THN 20-4811

DC DC converters are widely used in many applications such as telecom, high-speed rail, industry automation, military equipment, aerospace, and energy transmission.The THN 20-4811 is a high-efficiency DC to DC converter that is specifically designed for these applications. It features a power rating of 20W, low noise operation, and an ultra-wide input voltage range of up to 48V DC.

Features

The THN 20-4811 offers power-conversion efficiency of up to 95%, an output voltage range of 2V to 46V, and an output current of up to 8A. It also features protection against over-temperature, over-voltage, and short-circuit. It is designed in a compact size of 2.4" x 2" x 0.5" and is suitable for surface mounting.

Application Field and Working Principle

The THN 20-4811 can be used in a wide range of applications including gate drives, telecom, high-speed rail, industrial automation, military and aerospace, and energy transmission. The converter is designed to provide reliable operation even when the input and output regulations are not ideal.

In operation, the THN 20-4811 uses a synchronous buck converter circuit to convert the input voltage from 48V DC to the output voltage desired (2-46V). During this process, the power supply’s high frequency switch regulates the current flow, enabling highly efficient power conversion. This switch is synchronized to an internal oscillator, and the output voltage is regulated using a feedback signal.

Conclusion

The THN 20-4811 from TDK-Lambda is an efficient DC to DC converter that is specifically designed for applications such as telecom, high-speed rail, industry automation, military, aerospace, and energy transmission. It is equipped with a power rating of 20W and offers an ultra-wide input voltage range of up to 48V DC. It features protection against over-temperature, over-voltage, and short-circuit, as well as a compact size for easy surface mounting. This makes it a perfect choice for a wide variety of applications.