onsemi

KA5H0280RTU

KA5H0280RTU Description

The KA5H0280RTU is a high-performance offline switcher IC designed for power management applications, manufactured by onsemi. This device is part of the FPS™ series and features a through-hole mounting type in a TO220F package. It is designed to operate with a wide input voltage range of 8.8V to 30V and offers a breakdown voltage of 800V, making it suitable for applications requiring high voltage handling capabilities. The KA5H0280RTU supports both flyback and forward topologies, providing flexibility in circuit design.

KA5H0280RTU Features

• Topology Support: The KA5H0280RTU supports both flyback and forward topologies, offering versatility in power supply designs.
• High Breakdown Voltage: With a breakdown voltage of 800V, the device is well-suited for high voltage applications, ensuring robustness and reliability.
• Wide Input Voltage Range: The IC operates within an input voltage range of 8.8V to 30V, providing flexibility in power supply design.
• Internal Switch: The KA5H0280RTU includes an internal switch, simplifying the overall circuit design and reducing the number of external components required.
• Soft Start Feature: The soft start feature helps in reducing inrush current during startup, protecting the device and the connected load.
• Fault Protections: Comprehensive fault protection mechanisms, including current limiting, overload, over-temperature, and over-voltage protection, ensure the device's longevity and reliability.
• Switching Frequency: The device operates at a switching frequency of 100kHz, balancing efficiency and performance.
• Duty Cycle: A duty cycle of 67% allows for efficient power conversion and management.
• Moisture Sensitivity Level: The KA5H0280RTU has a moisture sensitivity level (MSL) of 1 (unlimited), making it suitable for various environmental conditions.
• REACH Compliance: The device is REACH unaffected, ensuring compliance with environmental regulations.

KA5H0280RTU Applications

The KA5H0280RTU is ideal for a variety of power management applications, including:

• Adaptive Voltage Control: The device's wide input voltage range and high breakdown voltage make it suitable for adaptive voltage control systems.
• Power Supplies: Its support for both flyback and forward topologies makes it a versatile choice for designing power supplies for various electronic devices.
• Industrial Equipment: The comprehensive fault protection features and high voltage handling capabilities make it suitable for use in industrial equipment where reliability and robustness are critical.
• Consumer Electronics: The KA5H0280RTU can be used in consumer electronics requiring efficient power management and protection against voltage fluctuations.

Conclusion of KA5H0280RTU

The KA5H0280RTU is a versatile and robust offline switcher IC designed for power management applications. Its wide input voltage range, high breakdown voltage, and comprehensive fault protection features make it an ideal choice for a variety of applications. The device's support for both flyback and forward topologies, combined with its internal switch and soft start feature, simplifies circuit design and enhances performance. While the KA5H0280RTU is currently marked as obsolete, its technical specifications and performance benefits make it a reliable option for existing designs and legacy systems.