LT3797EUKG#TRPBF

LED Driver IC Overview

The LT3797EUKG#TRPBF is a triple output DC/DC controller designed to drive three strings of LEDs. It features a fixed frequency, current mode architecture for stable operation. The device supports Boost, Buck, Buck-Boost, Flyback, and SEPIC topologies. Input voltage ranges from 2.5 V to 40 V, with an output voltage up to 40 V. Output current capability is 5 A per channel. Operating frequency spans 100 kHz to 1 MHz. Supply current is 750 uA maximum. It operates between -40°C and +125°C. Package is 52-QFN (7x8).

LED Driver IC Feature Summary

• Triple output control for driving three independent LED strings.
• Supports multiple converter topologies including Boost, Buck, Buck-Boost, Flyback, and SEPIC.
• Integrates PWM dimming functionality for brightness control.
• Includes open LED protection mechanisms.

LED Driver IC Applications

• LED lighting driver systems requiring multiple channels.
• Industrial illumination applications utilizing various DC/DC topologies.
• Automotive lighting circuits compatible with wide input voltage ranges.

LED Driver IC Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm package marking matches the 52-QFN specification. Request official datasheets and test reports to ensure compliance with electrical parameters. Check RoHS certification status prior to integration. Validate supply chain documentation against manufacturer records.

LED Driver IC Selection Notes

Select this controller when designing multi-string LED drivers requiring flexible topology support. Suitable for applications needing simultaneous control of three LED channels. Consider thermal management requirements due to QFN package constraints. Ensure input voltage range aligns with system power supply specifications. Evaluate switching frequency settings for EMI compliance.

LED Driver IC Part Context

Part of the LT3797 series from Analog Devices, focusing on LED lighting solutions. The series provides integrated control for complex LED arrays. Designed for high reliability in industrial and automotive environments. Complements other PMIC offerings for comprehensive power management.

LED Driver IC Replacement Considerations

LT3797EUKG#PBF offers identical electrical specifications in a tube package instead of tape and reel. Verify pinout compatibility and thermal performance before substitution. No functional differences exist between the suffix variants regarding core controller operations.