IRF7809TR

Vgs(th) (Max) @ Id:	1V @ 250µA
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Power Dissipation (Max):	3.5W (Ta)
FET Feature:	--
Input Capacitance (Ciss) (Max) @ Vds:	7300pF @ 16V
Vgs (Max):	±12V
Gate Charge (Qg) (Max) @ Vgs:	86nC @ 5V
Series:	HEXFET®
Rds On (Max) @ Id, Vgs:	7.5 mOhm @ 15A, 4.5V
Drive Voltage (Max Rds On, Min Rds On):	4.5V
Current - Continuous Drain (Id) @ 25°C:	17.6A (Ta)
Drain to Source Voltage (Vdss):	30V
Technology:	MOSFET (Metal Oxide)
FET Type:	N-Channel
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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IRF7809TR Application Field and Working Principle

IRF7809TR is a type of metal oxide semiconductor field effect transistor (MOSFET). It is manufactured by International Rectifier and is commonly used in audio amplifiers, motor control and power switching applications. As a single MOSFET, it is typically used as a switch or to amplify signals. This article will discuss the application field and working principle of IRF7809TR.

Application Field

IRF7809TR has a variety of uses in different fields. One of its most commonly used applications is in audio amplifiers and motor control. These devices make use of the MOSFET’s low on-resistance, large wideband frequency response, and high switching speed to provide superior sound and control when compared to similar devices. Additionally, the low on-resistance limits the amount of current that can flow through the device, resulting in efficient use of power. In power switching applications, IRF7809TR can be used as a switch or amplifier to control the amount of current that passes through the device. By using a low voltage and current, the device can be used to regulate the current flow and thus regulate the power that is delivered to a load. The device is also frequently used as a driver in power converters, rectifiers, and power supplies.

Working Principle

The working principle of IRF7809TR is based on the fact that it is a MOSFET. MOSFETs are three-terminal devices, with the three terminals being a source, gate, and drain. When a small voltage is applied to the gate, it increases the resistance between the source and drain, allowing for the current to be controlled depending on the voltage applied voltage. This is known as voltage-controlled resistance. This resistance also allows for the switching of the device in applications that require high switching speed. By changing the voltage applied to the gate, the resistance between the source and drain varies, allowing for the switching of the device. This is known as the enhancement-mode of operation, in which the gate and drain are connected through the source and the drain is kept at a steady voltage while the gate is actively controlled.IRF7809TR can also operate in depletion mode, where the gate and drain are no longer connected. In this mode, the resistance between the source and drain increases when the voltage applied to the gate is decreased, thus allowing for current to be blocked. This mode of operation allows for IRF7809TR to be used as a switch in applications that require high switching speeds and precision.

Conclusion

In conclusion, IRF7809TR is a type of MOSFET, used for a variety of applications, from audio amplifiers and motor control to power switching and rectifiers. Its unique features and capabilities, such as its low on-resistance and fast switching speed, make it an ideal choice for these applications. Its working principle is based on the MOSFETs voltage-controlled resistance, which allows for the manual control of the current between the source and drain. Additionally, it can be operated in either enhancement or depletion modes, depending on the required application.

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