The ML4824CS1/ML4824IS1 is a power factor correction (PFC) and pulse width modulation (PWM) controller combo IC from Fairchild/ON Semiconductor. It's designed to improve the power factor and reduce harmonic distortion in power supplies. By combining PFC and PWM functions in a single chip, it simplifies power supply design and reduces component count.

Applications

• AC-DC power supplies
• Electronic ballasts
• Switch-mode power supplies (SMPS)
• Adapters
• Chargers

Features

• Power factor correction (PFC)
• Pulse width modulation (PWM)
• Average current mode control
• Overvoltage protection (OVP)
• Undervoltage lockout (UVLO)
• Soft start

Benefits

• Improves power factor
• Reduces harmonic distortion
• Meets regulatory requirements
• Simplifies power supply design
• Protects the power supply from damage

Additional Details

The average current mode control ensures stable and accurate PFC operation. The overvoltage protection and undervoltage lockout features protect the power supply from damage due to abnormal input voltage conditions. Soft start reduces stress on power components during startup. Detailed information regarding PFC control type and PWM frequency is available in the datasheet.