LT3796EFE#TRPBF

LED Driver IC Overview

The LT3796EFE#TRPBF is a high-voltage DC/DC controller designed for driving LEDs with constant-current or constant-voltage regulation. It supports SEPIC, step-down (buck), and step-up (boost) topologies within a 100V input range. The device operates on a supply voltage between 6V and 100V, featuring an adjustable switching frequency from 100kHz to 1MHz. It integrates analog and PWM dimming capabilities and includes dual current sense inputs for precise control. Packaged in a 28-TSSOP-EP with exposed pad, it functions across a junction temperature range of -40°C to 125°C.

LED Driver IC Feature Summary

• Supports multiple converter topologies including SEPIC, buck, and boost for flexible LED drive configurations
• Enables precise light control through combined analog and pulse-width modulation dimming methods
• Incorporates dual current sense inputs to facilitate accurate constant-current regulation
• Operates at high voltages up to 100V, suitable for demanding lighting applications

LED Driver IC Applications

• LED lighting systems requiring constant-current regulation
• Display backlighting drivers utilizing high-voltage sources
• Battery charger circuits employing buck-boost conversion
• Current-limited voltage regulator designs

LED Driver IC Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the component matches the 28-TSSOP-EP package outline. Ensure compatibility with the intended switching frequency range. Check for RoHS compliance documentation if required by your manufacturing standards. Validate that the 100V rating aligns with your system's maximum input voltage constraints.

LED Driver IC Selection Notes

Select this controller when designing LED drivers that require operation above standard low-voltage limits. It is appropriate for applications needing both buck and boost capabilities in a single stage. Consider the dual current sense feature if high accuracy is critical. Evaluate the thermal performance requirements given the exposed pad package. Ensure the control loop stability matches the chosen inductor and capacitor values.

LED Driver IC Part Context

This component belongs to the LT3796 family of high-voltage LED controllers manufactured by Analog Devices Inc. It is functionally similar to the LT3796EFE#PBF, differing primarily in packaging format. The device is part of the True Color PWM series, emphasizing color consistency in lighting applications. It serves as a core power management IC for complex LED architectures.

LED Driver IC Replacement Considerations

The LT3796EFE#PBF is a direct pin-compatible alternative available in a tube package instead of tape-and-reel. Verify that any substitute maintains the same 28-TSSOP-EP footprint and electrical specifications. Ensure the replacement supports the required 100V operating voltage and topology flexibility.