MP3388EY-LF-P

Overview

The MP3388EY-LF-P is an 8-channel white LED driver IC from Monolithic Power Systems, housed in a 28-SOIC package. It operates on a boost topology with an input voltage range of 4.5V to 25V and generates up to 50V output. The device supports selectable switching frequencies of 625kHz or 1.25MHz. It provides independent current regulation for eight LED strings with a matching accuracy of ±3%. Protection features include adjustable overvoltage protection, UVLO, open/short circuit detection, and thermal shutdown.

Feature Summary

• Provides balanced current driving for up to eight independent WLED strings
• Supports flexible brightness control via external PWM or DC input burst mode dimming
• Integrates comprehensive protection mechanisms including thermal shutdown and fault detection

Applications

• Large LCD panel backlighting systems
• White LED array drivers for display modules
• High-efficiency LED lighting solutions requiring multi-string balance

Procurement Notes

Verify the specific suffix LF-P against official MPS documentation to confirm lead-free status and tape-and-reel packaging configuration. Confirm that the SOIC-28 package variant matches your PCB footprint requirements. Ensure design compliance with the specified operating temperature range and humidity sensitivity levels before procurement.

Selection Notes

Select this component when designing high-efficiency backlight circuits requiring precise current matching across multiple LED channels. The integrated boost converter simplifies design by eliminating external switches. Consider the available switching frequency options to optimize inductor size and electromagnetic interference performance for the target application constraints.

Part Context

This part belongs to the MP3388 series of high-efficiency LED drivers designed for large LCD backlights. The EY suffix denotes the SOIC-28 package variant, distinct from the QFN-24 package used in other series members like the MP3388DR. The series emphasizes compact size and high efficiency for portable and industrial display applications.

Replacement Considerations

MPS recommends considering the MP3388S for new designs as the standard MP3388 series may be transitioning. Verify functional compatibility and pinout alignment if substituting with other 8-channel boost LED drivers from different manufacturers.