ADUM3123BRZ-RL7

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The ADUM3123BRZ-RL7 are designed for industrial and commercial applications. As Isolators – Gate drivers, they offer isolation technologies that allow secure data transmission between two logic circuits that meet the needs of industry-standard protocols. This devices cross-overs isolation barriers by exploiting inductive techniques, providing a highly reliable solution for driving power transistors in a switch-mode power supply (SMPS) application.

The ADUM3123BRZ-RL7 operates in two modes: a single-ended mode and a differential mode. It is capable of sourcing and sinking up to 15 mA in the Maximum Drive Mode (MDM). The supply voltage range extends from 4.5 to 28 V, and the isolation voltage ranges up to 5 kV. This device has a 20-MHz operating frequency at a 70% duty cycle. The Slew Rate (SR) is more than 3MHz.

Moreover, the ADUM3123BRZ-RL7 provides a current-mode output structure with a built-in pull-down resistor (2k–Ω) for applications that require higher-side gate drive. It also has inbuilt temperature sensing and thermal-shutdown circuitry for overtemperature protection. In addition, its Input programming options used for applications according to the user’s requirements. There is an open-drain output pin for interlock feedback during soft-start or standby mode.

When in operation, ADUM3123BRZ-RL7 translates differential inputs to single-ended outputs through the isolation barrier. The data passes through inductive channels in the transformer core, allowing high-voltage isolation while achieving low propagation delay and fast switching. The differential signal is then rectified using a totem-pole structure, making a single-ended output. This output can be used for driving FETS, NMOS,DAC or other switch-mode power supplies at a higher speed than possible with nonisolated drives.

In addition, it offers high immunity to EMI (electromagnetic interference) and has a built-in ESD (electrostatic discharge) protection circuit. The isolated output protects the primary circuit from possible overvoltages or under-voltages faults, and the short-circuit protection features help protect the primary circuit from overloads.

In summary, the ADUM3123BRZ-RL7 is an Isolator – Gate Drive designed to meet the needs of industrial and commercial applications. Its low-power consumption, high-speed, integrated temperature sensing, and built-in ESD protection make it an ideal choice for high reliability applications. Moreover, its high-frequency operating capability and low propagation delay make it suitable for switch-mode applications.

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