ADUM4121-1BRIZ

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Isolators, also known as galvanic isolation, are devices used to keep two systems that are electrically connected, but physically separated. Examples of isolators include power transformers, remote communications links, medical imaging systems, and power lines. The ADUM4121-1BRIZ isolator is an integrated, single-channel, isolated gate driver that provides isolation and high efficiency protection characteristics between two isolated systems.

This gate driver is designed for use in applications such as ADAS, plant automation, robotics, medical, and industrial control. It is ideal for high-efficiency, high-performance applications requiringfast switching, reliable operation, and superior immunity performance against critical failures, as well as providing isolation back to the main power system for a safe, secure operation. It is completely isolated, and the isolation rating is rated at 600 VDC. It includes a single-ended input and output, and is designed to drive both N-type MOSFETs and H-type IGBTs.

The ADUM4121-1BRIZ isolator offers a slew rate of up to 25 V/μs and a duty cycle range of 0%-100%, allowing it to operate at higher frequencies than traditional isolators. It is capable of switching up to 70 kHz and can operate up to 85° C without the need for any additional cooling. It is also UL and cUL certified.

The working principle of the ADUM4121-1BRIZ isolator is simple. It uses high-efficiency optically-isolated gate-drive circuitry to provide high-efficiency electrical isolation between two systems. It utilizes a dual-mode receiver to accept digital input signals and automatically optimize the gate drive for the most efficient high-speed response. Its high-efficiency, single-ended topology optimizes power efficiency and eliminates the need for external components. The input and output are externally isolated, allowing it to work with wide common-mode voltage ranges.

The ADUM4121-1BRIZ isolator provides both mechanical and electrical isolation, and is designed to operate in harsh environments. It can be used in automotive, industrial, power systems, and medical applications that require high-reliability and electrical isolation in order to protect sensitive components. Its high-speed switching capabilities make it suitable for applications with demanding switching speeds. Additionally, its isolated input and output enable it to provide protection against power surges and electromagnetic interference.

The ADUM4121-1BRIZ isolator is an integrated gate driver that provides high-efficiency, reliable isolation between two systems. Its high-speed switching capability makes it suited for applications that require fast response times, while its isolationrating provides superior immunity from power surges and electromagnetic interference. Its UL certification ensures that it is safe to use in a wide variety of applications, and that it meets all safety standards.

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