onsemi

FAN9673QX

FAN9673QX Description

The FAN9673QX, manufactured by onsemi, is a Power Factor Correction (PFC) Controller IC designed for Continuous Conduction Mode (CCM) applications. This IC operates within a switching frequency range of 18kHz to 40kHz and 55kHz to 75kHz, providing flexibility for various power supply designs. It features a 15V supply voltage and is surface-mountable, making it suitable for compact and efficient power conversion systems. With a startup current of only 30 µA, the FAN9673QX is highly energy-efficient, especially during initial power-up.

FAN9673QX Features

• Continuous Conduction Mode (CCM) Operation: Ensures high efficiency and low harmonic distortion in power supply applications.
• Broad Switching Frequency Range: Offers design flexibility and compatibility with various power supply topologies.
• 15V Supply Voltage: Supports a wide range of input voltages, making it suitable for diverse applications.
• Surface Mount Technology: Enables compact and space-efficient designs in power electronics.
• Low Startup Current: Minimizes power consumption during initial power-up, contributing to overall energy efficiency.
• RoHS3 Compliance: Aligns with environmental regulations, making it suitable for green electronics manufacturing.
• REACH Unaffected Status: Ensures compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulations.
• Moisture Sensitivity Level (MSL) 3: Indicates that the device can withstand up to 168 hours of exposure to moisture before baking is required, enhancing its reliability in humid environments.

FAN9673QX Applications

The FAN9673QX is ideal for applications where high efficiency and power factor correction are critical, such as:

• AC-DC Power Supplies: For converting mains power to lower voltage DC for various electronic devices.
• Telecommunications Equipment: Ensuring reliable and efficient power delivery in communication infrastructure.
• Industrial Automation Systems: Providing stable power to control systems and actuators in industrial settings.
• Consumer Electronics: Powering devices like TVs, computers, and home appliances with improved energy efficiency.

Conclusion of FAN9673QX

The FAN9673QX is a versatile and efficient PFC controller IC from onsemi, designed for CCM applications. Its broad switching frequency range, low startup current, and RoHS3 compliance make it a strong choice for power supply designs requiring high efficiency and environmental compliance. While the product is currently marked as obsolete, it remains a reliable option for existing designs or for applications where a low-voltage, high-efficiency PFC controller is required.