MU20K00/20K00BA

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Resistor Networks, Arrays and the MU20K00/20K00BA Application Field and Working Principle

Resistance is the basis of many fundamental electronic components, such as resistors and other passive components. Passive components are critical in the design of complex electrical and electronic systems, as they help regulate the current flow, voltage levels, and the function of the system. Resistor networks are specially designed networks of resistors used to control and condition the electrical and electronic performance of more complex systems.

Resistor networks are most often utilized as part of larger circuit designs, like integrated circuits, microprocessors, and analog and digital oscillators. These resistor networks are typically designed using arrays of resistors connected either in series or parallel. When resistors are used in arrays, they are normally arranged in patterns or configurations of varying size and hierarchy.

One example of a resistor network is the MU20K00/20K00BA, which is a current sense resistor array created by Murata. It is part of Murata\'s family of contactless current sense resistors. It consists of two series-connected eight-resistor arrays, which provide a wide range of operating values in a single, space-saving package. The MU20K00/20K00BA has been designed to meet the requirements of devices like mobile phones, PDAs, and digital cameras.

The MU20K00/20K00BA is a four-terminal device that features a monolithic array of two resistors connected in series on each side of its printed circuit board (PCB). Each group of eight resistors are designed to have individual resistance values and current capacities, which are determined by the type of resistor material used in the application. This is achieved by testing the material and then making adjustments based on the material\'s journey through the resistor network. The resistors are also designed with a strain relief system that places the array under minimal pressure so that it can operate successfully in various environmental conditions.

The working principle of the MU20K00/20K00BA is based on current sensing. This means that the resistors monitor the current flowing through the circuit and control the amount of current allowed to pass through. This is achieved by controlling the voltage across the resistor array, which modifies the amount of resistance that is present. When current is increased, the resistors become more resistive and lower the current, and when current is decreased, the resistors become less resistive and higher the current, thus regulating the current flow.

The MU20K00/20K00BA is an excellent choice for applications that require current sensing, such as motor control, audio amplifiers, and power supplies. It is easily configured for current-mode, voltage-mode, and voltage-to-current monitoring. The small size of the device also makes it a good option for space-constrained applications, such as embedded systems and portable devices.

In summary, the MU20K00/20K00BA is an efficient resistor network and array that is designed to control and condition electrical and electronic performance of complex systems. By employing current sensing, the MU20K00/20K00BA is able to regulate current flow and voltage levels in a range of applications, from embedded systems to audio amplifiers and motor control. It is an essential component for many contemporary electronic designs.

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