LT3475EFE-1#PBF

LED Driver IC Overview

The LT3475EFE-1#PBF is a dual-channel, non-isolated LED driver IC from Analog Devices. It utilizes a buck topology to regulate current for two independent LED channels with a maximum output current of 1.5 A per channel. The device operates within an input voltage range of 4 V to 36 V and supports adjustable switching frequencies between 200 kHz and 2 MHz. It features PWM dimming capabilities and open LED protection. The component is housed in a 20-pin TSSOP package with exposed pad (TSSOP-20) and is rated for operation between -40°C and +85°C.

LED Driver IC Feature Summary

• Dual-channel buck architecture for independent LED regulation
• Integrated PWM dimming control interface
• Built-in open LED fault protection mechanism

LED Driver IC Applications

• LED lighting driver circuits
• Backlight power management systems
• General-purpose DC-DC step-down applications

LED Driver IC Procurement Notes

Verify the specific suffix configuration against official Analog Devices documentation to ensure correct pinout and functional alignment. Confirm that the TSSOP-20 package variant matches the design requirements. Cross-reference the datasheet specifications for thermal performance and electrical limits prior to integration. Ensure compliance with RoHS standards as indicated in the product declaration.

LED Driver IC Selection Notes

Select this component when a dual-output solution is required within a single package footprint. The wide input voltage range accommodates various supply rails. Consider the thermal dissipation characteristics of the exposed pad package for high-current applications. Verify that the 1.5 A per channel limit meets the load requirements without exceeding safe operating areas.

LED Driver IC Part Context

This part belongs to the LT3475 series of LED drivers. It shares the core functionality with variants such as LT3475IFE#PBF but differs in specific ordering suffixes which may denote package type or temperature grade variations. It is distinct from single-channel counterparts like the LT3474 series.

LED Driver IC Replacement Considerations

LT3475IFE#PBF

LED Driver IC FAQ

What is the switching frequency range?

The switching frequency is adjustable from 200 kHz to 2 MHz.

Does the device support dimming?

Yes, it includes integrated PWM dimming capability.