VI-25V-EY-F4

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DC DC converters are an essential appliance for many power applications. They are used to convert between two different DC voltages, enabling higher voltage requirements to be achieved from lower voltage sources. The VI-25V-EY-F4 is one such DC DC converter, designed to efficiently transfer power utilizing two different dc voltage levels.

The VI-25V-EY-F4 employs several key features, such as wide input voltage operation, wide temperature range, and high efficiency and low noise operation. Additionally, the device features short circuit protection, over voltage protection, and over current protection.

The VI-25V-EY-F4 is designed for a variety of applications, such as industrial, automotive, ITE, telecom, and military. It is suitable as a DC-to-DC step-down or step-up converter for applications that require high power, such as powering computers, medical equipment, and motor controllers. The converter features fast transient response times, and is capable of operating at high output current levels.

The VI-25V-EY-F4 utilizes an isolated topology that isolates the input and output while still providing reliable operation. This enables the input and output voltages to be independently adjusted, as well as providing galvanic isolation protection. The device is equipped with active PFC (Power Factor Correction) technology to improve the efficiency up to 94%.

A typical application of the VI-25V-EY-F4 involves step up or step down a low voltage power source, such as from 12V to 24V, for use within industrial, automotive, or other applications. The device is implemented by connecting the input and output as shown in Figure 1. The nominal input voltage is 12V, and the nominal output voltage is 24V.

The VI-25V-EY-F4 features variable on-time PWM control with an integrated PFC controller. This enables it to achieve high efficiency, low output noise, and fast transient response. The device also features frequency foldback technology, allowing it to work efficiently over a wide load range. This feature allows for lower power dissipation, and thus more efficient operation.

In summary, the VI-25V-EY-F4 is an ideal DC-to-DC step up/down converter for a wide range of requirements. It is highly efficient, with excellent noise reduction and wide temperature range. The device features active PFC technology and variable on-time PWM control for efficient operation. Additionally, it is equipped with robust protection features such as short circuit, over voltage, and over current protection.

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