AO4494

Vgs(th) (Max) @ Id:	2.5V @ 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:	1900pF @ 15V
Vgs (Max):	±20V
Gate Charge (Qg) (Max) @ Vgs:	36nC @ 10V
Series:	--
Rds On (Max) @ Id, Vgs:	6.5 mOhm @ 18A, 10V
Drive Voltage (Max Rds On, Min Rds On):	4.5V, 10V
Current - Continuous Drain (Id) @ 25°C:	18A (Tc)
Drain to Source Voltage (Vdss):	30V
Technology:	MOSFET (Metal Oxide)
FET Type:	N-Channel
Part Status:	Last Time Buy
Packaging:	Tape & Reel (TR)

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AO4494 is a high voltage MOSFET drive designed for high current apps, it is available in low voltage (900 V) and high voltage (2200 V) versions. The AO4494 is designed for to provide superior performance and high speed over comparable designs. The AO4494 is optimized for high speed MOSFET switching in high current applications with high frequency tolerance. It includes a slew-rate control, reverse blocking capability, over-voltage protection (OVP) and thermal protection (OTP). Additionally, it offers an adjustable peak current limit to reduce switching losses and reduce EMI signature.AO4494s are suitable for a wide variety of applications such as inverters, motor controls, LED lighting drivers, and other high power switching applications. It is used in high current and high voltage applications, where low on-resistance and fast switching are required.The AO4494 is a high voltage N-channel enhancement mode MOSFET drive designed for motor control application and provides high efficiency, low gate voltage, low gate charge and excellent switching performance. Its integrated low EMI filter helps reduce the EMI components to ensure a clean operation.The working principle of AO4494 can be explained as follows. When the input voltage exceeds the threshold voltage, the MOSFET will turn on and current will pass through. The MOSFET’s gate-source voltage is then decreased, and the current will decrease. When the input voltage drops below the threshold voltage, the MOSFET will turn off, and the current will stop. This is the essential principle of operation of the AO4494. AO4494s are efficient, reliable, and affordable. It provides high speed switching, excellent EMI performance, reduce switching losses and OVP protection. It also protects against damages due to thermal overload and overcurrent. It is easy to integrate in any circuit and is compatible with various operating systems. The AO4494 is a versatile solution for high current, high voltage applications. It is designed to provide superior performance and high speed over comparable designs. With its low on-resistance and fast switching capabilities, the AO4494 is an excellent choice for applications such as inverters, motor controls, LED lighting drivers, and other high power switching applications.

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