FDMS86520

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FDMS86520 Application Field and Working Principle

The FDMS86520 is a logic N-Channel MOSFET (metal–oxide–semiconductor field-effect transistor) by Fairchild Semiconductor, which is a leading semiconductor manufacturer. This type of transistor is designed specifically for switching on and off the power in lines and is used in numerous power management applications. This article will discuss the application field of the FDMS86520, as well as its working principle.

Application Field of the FDMS86520

The FDMS86520 is primarily used in power management applications, primarily those benefiting from its extreme low static and dynamic on-resistance. Examples of such applications are, but are not limited to, DC-DC converters, synchronous rectifiers, power switches, general-purpose power-switching applications, and lighting systems. Additionally, the FDMS86520 is also widely used in automotive, consumer and wireless applications, due to its ultra-low gate charge.

Working Principle

As with most transistors, the FDMS86520 uses a three-terminal design, giving it three distinct pins. The input pin (gate) is the one that controls the device. An electrical input through this pin “switches on” the transistor, allowing current to flow. The source pin (middle pin) is the input for the current and the drain pin (right pin) is the output for the current.

The FDMS86520 is an N-Channel MOSFET. Its N-Channel MOSFET construction is what gives the device its low on-state resistance, making it useful for power management applications. Being an N-Channel device, a voltage applied at the gate will cause the channel to be formed, allowing electrons to flow from the source to the drain with low impedance.

Conclusion

The FDMS86520 is a powerful N-Channel MOSFET designed by Fairchild Semiconductor, mainly used in power management applications. Its low static and dynamic on-resistance makes it ideal for switching on and off the power in lines, as well as DC-DC converters, synchronous rectifiers, power switches, general-purpose power-switching applications, and lighting systems. Additionally, its ultra-low gate charge makes it suitable for automotive, consumer and wireless applications. This article has outlined the application field and working principle of the device, providing a good overview of its functionalities.

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