MPQ5872GRPE-AEC1-Z

Overview

The MPQ5872GRPE-AEC1-Z is a single-channel smart high-side load switch from Monolithic Power Systems, designed for automotive applications. It features an integrated 60 mΩ MOSFET and supports input voltages as low as 3.5 V, withstanding up to 42 V load dump transients. The device delivers a nominal output current of 2 A with a maximum current limit of 3 A. It operates within a supply voltage range of 5 V to 28 V and functions across a temperature range of -40 °C to +150 °C. The component is housed in a compact QFN-8 (2 mm x 2.5 mm) package with wettable flanks and holds AEC-Q100 Grade 1 qualification.

Feature Summary

• Integrated 60 mΩ MOSFET for efficient power distribution and extended battery life
• Robust transient protection handling up to 42 V load dump events
• Configurable external current limiting and adjustable startup slew rate to manage inrush currents
• Comprehensive diagnostic capabilities including open-load and short-circuit detection via the DIAG_EN pin

Applications

• Automotive lighting systems
• Sensor power distribution
• Actuator control circuits
• Infotainment module power switching

Procurement Notes

Verify the complete part number includes the GRPE suffix and AEC1-Z designation to ensure correct packaging and automotive qualification status. Confirm that the specific revision matches the required AEC-Q100 Grade 1 standard. Cross-reference the datasheet version to validate electrical characteristics against the design requirements. Ensure compatibility with the intended PCB footprint for the QFN-8 package.

Selection Notes

Select this component when designing for harsh automotive environments requiring high transient immunity and precise current management. The adjustable startup slope and configurable current limit offer flexibility for protecting sensitive downstream loads. The low standby current of 0.5 μA makes it suitable for always-on applications where power conservation is critical. Ensure the thermal design accommodates the QFN-8 package constraints.

Part Context

This device belongs to the MPQ5872 family of smart high-side switches optimized for automotive use. It integrates protection features typically found in discrete solutions into a single compact IC. The AEC-Q100 qualification ensures reliability under automotive stress conditions. The family focuses on providing diagnostic feedback and robust performance in space-constrained electronic control units.

FAQ

How is the fault condition reported by the MPQ5872?

The FT/CS pin can be used to report faults by pulling its voltage high, providing accurate real-time diagnostics without additional calibration.

Can the current limit be adjusted externally?

Yes, the device supports configurable external current limiting to tailor protection levels for specific load requirements.

What is the minimum operating voltage for cold start?

The device supports cold start functionality down to an input voltage of 3.5 V.