AO4454

Vgs(th) (Max) @ Id:	4V @ 250µA
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Power Dissipation (Max):	3.1W (Ta)
FET Feature:	--
Input Capacitance (Ciss) (Max) @ Vds:	1450pF @ 50V
Vgs (Max):	±25V
Gate Charge (Qg) (Max) @ Vgs:	23nC @ 10V
Series:	SDMOS™
Rds On (Max) @ Id, Vgs:	36 mOhm @ 6.5A, 10V
Drive Voltage (Max Rds On, Min Rds On):	7V, 10V
Current - Continuous Drain (Id) @ 25°C:	6.5A (Ta)
Drain to Source Voltage (Vdss):	100V
Technology:	MOSFET (Metal Oxide)
FET Type:	N-Channel
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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<h3>AO4454 Application Field and Working Principle</h3><p>The AO4454 is a type of Metal-Oxide Semiconductor Field-Effect Transistor (MOSFET) and is known as a single N-channel MOSFET. N-channel MOSFECTs are the most commonly used type of MOSFETs, accounting for over 80% of all MOSFET types. The AO4454 is relatively small, with a peak drain-source voltage (Vds) of 14V, drain-source on-state resistance (Rds) of 1.5ohm and maximum current (Id) of 1.4 A. This type of MOSFET is primarily used for switching and regulating current in various kinds of electronics.</p><p>A MOSFET is a transistor that is composed of several different layers of metal-oxide and metal, which give the transistor its unique capabilities. The metal-oxides help provide insulation between the different layers of the transistor and also reduce the amount of capacitance between the different layers, making the device highly efficient, reliable and low power. The MOSFET works by controlling current flow between the source and drain terminals by applying a voltage to the gate terminal. When a voltage is applied to the gate, this causes a current to flow through the metal-oxide layer, which in turn creates a depletion region that helps block current flow and therefore regulate the current through the device.</p><p>The AO4454 can be used in a variety of applications, including motor drives, H-bridge motor drivers, LED and LCD backlighting, automotive electronics, DC-DC converters, audio circuits and more. It is well suited for switching high currents with minimal power loss and provides good noise and transient immunity. The AO4454 is also commonly used in switch mode power supplies as a switching component in either buck or boost converters, providing precise and efficient current control.</p><p>In summary, the AO4454 is a single N-channel MOSFET device, with a peak drain-source voltage (Vds) of 14V, drain-source on-state resistance (Rds) of 1.5ohm and maximum current (Id) of 1.4 A. It is typically used for switching and regulating currents and in high-current applications with minimal power loss. The AO4454 is also well suited for use in switch mode power supplies, providing precise and efficient current control in buck or boost converters.</p>

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