UMC4NTR

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Transistors, being a basic building block of many ICs, have taken on particular importance in modern electronics, and this has been reflected in the development of special purpose transistors. These contain a single active element such as an insulated-gate (IGBT) or MOSFET, and their purpose is to perform a specific set of tasks with greater efficiency and accuracy than general-purpose transistors. The UMC4NTR is one such special purpose transistor, and it is designed for high-voltage, high-frequency applications. In this article, we will take a look at the application field of the UMC4NTR, as well as its working principle.

Application Field

The UMC4NTR is designed for high-voltage, high-frequency applications. It is used in power supply circuits, power controllers and amplifiers where high-voltage and high-frequency operation is required. Additionally, it can also be used in DC-DC converters, motor drivers, and motor controllers. The UMC4NTR has an extremely high switching frequency up to 10-kHz, a low on-resistance of 0.3-mΩ, and an operating voltage up to 600-V. It also offers excellent thermal performance, with a maximum junction temperature of 175°C.

Working Principle

The UMC4NTR is a vertical double diffused metal-oxide-semiconductor field-effect transistor (MOSFET). It contains two diffused semiconductor layers and a gate that sits between them. When the gate voltage is applied, it modulates the electric field across the channel between the layers, causing changes in its conductivity. This type of transistor is used in high-voltage switching circuits due to its high breakdown voltage, high-frequency operation, and low on-resistance.

The UMC4NTR has an avalanche rating of 400-V, which makes it ideal for use in overvoltage and reverse voltage protection schemes. Additionally, it has a very low positive temperature coefficient, making it well suited for applications requiring good thermal stability. It also offers excellent gate-charge characteristics, allowing for high frequency switching.

Conclusion

The UMC4NTR is a special purpose transistor designed for high-voltage, high-frequency applications. It is used in power supply circuits, power controllers and amplifiers, DC-DC converters, motor controllers and amplifiers. The UMC4NTR has an extremely high switching frequency up to 10-kHz, a low on-resistance of 0.3-mΩ, and an operating voltage up to 600-V. Additionally, it has an avalanche rating of 400-V, making it suitable for overvoltage and reverse voltage protection schemes. It also has a very low positive temperature coefficient, making it well suited for applications requiring good thermal stability.

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