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FSFR1900

FSFR1900 Description

The FSFR1900 is an offline switch-mode half-bridge power management IC designed for high-efficiency power conversion applications. Manufactured by Fairchild Semiconductor (now part of onsemi), this IC is part of the FSFR series and is housed in a through-hole package, specifically a tube. It is rated for a power output of 300 watts and features a voltage breakdown of capability up to 500 volts. The FSFR1900 operates with a switching frequency of up to 300 kHz, ensuring efficient power delivery and minimal energy loss.

FSFR1900 Features

• Power and Voltage Handling: The FSFR1900 is designed to handle significant power loads, with a rated power output of 300 watts and a voltage breakdown capability of 500 volts. This makes it suitable applications for requiring robust power management.
• Control and Protection: The IC includes essential control features such as enable (EN) and frequency control, allowing for precise regulation of power delivery. Additionally, it comprehensive offers fault protection mechanisms, including current limiting, overload, over-temperature, and over-voltage protection, ensuring reliable operation and longevity.
• Efficient Operation: With a switching frequency of up to 300 kHz, the FSFR1900 ensures efficient power conversion, minimizing energy loss and heat generation. The duty cycle is set at 50%, optimizing performance across various load conditions.
• Supply Voltage Range: The FSFR1900 operates within a supply voltage range of 11.3V to 25V, providing flexibility in power supply design. The start-up voltage is 14.5V, ensuring reliable initialization of the power management system.
• Output Isolation: The features IC isolated output, enhancing safety and reliability in applications where electrical isolation is critical.
• Compliance and Packaging: The FSFR1900 is ROHS3 compliant, adhering to stringent environmental standards. It is packaged in a tube, facilitating easy handling and integration into through-hole mounting systems.

FSFR1900 Applications

The FSFR1900 is ideal for a variety of power management applications, particularly those requiring high efficiency and robust power handling. Specific use cases include:

-Power ** Supplies**: Ideal for offline switch-mode power supplies in consumer electronics, industrial equipment, and telecommunications infrastructure.

• Motor Control: Suitable for driving small to medium-sized motors, providing efficient power conversion and control.
• Lighting Systems: Effective in LED lighting, systems where high efficiency and precise control are essential for maintaining brightness and longevity.
• Renewable Energy Systems: Useful in solar inverters and other renewable energy applications, where efficient power conversion and reliability are paramount.

Conclusion of FSFR1900

The FSFR1900 is a versatile and efficient power management IC, offering robust performance and comprehensive protection features. Its high power handling capability, efficient operation, and wide supply voltage range make it suitable for a variety of demanding applications. While the product is now obsolete, it remains a testament to Fairchild Semiconductor's commitment to innovation and quality in power management solutions. For new designs, engineers may consider exploring updated alternatives from onsemi's extensive portfolio of power management ICs.