FDS3890

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The FDS3890 is an array of N-Channel Trench MOSFET transistors with individual source and gate connections. It was first introduced in 1995, and since then its popularity has been growing among many electronics professionals. It is commonly used in motor control, industrial motor controls, digital circuits, power supplies, and audio applications. This article will discuss the application field and working principle of the FDS3890.

Application Field

The FDS3890 is mainly designed for automotive, lighting and home appliance systems. It can also be used in power control, lighting circuit, motor control and energy management systems. It is designed to provide high current and low on-state resistance for heavy loads, such as solenoids, motors, and other inductive loads. It also provides low drive current for small loads and low-current devices.

The FDS3890 is used in motor control applications, such as controlling the motor speed, torque, direction and current. It can be used to control the current of small DC motors and the speed of AC motors. It is also used in power supplies, such as data-switch circuits, load switches, power converters and power inverters. In audio applications, the FDS3890 is used to control the current in audio amplifiers and audio power amplifiers.

The FDS3890 is also often used in data communications and in military and aerospace applications, due to its low on-state resistance, low drive current and fast switching speeds. The FDS3890 can be used in RF systems, such as amplifiers, filters and power amplifiers, for higher current gain and lower noise. It can also be used in digital systems, such as digital logic and digital processing.

Working Principle

The FDS3890 is an array of N-Channel MOSFET transistors, each with individual source and gate connections. The gate is the control terminal, and when a voltage is applied to it, the FDS3890 will pass current from its source to the drain. The amount of current that can be passed depends on the voltage applied to the gate. When the voltage is low, the FDS3890 will not conduct, and when the voltage is high, the FDS3890 will conduct at its maximum current rating.

The FDS3890 has two states, the on-state and the off-state. In the on-state, the FDS3890 will conduct current from the source to the drain at its maximum current rating. In the off-state, the FDS3890 will not conduct current. The on-state resistance of the FDS3890 is very low, typically between 0.2 and 0.5 ohm, and is highly temperature compensated. The off-state resistance is very high, typically thousands of ohms, depending on the voltage applied to the gate.

The FDS3890 is also designed to provide fast switching speed, which allows the FDS3890 to quickly switch between the on-state and off-state. This makes it well suited for motor control and other applications where high switching speed is required. The FDS3890 also has a very low drive current and is designed to operate in harsh environments such as high temperature and vibration. This makes it ideal for automotive and industrial applications.

To summarize, the FDS3890 is an array of N-Channel Trench MOSFET transistors with individual source and gate connections. It is often used in motor control, industrial motor controls, digital circuits, power supplies, audio applications, and data communications, as well as in RF and military systems. This article has discussed the application field and working principle of the FDS3890.

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