VE-J2X-EY

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DC DC converters are power electronics components that take a voltage from one range, such as low voltage from a battery, to another range such as a higher voltage suitable for specific applications. The VE-J2X-EY is one type of DC DC converter designed for a variety of applications, and it is important to understand both the application field and its working principle to gain an understanding of how the device functions and the best applications for it.

Application Field of the VE-J2X-EY

The VE-J2X-EY is a DMOS buck converter, ideal for a variety of portable and battery operated applications. The VE-J2X-EY is an ideal onboard DC/DC converter for applications such as cell phones, tablets, wireless devices, and automotive systems. The device is capable of high efficiency, low shutdown current, and is protected against common fault conditions such as over current and short circuits.

The VE-J2X-EY has a wide input voltage operation range, enabling applications ranging from 3.3V to 18V input. This wide voltage range gives the device versatility, as it can be used with either 5V, 9V, or 12V input power supplies. Furthermore, the VE-J2X-EY also has a wide range of output voltages from 1.8V to 12V, allowing users to choose which output voltage and current suits their application best. There are both adjustable and fixed voltage and current options, meaning users can specify the most appropriate settings to fit their application.

Working Principle of the VE-J2X-EY

The VE-J2X-EY works by a process of switching power from its input to output in a buck converter topology. The device uses a DMOS transistor to act as a switch, and a power inductor to create a low pass filter. The inductor allows the current to build up gradually, allowing for efficient transfer of power from the input to the output with minimal losses.

The VE-J2X-EY uses a control loop to regulate the output voltage, as deviations in the output voltage can lead to instability. The device contains an oscillator and error amplifier, which senses the output voltage and adjusts the duty cycle accordingly in order to maintain a constant output voltage. The frequency of the oscillator can also be programmed, from 100kHz up to 2MHz, allowing users to optimize the device for their specific application.

The VE-J2X-EY also features built in protection circuitry such as an over current, over temperature, UVLO and short circuit protection. These features ensure the safety of the device, as well as providing long lifetime operation.

Conclusion

The VE-J2X-EY is a versatile DC DC converter for a range of applications from portable to automotive. Its wide input voltage and output voltage range, control loop, and built in protection features make it an ideal choice for users wishing to optimize their DC DC converter application.

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