EPC2100 Discrete Semiconductor Products

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The EPC2100 is an enhancement-mode (normally-off) power field-effect transistor (power FET) related to N-Channel MOSFETs (Metal Oxide Semiconductor Field-Effect Transistors). This transistor, produced by Efficient Power Conversion Corporation, features a low threshold voltage (V TH ) drain-source on-resistance (R DS(ON) ) — typical values are around 14mΩ — and is well suitable for switching applications. It has a relatively simple structure composed of three regions: source (S) connected to the negative power supply (-V SG ), drain connected to the load, and gate connected to the input signal. This transistor is frequently used in analog and power/high-voltage amplifier applications, but is particularly suitable for application in the fields of solar inverters, motor drives, and telecom and server power supplies.

The main feature of the EPC2100 is its low threshold voltage, making it ideal for providing low voltage drops in switch-mode power supplies. EPC2100 has a very low on-resistance (R DS(ON) ), which can range from 4mΩ to 17mΩ depending on the application and voltage. As a result, the device can switch heavy loads and is capable of being used as a low-resistance conductor in power circuits. Additionally, the transistor features a low input gate capacitance, excellent ESD (electrostatic discharge) protection, and a low gate-to-source voltage so that it can be driven by logic-level signals.

In terms of physical properties, the EPC2100 is housed in three main packages — SO-8, TO-220, and TO-263 — and comes in a variety of ratings ranging from 70V to 100V. Each package emphasizes different features and has distinct thermal characteristics. For instance, the TO-263 package offers good thermal performance, while the SO-8 package is more suitable for applications requiring a low component profile. The transistor’s temperature range covers up to +150C, ensuring that the device can withstand extreme temperatures.

The EPC2100, due to its advantages and features, is widely used in a variety of applications. The device is especially well suitable for high-power boost circuits, due to its high gate-to-drain voltage and very low on-resistance. Its low on-resistance capability, in combination with its excellent ESD protection, make it an ideal option for DC/DC converters, as well as power-factor correction (PFC) circuits, which are widely used in both solar and wind energy conversion. Additionally, the device is frequently used in switch-mode systems, such as motor drives, battery charger, and telecom/server power supplies.

The working principle of the EPC2100 is the same as that of all standard MOSFETs. When the input voltage at the gate is increased, the drain-source current increase correspondingly. Conversely, when the gate voltage becomes lower than the threshold voltage, the transistor is turned off and the voltage across the drain and source terminals is regulated by the source-drain resistance. Furthermore, the EPC2100 features a soft-switching mechanism that allows for smooth switching from on to off. This makes it more suitable for applications requiring high-speed switching.

In conclusion, the EPC2100 is a low-threshold power MOSFET transistor ideal for a wide range of applications. It is particularly well suitable for switching applications, due to its excellent ESD protection and very low on-resistance. Furthermore, its soft-switching mechanism allows for smooth transitions and fast switching speed. This transistor is an affordable and efficient choice for a variety of applications, such as solar inverters, motor drives, and DC/DC converters.

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