MPQ4425AGQBE-AEC1-Z

Overview

The MPQ4425AGQBE-AEC1-Z is an automotive-grade, single-channel synchronous step-down LED driver manufactured by Monolithic Power Systems. It operates with a wide input voltage range of 4 V to 36 V and delivers a constant output current of 1.5 A. The device integrates a fixed switching frequency of 2.2 MHz and supports PWM dimming for brightness control. Designed for reliability in harsh environments, it functions within a temperature range of -40°C to +125°C and holds AEC-Q100 qualification. The component utilizes a QFN-13 package featuring wettable flank technology to enhance solder joint inspection and mechanical stability.

Feature Summary

• Supports high-frequency PWM dimming for precise LED brightness adjustment
• Integrates short circuit and thermal protection mechanisms for system safety
• Utilizes wettable flank QFN-13 packaging for improved assembly reliability

Applications

• Automotive exterior lighting systems
• Automotive interior ambient lighting
• LED headlamp modules
• Daytime running light circuits

Procurement Notes

Verify the specific suffix 'AEC1' confirms AEC-Q100 automotive qualification status before integration. Confirm that the wettable flank package variant matches the required PCB footprint and automated optical inspection capabilities. Ensure the selected reel quantity aligns with production volume requirements, as standard factory packaging may differ from cut-tape options.

Selection Notes

Select this component when designing single-channel LED drivers requiring automotive certification and high efficiency. The 1.5 A output current capability suits moderate-power LED strings. Consider the 2.2 MHz switching frequency for balancing electromagnetic interference filtering requirements against passive component size constraints in space-constrained automotive enclosures.

Part Context

This part belongs to the MPQ4425 series of synchronous buck LED drivers designed specifically for automotive applications. The AGQBE suffix indicates the specific package type and quality grade. It serves as a dedicated constant current source for driving LEDs in vehicle lighting architectures where reliability and thermal management are critical design parameters.

Replacement Considerations

MPQ4425CGQBE-AEC1-Z: Similar single-channel driver but verify power dissipation differences.

FAQ

What is the maximum input voltage supported by this driver?

The MPQ4425AGQBE-AEC1-Z supports a maximum input voltage of 36 V.

Does this component support analog dimming?

No, official documentation specifies PWM dimming as the supported method for brightness control.