DRV8244SQDGQRQ1

Overview

The DRV8244SQDGQRQ1 is an automotive-grade, fully integrated H-bridge motor driver manufactured by Texas Instruments. Designed for robust performance in vehicle environments, it supports a supply voltage range of 4.5 V to 35 V with an absolute maximum rating of 40 V. The device delivers a continuous output current of 21 A and features an on-resistance (R_ON_LS + R_ON_HS) of 60 mΩ when housed in the HVSSOP package. It integrates N-channel MOSFETs, a charge pump, high-side current detection, and comprehensive protection circuits including overcurrent and overtemperature safeguards. The component operates within a temperature range of -40°C to +125°C and complies with AEC-Q100 standards.

Feature Summary

• Fully integrated H-bridge driver with built-in current sensing and diagnostic capabilities
• Configurable control modes supporting single full-bridge or two independent half-bridges
• Advanced protection mechanisms including overcurrent, overtemperature, and load fault detection
• Low static current consumption via low-power sleep mode

Applications

• Automotive brushed DC motors and solenoids
• Door modules, wiper modules, trunk, and seat actuators
• Body Control Modules (BCM)
• Steering systems
• Gas engine systems

Procurement Notes

Verify that the specific suffix DGQRQ1 corresponds to the HVSSOP package variant with 60 mΩ on-resistance, distinct from other pin-compatible options like RYJRQ1 which utilize different packages. Confirm AEC-Q100 qualification status and functional safety documentation availability if required for your system design. Ensure logic input voltage levels match your microcontroller interface, as the device supports both 3.3 V and 5 V logic.

Selection Notes

Select this component when a 21 A current capacity is required for automotive brushed DC motor applications. The HVSSOP package offers a balance between thermal performance and footprint size compared to larger QFN alternatives. Consider the SPI interface variant if flexible configuration and detailed fault observability are necessary, rather than hard-wired control. Ensure the system can accommodate the specified 4.5 V to 35 V operating range and that thermal management solutions align with the 60 mΩ resistance characteristics.

Part Context

The DRV8244-Q1 series represents Texas Instruments' solution for scalable automotive motor driving, featuring pin-compatible variants with different current ratings and packaging options. This specific model sits within the broader DRV824x family, designed to simplify layout and EMI control through configurable slew rates and spread-spectrum clocking. It complements other TI automotive power management and motor control ICs by providing a complete, integrated drive stage with minimal external components.

Replacement Considerations

DRV8244HQRYJRQ1: Offers identical functionality but utilizes a VQFN-HR package with lower on-resistance (47 mΩ) and higher current capability potential due to improved thermal performance.

FAQ

What is the difference between the HW, SPI(P), and SPI(S) interface variants?

The HW variant uses hard-wired logic inputs. The SPI(P) variant uses an SPI interface with externally provided logic power, while the SPI(S) variant generates internal logic power. SPI variants offer greater flexibility in configuration and fault observability.

Does the DRV8244SQDGQRQ1 require external shunt resistors for current sensing?

No, the device integrates high-side current detection and provides a proportional load current output on the IPROPI pin, eliminating the need for external shunt resistors.