The Medium Voltage MOSFET SL4421 with a -60V Drain-source Voltage and a -8.5A Continuous Drain Current

PublishTime： 2024-03-22 Article Source：SLKOR News

Recently, a research team from Zhejiang University announced that their researchers have designed a new electrolyte, which, once commercialized, could greatly enhance the fast-charging performance of electric vehicles at room temperature and their operation in low-temperature conditions. If this achievement can be mass-produced, it is expected to address two major challenges facing current electric vehicles: slow charging, leading to long waiting times when there are many vehicles, and adaptability in extreme environments, especially in low-temperature conditions that not only significantly reduce the capacity of power batteries but also result in power attenuation, charging difficulties, and shortened lifespan. This breakthrough by the research team could truly enable electric vehicles to replace fuel vehicles.

Meanwhile, with the rapid development of electric vehicles, especially the rise of domestic electric vehicle brands, overseas brands are facing severe competition. Faced with the strong offensive of domestic electric vehicles, many established companies have adopted different strategies in response. With the breakthrough in domestic new battery technology, the global automotive market is also set to witness a new landscape. Driven by technology and industry, the latest reports indicate that China's production and sales of new energy vehicles account for over 60% of the global share. With the rapid development of domestic new energy vehicle technology and the support of a complete industrial chain, domestic new energy vehicles have taken the lead globally.

New battery technologies typically offer higher energy density, longer cycle life, faster charging and discharging rates, among other advantages, but they also require more precise control and management of charging and discharging. MOSFETs, as core components of battery systems, can achieve more refined management of new battery types, fully leveraging their performance advantages to drive the progress and application of battery technology. SLKOR (www.slkoric.com) is a company specializing in the production and sale of high-performance MOSFET products, targeting the high-end market with a focus on high performance, high reliability, deep collaboration with customers, and technical support to meet the high requirements for power devices.

Fig.1 Slkor Semiconductor silicon carbide field-effect transistor

Efficient battery management and power control have enabled electric vehicles to achieve longer range and faster charging speeds; energy storage systems can more stably store and release energy, providing strong support for the intelligent utilization of renewable energy sources; the construction of smart grids has also been accelerated, promoting the clean and intelligent utilization of energy. The medium-voltage MOSFET SL4421, as a power semiconductor device, enables more efficient and safe battery charging and discharging processes through precise and effective current control and power conversion, thereby extending battery life and improving energy efficiency.

Fig.2 Slkor Medium Voltage MOSFET SL4421 product photo

The SL4421 is a P-channel MOSFET with a -60V drain-source voltage and a -8.5A continuous drain current, known for its low on-state resistance (23mΩ at -10V, -8A) and a relatively low threshold voltage (-1.6V at 250μA). These characteristics enable the SL4421 to control, protect, and manage battery charging and discharging, making it an ideal electronic component for the application of new battery technologies, especially in situations that require high efficiency and precise control.

Fig.3 Slkor Medium Voltage MOSFET SL4421

First of all, the characteristics of the SL4421, with a -60V drain-source voltage and a -8.5A continuous drain current, equip it with high voltage and current tolerance, making it suitable for various types of battery systems. Whether it's traditional lithium-ion batteries or new solid-state or sodium-ion batteries, the SL4421 can provide stable and reliable power control and management, injecting strong impetus into the safety and stability of battery systems. Secondly, the low on-state resistance and relatively low threshold voltage of the SL4421 provide robust support for its high energy efficiency in battery systems. Leveraging the low on-state resistance and high drain current capability of the SL4421, electric vehicle battery systems can achieve more efficient energy conversion and stable power output, thereby enhancing vehicle range and performance.

Fig.4 Parameters of Slkor Medium Voltage MOSFET SL4421

In the field of power management, the SL4421 can be applied in circuits such as switch-mode power supplies, DC-DC converters, and power inverters. In electric vehicle charging stations and battery management systems, its high voltage and current tolerance make it a critical component. Furthermore, in energy storage systems, the SL4421 also plays an important role, ensuring efficient and stable operation of energy conversion and management, improving energy utilization efficiency, and promoting wider application of renewable energy sources.

With continuous technological advancements and growing market demand, the SL4421, as an outstanding P-channel MOSFET, holds significant importance in power management, electric vehicles, energy storage systems, and other fields, and is poised to demonstrate strong potential and application prospects across various domains. As a company dedicated to power semiconductor technologies, Slkor (www.slkoric.com) is committed to developing and manufacturing high-performance, highly reliable semiconductor devices, driving technological innovation, meeting market demands, and providing customers with superior and reliable products and solutions to support the continuous development and progress of the industry.

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