LM3447MT/NOPB

LED Driver IC Overview

The LM3447MT/NOPB is a power factor correction and primary-side power regulation controller designed for AC/DC LED drivers. It integrates PFC control with constant power regulation to ensure stable LED performance. The device operates within a temperature range of -40°C to +125°C and is housed in a TSSOP-14 surface-mount package.

LED Driver IC Feature Summary

• Provides constant power regulation for smooth, flicker-free dimming operation
• Integrates phase decoder and adjustable-hold current circuits for compatibility with off-line dimmers
• Combines power factor correction with primary-side power regulation in a single controller

LED Driver IC Applications

• A19, E26/27, and PAR30/38 isolated LED bulbs
• Can-light retrofits
• Off-line isolated LED lighting applications

LED Driver IC Procurement Notes

Verify the exact suffix against the manufacturer's official documentation to confirm pinout and electrical specifications. Ensure the component matches the required thermal and voltage ratings for the specific LED driver topology. Cross-reference the datasheet revision date to validate feature availability and compliance status before integration into the design.

LED Driver IC Selection Notes

Select this controller for designs requiring integrated PFC and constant power regulation in isolated topologies. It is suitable for applications needing smooth dimming without external secondary-side sensing. Evaluate the TSSOP-14 package constraints and thermal management requirements relative to the target power level and ambient operating conditions.

LED Driver IC Part Context

This component belongs to the LM3447 series from Texas Instruments, which focuses on offline LED lighting solutions. The series addresses the need for high-performance power factor correction and precise current regulation in compact, cost-effective LED driver architectures commonly used in general illumination markets.

LED Driver IC Replacement Considerations

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