L6561

The L6561 is a Power Factor Correction (PFC) controller IC designed for use in continuous conduction mode (CCM) and transition mode (TM) PFC pre-regulators. It is designed to improve the power factor of power supplies by controlling the shape of the input current to be in phase with the input voltage. The L6561 offers high efficiency, low total harmonic distortion (THD), and complies with international regulatory standards for power factor and harmonics. Key Features:

• Controller Type: Power Factor Correction (PFC) controller
• Operating Mode: Continuous Conduction Mode (CCM) and Transition Mode (TM)
• Input Voltage Range: Wide input voltage range
• Maximum Output Power: Suitable for high-power applications
• Power Factor Correction: High efficiency and low THD
• Frequency: Programmable switching frequency
• Protection Features: Over-voltage protection, over-current protection, and thermal shutdown
• Package Type: DIP-8 and SO-8

Technical Specifications:

• Supply Voltage (Vcc): 10V to 18V
• Quiescent Current: 3.5mA (typical)
• Operating Frequency: Up to 200kHz
• Output Voltage Range: Configurable based on application
• Input Current Sense: Built-in current sense for PFC operation
• Power Factor: > 0.99 (typical)
• Operating Temperature Range: -25°C to +125°C
• Package Types: DIP-8, SO-8

Applications:

• Switch Mode Power Supplies (SMPS): Used in power supplies to improve power factor and reduce harmonic distortion.
• Lighting: Used in electronic ballasts for fluorescent and LED lighting to improve power factor.
• Industrial Equipment: Suitable for industrial power supplies and motor drives.
• Consumer Electronics: Used in high-power consumer electronics to comply with regulatory standards for power factor and harmonics.
• Telecommunications: Power factor correction in telecom power supplies.

Datasheet: For detailed technical information, refer to the L6561 PFC Controller Datasheet.