LM3414MRX/NOPB

Overview

The LM3414MRX/NOPB is a Texas Instruments LED lighting driver IC featuring a buck topology. It supports an input voltage range from 4.5 V to 42 V and delivers a constant output current of 1 A. The device operates at switching frequencies between 250 kHz and 1 MHz, with adjustable output voltage capabilities. Packaged in an SO-PowerPad-8, it functions within a temperature range of -40°C to +125°C.

Feature Summary

• Supports common anode LED configurations
• Eliminates the need for external current sensing resistors
• Adjustable switching frequency for optimized design flexibility

Applications

• General LED lighting systems
• Constant current LED driver circuits
• Buck converter based LED power supplies

Procurement Notes

Verify the specific suffix 'MRX' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 'NOPB' designation indicates lead-free and RoHS compliance status as per the manufacturer's current product change notifications. Ensure the ordering part number matches the exact package outline drawing for PCB footprint compatibility.

Selection Notes

Select this component when designing high-efficiency buck converters for single-string LED arrays requiring up to 1 A. Consider the wide input voltage range suitable for various supply sources. Evaluate the thermal performance of the PowerPad-8 package against the expected ambient temperature conditions to ensure reliable operation within the specified industrial temperature limits.

Part Context

This device belongs to the LM3414 series of LED drivers designed for efficient light management. It integrates control logic for constant current regulation without external sense components. The series targets applications demanding compact solutions with reduced bill-of-materials count by removing traditional current-sensing resistors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.