LTC3452EUF#TRPBF

LED Driver IC Overview

The LTC3452EUF#TRPBF is a specialized LED driver and DC-DC regulator manufactured by Analog Devices Inc. It integrates seven independent output channels within a single package, combining step-down (buck) and step-up (boost) converter topologies to support complex lighting architectures. The device features configurable constant current outputs ranging from 20mA to 150mA, adjustable via external resistors without requiring microcontroller intervention. It operates within an extended industrial temperature range of -40°C to 125°C and utilizes a 20-lead QFN package measuring 4mm x 4mm x 0.75mm with an exposed pad for thermal management.

LED Driver IC Feature Summary

• Integrates seven independent regulated outputs combining buck and boost converters for flexible LED string configurations
• Provides programmable constant current regulation adjustable between 20mA and 150mA using simple external resistor networks
• Eliminates the need for microcontroller control in standard LED driving applications through dedicated hardware configuration

LED Driver IC Applications

• LED backlighting systems for displays
• General-purpose LED lighting solutions
• Indicator light circuits

LED Driver IC Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing components. Confirm that the 20-lead QFN footprint matches the target PCB layout dimensions. Ensure thermal design accounts for the exposed pad requirements specified in the datasheet to maintain reliability within the stated operating temperature range.

LED Driver IC Selection Notes

Select this component when a multi-channel power solution is required to drive LEDs with varying voltage drops across different strings. The integrated buck and boost capabilities allow for efficient power conversion regardless of whether the input voltage is higher or lower than the LED forward voltage. Consider the 20-QFN package size constraints during mechanical design.

LED Driver IC Part Context

This part belongs to the LTC3452 series of power management ICs designed specifically for lighting applications. It consolidates multiple switching regulators into a compact form factor, reducing the overall bill of materials and board space compared to discrete solutions. The series targets designers seeking high integration levels for display and illumination projects.

LED Driver IC Replacement Considerations

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