The FAN7930C is an active Power Factor Correction (PFC) controller from Fairchild Semiconductor (now ON Semiconductor). It is designed for boost PFC applications to improve power quality and meet energy efficiency standards. It is commonly used in power supplies for LCD TVs, adapters, and other electronic devices.

Applications

• LCD TVs: Used in power supplies to improve power factor and reduce harmonic distortion.
• Adapters: Employed in AC-DC adapters for laptops and other electronic devices.
• Lighting Ballasts: Suitable for active PFC in electronic ballasts.
• Power Supplies: Used in various power supply applications requiring power factor correction.

Features

• Active Power Factor Correction (PFC): Corrects power factor to near unity.
• Zero Current Detection (ZCD): Implements ZCD for improved efficiency.
• Over-Voltage Protection (OVP): Provides OVP to protect the circuit from excessive voltage.
• Open-Loop Protection (OLP): Includes OLP to protect against open-loop conditions.
• Under-Voltage Lockout (UVLO): Offers UVLO to ensure proper startup and shutdown.
• Low Startup Current: Reduces startup current for improved reliability.

Benefits

• Improved Power Factor: Corrects power factor, reducing harmonic distortion and improving power quality.
• Enhanced Efficiency: Improves overall system efficiency by minimizing losses.
• Increased Reliability: Protects the circuit from over-voltage, open-loop, and under-voltage conditions.
• Simplified Design: Reduces the number of external components required for PFC implementation.

Additional Details

The FAN7930C is available in a DIP or SOP package. Consult the datasheet for detailed specifications, application notes, and recommended external components.

Note: As this part is marked as END-OF-LIFE, it is recommended to consider alternative solutions for new designs.