MP3388EY-LF

LED Driver IC Overview

The MP3388EY-LF-Z is a boost converter with eight-channel current sources designed for driving white LED arrays in large LCD panel backlights. It operates within an input voltage range of 4.5V to 25V and generates up to 50V output. The device features selectable switching frequencies of 1.25MHz or 625kHz, PWM dimming, and adjustable overvoltage protection. It is housed in a 28-SOIC package.

LED Driver IC Feature Summary

• Eight independent current sources provide balanced drive for WLED strings with high matching precision
• Supports flexible backlight brightness control via external PWM or DC input burst PWM dimming
• Integrated protection mechanisms include UVLO, OVP, thermal shutdown, and LED open/short circuit detection

LED Driver IC Applications

• Large size LCD panel backlighting systems
• White LED array drivers for display modules
• High-efficiency boost converter applications requiring multi-string current regulation

LED Driver IC Procurement Notes

Verify the specific suffix (LF-Z) against the latest manufacturer documentation to confirm RoHS compliance and lead-free status. Confirm the package type matches the design requirements, as variants exist in different footprints. Check the lifecycle status, as this component may be marked as not recommended for new designs.

LED Driver IC Selection Notes

Select this component when designing for large LCD panels requiring precise current balancing across multiple LED strings. Ensure the application supports the 28-SOIC package footprint. Verify that the required switching frequency aligns with the available options of 1.25MHz or 625kHz for optimal inductor selection.

LED Driver IC Part Context

This part belongs to the MP3388 series from Monolithic Power Systems, which includes variants like the MP3388DR-LF-Z in QFN-24 packages. The EY suffix specifically denotes the SOIC-28 packaging option. The series is engineered for high efficiency and compact size in professional display backlighting solutions.

LED Driver IC Replacement Considerations

Monolithic Power Systems recommends the MP3388S as an alternative for new designs. Verify pin compatibility and electrical specifications before substituting.