CMLDM7484 TR Discrete Semiconductor Products

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The CMLDM7484 TR is an integrated circuit (IC) package containing four n-channel depletion mode field effect transistors (FETs). It is ideal for use in high-side load switching, such as the switching of inductive loads and the control of battery voltage regulators. The package includes a unique patented self-aligning pin grid array (PGA) design, providing a low-cost, high-reliability solution that allows the FETs to be operated at higher temperatures, while still providing excellent performance.

CMLDM7484 TR Basics

The CMLDM7484 TR FET is a four-terminal device with an oxide-insulated gate structure. The terminals are called the source, drain, gate, and body. The source and drain terminals serve as the flow control gates for current flow between them. The gate terminal controls the flow of current through the FET channel. The body terminal serves as the ‘ground’ for the entire circuit and is used to control the gate operation. By varying the gate to body potential, the gate potential can be made higher, thus turning the FET on.

The CMLDM7484 TR FET is generally used in device packages that allow the FETs to be soldered directly to a printed circuit board (PCB). This simplifies their use in high-volume production applications.

CMLDM7484 TR Applications

The CMLDM7484 TR is an ideal choice for applications where high side load switching is required. These applications include but are not limited to: switching of inductive loads, high voltage regulation of voltages from 6 V to 24 V, and high frequency PWM (pulse width modulation) switching. The device’s unique patented self-aligning pin grid array (PGA) design allows the FETs to be operated over a wider temperature range than is possible with ordinary FETs.

In addition to the load switching applications, the CMLDM7484 TR can also be used for other purposes such as driving MOSFET gates, such as in PWM control systems, driving relays and small motors, and control of low voltage, low current digital logic signals. The device is also well suited for use in high-frequency switching circuits due to its low on-resistance. Due to its high current handling capability, it is also ideal for use as an efficient switching current regulator.

CMLDM7484 TR Working Principle

The CMLDM7484 TR FET works by applying a negative voltage to its gate terminal. When this negative voltage is applied, it causes a depletion region to form between the source and drain terminals. This depletion region forms a conductive channel for current to flow through the FET, thus allowing it to be turned on. The larger the applied voltage, the larger the depletion region formed and the higher the current that will flow through the FET.

The CMLDM7484 TR also has an adjustable threshold voltage. This means that it can be operated at different voltage levels depending on the desired application. This enables the CMLDM7484 TR to be used in both low and high voltage applications.

The CMLDM7484 TR has excellent temperature stability and is capable of providing reliable operation over a wide range of temperatures. This makes it well suited for applications in both low and high temperature environments. In addition, the CMLDM7484 TR has a low on-resistance and is capable of handling currents up to 40 amps. This makes it well suited for high frequency switching applications.

Conclusion

The CMLDM7484 TR is an excellent choice for high-side load switching applications, such as the switching of inductive loads and the control of battery voltage regulators. The device has an adjustable threshold voltage and offers excellent temperature stability and low on-resistance. Its unique patented self-aligning pin grid array (PGA) design allows for a low-cost high-reliability solution that enables the FETs to be operated at higher temperatures, yet still providing excellent performance.

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