STD5NK52ZD Discrete Semiconductor Products

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A Standard 5Nk52Zd (STD5NK52ZD) transistor is a kind of Field Effect Transistor (FET). It is an N-channel enhancement-mode (normally-off) mode power MOSFET. The STD5NK52ZD transistors are often referred to as “TrenchFET” since they are created with a different process and technology than the traditional planar style of MOSFETs.

Application Field

The STD5NK52ZD transistors are speed-optimized components that are designed for use in automotive applications to achieve faster switching rate and lower RDS(ON) values than can be achieved in traditional planar-style MOSFETs. Common automotive applications of the STD5NK52ZD transistors are in the following areas:

• High-Frequency DC/DC Converters
• Voltage Regulators
• Power Supplies
• Over-Current Protection Circuits
• DC Inverters
• DC Motor Drives

In addition, the STD5NK52ZD transistors are also suitable for applications in confined or confined-space environments such as aircraft or spacecraft where their high ruggedness and reliability make them practical for use in extreme temperature and vibration conditions.

Working Principle

The STD5NK52ZD transistors are N-channel enhancement-mode power MOSFETs. This means that they are normally off and require a positive gate voltage to switch them on. When the gate voltage is increased to the threshold voltage, the transistor will start to conduct. The amount of current the MOSFET will be able to conduct is dependent on the gate voltage and on the applied source-drain voltage. It is also important to note that the higher the source-drain voltage, the lower the RDS(ON) will be.

The STD5NK52ZD transistors make use of silicon trench technology to further reduce the on-resistance of the device, which allows for higher switching frequencies and improved system performance. In addition, to further improve the performance of these transistors, a unique design feature such as bootstrap protection and soft start can be configured in some applications.

The STD5NK52ZD transistors also make use of a built-in high-speed turn-off feature that helps reduce switching losses and improve efficiency. When the gate voltage falls below the threshold voltage, the transistor turns off quickly and efficiently.

The STD5NK52ZD transistors also feature a built-in temperature sensor that is designed to detect abnormal temperatures and reduce current consumption when the junction temperature exceeds certain predefined thresholds. This helps prevent the transistors from being damaged due to high temperatures and helps extend their life.

Conclusion

The STD5NK52ZD transistors are ideal for use in automotive applications where their ruggedness and reliability make them suitable for use in extreme temperature and vibration environments. Their combination of high-speed switching and low on-resistance make them suitable for use in applications such as high-frequency DC/DC converters, voltage regulators, power supplies, over-current protection circuits, DC inverters, and DC motor drives. The built-in temperature sensor and soft start features also help to further improve system performance and reliability.

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