FDPF17N45T

Vgs(th) (Max) @ Id:	5V @ 250µA
Package / Case:	TO-220-3 Full Pack
Supplier Device Package:	TO-220F
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 150°C (TJ)
Power Dissipation (Max):	--
FET Feature:	--
Input Capacitance (Ciss) (Max) @ Vds:	2110pF @ 25V
Gate Charge (Qg) (Max) @ Vgs:	50nC @ 10V
Series:	UniFET™
Rds On (Max) @ Id, Vgs:	300 mOhm @ 8.5A, 10V
Current - Continuous Drain (Id) @ 25°C:	17A (Tc)
Drain to Source Voltage (Vdss):	450V
Technology:	MOSFET (Metal Oxide)
FET Type:	N-Channel
Part Status:	Obsolete
Packaging:	Tube

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FDPF17N45T is a high-speed, high-current enhancement mode N-Channel Field Effect Transistor (FET) with an operating voltage of up to 45V. It is designed for both switching applications, such as voltage regulation, or as an amplifier or driver device. It is often referred to as a “Dual Gate MOSFET” as it has two control gates instead of the usual one.The FDPF17N45T is a type of Metal Oxide Semiconductor FET (MOSFET). It has a three-terminal gate, drain, and source connection, and is composed of a semiconductor channel that controls the current between the drain and the source. The FDPF17N45T operates in Enhancement mode, meaning it does not require a negative gate voltage to operate. This makes it ideal for some very low voltage applications. It is also completely compatible with the typical logic families, such as TTL or CMOS, which makes it easier to control.The FDPF17N45T is most commonly used in switch mode power supplies, motor control, and high-speed amplifier circuits. In these applications, the FDPF17N45T is highly reliable, with very low on-resistance, fast switching times, and very low noise and dispersion. Additionally, the FDPF17N45T is highly compact, which makes it ideal for use in space-constrained environments.The inner workings of the FDPF17N45T are based on the principle of the MOSFET. When a positive voltage is applied to the gate, electrons from the channel are attracted to the gate, forming a depletion layer in the channel, thus reducing the current flowing between the source and the drain. Conversely, when a negative voltage is applied to the gate, the electrons will be repelled, opening the channel and allowing more current to flow.The FDPF17N45T can also be used as an amplifier or a driver. When used in this manner, the FDPF17N45T is fed with a continuous signal from the source. The gate signals from the gate to the FDPF17N45T can be waveforms, such as a triangle wave, or a pulse-width modulated signal. These variations in the gate signal change the effective resistance of the FDPF17N45T, thus amplifying the signal or driving it to a higher voltage level.Overall, the FDPF17N45T is an incredibly versatile and reliable device, making it an excellent choice for a variety of switch-mode power supplies, motor control, and high-speed amplifier applications. With its high power, low noise, and strong small-signal characteristics, the FDPF17N45T is sure to be found in a multitude of applications.

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