TOP248YN

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TOP248YN is a member of the TOPSwitch-YN family of AC/DC converters, offline switchers, and is a highly integrated design in a very small package. TOP248YN is suitable for applications located in high-power, high-efficiency, and thermally constrained environments.

The TOP248YN operates at a fixed off-time and its input voltage range is 85Vac to 265Vac. It features synchronous rectification technology and switched mode power topology, can deliver up to 28W of output power without any additional external components. Furthermore, the TOP248YN includes a high voltage switch in combination with low-side current limiting and a low-side winding to allow for a wide range of output powers.

TOP248YN helps designers maximize system efficiency, as it can achieve up to 80% efficiency at full-load. The design also helps for quieter controllers, since its low-side current limitation provides an additional benefit of lower audible noise when light loads are applied. The efficiency of the TOP248YN also benefits from a wide operating temperature range of -40 to +85°C, without any de-rating at full load.

The underlying technology of TOP248YN is a low-side current limitation integrated with a high voltage switch and a low-side winding. This helps to eliminate the need for additional active components and saves physical board space, which are crucial factors in AC/DC converters.

TOP248YN also provides for improved system performance, as it utilizes a synchronous rectification technique to achieve higher efficiency, higher power levels, and better power delivery. It also provides for flexibility for system level optimization such as multiple output voltages and output current capabilities.

Moreover, the TOP248YN contains a good combination of protection functions such as overvoltage protection, undervoltage protection, EMI filter, adjustable current limit, and thermal shutdown. This helps in making sure that the system is protected against potential risks during operation.

In conclusion, TOP248YN is a highly integrated AC/DC converter and offline switcher ideal for designs located in high-power, high-efficiency, and thermally constrained environments. It is also very configurable and provides excellent protection and improved system performance.

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