The RDK-249 is a reference design kit from Power Integrations. It demonstrates a non-isolated, high-efficiency buck converter power supply solution using their LinkSwitch-TN2 family of ICs. This design is specifically targeted towards appliance and metering applications where a simple, low-cost, and reliable power supply is required.

Applications:

• Appliance power supplies (e.g., washing machines, refrigerators)
• Metering applications (e.g., smart meters)
• Industrial control systems
• Standby power supplies
• Low-power LED drivers

Features:

• Non-isolated buck converter topology
• Based on LinkSwitch-TN2 family of ICs
• High efficiency
• Low component count
• Integrated protection features (e.g., over-temperature, over-current)
• Compliant with international energy efficiency standards
• Compact size

Benefits:

• Provides a simple and cost-effective power supply solution.
• Reduces energy consumption and lowers operating costs.
• Enhances system reliability with integrated protection features.
• Simplifies design and reduces time-to-market.
• Meets stringent energy efficiency requirements.

Additional Details:

The RDK-249 reference design utilizes the LinkSwitch-TN2 IC to achieve high efficiency and low standby power consumption. The design incorporates a buck converter topology, which is suitable for applications where isolation is not required. The LinkSwitch-TN2 integrates a power MOSFET, oscillator, and control circuitry into a single package, reducing the component count and simplifying the design. The reference design includes detailed schematics, bill of materials (BOM), and test data to facilitate rapid prototyping and evaluation. The integrated protection features of the LinkSwitch-TN2, such as over-temperature and over-current protection, enhance system reliability and prevent damage to the power supply. The RDK-249 is designed to meet international energy efficiency standards, such as Energy Star and EuP Lot 6. Furthermore, it's important to consult the Power Integrations website for the latest documentation and design tools related to the LinkSwitch-TN2 family. When implementing the RDK-249, careful attention should be paid to component placement and thermal management to ensure optimal performance and reliability.