Power Integrations

LYT4221E  

AC DC Converters, Offline Switches

LYT4221E Description

The LYT4221E is an offline switch IC designed for AC-DC conversion applications, manufactured by Power Integrations. This component is housed in a Tube package and features a Through Hole mounting type, making it suitable for a variety of power supply designs. The LYT4221E offers a breakdown voltage of 725V, ensuring robustness and reliability in high-voltage applications. It is capable of delivering up to 12 watts of power with a switching frequency of 140kHz, providing efficient energy conversion. The device includes internal switches, which simplifies the design process and reduces the overall component count. The LYT4221E also features a duty cycle of 99.9%, allowing for high-efficiency power delivery.

LYT4221E Features

• High Breakdown Voltage: With a breakdown voltage of 725V, the LYT4221E is well-suited for applications requiring high voltage handling capabilities.
• Efficient Power Delivery: The device can deliver up to 12 watts of power with a switching frequency of 140kHz, ensuring efficient energy conversion and minimal power loss.
• Internal Switches: The inclusion of internal switches simplifies the design process, reducing the need for additional components and lowering overall system complexity.
• High Duty Cycle: A duty cycle of 99.9% allows for high-efficiency power delivery, making the LYT4221E an ideal choice for applications where energy efficiency is critical.
• Output Isolation: The LYT4221E provides isolated output, ensuring safety and reliability in various power supply applications.
• Compliance and Safety: The device is REACH unaffected and RoHS compliant, meeting industry standards for environmental and safety regulations.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the LYT4221E is suitable for a wide range of manufacturing environments without the need for special handling precautions.

LYT4221E Applications

The LYT4221E is ideal for a variety of applications requiring efficient AC-DC conversion, including:

• Power Supplies: Suitable for designing efficient power supplies for consumer electronics, industrial equipment, and medical devices.
• Adapters and Chargers: Ideal for creating compact and efficient adapters and chargers for various electronic devices.
• LED Lighting: Can be used in LED lighting applications where high efficiency and reliability are required.
• Telecommunications: Applicable in telecom infrastructure where robust power conversion and minimal power loss are essential.

Conclusion of LYT4221E

The LYT4221E is a versatile and efficient offline switch IC designed for AC-DC conversion applications. Its high breakdown voltage, efficient power delivery, and internal switches make it an excellent choice for a wide range of power supply designs. The device's compliance with industry standards and safety regulations ensures its suitability for various manufacturing environments. While the LYT4221E is marked as obsolete, it remains a reliable option for applications requiring robust and efficient power conversion.

LYT4221E Documents

Download datasheets and manufacturer documentation for LYT4221E

PCN Assembly/Origin :

Added Assembly Site 10/Jul/2023      

Datasheets :

LYTSwitch-4 Family      

PCN Other :

Multiple Changes 11/Nov/2014      

Design Resources :

Lighting Product Selector      

PCN Obsolescence/ EOL :

LYTSwitch4 30-May-2022