MURTA30020R

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Diodes are electronic components that allow electrical current to flow in one direction, while blocking it in the other direction. Rectifiers are a type of diode that converts alternating current to direct current. Arrays are collections of components jointly wired together and typically used for a single purpose in electronic circuits. The MURTA30020R is a diode-rectifier array integrated circuit (IC) manufactured by ON Semiconductor for use in a wide range of automotive applications. In this article, we will discuss the application field and working principle of the MURTA30020R.

The MURTA30020R has been designed specifically for automotive applications, where high-power switching and high surge current handling are required. It is designed specifically to handle the 12V alternator voltage present in vehicle batteries. It utilizes two 20A Schottky power rectifiers and two 4A MOSFETs to switch large current and provide a very low on-state resistance (R_DS(on)). This allows for the rapid charging of vehicle batteries, as well as high power delivery when the vehicle is idling or in low-speed cruise mode. The device also has protection against reverse battery connection, as well as an in-circuit overcurrent protection feature.

The MURTA30020R can also be used in other automotive applications, such as auxiliary power supplies, boost converters, and motor controllers. In high power applications, such as motor controllers and power supplies, it can provide up to 20A current at 12V voltage, with a very low on-state resistance. In boost converters, it can provide an efficient power conversion and deliver high output current with low voltage drop. In low power applications, such as in-car entertainment systems and communication transmitters, it can provide low power operation with very low power dissipation.

In terms of its working principle, the MURTA30020R operates on a four-way switch system. The first switch connects the positive terminal of the diode rectifier array to the circuit power supply; the second switch connects the negative terminal of the array to the circuit power supply; the third switch connects the positive terminal to the appropriate circuit load; and the fourth switch connects the negative terminal to the corresponding circuit load. When the four switches are in the on state, current flows in both directions through the circuit; however, when the switches are in the off state, current only flows in one direction through the circuit.

The MURTA30020R has various protection features built-in. It has an electrostatic discharge (ESD) protection circuit which prevents excessive current flow if the circuit is exposed to a high voltage or current. It also features an overcurrent protection circuit which shuts down the circuit if the current exceeds the device’s specified safe limit. Other protection features include reverse battery protection, integrated thermal shutdown, as well as a short-circuit detection circuit.

Overall, the MURTA30020R is a powerful diode-rectifier array integrated circuit manufactured specifically for automotive applications. It can handle large currents, deliver low on-state resistance, and provide protection against power surges, reverse battery connection, and short circuit conditions. It is well suited for use in boost converters, motor controllers, and auxiliary power supplies, as well as other automotive applications where current handling and voltage drop characteristics are important.

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