MP3384LGQ-Z

Overview

The MP3384LGQ-Z is a Monolithic Power Systems LED lighting driver IC designed for LCD backlighting applications. It functions as a boost converter capable of driving up to four white LED strings. The device operates with an input voltage range of 3V to 25V and supports a maximum output voltage of 50V. It features selectable fixed switching frequencies of 625kHz or 1.25MHz. The unit utilizes a QFN-16 (3mm x 3mm) package and maintains a minimum operating temperature of -40°C and a maximum of +125°C.

Feature Summary

• Integrated boost topology for independent current regulation across four LED channels
• Supports PWM dimming control for display brightness adjustment
• Includes comprehensive protection mechanisms such as overvoltage, thermal shutdown, and LED open/short circuit detection

Applications

• LCD backlighting for portable devices
• White LED string drivers in consumer electronics
• Battery-powered display systems requiring single-cell input

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the QFN-16 footprint matches your PCB layout requirements. Cross-reference the electrical parameters with the latest datasheet revision to ensure compatibility with your system design constraints.

Selection Notes

Select this component when designing circuits requiring a compact solution for multi-string WLED backlighting. The low input voltage capability allows operation from single-cell batteries. Ensure the application demands a boost topology with independent channel balancing. Verify that the required switching frequency aligns with available external component values for optimal efficiency.

Part Context

This part belongs to the MP3384L series of LED drivers from Monolithic Power Systems. It is specifically engineered for high-efficiency white LED applications. The series emphasizes precise current matching between channels to ensure uniform illumination. It represents a specialized solution for modern display backlighting needs.

Replacement Considerations

MP3384LGQ-P is a confirmed substitute within the same series offering identical functional characteristics.