FST30100 Application Field and Working Principle

Introduction

The FST30100 is a fast-switching, dual-channel, low-voltage rectifier diode array manufactured by FLIR System. It has been designed for maximum power handling and pulse current capability. In addition, it features excellent switching characteristics and thermal performance. The device can be used in a variety of applications, including power control, motor drive, laser power control, and power supply.

Application Field

The FST30100 can be used in many power control and power supply applications. Its low voltage drop and fast switching enable it to efficiently pass energy at high frequencies. This makes it ideal for applications like power control and motor drive systems, where pulse width modulation (PWM) is used to control motor speed. It is also suitable for switching laser power supplies and other high-current, high-frequency applications.

Design Features

The FST30100 is designed with an integrated two-foil construction for two-channel operation. The two-foil construction ensures low on-resistance and low forward voltage drop. This allows the device to operate at high current and high frequencies without significant power losses. The device also features a low Qrr (reverse recovery time) to reduce electrical noise and associated losses.

Technical Parameters

The key technical parameters for the FST30100 are as follows: Reverse Voltage: 100V; Forward Voltage: 0.5V (max); Reverse Current: 15A (max); Forward Current: 25A (max); Reverse Power Rating: 800mW; Thermal Resistance (Junction to Case): 2.0°C/W; Switching Time: 0.2µs; Operating Temperature Range: -55°C to 125°C.

Working Principle

The FST30100 is a dual-channel rectifier diode array. When a voltage is applied across a diode, it allows current to flow actively in one direction (positive to negative). This allows the device to effectively convert alternating current (AC) to direct current (DC). The device works by allowing current to flow in one direction and blocking it from flowing in the opposite direction. This is done by utilizing the PN junction characteristics of a diode, which only allows current to flow in one direction.

Conclusion

The FST30100 is a fast-switching, dual-channel, low-voltage rectifier diode array that provides efficient power handling and pulse current capability. It has been designed for power control, motor drive, laser power control, and power supply applications due to its low voltage drop and fast switching times. Its low Qrr ensures minimal noise levels, while its low thermal resistance ensures optimal performance.