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TOP261LN

TOP261LN Description

The TOP261LN is an offline switch flyback IC designed by Power Integrations, a leading manufacturer in the power management industry. This device is part of the Power Management (PMIC) category and is housed in a 7FESIP package. The TOP261LN features a flyback topology, making it suitable for a wide range of isolated power supply applications. It is equipped with an internal switch capable of handling up to 700V breakdown voltage, ensuring robustness and reliability in high-voltage environments. The device supports a maximum power output of 244 watts, making it ideal for demanding applications requiring efficient power conversion. The TOP261LN operates with a switching frequency of 66kHz or 132kHz, allowing for flexibility in design and optimization of performance. It also includes comprehensive fault protection mechanisms such as current limiting, over-temperature, and over-voltage protection, ensuring safe and reliable operation under various conditions. The device is RoHS compliant and REACH unaffected, adhering to environmental and regulatory standards. It is available in a through-hole mounting type and is housed in a tube package, making it easy to integrate into various circuit designs. The TOP261LN has a duty cycle of 78%, providing efficient power delivery. It is classified under HTSUS code 8542.39.0001 and has a moisture sensitivity level (MSL) of 1, indicating unlimited storage conditions without risk of moisture damage.

TOP261LN Features

The TOP261LN offers several unique features that set it apart from similar models:

• High Breakdown Voltage: With a 700V breakdown voltage, the TOP261LN can handle high-voltage applications with ease, ensuring reliable performance in demanding environments.
• Internal Switch: The inclusion of an internal switch simplifies the design process, reducing the need for external components and lowering overall system cost.
• Comprehensive Fault Protection: The device features current limiting, over-temperature, and over-voltage protection, safeguarding the circuit from potential faults and ensuring long-term reliability.
• Flexible Switching Frequency: The TOP261LN supports switching frequencies of 66kHz and 132kHz, providing designers with the flexibility to optimize performance based on specific application requirements.
• High Power Output: Capable of delivering up to 244 watts, the TOP261LN is well-suited for applications requiring high power output while maintaining efficiency.
• Isolated Output: The device provides isolated output, ensuring safety and reliability in applications where electrical isolation is critical.
• Environmental Compliance: The TOP261LN is RoHS compliant and REACH unaffected, making it suitable for use in environmentally conscious designs.
• Easy Integration: The through-hole mounting type and tube packaging make the device easy to integrate into various circuit designs, facilitating straightforward assembly and production processes.

TOP261LN Applications

The TOP261LN is ideal for a variety of applications due to its robust design and versatile features:

• Power Supplies: The device is well-suited for isolated power supply applications, providing efficient power conversion and reliable operation.
• Adapters and Chargers: The high power output and flexible switching frequency make the TOP261LN suitable for designing efficient adapters and chargers for various electronic devices.
• Industrial Equipment: The high breakdown voltage and comprehensive fault protection mechanisms ensure reliable performance in industrial applications where high voltage and robustness are critical.
• Medical Devices: The isolated output and environmental compliance make the TOP261LN suitable for use in medical devices where safety and reliability are paramount.
• Telecommunications: The device's high power output and efficient operation make it ideal for power supply applications in the telecommunications industry.

Conclusion of TOP261LN

The TOP261LN is a versatile and reliable offline switch flyback IC designed for high-voltage, high-power applications. Its unique features, such as the high breakdown voltage, internal switch, and comprehensive fault protection, provide significant advantages over similar models. The device's flexibility in switching frequency and power output makes it suitable for a wide range of applications, from power supplies and adapters to industrial and medical equipment. While the TOP261LN is currently marked as obsolete, its robust design and performance benefits make it a valuable component for existing designs and legacy systems. For new projects, designers may consider exploring alternative models from Power Integrations' extensive portfolio to meet their specific requirements.