Power Integrations

TOP247FN

TOP247FN Description

The TOP247FN is an offline switcher flyback IC designed for high-efficiency power conversion applications. Manufactured by Power Integrations, this device is part of the Power Management (PMIC) category and is housed in a TO262-7C package. It features a breakdown voltage of 700V and a maximum power output of 165 watts, making it suitable for demanding power supply designs. The TOP247FN employs a flyback topology and offers a duty cycle of 66.5%, with a switching frequency range of 66kHz to 132kHz. It includes internal switches and provides essential control features such as frequency control, current limiting, over-temperature protection, and over-voltage protection. The device is RoHS compliant and REACH unaffected, ensuring it meets environmental and regulatory standards. Despite its obsolescence, the TOP247FN remains a reliable choice for specific applications due to its robust design and comprehensive feature set.

TOP247FN Features

• High Breakdown Voltage: The TOP247FN boasts a 700V breakdown voltage, enabling it to handle high-voltage inputs and ensuring reliable operation in demanding environments.
• Power Output: With a maximum power output of 165 watts, this IC is capable of delivering substantial power, making it suitable for a wide range of applications requiring high efficiency and performance.
• Frequency Control: The device incorporates frequency control features, allowing for precise regulation of the switching frequency within the range of 66kHz to 132kHz. This ensures optimal performance and minimizes electromagnetic interference (EMI).
• Comprehensive Protection: The TOP247FN includes current limiting, over-temperature, and over-voltage protection mechanisms, safeguarding the device and connected components from potential damage.
• Internal Switches: The inclusion of internal switches simplifies the design process and reduces the need for external components, leading to a more compact and cost-effective solution.
• Environmental Compliance: The device is RoHS compliant and REACH unaffected, aligning with environmental regulations and ensuring it can be used in a variety of markets without concern for compliance issues.
• Isolated Output: The TOP247FN offers isolated output, which is crucial for applications requiring galvanic isolation between the input and output stages, enhancing safety and reliability.

TOP247FN Applications

The TOP247FN is ideal for applications that demand high efficiency, robust performance, and comprehensive protection features. Some specific use cases include:

• Power Supplies: The high breakdown voltage and power output make it suitable for designing power supplies for various electronic devices, including consumer electronics, industrial equipment, and medical devices.
• Adapters and Chargers: Its ability to handle high voltage and deliver substantial power makes it a reliable choice for AC-DC adapters and chargers, ensuring efficient power conversion and reliable operation.
• Industrial Control Systems: The robust design and comprehensive protection features make it suitable for industrial control systems where reliability and safety are paramount.
• Medical Equipment: The isolated output and high efficiency are particularly beneficial for medical equipment, where safety and reliability are critical.

Conclusion of TOP247FN

The TOP247FN by Power Integrations is a versatile and reliable offline switcher flyback IC, offering a comprehensive set of features and protections. Despite its obsolescence, its high breakdown voltage, substantial power output, and robust design make it a suitable choice for applications requiring high efficiency and reliability. The inclusion of internal switches, frequency control, and comprehensive protection mechanisms further enhance its appeal. While newer models may offer additional features, the TOP247FN remains a reliable option for specific applications, ensuring continued relevance in the power management market.