ADUM4120BRIZ

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The ADUM4120BRIZ is one in a line of Isolators - Gate Drivers, basically integrated circuits (ICs) that operates as an interface between input and output circuitry. This IC is ideal for applications that must isolate the channels in an industrial automation system for peace of mind in terms of safety and reliability. It is also well suited for connecting the first voltage sensitive gate to the high voltage field in a power electronic system. It can switch at high speeds, as well as, have improved system performance. This type of IC also reduces susceptibility to conducted noise, hence, increasing system robustness and reliability.

The ADUM4120BRIZ Isolator - Gate Driver has two input channels and four output channels. The input channels are controlled by two independent voltage digital logic gate drivers. The output channels can drive two complementary pairs of low side power MOSFETs from the two differential pairs. It has 6W RDS(ON) of low side MOSFETs and provides support for two low side N-Channel MOSFETs and/or two high side P-Channel MOSFETs. With the help of two low voltage digital buffers, the input channels can be driven by various logic families such as CMOS, PMOS, and NMOS. The output drivers are capable of driving various pulse widths such as 5–20 μs.

The ADUM4120BRIZ Isolator - Gate Driver was designed with galvanic isolation technology. This means that it uses a combination of capacitive and inductive coupling to provide galvanic isolation for its high side and low side MOSFETs. It has an isolation voltage of 2500 Vrms and a breakdown voltage of 890 Vrms. This combination of reliable isolation technology and high voltage protection make this IC the ideal choice for power electronics applications.

The working principle is simple and effective. When a signal is sent from the first voltage sensitive gate, it will pass through the gate driver. This will tell the output channels to switch on and off, thereby controlling the power electronic system. In this way, the ADUM4120BRIZ Isolator - Gate Driver can provide the necessary isolation and protection to the circuit boards it is connected to. The working of the gate driver can be monitored by monitoring the voltage on the input channels.

In conclusion, the ADUM4120BRIZ Isolator - Gate Driver is an ideal solution for industrial automation systems that require high speed switching and reliable isolation. This IC provides galvanic isolation and can be used to drive two low side N-Channel MOSFETs or two high side P-Channel MOSFETs. Additionally, the working principle is simple and it can be easily monitored by monitoring the voltage on the input channels. All these factors make this IC the perfect choice for power electronics applications.

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