VI-25W-EW-F4

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DC-DC converters are used in many different applications to convert direct current (DC) electricity from one voltage level to another. The VI-25W-EW-F4 is one such converter. This type of DC-DC converter operates in flyback topology, meaning it stores energy in an inductor and then releases it into the output filter capacitors whenever the current is needed.

The VI-25W-EW-F4 DC-DC converter is a 25W single output power solution designed to meet the requirements of many common applications. This device is capable of providing output voltages from 3.3V to 32V, with a wide range of current levels up to 800mA. The operating input voltage range is from 4.5V to 36V. The regulation accuracy is within 2%, and the switching frequency is between 200KHz and 500KHz.

The VI-25W-EW-F4 is designed to provide high efficiency, even at light loads. Its typical no-load input power is below 40mW, and its typical no-load output power is below 15mW. It has a high efficiency of up to 92%, making it an ideal choice for many efficiency-conscious applications. It also meets the requirements of the UL, CSA and EN safety standards.

One of the main benefits of the VI-25W-EW-F4 is its dead-time control. This feature helps to reduce EMI and electrical noise, making it suitable for applications with stringent EMI requirements. It also has a desaturation protection that will reduce the voltage output if an overload is detected. This feature helps to protect the feedback loop and avoid output overvoltage.

As with all DC-DC converters, the VI-25W-EW-F4 requires both input and output capacitors to smooth the current flow and avoid over-voltage or over-current. The input capacitors are typically ceramic X7R caps, and the output capacitors are typically aluminum electrolytic capacitors. The VI-25W-EW-F4 also includes an internal ferrite for EMI filtering and an open-drain fault pin for monitoring the output.

The VI-25W-EW-F4 is a versatile DC-DC converter suitable for many types of applications. It reduces both the size and cost of the application board, while offering a high level of protection and excellent efficiency. This makes it a great choice for applications such as industrial controllers, communications equipment, medical equipment, and automotive electronics.

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