VI-J74-EY-B1

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VI-J74-EY-B1 – DC DC Converters

The VI-J74-EY-B1 is a DC-DC converter manufactured by Vishay Semiconductors. It is part of their Isolated series, and is a isolated step-down module that features wide input voltage range, high efficiency (up to 95%), and over-current and short-circuit protection.

Application Field

The VI-J74-EY-B1 is typically used in applications that require a large amount of power transfer, while a fixed output voltage and high efficiency is desired. It can be used for many different applications, ranging from industrial and medical devices, to power supply and military systems. It can also be used for applications that require galvanic isolation of input and output signals, as it features up to 4000V DC of isolation.

Working Principle

The VI-J74-EY-B1 works by taking a DC voltage from an input source and stepping it down to an output voltage. It utilizes a fixed frequency PWM control to generate the output voltage. The PWM is generated by a high-speed internal oscillator which is configured with an external resistor and capacitor. The external resistor and capacitor determine the switching frequency of the PWM, and thus the output voltage of the converter.

To reduce power dissipation, the VI-J74-EY-B1 features a wide input voltage range. This allows the converter to utilize a wide selection of input sources, ranging from 3.3V to 20V. Additionally, the module features a high efficiency rating, which allows it to run at up to 95% efficiency. This ensures that less energy is lost as heat during operation.

Finally, the VI-J74-EY-B1 also features over-current and short-circuit protection. This ensures that the output of the module is not damaged in the event of an over-current or short-circuit situation. This offers enhanced reliability and safety for the system.

Conclusion

The VI-J74-EY-B1 is a DC-DC converter made by Vishay Semiconductors. It is typically used in applications that require a large amount of power transfer, while a fixed output voltage and high efficiency is desired. The converter uses a fixed frequency PWM control to convert a DC voltage from an input source to an output voltage. It also features a wide input voltage range, high efficiency, and over-current and short-circuit protection. This makes it suitable for applications that require galvanic isolation of input and output signals.

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