ADUM4120-1BRIZ-RL

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The ADUM4120-1BRIZ-RL is an advanced high-performance optically isolated gate driver designed for driving large shear-force and low-side MOSFETs. With its low-side gate driver, it provides a fully integrated solution for controlling high-side MOSFETs, reducing board space and reducing system cost.

The ADUM4120-1BRIZ-RL has a built-in isolation threshold of 2.5kVrms, which protects sensitive components from voltage spikes, temporary over-voltage, and ground loops. It also features internal two-level transient protection for non-short-circuit events that protect sensitive gate drive circuits.

The ADUM4120-1BRIZ-RL is designed for applications requiring high-precision control of external relays, solenoids, and DC actuators. It features a wide range of protection features, including over-current, reverse-polarity protection, and over-temperature protection. It also has adjustable output voltage level selection, adjustable short-circuit protection, and adjustable soft-start limiting.

The ADUM4120-1BRIZ-RL has a working principle based on the input optocoupler, which is a critical component of the isolator. The optocoupler isolates the input from the output side, allowing voltage and ground loops to be broken. When an input voltage is applied to the collector, the optocoupler conducts and transmits the signal to the output side, transferring the signal accurately and preventing noise, spikes, and ground loops.

The ADUM4120-1BRIZ-RL is suitable for many applications including controlling relays and solenoids, automotive relay and contactor applications, HVAC applications, DC motor control, and communication equipment. It is also suitable for PLCs, robotics, and factory automation systems.

The ADUM4120-1BRIZ-RL is a great choice for systems that require the protection of sensitive equipment from voltage spikes and ground loops. By providing isolation and high accuracy, it can help reduce system cost and provide a greater degree of reliability.

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