MPQ3367GR-Z

Overview

The MPQ3367GR-Z is a six-channel WLED driver IC from Monolithic Power Systems, designed for automotive applications with AEC-Q100 qualification. It utilizes Boost and SEPIC topologies to drive up to six LED strings with a maximum channel current of 150 mA. The device supports a wide input voltage range from 3.5 V to 36 V and operates at a switching frequency of 2.2 MHz. It features PWM dimming with a high dimming ratio and includes an I2C interface for configuration. Packaged in a QFN-24 format, it functions within a temperature range of -40°C to +125°C.

Feature Summary

• Six independent output channels capable of driving multiple WLED strings simultaneously
• Supports both Boost and SEPIC converter topologies for flexible LED string configurations
• Integrated I2C interface allows for digital control and monitoring of driver parameters
• High-resolution PWM dimming capability ensures smooth brightness adjustment

Applications

• Automotive exterior lighting systems requiring AEC-Q100 compliant components
• Multi-string white LED arrays for vehicle illumination
• Applications necessitating digital control via I2C bus
• Systems operating under wide input voltage conditions typical of automotive environments

Procurement Notes

Verify the specific suffix 'Z' indicates lead-free compliance and RoHS adherence as per manufacturer standards. Confirm that the AEC-Q100 qualification is required for your target application, as this distinguishes it from non-automotive variants. Ensure the QFN-24 package footprint matches your PCB design constraints. Cross-reference the datasheet for thermal performance requirements given the power dissipation specifications.

Selection Notes

Select this component when a multi-channel solution is needed for automotive WLED applications. It is suitable for designs requiring high dimming ratios and digital control interfaces. Consider the 150 mA per channel limit and the 36 V input range to ensure compatibility with your LED string voltage and current requirements. The integrated topology options simplify external component selection compared to discrete solutions.

Part Context

This part belongs to the MPQ336x series of WLED drivers from Monolithic Power Systems. It shares functional similarities with the MPQ3369GR-Z but offers higher channel current capacity (150 mA vs 100 mA) and specific automotive qualification. It serves as a specialized alternative to general-purpose LED drivers in regulated automotive lighting architectures.

Replacement Considerations

The MPQ3369GR-Z is a related variant within the same family, offering similar functionality but with a lower maximum channel current of 100 mA. Verify if the reduced current rating meets your specific LED string requirements before substituting.