MP3399EF-LF-Z

Overview

The MP3399EF-LF-Z is a high-voltage boost white LED controller designed for driving up to 12 series-connected strings. It operates within an input voltage range of 5 V to 28 V and supports a switching frequency of 570 kHz. The device features 12 independent output channels housed in a TSSOP-28 package, with a maximum power dissipation of 3.9 W. It functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Supports control of up to 12 parallel LED strings via a single inductor boost topology
• Provides precise current regulation for white LEDs across a wide input voltage range
• Integrates protection mechanisms including overvoltage, thermal shutdown, and open/short circuit detection

Applications

• High-voltage white LED lighting systems
• Backlighting drivers for displays requiring multiple LED strings
• Industrial illumination applications operating at elevated temperatures

Procurement Notes

Verify the specific suffix LF-Z against official Monolithic Power Systems documentation to confirm lead-free compliance and tape-and-reel packaging specifications. Ensure that the TSSOP-28 footprint matches your PCB design guidelines. Cross-reference the datasheet revision date to validate all electrical parameters before finalizing component selection.

Selection Notes

Select this component when designing circuits requiring simultaneous drive for numerous LED strings without complex multi-inductor architectures. The fixed 570 kHz frequency simplifies electromagnetic interference filtering compared to adjustable variants. Consider the 3.9 W power dissipation limit and ensure adequate thermal management solutions are integrated into the system layout.

Part Context

This part belongs to the MP3399 series of LED lighting drivers manufactured by Monolithic Power Systems. It serves as a specialized solution for high-density LED arrays, distinguishing itself through its ability to manage twelve channels concurrently. The series targets applications demanding uniform brightness across extensive LED configurations.

Replacement Considerations

MP3394EF-LF-Z