MP24892DJ-LF-Z

LED Driver IC Overview

The MP24892DJ-LF-Z is a Monolithic Power Systems LED lighting driver IC designed for white LED applications. It utilizes a buck topology with a single output channel capable of delivering up to 1 A of output current. The device operates within an input voltage range of 6 V to 45 V and supports a switching frequency of 600 kHz. It features analog and PWM dimming capabilities, short circuit protection, and thermal shutdown. The component is housed in a TSOT-23-5 package and is rated for operation between -40°C and +125°C junction temperature.

LED Driver IC Feature Summary

• Integrated step-down (buck) converter architecture for efficient white LED driving
• Supports both analog and pulse-width modulation (PWM) dimming methods
• Includes built-in short circuit and thermal protection mechanisms

LED Driver IC Applications

• Virtual reality (VR) LCD panel backlighting
• General white LED illumination systems
• Signage applications requiring regulated LED drive

LED Driver IC Procurement Notes

Verify the specific suffix LF-Z for lead-free compliance and RoHS status against current manufacturer declarations. Confirm the TSOT-23-5 package dimensions match your PCB footprint requirements. Check for any obsolescence notices or recommended new design alternatives from Monolithic Power Systems prior to finalizing procurement plans.

LED Driver IC Selection Notes

Select this component when a compact buck regulator is required for single-channel white LED arrays. Ensure the input supply voltage remains within the 6 V to 45 V operational window. Consider the 1 A current limit and thermal dissipation characteristics relative to the expected LED load and ambient operating conditions.

LED Driver IC Part Context

This part belongs to the MP2489 series of LED drivers from Monolithic Power Systems. It is specifically engineered for space-constrained applications such as VR displays. The TSOT-23-5 package provides a small form factor suitable for dense board layouts while maintaining necessary electrical isolation and thermal performance for integrated switch designs.

LED Driver IC Replacement Considerations

The MP24893DQ-LF-Z is a related variant offering similar functionality but housed in a QFN-6 package with a higher maximum input voltage rating of 36 V. Verify pinout compatibility and thermal requirements when considering cross-package substitutions.