The FS6S0965RT is a highly integrated Flyback Switch Mode Power Supply (SMPS) controller from Fairchild Semiconductor, now part of ON Semiconductor. It incorporates a SenseFET, which simplifies design and reduces component count for power supplies. The device is designed for off-line power supplies, providing high efficiency and reliability.

Applications

• Adapter Power Supplies
• Open Frame Power Supplies
• Auxiliary Power Supplies
• Standby Power Supplies
• Battery Chargers

Features

• Integrated SenseFET: Simplifies design and reduces external component count.
• Low Startup Current: Reduces power consumption during startup.
• Pulse-by-Pulse Current Limiting: Protects the device and the power supply from overcurrent conditions.
• Over Voltage Protection (OVP): Prevents damage from excessive output voltage.
• Thermal Shutdown Function: Protects the device from overheating.
• Frequency Modulation for EMI Reduction: Reduces electromagnetic interference.
• Built-in Soft Start: Reduces stress on components during startup.

Benefits

• Simplified Design: The integrated SenseFET reduces the number of external components required, simplifying the design process and reducing board space.
• High Efficiency: The device is designed to operate with high efficiency, reducing power consumption and heat generation.
• Robust Protection: Overcurrent, overvoltage, and thermal shutdown protections ensure reliable operation.
• Reduced EMI: Frequency modulation helps to reduce electromagnetic interference, making it easier to meet regulatory requirements.
• Improved Reliability: Built-in soft start reduces stress on components during startup, improving overall reliability.

Technical Specifications (Typical):

• Operating Frequency: 65 kHz
• Input Voltage Range: 85 VAC to 265 VAC
• Output Power: Up to 20W (depending on application and design)
• OVP: 12V
• Operating Temperature Range: -25°C to +85°C
• Package: TO-220F

The FS6S0965RT is a cost-effective and reliable solution for off-line power supply applications. Its integrated features and robust protection mechanisms make it a suitable choice for a wide range of applications requiring efficient and stable power conversion. Always refer to the official datasheet for the most accurate and detailed specifications before using this component in a design.