V28C28T100BG3

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DC-DC converters are devices used to convert direct current (DC) from one voltage level to a another. They are sometimes known as DC-to-DC converters, voltage converters, or voltage regulators. DC-DC converters can be used to provide a stable output voltage from a fixed or variable-voltage DC source, and are often found in applications such as telecommunications systems, power supplies, and portable electronic devices. This article will discuss the application field and working principle of V28C28T100BG3, a type of DC-DC converter.

Application Field of V28C28T100BG3

The V28C28T100BG3 DC-DC converter is a combination of a three-terminal PNP voltage-regulating device and one isolated DC-DC converter. The V28C28T100BG3 is used in applications which require isolation of the input and output, such as the power supply interface for portable electronic devices. The V28C28T100BG3\'s features also include a built-in power switch to control the power supply of the isolated DC-DC converter\'s secondary output. The V28C28T100BG3 also has reverse-polarity protection and over-temperature protection circuitry.

Working Principle of V28C28T100BG3

The V28C28T100BG3 DC-DC converter is designed to accept an input voltage between 5V and 24V, and provide a regulated output voltage of either 3.3V or 5V. The power switch is triggered by a voltage signal sent from the primary side of the converter, which allows the output voltage to be adjusted by applying a voltage to the switch\'s control pin. The PNP device on the input side of the V28C28T100BG3 provides reverse-polarity protection and over-temperature protection. When the input voltage is higher than the output voltage, the power switch is triggered, and the output of the converter is regulated to the desired value. The output of the converter can also be regulated by controlling the output voltage of the primary side of the converter.

In addition, the V28C28T100BG3 also includes various protection features to ensure safe operation. The over-temperature protection circuit limits the maximum temperature of the converter, and limits the input and output voltage levels. The reverse-polarity protection circuit prevents the primary power source from being connected in reverse polarity, thus preventing damage to the converter. The output current limiting protection circuit prevents the current draw from exceeding the maximum recommended load.

Conclusion

The V28C28T100BG3 DC-DC converter is suitable for applications which require isolation of the input and output, such as the power supply interface for portable electronic devices. It features a built-in power switch to control the power supply of the secondary output, as well as various protection features to ensure safe operation. The V28C28T100BG3 is capable of accepting an input voltage between 5V and 24V, and providing a regulated output voltage of either 3.3V or 5V.

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