LYT7504D

LED Driver IC Overview

The LYT7504D is a high-voltage integrated switch from the LinkSwitch-XT2 family, designed for offline flyback converters. It integrates a 725 V power MOSFET with primary-side regulation and control circuitry. The device supports universal AC input (85 VAC to 265 VAC) and operates at a switching frequency of 132 kHz. It provides constant voltage and constant current output capabilities with programmable output voltage and current limits. Key features include cycle-by-cycle current limiting, hysteretic thermal shutdown, and open-loop protection.

LED Driver IC Feature Summary

• Integrates a 725 V power MOSFET with primary-side regulation to eliminate optocouplers
• Provides accurate constant voltage and constant current output control
• Includes advanced protection mechanisms such as thermal shutdown and open-loop detection

LED Driver IC Applications

• Universal AC/DC adapters for consumer electronics
• Battery chargers for portable devices
• Standby power supplies for appliances

LED Driver IC Procurement Notes

Verify the specific suffix 'D' indicates the DIP-7 package variant when sourcing. Confirm that the component meets the required safety certifications for your target market. Ensure the design utilizes the recommended layout guidelines to maintain performance and reliability standards specified in the official datasheet.

LED Driver IC Selection Notes

Select this component for designs requiring high integration and minimal external components. It is suitable for applications needing precise CV/CC regulation without secondary side feedback circuits. Consider the thermal requirements and ensure adequate heat dissipation for the intended power level within the package constraints.

LED Driver IC Part Context

This part belongs to the LinkSwitch-XT2 family, which offers enhanced efficiency and reduced EMI compared to previous generations. It simplifies design by combining power switching and control logic into a single monolithic IC, reducing board space and component count for low-power offline applications.

LED Driver IC Replacement Considerations

Compatible replacements within the same family include LYT7502D and LYT7506D, offering different power levels. Verify pin compatibility and electrical specifications before substitution. Ensure the alternative part meets the same safety and regulatory requirements for the end application.