent protection, thermal shutdown, and fault monitoring output

Applications

• Automotive windshield wiper systems
• Power window actuators
• Seat adjustment motors
• HVAC blower motor control

Procurement Notes

Verify the specific suffix 'RHBTQ1' against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure the component meets AEC-Q100 Grade 1 requirements for your target environment. Cross-reference the ordering part number with Texas Instruments documentation to avoid confusion with non-automotive variants or different package options.

Selection Notes

Select this component when a single-channel H-bridge solution with digital SPI configuration is required for automotive brushed DC motor applications. It is suitable for designs needing adjustable gate drive speeds and integrated current sensing without external amplifiers. Consider the 32-VQFN package constraints and ensure adequate PCB thermal management for high-current operations.

Part Context

This device belongs to the DRV870x-Q1 family of automotive H-bridge gate drivers. It shares functional similarities with the DRV8702D-Q1 but distinguishes itself through the inclusion of an SPI interface for advanced configuration. The family is designed to replace discrete gate driver solutions, reducing board space and simplifying design complexity in automotive motor control systems.

Replacement Considerations

DRV8702D-Q1 offers similar functionality but lacks the SPI interface, relying solely on hardware control pins.