IRF9640S

Vgs(th) (Max) @ Id:	4V @ 250µA
Package / Case:	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Supplier Device Package:	D2PAK
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Power Dissipation (Max):	3W (Ta), 125W (Tc)
FET Feature:	--
Input Capacitance (Ciss) (Max) @ Vds:	1200pF @ 25V
Vgs (Max):	±20V
Gate Charge (Qg) (Max) @ Vgs:	44nC @ 10V
Series:	--
Rds On (Max) @ Id, Vgs:	500 mOhm @ 6.6A, 10V
Drive Voltage (Max Rds On, Min Rds On):	10V
Current - Continuous Drain (Id) @ 25°C:	11A (Tc)
Drain to Source Voltage (Vdss):	200V
Technology:	MOSFET (Metal Oxide)
FET Type:	P-Channel
Part Status:	Obsolete
Packaging:	Tube

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IRF9640S Application Field and Working Principle

The IRF9640S is a metal-oxide semiconductor field-effect transistor (MOSFET) that is used to control the flow of current between two terminals. This transistor has a single gate terminal and functions as an inverting switch. It is constructed with a single layer of p-doped semiconductor material sandwiched between two layers of metal-oxide, which makes it a insulated-gate transistor. It is a voltage-controlled switch, as the current flow can be varied depending on the applied voltage.These transistors are commonly used in power management and switching applications, as they are able to control large amounts of current with minimal effort. This is because of their low source-drain resistance. Applications for the IRF9640S can range from amplifiers for audio systems to controlling solar panel arrays and the switching of motors.The IRF9640S is a n-channel enhancement-mode device, meaning that it operates in depletion-mode when a positive voltage is applied. Applying a positive voltage to the gate increases the current flow between the source and drain terminals, while applying a negative voltage decreases the current flow. This is because the positive voltage depletes the majority carriers in the channel, diminishing the resistance between the source and drain terminals.This transistor also has kickback protection, meaning that the voltage between the drain and source terminals is clamped so that it won’t exceed the maximum voltage applied to the gate. This prevents the IRF9640S from reversing its current flow and creating potential damage to other components. In addition, it allow helps it to switch off quickly in response to an input signal, meaning that it will draw only minimal power when it is in the off-state.The IRF9640S also features an integral protection mechanism known as thermal shutdown. This prevents the device from drawing more power than it is designed to by sensing and reacting to increases in the channel temperature. This is an important feature as it helps to avoid damage to the transistor and other components of the circuit from high temperatures.The IRF9640S is an invaluable component in many electronic circuits and the study of its working principle is essential for anyone designing and building electronic circuits. This transistor is versatile and capable of handling high power loads with ease. Its protection mechanisms and simple operating principle make it an excellent choice for many applications, making it a vital component to consider when designing electronics.

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