The TNY275P is a highly integrated, low power, offline switching IC from Power Integrations' TinySwitch-III family. It's designed to deliver energy-efficient and reliable power conversion in a compact package. This IC incorporates a 700V power MOSFET, oscillator, high voltage switched current source, current limit and thermal shutdown circuitry all in a monolithic device. It is ideal for applications requiring a simple, efficient, and cost-effective power supply solution.

Applications:

• Adapters and chargers for mobile phones, tablets, and other portable devices.
• Standby power supplies for appliances such as TVs, DVD players, and set-top boxes.
• Industrial control systems requiring auxiliary power.
• Metering applications where low power consumption is critical.
• LED lighting applications.

Features:

• Integrated 700V power MOSFET: Reduces external component count and simplifies design.
• Auto-restart protection: Protects the power supply from overloads and short circuits.
• Hysteretic thermal shutdown: Prevents damage due to overheating.
• Frequency jittering: Reduces EMI (Electromagnetic Interference) for quieter operation.
• EcoSmart™ energy efficiency: Meets stringent global energy efficiency standards.
• Optimized for low standby power: Minimizes energy consumption in standby mode.

Benefits:

• Reduced system cost: Integration of key components lowers the bill of materials.
• Simplified design: Fewer external components and comprehensive protection features ease the design process.
• High energy efficiency: Meets or exceeds global energy efficiency regulations, reducing energy consumption and costs.
• Enhanced reliability: Comprehensive protection features ensure robust and reliable operation.
• Smaller footprint: Compact package enables smaller and more compact power supply designs.

Additional Details:

The TNY275P operates in a flyback topology and supports both continuous and discontinuous conduction modes. It features a built-in current limit that protects the MOSFET from overcurrent conditions. The EcoSmart technology automatically adjusts the switching frequency to optimize efficiency across the entire load range. The device also includes an ON/OFF control scheme that allows for precise regulation of the output voltage. The TNY275P is available in a PDIP-8 package. For optimal performance, it's essential to follow the manufacturer's recommendations regarding external component selection and PCB layout. Consult the Power Integrations datasheet for detailed specifications, application notes, and design guidelines.

The TNY275P delivers up to 12W in an adapter application and 7W in an open frame application. It typically consumes less than 100mW in standby mode, contributing to significant energy savings.