2N6790

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The 2N6790 is a high power N-channel MOSFET typically used in applications where high power and low on-resistance are both necessary. It is a TO-220 package, capable of passing 6A of current. The channel is sandwiched between a pair of source and drain leads. A gate terminal controls the switching of the channel.

Application Field

The 2N6790 is often used in automotive applications, such as motor control and power management. It is also found in power supplies and high power audio amplifiers. In these applications it is often connected to an external gate driver in order to drive the gate voltage high enough to switch the device. It can also be used as a switch, or as a linear regulator in certain cases.

Working Principle

The 2N6790 is a metal-oxide-semiconductor field-effect transistor (MOSFET). The gate terminal is insulated from the channel by an oxide layer, and is used to control the current flowing through the device. When a voltage is applied to the gate, it generates an electric field which polarizes the devices’ channel. This polarizing effect causes a depletion layer to form at the area of highest field strength, blocking the current from flowing from source to drain. By changing the magnitude of the applied voltage at the gate, the MOSFET can be used as a switch.

When operating in the linear mode, the 2N6790 is used as a variable resistance. The current flowing through the device varies with the voltage applied to the gate terminal. This relation between the drain current and gate voltage is known as the device’s transfer characteristics. With a low gate voltage, the channel is opened and current can flow freely from source to drain. As the gate voltage is increased, the channel is gradually closed, reducing the current. The linear mode of operation can be used to control the current in motor control applications, or as a voltage regulator.

The 2N6790 is a versatile MOSFET, suitable for a variety of applications where high power and low on-resistance are both important. Its ability to control current in both switch and linear modes make it suitable for a variety of automotive and industrial applications. Through careful selection of the drive voltage, it can be used to control current flow over a wide range of applications.

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