onsemi

FAN4801SMY

FAN4801SMY Description

The FAN4801SMY is a Power Factor Correction (PFC) controller IC designed for average current mode operation, offering high efficiency and robust performance in power management applications. Manufactured by onsemi, this IC is housed in a 16-lead SOP package and is suitable for surface mount applications. Despite being marked as obsolete, the FAN4801SMY remains a reliable choice for specific legacy systems and applications where its unique features are still highly valued.

FAN4801SMY Features

• Average Current Mode Control: The FAN4801SMY operates in average current mode, providing precise control over the inductor current, which enhances system stability and reduces output voltage ripple.
• Wide Input Voltage Range: With a supply voltage range of 11V to 26V, the IC is versatile and can be used in a variety of power supply designs, accommodating different input voltage levels.
• Switching Frequency: The switching frequency of 240kHz to 268kHz allows for high efficiency and compact design, making it suitable for applications where space is a constraint.
• Low Startup Current: The IC features a low startup current of 30 µA, which minimizes power consumption during startup, contributing to overall system efficiency.
• Compliance and Packaging: The FAN4801SMY is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental regulations. It is packaged in a tape & reel (TR) format, facilitating easy handling and assembly in automated manufacturing processes.
• Moisture Sensitivity Level: With an MSL of 3 (168 hours), the IC is suitable for use in environments with moderate humidity levels, ensuring reliability and longevity.

FAN4801SMY Applications

The FAN4801SMY is ideal for applications requiring high efficiency and precise power factor correction. Its wide input voltage range and average current mode control make it suitable for:

• Switching Power Supplies: Ideal for use in AC-DC converters and offline power supplies where high efficiency and power factor correction are critical.
• Industrial Equipment: Suitable for industrial applications where precise control over power delivery is required, such as in motor drives and power inverters.
• Telecommunications: Can be used in telecom infrastructure equipment where reliable power management is essential for maintaining system uptime and performance.
• Consumer Electronics: Applicable in high-end consumer electronics where space constraints and efficiency are key considerations, such as in high-power adapters and chargers.

Conclusion of FAN4801SMY

The FAN4801SMY, despite being obsolete, remains a valuable component in the power management landscape due to its robust performance and unique features. Its average current mode control, wide input voltage range, and low startup current make it an efficient and reliable choice for various applications. While newer models may offer additional features, the FAN4801SMY continues to serve as a reliable solution for legacy systems and specific applications where its attributes are highly valued. Its compliance with environmental regulations and suitable packaging further enhance its appeal in the electronics industry.