The FS6X1220RTYDTU is a highly integrated offline power switch from Fairchild/ON Semiconductor designed for compact and efficient power supplies. This device integrates a Pulse Width Modulation (PWM) controller and a power MOSFET, offering a cost-effective solution for various applications.

Applications

• Power adapters for mobile devices
• Standby power supplies for consumer electronics
• Auxiliary power supplies in industrial equipment
• LED lighting power supplies
• Open-frame SMPS

Features

• Integrated PWM controller and power MOSFET
• Low startup current
• Frequency hopping for improved EMI performance
• Built-in soft-start function
• Over-voltage protection (OVP)
• Over-current protection (OCP)
• Over-temperature protection (OTP)
• Under-voltage lockout (UVLO)
• Brown-out protection
• Automatic burst-mode operation for improved efficiency at light load conditions

Benefits

• Reduced component count, leading to smaller and more cost-effective power supply designs
• Improved efficiency across a wide load range, resulting in energy savings
• Enhanced reliability due to integrated protection features
• Simplified design process with built-in soft-start and frequency hopping
• Excellent EMI performance, minimizing interference with other electronic devices

Additional Details

The FS6X1220RTYDTU operates with a wide input voltage range, making it suitable for global applications. The integrated protection features ensure safe and reliable operation under various fault conditions. The device is available in a compact package, further contributing to space savings. The frequency hopping feature reduces EMI emissions, simplifying compliance with regulatory standards. This device is specifically designed for energy saving and high performance in AC/DC offline flyback converters.

Its adaptive PWM control provides efficient operation at both high and low line voltages and it is designed for operation in discontinuous conduction mode (DCM).