MBR40020CT

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The MBR40020CT is a diode rectifier array device in a TO-220AB package consisting of four high-current Schottky rectifiers. It is used as a discrete device in power and automotive applications to regulate and control the current flow in electrical circuits, which is related to its working principle. This device is classified as part of the diode-rectifier-array family since it provides the same general functions as other diodes and rectifiers. This article will explore its application field and working principle.

Application Field

The MBR40020CT is mainly used in power supplies such as AC power converters, gate drive suppliers, DC-DC converters, automotive on-board chargers, LED drivers, and other rectifier applications. Its current-mass efficiency make it the perfect candidate for these type of applications. Its large internal die enables the current flow to be through multiple large terminals instead of one or two large terminals. It can handle tough applications where one or two diodes won\'t suffice.

In terms of power supply usage, the device offers superior protection against reversely installed-polarity, current-surges, and voltage-spikes, due to its Schottky diodes. This makes it suitable for high-voltage applications, such as the surveillance systems and electric vehicle power systems.

In addition, the device offers the ability to control drain-source current at lower gate-source voltages, which makes it suitable for applications that require low switching times. The device also exhibits positive temperature coefficient characteristics, making it suitable for narrow operating ranges.

Working Principle

The MBR40020CT operates on a simple principle, which involves passing a current through the device to cause a voltage drop across it. This voltage drop is proportional to the current passing through it. As the current is increased, the voltage drop increases accordingly. The device has four Schottky diodes, which are connected in a parallel configuration, allowing each diode to contribute to a portion of the voltage drop. The corresponding current of each diode can be varied independently, enabling the device to be tailored to specific requirements.

The device is connected in such a way that, when a voltage is applied to one of its terminals, an electric field is created inside the device which causes the electrons to move in a certain direction. The electrons then collide with other particles and get converted into current. This current is then used to power the device and control the voltage drop across it.

In conclusion, the MBR40020CT is a diode rectifier array device which is used for power and automotive applications. Its current-mass efficiency, large internal die, and ability to handle tough current requirements make it ideal for power supplies, gate drive suppliers, DC-DC converters, automotive on-board chargers, LED drivers and other rectifier applications. Its working principle is based on a voltage drop across it, which is proportional to the current passing through it. This device can handle tough applications where one or two diodes won\'t suffice.

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