MP3397ES-LF-Z

Overview

The MP3397ES-LF-Z is a white LED driver IC from Monolithic Power Systems designed for multi-string lighting applications. It features a boost topology with four independent output channels capable of driving up to 350 mA per string. The device operates within an input voltage range of 5 V to 28 V and utilizes a fixed switching frequency of 540 kHz. Packaged in a SOIC-16 format, it supports PWM dimming control and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates four independent constant current channels for simultaneous multi-string LED control
• Employs a boost converter topology to efficiently drive high-voltage LED arrays from lower supply voltages
• Supports precise digital brightness adjustment through pulse-width modulation (PWM) dimming signals

Applications

• White LED backlighting systems for television displays
• Multi-zone automotive interior and exterior lighting modules
• High-density commercial LED panel illumination fixtures

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm package type and environmental compliance status. Confirm that the component lifecycle stage aligns with long-term production requirements, as availability may be restricted for newer designs. Ensure all electrical parameters match the target application specifications before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring independent control of multiple LED strings from a single controller. The boost topology is suitable for applications where the LED forward voltage exceeds the available supply rail. Consider the thermal performance characteristics of the SOIC-16 package relative to the total power dissipation expected in the target environment.

Part Context

This part belongs to the MP3397 series of LED drivers manufactured by Monolithic Power Systems. It is specifically engineered for high-performance lighting solutions requiring precise current regulation across multiple channels. The series is distinct from other MPS products by its focus on integrated boost conversion and multi-channel synchronization capabilities.

Replacement Considerations

Consult official manufacturer substitution guides for verified alternative part numbers. Do not assume functional equivalence with generic LED drivers without verifying pinout compatibility and electrical parameter alignment.