LT3475EFE#TRPBF

LED Driver IC Overview

The LT3475EFE#TRPBF is a dual-channel step-down LED driver IC manufactured by Analog Devices Inc. It operates with an input voltage range of 4 V to 36 V and provides two independent outputs, each capable of delivering up to 1.5 A. The device utilizes a buck topology with an adjustable switching frequency ranging from 200 kHz to 2 MHz. It features PWM dimming control and open LED protection mechanisms. The component is housed in a TSSOP-20 package and supports surface mount installation.

LED Driver IC Feature Summary

• Dual-channel architecture for independent LED current regulation
• Integrated PWM dimming capability for brightness control
• Built-in open LED protection circuitry
• Adjustable switching frequency for optimized design flexibility

LED Driver IC Applications

• LED lighting systems requiring dual-zone control
• Portable electronic devices utilizing high-efficiency DC/DC conversion
• Industrial illumination applications with wide input voltage requirements

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the manufacturer designation remains Analog Devices Inc., as Linear Technology was acquired. Ensure compatibility with the required operating temperature range of -40°C to +85°C for your specific application environment before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when designing circuits requiring two isolated or non-isolated LED channels driven from a single high-voltage source. The wide input voltage range accommodates various power supply configurations. Consider the thermal performance within the TSSOP-20 package relative to the total output current load to ensure reliable operation under maximum duty cycles.

LED Driver IC Part Context

This part belongs to the LT3475 series of LED drivers designed for high-efficiency lighting solutions. It complements other Analog Devices power management products by offering integrated control for multiple LEDs without external MOSFETs. The series focuses on simplifying board space and reducing component count in compact lighting designs.

LED Driver IC Replacement Considerations

LT3475EFE#PBF serves as the tube-packaged equivalent of this component. Both variants share identical electrical specifications and functionality, differing only in shipping packaging format.