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Introduction: The MMBD4148TW-7 is a quadruple diode array from ON Semiconductor. It is mainly used to build rectifiers and switch in high speed circuits. It is also suitable for preventing mutual interference between adjacent signals. Additionally, it is also used for high power application. This application note explains its main application areas, the working principle and its key parameters.

MMBD4148TW-7 Application Field

The MMBD4148TW-7 is a diode array that combines both Schottky and standard diodes in a single four-pin package. It is mainly used in high-speed circuits, where it helps to reduce the time required for switching, while also helping to improve the overall system performance. It is also used to prevent mutual interference between adjacent signals in high-speed systems. Additionally, the device features a low dynamic resistance, which helps to improve overall system efficiency.

Some of the other applications of the MMBD4148TW-7 are:

• High Efficiency Diode-Linked Voltage Regulator.
• High Efficiency Power Rectification.
• High Efficiency Switching.
• High ESD Sensitivity Protection.

The MMBD4148TW-7 is also suitable for use in high power applications such as solid-state lighting and industrial lighting.

MMBD4148TW-7 Working Principle

The MMBD4148TW-7 is a four-diode array, with two Schottky diodes and two standard diodes. It has an anode connected to a common terminal, and a cathode connected to a separate terminal. The device works by allowing an AC signal to flow through the Schottky diodes, while blocking any reverse current due to the presence of the standard diodes.

This diode array is also useful in applications where the Schottky diode reduces the conduction time, while the standard diode prevents reverse current. Additionally, the device offers protection against over-voltage and over-current, as well as ESD attacks.

MMBD4148TW-7 Key Parameters

The MMBD4148TW-7 has the following key electrical parameters:

• Forward Voltage Drop: 0.45V (nominal)
• Forward Current: 4A (maximum)
• Reverse Leakage Current: 10uA (maximum)
• Package: SOT-23-3

Conclusion: The MMBD4148TW-7 is a four diode array from ON Semiconductor. It is mainly used in high-speed circuits, where it helps to reduce the time required for switching, while also helping to improve the overall system performance. Additionally, it is also suitable for high power application. The device features a low dynamic resistance, which helps to improve overall system efficiency, as well as protection against over-voltage and over-current, as well as ESD attacks.

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