FDS89161 Discrete Semiconductor Products

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The FDS89161 is an array of power FETs that never need to be turned off. In addition to operation over a wide range of temperatures, these parts can simultaneously regulate multiple power rails with very low Vgs and low Rds(on). Therefore, it is perfect for applications such as server power supplies, input-output converters, some automated test equipment, and so on.

Working Principle

The FDS89161 uses a control input to regulate the output voltage. This control input is typically an external voltage reference, a voltage divider, or a resistor, depending on the application. The control input is used to modulate the gate voltage of the FETs, thereby controlling their output voltage.

The FET array consists of two devices that are arranged in a cascode configuration, with the drain devices connected in series. The combination of the two FETs creates a very low output voltage, which is regulated by modulating the gate voltage of the upper FET. The combination of the low output voltage and the extremely low Vgs of the FETs provides the FDS89161 with a very low Rds(on), which allows it to be used in power applications such as server power supplies.

Applications

The FDS89161 is suitable for use in applications such as server power supplies, input-output converters, automated test equipment, and so on. Its low Vgs and low Rds(on) allow it to be used in applications where very low output voltages are needed. It is also suitable for use in higher-power applications, as the output voltage can be easily regulated. In addition, the cascade configuration of the FETs gives the FDS89161 a high power density, allowing it to be used in applications where size is a factor.

The FDS89161 is also suitable for use in automotive applications, as the FETs can handle temperatures ranging from -40°C to +125°C. This makes it an ideal choice for applications where long operating lifetimes are required. In addition, the cascade configuration increases the reliability of the FETs, enabling them to operate for a long time in harsh environments.

The FDS89161 is also suitable for use in applications where precision is needed. The combination of the FETs and the cascode configuration makes it possible to regulate the output voltage with very high accuracy. This makes it ideal for applications such as automated test equipment and power supplies, where precision is essential.

Conclusion

The FDS89161 is an array of power FETs that never need to be turned off. Its wide operating temperature range, low Vgs and low Rds(on) make it suitable for use in a variety of applications, such as server power supplies, input-output converters, automated test equipment, automotive applications, and other power applications. In addition, the FETs can be precisely regulated, making it ideal for applications where accuracy is needed.

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