MP3394ES-LF

Overview

The MP3394ES-LF is a four-channel boost WLED driver IC from Monolithic Power Systems, designed for large LCD panel backlight applications. It operates within an input voltage range of 5V to 28V and provides up to 200mA output current per channel. The device features a fixed frequency architecture with adjustable switching frequencies between 145kHz and 600kHz. It utilizes a 16-pin SOIC package and supports operation temperatures from -20°C to +125°C. The controller includes internal current sources for precise channel matching.

Feature Summary

• Four independent high-side current sources for driving white LED strings
• High current matching accuracy across channels to ensure uniform brightness
• Supports PWM or DC input dimming control methods
• Integrated protection mechanisms including open/short circuit detection

Applications

• Large LCD panel backlight systems
• White LED array drivers in display modules
• Portable electronic device backlighting

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 component remains suitable for your design as it may be marked not recommended for new designs. Ensure compatibility with your PCB footprint requirements for the SOIC-16 package before finalizing procurement.

Selection Notes

Select this component when designing multi-string LED backlights requiring precise current balancing without external sense resistors. Consider the MP3394S as an alternative if newer design support is required. Evaluate the thermal performance within the SOIC-16 package constraints given the power dissipation limits. Verify that the input voltage range aligns with your system's power supply rails.

Part Context

This part belongs to the MP3394 series of LED lighting drivers manufactured by Monolithic Power Systems. The series focuses on providing efficient solutions for driving multiple white LED strings in parallel using a single inductor topology. The ES variant specifically denotes the SOIC-16 package option within this product family.

Replacement Considerations

Officially documented alternative: MP3394S. Consult MPS datasheets to verify functional equivalence and pinout compatibility before substitution.