PT5822N

DC-DC converters are used to enhance the efficiency of electrical supply systems, and the PT5822N is one such converter. It is designed to provide both isolated, and non-isolated power conversion of input voltages from either 8V to 18V or 18V to 36V, with output wattages of up to 10W. Any output voltage between 3V and 15V can be achieved. Furthermore, its wide input voltage range allows for it to be used in various applications, while the output current is1A maximum.

Application Field

The PT5822N is a compact, cost-effective, high current, isolated DC-DC converter. These converters are typically used in a range of applications, including automotive applications, industrial control systems, solid-state lighting, medicalimage systems, and robotic systems. It offers high performance isolated power conversion with an optimized board layout and reduce wiring routing, making it suitable for applications under space-limited environments.

Working Principle

The PT5822N has a working principle consisting of two main stages. The first stage, known as the "pre-stage", uses a flyback topology whereby energy is transferred to a secondary winding on a main transformer; this allows for a controlled voltage and current to be provided on the output side. The second stage, known as the "controlling stage", has a charge pump circuit. This is used to maintain a steady output voltage, regulate the output current, and in some cases also reduce ripple. This allows for a stable output voltage to be provided, regardless of the varying input voltage.

The whole system operates with an internal operating frequency, typically at a frequency of 30-50kHz, and a range of protection features are embedded as well. These include short circuit protection, over-voltage protection, over-current protection, and over-temperature protection. Thus, the user can be assured of a high level of safety when using the PT5822N converter.

Conclusion

The PT5822N is a great converter for applications such as automotive applications and industrial control systems, where there are space and efficiency constraints. Its wide input voltage range of 8V to 36V allows it to be used for different types of applications. Moreover, the built-in protection features make it a safe and reliable choice. Its combination of pre-stage and controlling stage makes it an efficient, cost-effective converter suitable for use in a variety of applications.