DRV8244HQDGQRQ1

Overview

The DRV8244HQDGQRQ1 is an automotive-grade H-bridge driver from Texas Instruments, certified to AEC-Q100 Grade 1 standards for operation between -40°C and +125°C. It supports a supply voltage range of 4.5 V to 35 V with a maximum absolute rating of 40 V. The device delivers a maximum output current of 21 A and features a low on-resistance of 47 mΩ in its VQFN-HR package. It integrates high-side current sensing, adjustable current regulation, and comprehensive protection mechanisms including overcurrent and overtemperature safeguards.

Feature Summary

• Configurable as a single full bridge or two independent half bridges with support for PWM and PH/EN control modes
• Integrated high-side current detection and proportional output via IPROPI pin without requiring external shunt resistors
• Advanced EMI mitigation through configurable slew rate control and spread spectrum clocking capabilities
• Robust diagnostic system featuring load open/short detection, power supply monitoring, and fault indication via nFAULT pin

Applications

• Automotive body control modules (BCM)
• Power window and door lock actuators
• Seat adjustment systems
• Trunk and tailgate latches
• Wiper motor control

Procurement Notes

Verify the specific suffix DGQRQ1 confirms the HVSSOP package and SPI interface variant. Ensure the component meets AEC-Q100 Grade 1 requirements for your target temperature range. Confirm that the selected variant aligns with your system's logic voltage needs, as SPI variants differ in internal versus external logic power generation. Cross-reference the datasheet revision to ensure compatibility with existing design files.

Selection Notes

Select this model when high current capacity up to 21 A is required for automotive loads. The SPI interface offers superior configuration flexibility and diagnostic visibility compared to hardwired options. Consider the thermal performance of the HVSSOP package relative to your PCB layout constraints. This device is suitable for applications demanding precise current regulation and robust fault protection in harsh automotive environments.

Part Context

This component belongs to the DRV8244-Q1 family of integrated H-bridge drivers designed for automotive brushed DC motors and solenoids. It utilizes BiCMOS technology to combine power handling with compact packaging. The family includes variants with different interfaces and packages to accommodate diverse system architectures while maintaining consistent core electrical performance and automotive reliability standards.

Replacement Considerations

Direct substitutes within the same family include DRV8244SQDGQRQ1 and DRV8244PQDGQRQ1. Verify that alternative part numbers match the required package type and interface specifications. Ensure any replacement maintains the same AEC-Q100 qualification level and electrical ratings to guarantee functional equivalence in automotive applications.