LM3414HVSD/NOPB

Overview

The LM3414HVSD/NOPB is a high-voltage LED lighting driver IC from Texas Instruments, designed for buck topology applications. It operates within an input voltage range of 4.5 V to 65 V and delivers a constant output current of 1 A. The device supports adjustable switching frequencies between 250 kHz and 1 MHz and features analog and PWM dimming capabilities. Packaged in a WSON-8 format, it functions across a temperature range of -40°C to +125°C with a maximum supply current of 3.6 mA.

Feature Summary

• Integrates a power switch for simplified circuit design
• Supports both analog and pulse-width modulation dimming methods
• Includes thermal shutdown protection for enhanced reliability
• Features adjustable switching frequency for flexible filter design

Applications

• High-power LED lighting systems
• Common anode LED configurations
• Industrial illumination fixtures
• Automotive exterior lighting modules

Procurement Notes

Verify the specific suffix designation against official Texas Instruments documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the intended buck converter topology and input voltage requirements before procurement. Cross-reference the RoHS status and lead-free manufacturing details with the latest datasheet revisions to meet regulatory compliance standards for the target market.

Selection Notes

Select this component for applications requiring high input voltage tolerance up to 65 V and precise constant current regulation. The integrated switch reduces external component count compared to discrete solutions. Consider the WSON-8 package size for space-constrained designs. Verify that the required dimming interface aligns with the supported analog or PWM control options available on the device pins.

Part Context

This part belongs to the LM3414HV series of LED drivers, which are optimized for high-voltage inputs. It complements other variants like the LM3414HVSDEVAL/NOPB evaluation board by providing the core driving functionality. The series targets general-purpose LED lighting where efficiency and thermal management are critical performance factors.

Replacement Considerations

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