SI8282CC-ISR Isolators

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Isolators, due to their ability to insulate between two electrical circuits, are commonly used as electrical safety devices to protect circuits from the energy field of the source. They are used in a variety of applications, such as regulating electricity in cables and wires, providing protection in devices such as telephones, protecting motors from overloads, and in medical equipment. Gate drivers, which control the current going to a gate/field-effect transistor, are often used in conjunction with isolators to provide precise control over the level of current being provided. One such device is the SI8282CC-ISR application field and working principle.

The SI8282CC-ISR is a positive gate driver circuit optimized for isolator applications. This device features an integrated gatedrive circuit that helps to minimize power fluctuations and reduce power losses. It also features an adjustable dead time to prevent unwanted switching. The adjustable dead time is adjustable in 1 nanosecond increments up to 16 nanosecond increments, allowing for more precise control over the power flow. Additionally, the device includes a slew rate control to limit turn-on times to 1.5 us and turn-off times to 3 us.

The SI8282CC-ISR operates on a gold-plated external power supply and includes two internal voltage regulators, one for the supply voltage and one for the isolated voltage. The output of the isolated voltage regulator is adjusted by an external trim pot. This regulator enables the output voltage to remain constant when the external power supply voltage fluctuates. The device operates in either full-bridge mode or single-ended mode, and can be configured in both forward and reverse direction.

The device features multiple protection features, including overvoltage protection, undervoltage protection, overcurrent protection, short-circuit protection, and thermal shutdown. These features help to ensure safe operation and prevent damage to the device and other components in the system. In addition, the SI8282CC-ISR includes an asynchronous enable/disable input, allowing it to be directly controlled by the user.

The SI8282CC-ISR is easy to install and use. It requires no external components and can be powered directly from the AC line. The integrated control loop ensures that the output remains within the limits specified in the data sheet. This device is designed to function in temperatures ranging from -40°C to 120°C, allowing it to be used in a variety of applications. The SI8282CC-ISR also meets the safety requirements of UL and has been certified by the NSF.

The SI8282CC-ISR is a reliable and robust device that is suitable for many applications requiring precise control over the current flow. It provides excellent protection features and easy installation. Its adjustable dead time and slew rate control features allow for greater control over the device’s operation, and its integrated voltage regulators ensure that the output remains constant regardless of changes in the external power supply voltage. The SI8282CC-ISR is an ideal device for any Isolator - Gate Driver application.

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