SI8231AB-D-IS1

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Isolators - Gate Drivers

SI8231AB-D-IS1 is a dual gate driver isolator. It is the ideal choice for applications needing galvanic isolation between the system control and power circuits. It is designed to provide a reliable and consistent high voltage isolation of up to 4 kVACrms. This isolator is widely used in applications such as gate drivers, line and load-side transient protection, solar inverters, and motor drives.

Application Fields: SI8231AB-D-IS1 has a wide range of application fields, including industrial drives, renewable energy, power supply, medical, motor control, robotics, and automation.

Working Principle: SI8231AB-D-IS1 utilizes a transformer-based isolation technology to achieve high-voltage isolation between the two signals, protecting the system against unexpected transient voltages and spikes while maintaining electric safety.

The device is designed with an isolated transformer that is able to provide voltage isolation up to 4 kVACrms. The primary and secondary windings of the transformer are connected to integrated control, power, and ground pins of the device. The device also includes two loop closure pins to optimize transformer core overlap. When the two loop closure pins are connected, the transformer\'s core overlap is maximized and the output voltage of the device is optimized.

SI8231AB-D-IS1 also includes two driver outputs. These outputs provide high speed switching up to 180V and are driven by the internal isolator transformer. The device has a low gate drive resistance and high common mode transient immunity (CMTI) which ensures that the gate drivers have high reliability and accuracy.

The isolator also includes an integrated diagnostics feature to detect any faults in the system. This diagnostics feature provides real-time voltage monitor which displays instantaneous voltage, temperature, and fault status information in the application.

In summary, SI8231AB-D-IS1 is an ideal choice for applications needing galvanic isolation between the system control and power circuits. It offers a reliable, safe and consistent high voltage isolation of up to 4 kVACrms with its transformer-based isolation technology. Furthermore, the integrated diagnostic feature provides real-time voltage, temperature, and fault status information. This isolator is widely used in applications such as gate drivers, line and load-side transient protection, solar inverters, and motor drives.

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