IRFS7787PBF

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IRFS7787PBF Application Field and Working Principle

The IRFS7787PBF is a popular power MOSFET from International Rectifier. It is a high density, high voltage, vertical double diffused N-Channel MOSFET with an 8-amp current capacity and a 500V drain-source voltage rating. This makes the IRFS7787PBF ideal for a wide range of applications, including power supplies, automotive electronics, lighting, LED drivers and telecommunication equipment.

Features of the IRFS7787PBF

The IRFS7787PBF features a very low RDS(on) resistance, which allows it to switch high current with minimal losses. It is extremely efficient when used with switching power supplies due to its high voltage rating of 500V and its ability to handle up to 8A of continuous drain current. It also features a very low drain-to-source capacitance of only 12pF, which helps to reduce parasitics and improves the performance of high speed switching power supplies. Additionally, the IRFS7787PBF comes with a package optimized for excellent mounting thermal transfer, which allows it to operate at higher temperatures for improved reliability and power dissipation.

Applications of the IRFS7787PBF

The IRFS7787PBF is a versatile device and can be used in a variety of applications. Its high voltage and current capacity makes it suitable for many power supply designs. Additionally, its low drain-to-source capacitance makes it well-suited for high speed switching power supplies. It can also be used in automotive electronics, lighting systems, LED drivers, and telecommunication equipment.

Working Principle of the IRFS7787PBF

The IRFS7787PBF is a vertical double diffused MOSFET. It consists of a source, drain, gate, and body. When the voltage on the gate is increased, the resistance between the source and the drain decreases. This allows the MOSFET to switch high current with minimal losses. The IRFS7787PBF has a very low RDS(on) resistance, which helps to reduce power losses and improve efficiency.

The IRFS7787PBF also features a low drain-to-source capacitance. This helps to reduce parasitics, which are unwanted currents that can occur during the on-off switching of the MOSFET. The low capacitance of the IRFS7787PBF helps to reduce these parasitics, which improves the efficiency and performance of high speed switching power supplies.

The low reversed transfer capacitance of the IRFS7787PBF also helps to improve the efficiency and performance of switching power supplies. When a MOSFET is switched on, charge is transferred from the source to the drain. This charge transfer results in a reversed current flowing from the drain back to the source. This reversed current can decrease the efficiency of the power supply, however the low reversed transfer capacitance of the IRFS7787PBF helps to reduce these losses.

Conclusion

The IRFS7787PBF is a versatile and efficient power MOSFET which can be used in a variety of applications. It features a very low RDS(on) resistance, which helps to reduce power losses and improve efficiency. Additionally, its low drain-to-source capacitance helps to reduce parasitics and improve the performance of high speed switching power supplies. The IRFS7787PBF is an ideal device for a wide range of applications, including power supplies, automotive electronics, lighting, LED drivers and telecommunication equipment.

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