VI-2TK-EY-F4

Current - Output (Max):	1.25A
Size / Dimension:	4.60" L x 1.86" W x 1.05" H (116.8mm x 47.2mm x 26.7mm)
Package / Case:	Full Brick
Mounting Type:	Through Hole
Efficiency:	88%
Operating Temperature:	-10°C ~ 85°C
Features:	OCP, OTP, OVP, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	3kV
Power (Watts):	50W
Series:	VI-200™
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	40V
Voltage - Input (Max):	160V
Voltage - Input (Min):	66V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Bulk

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DC-DC converters are widely used for a range of applications, from generating power for mobile phones and other portable electronic devices to providing high-voltage power for larger applications such as industrial machinery. The VI-2TK-EY-F4 is a compact DC-DC converter developed for a range of low- and medium-power applications. This article explains the VI-2TK-EY-F4’s application field and working principle.The VI-2TK-EY-F4 is a DC-DC converter designed specifically for applications that require a low-voltage, low-power supply. It is capable of converting a DC input ranging from 4.5V to 28V into a DC output of between 1.2V and 24V. It can also deliver a maximum output power of 280W and a peak efficiency of up to 92 percent.Although the VI-2TK-EY-F4 can be used in a variety of applications, it is particularly well suited to applications that require a slim form factor and low power consumption, such as server blade systems, embedded systems, UPS systems and telecom base stations. It is also highly reliable, with a life expectancy of up to 10 years and a MTBF of 1.6 million hours.The VI-2TK-EY-F4’s design incorporates features that enable it to generate a stable output voltage and maintain a high efficiency even when the load or input voltage changes. It uses a synchronous rectification and quasi-resonant topologies for higher efficiency, and its design helps to reduce EMI noise, thereby meeting the stringent EU EMC regulations.The VI-2TK-EY-F4 also offers a range of control features to enable it to be easily integrated with a range of systems. It features an I2C communication interface and can be programmed to match a wide range of voltage and current characteristics, and monitor output current and temperature. It also offers over-voltage, over-current and over-temperature protection, and a soft-start feature to prevent excessive inrush current.The working principle of the VI-2TK-EY-F4 is based upon the principle of transformer-based Buck converters, which convert electrical energy from one voltage level to another. The VI-2TK-EY-F4 uses an inductor, two switches (a high-side and low-side switch) and diode and capacitors to form a flyback converter.When the switches are activated, the inductor is energised and current builds in it. When the high-side switch is turned off, the inductor current is forced through the dedicated diode and the output capacitor. This transfers energy from the inductor to the output capacitor, generating the output voltage. TThe voltage and current regulation circuits then control the switches to ensure that the output voltage remains stable.In summary, the VI-2TK-EY-F4 is a DC-DC converter designed specifically for low-power applications. It offers a high efficiency, low noise operation, a wide input voltage range, a range of control features, and a long operational life. Its flyback topology helps to ensure output stability and efficient energy transfer, making it a reliable and versatile solution for a range of low power applications.

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