LT8393JFE#PBF

LED Driver IC Overview

The LT8393JFE#PBF is a synchronous four-switch buck-boost LED controller manufactured by Analog Devices Inc. It regulates LED current when the input voltage is above, below, or equal to the output voltage. The device operates with an input voltage range of 4 V to 60 V and supports output voltages up to 100 V. It features a programmable switching frequency between 350 kHz and 2 MHz. The controller includes analog and PWM dimming capabilities and provides open LED protection. It is housed in a 28-lead TSSOP package with an exposed pad.

LED Driver IC Feature Summary

• Synchronous four-switch buck-boost topology for wide input-output voltage differential handling
• Integrated analog and pulse-width modulation (PWM) dimming control
• Built-in open LED protection circuitry
• Programmable switching frequency operation

LED Driver IC Applications

• LED lighting systems requiring constant current regulation
• Automotive exterior lighting applications
• Industrial high-voltage LED drivers

LED Driver IC Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm package integrity and pin alignment upon receipt. Ensure storage conditions meet manufacturer specifications to prevent moisture damage. Review the latest datasheet for any revisions affecting electrical characteristics or mechanical dimensions before final integration.

LED Driver IC Selection Notes

Select this component for applications where input voltage fluctuates significantly relative to the required LED forward voltage. The synchronous buck-boost architecture ensures high efficiency across varying line conditions. Consider the thermal performance of the TSSOP package and ensure adequate PCB copper area for heat dissipation. Verify that the required dimming method aligns with the controller's analog and PWM inputs.

LED Driver IC Part Context

This part belongs to the LT8393 family of LED controllers from Analog Devices. It is designed specifically for driving LEDs in scenarios where the power source voltage may be higher or lower than the load voltage. The JFE suffix indicates a specific temperature grade and packaging variant within the broader LT8393 product line.

LED Driver IC Replacement Considerations

Direct replacements must match the 28-TSSOP package and support 60V input with buck-boost topology. Verify compatibility with existing dimming signals and thermal management requirements. Cross-reference electrical parameters such as switching frequency range and output current limits with the original design specifications.