Power Integrations

TOP255PG  

AC DC Converters, Offline Switches

TOP255PG Description

The TOP255PG is an offline switch IC designed for flyback topology applications, offering a robust and efficient solution for AC-DC conversion. Manufactured by Power Integrations, this device is housed in a through-hole package, specifically an 8DIP tube, making it suitable for a variety of industrial and consumer electronics applications. Despite its obsolete status, the TOP255PG remains a reliable choice for power conversion needs up to 30 watts.

TOP255PG Features

• Topology and Configuration: The TOP255PG utilizes a flyback topology, which is ideal for isolated power supplies with a single output. This topology ensures high efficiency and compact design, making it suitable for applications where space is a constraint.
• Voltage and Power Handling: With a breakdown voltage of 700V, the TOP255PG can handle high input voltages, ensuring reliable operation across a wide range of AC inputs. It is capable of delivering up to 30 watts of power, making it suitable for moderate power applications.
• Internal Switch and Duty Cycle: The device features an internal switch, simplifying the design and reducing the component count. The duty cycle of 78% ensures efficient power transfer and minimizes energy loss.
• Fault Protections: The TOP255PG includes comprehensive fault protections such as current limiting, over-temperature, and over-voltage protection. These features enhance the reliability and longevity of the device, safeguarding it against common power-related issues.
• Switching Frequency: Operating at a switching frequency of 66kHz, the TOP255PG ensures efficient power conversion with minimal electromagnetic interference (EMI).
• Compliance and Packaging: The TOP255PG is REACH unaffected and RoHS compliant, adhering to stringent environmental regulations. It is packaged in a tube, which provides robust protection during handling and storage.

TOP255PG Applications

The TOP255PG is well-suited for a variety of applications that require efficient and reliable power conversion. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as chargers, adapters, and small appliances where compact size and high efficiency are critical.
• Industrial Equipment: Suitable for powering control systems, sensors, and other low-power industrial devices that require isolated power supplies.
• Medical Devices: Given its high reliability and safety features, the TOP255PG can be used in medical equipment where consistent power delivery is essential.
• Telecommunications: Useful for powering remote communication devices and base stations, ensuring stable operation under varying input conditions.

Conclusion of TOP255PG

The TOP255PG, despite being marked as obsolete, remains a viable option for applications requiring a reliable and efficient offline switch. Its robust design, comprehensive fault protections, and compliance with environmental standards make it a standout choice in its category. For engineers and designers seeking a compact, high-efficiency solution for their power conversion needs, the TOP255PG offers a proven and effective alternative.

TOP255PG Documents

Download datasheets and manufacturer documentation for TOP255PG

PCN Assembly/Origin :

Molding Compound 18/Oct/2019      

Datasheets :

TOP252-62      

PCN Obsolescence/ EOL :

Mult Dev EOL 16/Nov/2021      

PCN Design/Specification :

Design Chgs 29/Jul/2016       LNK/TNY/TOP 03/Mar/2022