Power Integrations

TOP250FN

TOP250FN Description

The TOP250FN is an offline switch-mode power supply IC designed for flyback topology applications. Manufactured by Power Integrations, this device is part of the Power Management (PMIC) category and is housed in a TO262-7C package. Despite being marked as obsolete, the TOP250FN remains a robust solution for various power supply needs, offering a breakdown voltage of 700V and a maximum power output of 290W. The device features internal switches, frequency control, and comprehensive fault protection mechanisms, including current limiting, over-temperature, and over-voltage protection. With a switching frequency range of 66kHz to 132kHz and a duty cycle of 66.8%, the TOP250FN ensures efficient power conversion. The device is REACH unaffected and RoHS compliant, making it suitable for environmentally conscious applications. The through-hole mounting type and tube packaging further enhance its versatility and ease of integration into various electronic systems.

TOP250FN Features

• High Breakdown Voltage: The TOP250FN boasts a 700V breakdown voltage, enabling it to handle high-voltage applications with ease.
• Internal Switches: Equipped with internal switches, the device simplifies circuit design and reduces the need for external components.
• Frequency Control: The TOP250FN offers frequency control, allowing for precise regulation of the switching frequency to optimize performance and efficiency.
• Comprehensive Fault Protection: The device includes current limiting, over-temperature, and over-voltage protection, ensuring reliable operation and safeguarding against potential faults.
• Wide Switching Frequency Range: With a switching frequency range of 66kHz to 132kHz, the TOP250FN can be fine-tuned to meet specific application requirements.
• High Power Output: Capable of delivering up to 290W, the TOP250FN is suitable for high-power applications.
• Output Isolation: The device provides isolated output, enhancing safety and performance in various power supply designs.
• Environmental Compliance: The TOP250FN is REACH unaffected and RoHS compliant, making it suitable for environmentally conscious applications.
• Ease of Integration: The through-hole mounting type and tube packaging make the device easy to integrate into a wide range of electronic systems.

TOP250FN Applications

The TOP250FN is ideal for a variety of applications due to its high power output, wide switching frequency range, and comprehensive fault protection. Some specific use cases include:

• Power Supplies: The device is well-suited for offline switch-mode power supplies, providing efficient power conversion and reliable operation.
• Adapters and Chargers: The TOP250FN can be used in high-power adapters and chargers, ensuring stable power delivery and protection against over-voltage and over-temperature conditions.
• Industrial Equipment: The high breakdown voltage and internal switches make the device suitable for industrial applications where robustness and reliability are critical.
• Consumer Electronics: The device's ability to deliver high power and its comprehensive fault protection make it ideal for consumer electronics that require stable and efficient power supply solutions.

Conclusion of TOP250FN

The TOP250FN, despite being marked as obsolete, remains a valuable solution for high-power, offline switch-mode power supply applications. Its high breakdown voltage, internal switches, frequency control, and comprehensive fault protection mechanisms make it a reliable and efficient choice. The device's environmental compliance and ease of integration further enhance its appeal. While newer models may offer additional features, the TOP250FN continues to provide a robust and versatile solution for a wide range of power supply needs.