Power Integrations

TOP257YN  

AC DC Converters, Offline Switches

TOP257YN Description

The TOP257YN is a high-performance, flyback topology offline switch integrated circuit (IC) manufactured by Power Integrations. This device is designed for AC-DC converter applications and offers a range of advanced features to ensure reliable and efficient power conversion. With a power rating of 157W and a breakdown voltage of 700V, the TOP257YN is well-suited for a variety of demanding applications.

TOP257YN Features

• Flyback Topology: The TOP257YN utilizes a flyback topology, which is known for its simplicity and efficiency in power conversion applications.
• Internal Switches: This IC features internal switches, reducing the need for external components and simplifying the overall design.
• Fault Protection: The TOP257YN offers comprehensive fault protection, including current limiting, over-temperature, and over-voltage protection, ensuring safe and reliable operation.
• Switching Frequency: This device supports switching frequencies of 66kHz and 132kHz, providing flexibility in design and enabling efficient power conversion.
• Output Isolation: The TOP257YN offers isolated outputs, which is crucial for maintaining safety and performance in various applications.
• RoHS Compliance: This IC is compliant with the Restriction of Hazardous Substances (RoHS) directive, making it suitable for use in environmentally conscious products.

TOP257YN Applications

The TOP257YN is ideal for a wide range of applications, including:

• Telecommunications Equipment: Due to its high breakdown voltage and fault protection features, the TOP257YN is well-suited for powering telecommunications equipment.
• Industrial Control Systems: The device's reliability and efficiency make it an excellent choice for industrial control systems that require stable power supplies.
• Medical Devices: The TOP257YN's isolated outputs and fault protection features make it suitable for powering medical devices that require a high level of safety and reliability.
• Consumer Electronics: This IC can be used in various consumer electronics applications, such as power supplies for home appliances and entertainment systems.

Conclusion of TOP257YN

In conclusion, the TOP257YN is a versatile and high-performance offline switch IC that offers a range of advanced features and benefits. Its flyback topology, internal switches, and comprehensive fault protection make it an excellent choice for a variety of demanding applications. With its RoHS compliance and isolated outputs, the TOP257YN is well-suited for use in environmentally conscious and safety-critical products.

TOP257YN Documents

Download datasheets and manufacturer documentation for TOP257YN

PCN Assembly/Origin :

HALT 26/Jan/2016      

Datasheets :

TOP252-62      

Reference Design Library :

DER-187: 13V @ 2.69A, 90 ~ 264 VAC in