LT3492EUFD#TRPBF

LED Driver IC Overview

The LT3492EUFD#TRPBF is a triple output DC/DC converter designed as a constant-current source for driving LEDs. It operates in buck, boost, or buck-boost modes with an input voltage range of 3V to 30V. Each channel features internal switches rated at 600mA and 60V. The device supports adjustable switching frequencies between 330kHz and 2.1MHz. It provides True Color PWM dimming up to 3000:1 ratio via an external input. Output current is programmed using an external sense resistor with a threshold range of 10mV to 100mV. The component is housed in a 28-pin QFN package.

LED Driver IC Feature Summary

• True Color PWM Dimming delivers high contrast ratios
• Built-in gate driver for PMOS LED disconnect
• Three independent driver channels with integrated switches
• CTRL pin enables analog dimming and overtemperature protection

LED Driver IC Applications

• High current LED lighting systems
• Portable display backlighting
• Automotive interior illumination

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the EUFD suffix corresponds to the QFN-28 package variant. Ensure compatibility with the required thermal pad design for the exposed pad configuration. Check manufacturer documentation for any recent product change notifications affecting marking or materials.

LED Driver IC Selection Notes

Select this component for designs requiring three independent LED channels from a single controller. The wide input voltage range accommodates various power supply configurations. The adjustable frequency allows optimization of efficiency versus component size. Verify that the external MOSFETs match the built-in gate driver capabilities for optimal dimming performance.

LED Driver IC Part Context

This part belongs to the LT3492 series of triple output LED drivers from Analog Devices. It shares architectural similarities with other members like the LT3492EFE but differs in package type. The series is designed for applications needing precise current regulation and high-dynamic-range dimming without complex external circuitry.

LED Driver IC Replacement Considerations

LT3492EFE#TRPBF offers identical electrical specifications in a TSSOP-28 package. Substitution requires PCB footprint modification and thermal analysis adjustments due to package differences.