onsemi

FSDM311A

FSDM311A Description

The FSDM311A is an offline switch IC designed for flyback topology applications, manufactured by onsemi. This device is part of the FPS™ series and is housed in a through-hole package, specifically an 8DIP tube. Despite being marked as obsolete, the FSDM311A remains a robust solution for AC-DC converters and offline switch applications. It operates within a supply voltage range of 7V to 20V and features a breakdown voltage of 650V, ensuring reliable performance in high-voltage environments. The device is REACH unaffected and RoHS3 compliant, aligning with environmental and regulatory standards.

FSDM311A Features

The FSDM311A boasts several key technical specifications and performance benefits:

• Switching Frequency: Operates at a switching frequency of 67kHz, providing efficient power conversion.
• Start-Up Voltage: Requires a start-up voltage of 9V, ensuring reliable operation even under low input conditions.
• Output Isolation: Offers isolated output, enhancing safety and performance in various applications.
• Power Capability: Capable of delivering up to 13W of power, making it suitable for a range of power supply needs.
• Fault Protection: Includes comprehensive fault protection mechanisms such as current limiting, overload, over-temperature, and over-voltage protection, ensuring robustness and reliability.
• Duty Cycle: Features a duty cycle of 67%, optimizing efficiency and performance in flyback topology.
• Internal Switch: Equipped with an internal switch, simplifying design and reducing component count.
• Moisture Sensitivity Level: Not applicable, indicating it is not sensitive to moisture, which is beneficial for various environmental conditions.

FSDM311A Applications

The FSDM311A is ideal for a variety of applications, including:

• AC-DC Converters: Suitable for designing efficient and reliable AC-DC power supplies.
• Offline Switch Applications: Ideal for applications requiring an offline switch with high efficiency and robust protection.
• Consumer Electronics: Can be used in power supplies for consumer electronics where compact size and high efficiency are crucial.
• Industrial Equipment: Applicable in industrial settings where reliable power conversion and protection are essential.

Conclusion of FSDM311A

The FSDM311A, despite being marked as obsolete, remains a valuable component in the electronics industry. Its robust design, comprehensive fault protection, and high efficiency make it an ideal choice for AC-DC converters and offline switch applications. The device's compliance with REACH and RoHS3 standards ensures it meets environmental and regulatory requirements. With its internal switch, isolated output, and comprehensive fault protection, the FSDM311A stands out as a reliable and efficient solution for a variety of power supply needs.