The SEC1203C is a power factor correction (PFC) controller IC manufactured by Sanken Electric. It is designed for improving the power factor and reducing harmonic distortion in AC-DC power supplies. This IC incorporates various features to enhance efficiency and reliability, making it suitable for a wide range of applications.

Applications:

• AC-DC power supplies for consumer electronics
• LED lighting power supplies
• Power adapters and chargers
• Industrial power supplies
• Ballasts for fluorescent lamps

Features:

• Continuous Conduction Mode (CCM) PFC control
• Low startup current
• Overvoltage protection (OVP)
• Overcurrent protection (OCP)
• Open loop protection (OLP)

Benefits:

• Improved power factor, reducing energy waste
• Reduced harmonic distortion, complying with regulatory standards
• Enhanced system reliability through integrated protection features
• Simplified design with minimal external components
• Higher efficiency in power conversion

Additional Details:

The SEC1203C PFC controller is designed to improve the power factor of AC-DC power supplies, ensuring that the current drawn from the AC line is in phase with the voltage. This reduces energy waste and minimizes harmonic distortion, which can interfere with other electronic devices and violate regulatory standards. The CCM control scheme offers high efficiency and low total harmonic distortion (THD). The integrated protection features, such as OVP, OCP, and OLP, enhance the reliability of the power supply and prevent damage in fault conditions. This controller is suitable for various applications, including power supplies for consumer electronics, LED lighting, and industrial equipment.

Technical Specifications (Typical):

• Operating Voltage Range: 85 VAC to 265 VAC
• Operating Frequency: Typically 65 kHz
• Maximum Power: Varies depending on application and external components
• Operating Temperature Range: -40°C to +125°C