THN 20-4823

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DC-DC converters are electronic devices used to convert DC input power into stable, regulated DC output power. They are commonly used in a range of applications including automotive, industrial, commercial, and consumer applications such as laptop computers, mobile phones, and servers. The THN 20-4823 is a high-efficiency, highly integrated DC-DC converter designed to convert 12 V input power into a +5 V and -5 V output with a maximum conversion efficiency of 92%. In this article, we will discuss the THN 20-4823 application field and working principle.

THN 20-4823 Application Field

The THN 20-4823 is designed to provide a cost-effective solution for applications requiring both positive and negative regulated power. It features a full digital control loop and is specifically designed to provide a high input voltage range, high output voltages, and low noise operation. It has a wide range of applications, including automotive, industrial, server, and consumer electronics. It is ideal for applications requiring dual +5 V and –5 V outputs, and can be used in a variety of systems such as portable power supplies, portable test equipment, battery charging and discharging systems, telecommunication systems, industrial test systems, voltage monitoring systems, network power, and medical equipment.

THN 20-4823 Working Principle

The THN 20-4823 works on a simple principle of transferring energy from its positive input and output terminals. The power flow is accomplished by the buck-boost converter topology which utilizes a controller to regulate the output voltage. The controller controls the power transistors to control the power flow when the voltage levels of the input and output terminals are mismatched. The output voltage is regulated by regulating the frequency of the oscillator which controls the power transistors. The output voltage is also regulated by a feedback loop from the output to the controller.

The THN 20-4823 utilizes a synchronous rectification technique to minimize the losses and provide improved efficiency. This technique switches the power devices at the zero crossings of the input current waveform, providing optimum operation and minimum switching losses. The converter also has an adaptive dead-time feature which allows it to adjust the dead-time based on the input voltage and the power load. This feature reduces switching losses and improves efficiency.

The THN 20-4823 also features a soft start feature which protects the converter against high inrush current. This feature limits the inrush current and slowly brings up the converter to its desired operating parameters. In addition, the converter has advanced protection features which include over voltage, under voltage, over temperature, and short circuit protection.

Conclusion

The THN 20-4823 is a highly efficient, highly integrated DC-DC converter designed to convert 12 V input power into a +5 V and -5 V output with a maximum efficiency of 92%. It is suitable for a wide variety of applications and is ideal for applications requiring dual +5 V and –5 V outputs. It features a full digital control loop with adaptive dead-time and soft start features. It also has advanced protection features for over and under voltage, over temperature, and short circuit conditions. The THN 20-4823 is an excellent choice for applications requiring a reliable, cost-effective power solution.

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