LM3405AXMYX/NOPB

Overview

The LM3405AXMYX/NOPB is a constant current buck LED driver IC from Texas Instruments, designed for high-power LED applications. It features an integrated N-channel power switch and operates within an input voltage range of 3V to 22V. The device delivers a maximum output current of 1A with adjustable switching frequencies between 1.2MHz and 1.9MHz. It supports PWM dimming and includes thermal shutdown protection. The component is housed in an MSOP-PowerPad-8 package and functions across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates an N-channel power switch to minimize external component count
• Supports precise PWM dimming control for brightness adjustment
• Includes thermal shutdown protection to ensure operational safety

Applications

• High-power high-brightness LED lighting systems
• Automotive interior and exterior illumination
• Portable battery-powered LED drivers

Procurement Notes

Verify the specific suffix 'X' against the official datasheet to confirm reel packaging specifications. Ensure the ordering part number matches the required tape-and-reel quantity. Confirm RoHS compliance status through manufacturer documentation prior to procurement.

Selection Notes

Select this component for designs requiring a compact solution with integrated switching capabilities. The wide input voltage range suits various supply sources. Consider the MSOP-PowerPad-8 package for thermal management requirements in space-constrained layouts.

Part Context

This part belongs to the LM3405A series of LED lighting driver ICs. It is specifically engineered for buck topology applications where constant current regulation is critical. The series offers solutions for driving LEDs from low-voltage sources efficiently.

Replacement Considerations

LM3405AXMY/NOPB serves as the non-reel variant of this component family.