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DC DC Converters

DC-DC converters are electronic devices that convert an input direct current (DC) to a specified output direct current. In other words, it is a power converter that converts an input DC voltage to a different output DC voltage. A V375C5E50BS3 is one of the digital dc dc converters.

Application Field and Working Principle

The V375C5E50BS3 is a high-efficiency DC-DC converter suitable for a wide variety of applications. It is a regulated power supply module, which takes an input voltage between 9-36V DC and converts it to a regulated output voltage of 5V DC. This DC-DC converter is ideal for industrial, automotive, and medical device applications. It is a isolated input dc-dc converter, and its switching frequency is up to 500KHz, with peak efficiency more than 90%.

The working principle of the V375C5E50BS3 is based on the continuous conduction mode of a buck topology. In this topology, the inductor\'s current is always kept at a continuous value, hence the name ‘continuous conduction mode’. The peak current through the inductor occurs when the input voltage is at its peak value and the internal switch turns on, while the minimum current occurs when the internal switch turns off.

The V375C5E50BS3 can be triggered directly by a 5V logic signal, making it a low cost solution. The on/off control feature is a critical application for this converter. The converter contains an internal circuit of MOSFET power switches, rectifier, and control circuit, enabling a high-speed switching response.

The Rectifier stage is used to convert the input AC voltage to the DC voltage necessary to drive the inductor. The power MOSFETs are used to control the current flowing through the inductor and switch it on and off in order to maintain the output voltage. The control circuit is used to regulate the current flow in the rectifier and the MOSFETs.

The V375C5E50BS3 features a variety of functions, such as short circuit protection, over-temperature protection, over-voltage protection, and over-current protection. These include an adjustable soft-start capability to minimize the inrush current. The design also provides an external shutdown with an active low logic, or a built-in power switch.

Overall, the V375C5E50BS3 is a small, high-efficiency, and robust DC-DC converter specifically designed for applications in industrial, automotive, and medical device applications. With its broad range input, wide range of output, high efficiency, adjustable soft-start capability, and over-current/voltage/temperature protection, it is a great choice for a wide variety of applications.

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