LT3474EFE-1#PBF

LED Driver IC Overview

The LT3474EFE-1#PBF is a single-channel step-down LED driver IC manufactured by Analog Devices Inc. It operates within an input voltage range of 4 V to 36 V and delivers a regulated output current of 1 A. The device features an adjustable switching frequency from 200 kHz to 2 MHz, housed in a 16-pin TSSOP package with exposed pad. It supports PWM dimming and includes open LED protection. The component functions as a DC-DC regulator suitable for lighting applications.

LED Driver IC Feature Summary

• Integrates a synchronous buck converter topology for efficient LED current regulation
• Supports external PWM dimming control for brightness adjustment
• Includes circuitry for open LED fault detection and protection

LED Driver IC Applications

• LED backlighting systems
• General LED illumination drivers
• Automotive lighting circuits

LED Driver IC Procurement Notes

Verify the specific suffix E-1 against official Analog Devices documentation to confirm pinout and electrical characteristics match design requirements. Confirm RoHS compliance status via the latest datasheet revision. Check current supply chain availability as distribution channels may indicate limited stock or restricted sales regions for this specific part number.

LED Driver IC Selection Notes

Select this component when a single-channel, high-efficiency buck LED driver is required with input voltages up to 36 V. The adjustable frequency allows optimization for external component size versus noise. Ensure the thermal performance of the TSSOP-EP package meets the application's heat dissipation needs under continuous 1 A load conditions.

LED Driver IC Part Context

This part belongs to the LT3474 series of LED drivers. It is functionally similar to LT3474IFE-1#PBF but differs in the industrial temperature grade rating compared to the extended grade variant. Both share the same core architecture and pinout configuration within the TSSOP-16 package family.

LED Driver IC Replacement Considerations

LT3474IFE-1#PBF serves as a parameter-equivalent alternative within the same manufacturer line, differing primarily in operating temperature range specifications.