LT8374RUFM#WTRPBF

LED Driver IC Overview

The LT8374RUFM#WTRPBF is a high-efficiency, monolithic synchronous step-down DC/DC converter designed for LED lighting applications. It features a wide input voltage range from 6.5V to 60V and delivers up to 1.2A output current. The device operates at fixed frequencies of 330kHz or 2MHz and supports external synchronization via the SYNC/SPRD pin. It includes spread spectrum frequency modulation (SSFM) to reduce EMI and offers 20:1 analog, duty cycle, or PWM dimming control. The IC is housed in a 4mm x 4mm 16-lead QFN package and is AEC-Q100 qualified for automotive use.

LED Driver IC Feature Summary

• Synchronous buck topology with wide 6.5V to 60V input range
• Integrated 1.2A switch current capability
• Supports 330kHz or 2MHz internal switching frequencies
• Includes spread spectrum frequency modulation for EMI reduction

LED Driver IC Applications

• Automotive exterior and interior lighting systems
• Matrix LED illumination arrays
• General-purpose LED driver circuits
• Constant current LED string sources

LED Driver IC Procurement Notes

Verify the specific suffix designation when ordering, as variants such as #WPBF and #WTRPBF may differ in packaging format while retaining identical electrical specifications. Confirm that the required switching frequency option matches the specific sub-model variant intended for the design. Ensure the application environment meets the AEC-Q100 qualification requirements if deployed in automotive contexts. Cross-reference the datasheet revision history to confirm compatibility with existing thermal management designs.

LED Driver IC Selection Notes

Select this component for designs requiring a wide input voltage window up to 60V with compact footprint constraints. The integrated synchronous rectification simplifies the bill of materials by reducing external component count. Consider the available switching frequency options based on inductor size requirements and electromagnetic interference sensitivity. The built-in compensation and protection features make it suitable for rapid prototyping without extensive external circuit tuning.

LED Driver IC Part Context

This part belongs to the LT8374 family of synchronous step-down converters from Analog Devices. It shares architectural similarities with other members like the LT8374-1 but differs in specific switching frequency configurations. The family is characterized by peak current mode control and high efficiency across broad load ranges. Related devices in the portfolio include the LT8376 and LT8386 series, which offer variations in voltage ratings and channel counts.

LED Driver IC Replacement Considerations

Direct functional substitutes within the same package include the LT8374RUFM#WPBF and LT8374RUFM-1#WPBF. These parts share identical pinouts and core electrical characteristics, differing primarily in shipping configuration or specific frequency selection. Verify thermal performance and inductor saturation currents when transitioning between these specific suffixes.