Find out how the XSEMI series from Yageo concerns the electricity and efficiency challenges in electronics.
TTI Inc. sponsored this post.
What do smartphones, e-scooters, solar inverters and IoT devices have in common? They all support themselves on MOSFETs (metal oxide-sämiener field effect transistors) to work. These tiny transistors are used in every device for which a switch-mode power supply is required-from consumer devices up to industrial machines, which makes it one of the most important components in modern electronics.
A MOSFET is a semiconductor with three terminals: source, drain and gate. The gate, which is isolated by a thin layer of metal oxide, regulates the current flow between the source and drain. If a tension is created on the gate, it changes the conductivity of the main circle. Under their many uses, MOSFET can insulate lights, reinforce signals, control engine speeds remote and automatically switch the circuits on and off.
Despite its versatility, Mosfets often confronts problems to compensate for efficiency with thermal losses. How most electrical components produce MOSFET during operation – and if this heat is not properly managed, this can reduce the performance and shorten the lifespan of the device. The problem of heat discharge is pressed even more in high -performance applications.
“Today's designs require more electricity and at the same time fit into always compact devices,” says Simon Reuning, Global Technical Marketing Manager at Yageo Group. “Engineers must control the complexity of efficiency, thermal management and component size and at the same time develop mosfets that can meet these growing requirements.”
This article examines how the XSEMI mosfets from Yageo address common problems which engineers should take into account when using, and applications in which these components are most effective.
Outstanding features of Yageos XSemi -Mosfets
One of the defining features of Yageos XSemi-Mosfets is the ultra-low on-resistance (RDS (ON)) with quick switching capacity. The resistance between drainage and source connections is on resistance when the MOSFET is active. A lower RDS (on) minimizes line losses when switching and reduces the amount of energy converted into heat. This not only improves overall efficiency, but also reduces the self -heating of the MOSFET so that you can manage higher performance conditions.
“An important focus in MOSFET design is to optimize thermal dissipation,” says Reuning. “For example, we examine innovative opportunities to effectively reduce the heat from the device.”
XSEMI mosfets offer advanced packaging to improve thermal dissipation. They are also built for performance under difficult conditions, such as B. outdoors or in the industrial environment, in which components have to withstand temperature fluctuations, moisture and other environmental advressors. This is particularly relevant for applications such as e-scooters, which must maintain a consistent performance in variable conditions.
Robusted characteristics such as improved Avalanche energy ratings enable XSEMI mosfets to endure energy-rich events without a catastrophic failure and to extend the lifespan of components. These reviews improve the device's ability to withstand energy transients caused by conditions such as voltage peaks, electricity surfaces or load switches. This is particularly important in applications where Mosfets work in hard environments such as industrial or high performance systems.
In practical terms, the avalanche ability determines how well a MOSFET can absorb excess energy without failing. If a MOSFET is exposed to a voltage that exceeds its maximum drain source voltage, it enters the breakdown area. In most cases, this would destroy the device. However, MOSFETs with improved avalanche function can process such voltage peaks and at the same time operate within the safe temperature and power boundaries, as defined in their data sheets.
“A high avalanche rating improves the system of robustness and makes the power circuit more reliable when it comes to transitions between different frequencies,” says reunification.
Engineers must take compromises into account when using Mosfets
When choosing the right MOSFET, the engineers have to navigate a sensitive balance between the most important performance parameters for their application. Regardless of whether it achieves lower line losses, faster switching speeds or higher voltage tolerances, every decision has an impact on the performance of the system.
A primary consideration is the interaction between on-resistance (RDS (ON)) and Gate cargo (QG). The gate load refers to the load amount required to activate the MOSFET by injecting loads into the Gate electrode. A lower gate charge leads to lower switching losses and higher switching speeds, which are particularly advantageous for high-frequency applications such as motor drives or DC-DC converters. However, these designs are equipped with higher RDS (on).
“A load with a low gate enables faster switching and enables the surrounding components – such as inductors and capacitors – and ultimately increase efficiency,” explains reunification. “However, this often applies at the expense of higher RDS (ON) and reduced performance. Conversely, reaching low RDS (on) usually requires a larger stamp and a slightly higher gate charge. “
The selection of the MOSFET construction continues to make the decision-making process, with each architecture achieving unique advantages and restrictions. Traditional planar designs are inexpensive, but the advanced performance features required for high -performance applications may be missing. Combinations optimize for low RDS (ON), while double gate constructions prioritize the lower gate charging and faster switching speeds. Overcome mosfets offer smaller dice sizes and support higher switching frequencies.
The voltage requirements also play an important role. For example, automotive applications are increasingly demanding MOSFETs that can edit 800 -V systems.
“High-voltage mosfets require higher RDS (ON) and gate charging,” says reunification. “The most important challenge is to determine whether the compromise is manageable in its design restrictions.”
At the end of the day, Reuning believes that the most important task for engineers is to carefully weigh the compromises and to optimize their designs accordingly.
“The optimization of a MOSFET design always includes compromises,” says Reuning. “Low RDS (ON) are due to other parameters, as well as the reduction of gate fees requires victims elsewhere. There is not a single packaging that delivers the best of everything – at least not yet. Engineers must determine which properties are most important for their application. For example, if a high switching frequency has no priority, you can tolerate a higher gate load in exchange for improved voltage handling. A careful assessment of this compromise is of crucial importance for the selection of the right components. “
Applications of XSEMI -MOSFETS
The XSEMI mosfets from Yageo have applications in many established industries and emerging countries.
“Our MOSFETs support a wide range of electricity applications, EV charging stations and solar modules to battery management systems, industrial power tools, servers and telecommunications foods,” says Reuning. “They are also well suited for system performance, PCs, portable devices and switch-mode power supplies. With a diverse portfolio that covers different case size vom surface assembly up to the hole and several voltage levels, we offer solutions that are tailored to different design requirements. “
As already mentioned, Xsemi-Mosfets on e-scooters are only suitable because of their robust characteristics, but also in high energy efficiency, especially in devices such as inverters and on board charger. The components are also an essential part of renewable energy systems. Solar inverter and battery security systems such as battery walls depend heavily on MOSFETs for efficient energy conversion and storage.
XSEMI mosfets are also useful for IoT and EDGE computing applications that include compact solutions with low performance. The increasing miniaturization of power supplies in these fields requires smaller components and energy density packaging.
Here, too, Reuning discusses some considerations for engineers: “What compromises can be made for a smaller footprint? Can the switching frequency, for example, enable the use of smaller components such as inductors? “
“What compromises can be made for a smaller footprint? Can the switching frequency, for example, enable the use of smaller components such as inductors? “
XSEMI mosfets also helped manufacturers to optimize the power supply systems in real applications. In one case, a power supply manufacturer used a 600 VN channel mosfet with improved avalanche energy ratings to improve the efficiency and reliability of an inverter design. Another success story included a motor application in which a MOSFET with low RDS (on) enabled more reliable operation during high -performance cycling, which led to a longer operating time and improved overall performance.
Yageo's XSEMI mosfets play a growing role in industrial automation, in which sensors and camera systems are used to increase productivity. While the industries are developing, MOSFETs will remain of fundamental importance for the fulfillment of new power and performance requirements.
To learn more, visit Yageo at TTI.