LTC3783EFE#PBF

LED Driver IC Overview

The LTC3783EFE#PBF is a current mode LED driver and switching controller designed for boost, flyback, and SEPIC topologies. It drives both an N-channel power MOSFET and an N-channel load PWM switch. The device operates with an input voltage range of 3V to 36V and supports switching frequencies from 20kHz to 1MHz. It features analog and PWM dimming capabilities, achieving digital dimming ratios up to 3000:1 without color shift. The component is housed in a 16-lead TSSOP package with exposed pad and functions within a junction temperature range of -40°C to 125°C.

LED Driver IC Feature Summary

• Supports multiple converter topologies including boost, flyback, and SEPIC configurations
• Enables high-ratio digital PWM dimming to prevent LED color shift
• Integrates control for external N-channel power MOSFET and load switches

LED Driver IC Applications

• LED lighting systems requiring precise current regulation
• Boost converter designs for step-up voltage applications
• Flyback converter implementations for isolated power supplies
• SEPIC converter circuits for varying input voltage ranges

LED Driver IC Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm pinout and thermal characteristics. Ensure compatibility with external MOSFET gate drive requirements. Confirm RoHS compliance status through official Analog Devices channels prior to integration into production assemblies.

LED Driver IC Selection Notes

Select this controller for applications requiring flexible topology support beyond standard buck converters. Evaluate the need for high-dimming ratios and color stability in LED driving scenarios. Consider the operating frequency range when designing external passive components for optimal efficiency and transient response.

LED Driver IC Part Context

This component belongs to the LTC3783 family of switching controllers manufactured by Analog Devices Inc. It is distinct from linear regulators like the LT3083 or synchronous buck controllers such as the LTC3778. The part serves specialized roles in non-isolated and isolated DC-DC conversion architectures.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.