DRV8242PQRHLRQ1

Overview

The DRV8242PQRHLRQ1 is an automotive-grade H-bridge motor driver from 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 up to 6 A and features a low on-resistance of 250 mΩ (sum of high-side and low-side). It integrates current sensing via the IPROPI pin, eliminating the need for external shunt resistors. The component operates within a temperature range of -40°C to +150°C and includes comprehensive protection mechanisms such as overcurrent, overtemperature, and undervoltage lockout.

Feature Summary

• Integrated current sensing capability through the IPROPI pin for direct load current monitoring without external components
• Configurable PWM frequency support up to 25 kHz with automatic dead-time insertion to prevent shoot-through
• Advanced diagnostic and fault reporting features including open-load and short-circuit detection in both on and off states
• Ultra-low power consumption in sleep mode with typical standby current of 1.3 µA at 25°C

Applications

• Automotive door modules and seat adjustment systems
• Body control modules (BCM) for actuator management
• Gasoline engine throttle control applications
• On-board charger (OBC) systems
• Solenoid and valve control circuits

Procurement Notes

Verify that the ordering suffix matches the required interface variant, as the DRV8242 family includes HW and SPI options with distinct functional capabilities. Confirm the package type corresponds to the specific PCB layout requirements. Ensure compliance with AEC-Q100 qualification standards for the intended automotive application environment. Cross-reference the datasheet revision to confirm compatibility with existing design specifications.

Selection Notes

Select this component when a 6 A continuous drive capability is sufficient for the target load. The integrated current sensing reduces bill-of-materials complexity compared to solutions requiring external shunts. Consider the SPI variant if detailed fault logging and configurable protection thresholds are necessary. Evaluate thermal management requirements based on the expected duty cycle and ambient operating conditions.

Part Context

This part belongs to the DRV824x-Q1 family of automotive H-bridge drivers. It shares the same core architecture and interface protocols with variants like the DRV8243-Q1 and DRV8245-Q1, which offer higher current ratings and lower on-resistance. The DRV8242PQRHLRQ1 specifically targets applications where moderate current drive and integrated diagnostics are prioritized over maximum power handling capacity.

Replacement Considerations

Direct substitutes within the same family include the DRV8243-Q1 for higher current needs or the DRV8245-Q1 for maximum performance. Verify pin-to-pin compatibility and software configuration settings when migrating between different current-rated variants in the DRV824x series.