Power Integrations

LYT4317L  

AC DC Converters, Offline Switches

LYT4317L Description

The LYT4317L is an offline switch-mode power supply controller designed for high-efficiency power conversion applications. Manufactured by Power Integrations, this device is part of the Power Management Integrated Circuits (PMIC) category. It features a through-hole mounting type, making it suitable for applications where robust mechanical stability is required. The LYT4317L offers a breakdown voltage of 725V, ensuring reliable operation in high-voltage environments. With a maximum power rating of 50 watts and a switching frequency of 140kHz, it provides efficient power delivery while maintaining a compact design. The device includes internal switches and offers a duty cycle of up to 99.9%, enabling precise control over power conversion processes. The LYT4317L is housed in a tube package, which enhances its durability and ease of handling. It also features isolated output, ensuring safety and reliability in various applications. The product is currently marked as obsolete, but it remains a valuable option for legacy systems and specific applications where its unique features are required. With an ECCN classification of EAR99 and an HTSUS code of 8542.39.0001, the LYT4317L adheres to international trade regulations. Its moisture sensitivity level (MSL) is rated at 1 (unlimited), indicating that it can be safely stored and handled without special precautions.

LYT4317L Features

The LYT4317L boasts several key features that set it apart from other power management ICs:

• High Breakdown Voltage: With a breakdown voltage of 725V, the LYT4317L is designed to handle high-voltage applications with ease, making it ideal for power supplies that require robust voltage handling capabilities.
• Efficient Power Conversion: The device offers a maximum power rating of 50 watts and a switching frequency of 140kHz, ensuring efficient power delivery and minimal energy loss.
• Internal Switches: The inclusion of internal switches simplifies the design process and reduces the number of external components required, leading to a more compact and cost-effective solution.
• High Duty Cycle: A duty cycle of up to 99.9% allows for precise control over power conversion, enabling the LYT4317L to deliver stable and reliable power output.
• Isolated Output: The isolated output feature enhances safety and reliability, making the LYT4317L suitable for applications where electrical isolation is critical.
• Through-Hole Mounting: The through-hole mounting type provides mechanical stability and durability, making it ideal for applications that require robust physical construction.
• Moisture Sensitivity Level 1: With an MSL rating of 1 (unlimited), the LYT4317L can be safely stored and handled without the need for special moisture protection measures, simplifying the manufacturing and assembly processes.

LYT4317L Applications

The LYT4317L is well-suited for a variety of applications due to its robust design and high-performance capabilities. Some of the key applications include:

• Power Supplies: The high breakdown voltage and efficient power conversion capabilities make the LYT4317L an ideal choice for offline power supplies, including those used in consumer electronics, industrial equipment, and telecommunications infrastructure.
• Adapters and Chargers: The compact design and through-hole mounting type make it suitable for use in adapters and chargers, where space constraints and mechanical stability are important considerations.
• Energy-Efficient Systems: The high duty cycle and efficient power delivery capabilities enable the LYT4317L to be used in energy-efficient systems, helping to reduce power consumption and improve overall system efficiency.
• Legacy Systems: Despite its obsolete status, the LYT4317L remains a valuable option for legacy systems that require its unique features and capabilities, ensuring continued support for existing equipment.

Conclusion of LYT4317L

The LYT4317L is a versatile and robust offline switch-mode power supply controller that offers several unique features and advantages over similar models. Its high breakdown voltage, efficient power conversion capabilities, and internal switches make it an ideal choice for a variety of applications, including power supplies, adapters, chargers, and energy-efficient systems. The through-hole mounting type and moisture sensitivity level 1 rating further enhance its durability and ease of handling. Although the LYT4317L is currently marked as obsolete, it remains a valuable option for legacy systems and specific applications where its unique features are required.

LYT4317L Documents

Download datasheets and manufacturer documentation for LYT4317L

Datasheets :

LYT4211-18/4311-18      

PCN Other :

Multiple Changes 11/Nov/2014      

Design Resources :

Lighting Product Selector