FDMS0309AS

Vgs(th) (Max) @ Id:	3V @ 1mA
Package / Case:	8-PowerTDFN
Supplier Device Package:	8-PQFN (5x6)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Power Dissipation (Max):	2.5W (Ta), 50W (Tc)
FET Feature:	--
Input Capacitance (Ciss) (Max) @ Vds:	3000pF @ 15V
Vgs (Max):	±20V
Gate Charge (Qg) (Max) @ Vgs:	47nC @ 10V
Series:	PowerTrench®, SyncFET™
Rds On (Max) @ Id, Vgs:	3.5 mOhm @ 21A, 10V
Drive Voltage (Max Rds On, Min Rds On):	4.5V, 10V
Current - Continuous Drain (Id) @ 25°C:	21A (Ta), 49A (Tc)
Drain to Source Voltage (Vdss):	30V
Technology:	MOSFET (Metal Oxide)
FET Type:	N-Channel
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

FETs (Field-effect transistors)are unipolar transistors which use electric field to control the conductivity of a semiconductor. These devices can be used in many applications, including voltage regulation, switching, and amplifying. The FDMS0309AS is a single-gate Field-effect transistor in the FET family. It is a voltage-controlled semiconductor device that has a minimum breakdown voltage of-8 volts and a maximum saturation current of 2.4 amps.

Application fields

The FDMS0309AS is most commonly used for basic switching operations. It is designed for voltage-controlled, low-delay, current-limited switching. It is used in a wide variety of applications from controlling power to driving AC loads. It can be used to control the voltage on a DC/DC converter or it can be used as a buffer stage between a digital logic circuit and a motor or relay.The FDMS0309AS is also used to provide isolation in power amplifiers. By placing a FET in series with the output of the amplifier, this will reduce the noise caused by the direct connection.The FDMS0309AS is an ideal choice for power supply design. It can be used to control the voltage of the supply to within a certain range. It can also be used to provide current regulation as it will turn on and off at a given voltage range.

Working Principle

The FDMS0309AS works by using electric fields to control the current flow in the device. This is done by using a single gate-electrode which is connected to the source and the drain. When a voltage is applied to the gate-electrode, it creates an electric field which changes the characteristics of the material in the channel region. This change in the material allows current to flow from the source to the drain.The gate-electrode is also used to control the current flow. When a positive voltage is applied to the gate-electrode, the electric field increases and the current flow is increased. When a negative voltage is applied to the gate-electrode, the electric field decreases and the current flow is reduced.

Conclusion

The FDMS0309AS is a single-gate field-effect transistor which has a wide range of applications. It is used in voltage regulation, power control, switching, and amplifying. The device uses an electric field to control the current and is commonly used in power supply design. The gate-electrode is used to control the current and can be adjusted to regulate the voltage of the supply.

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