SI82397CD-ISR

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Isolators are an important type of gate drivers, which are used in various types of electrical and electronic devices. The SI82397CD-ISR is an integrated, dual-channel gate driver designed to provide isolation and current-limiting protection to load circuits. It is designed for industrial and communication network applications, as well as automotive, home, and consumer products.

Description

The SI82397CD-ISR is a two-channel, self-protected, gate driver with a built-in deadtime control. It is ideal for applications requiring a wide range of gate drive voltage, current, and deadtime, such as power drivers and power switches. The SI82397CD-ISR integrates EMI filtering, which eliminates the need for external inductors. Lastly, the device includes advanced fault detection and protection, enabling systems to monitor and detect faults in the power network and protect load switching devices.

Application

The SI82397CD-ISR is intended for gate drive applications requiring protection and isolation from high-voltage transients. This type of gate driver is especially suitable for audio, video, and other such applications, as it offers protection against power surges, transients, or other external disturbances. Additionally, it is suitable for applications requiring a wide range of gate drive voltage and current, as well as applications requiring advance fault detection and protection.

Working Principle

The SI82397CD-ISR uses an isolated pulse transformer-based gate drive topology to transfer a gate signal from the control IC to the power switch or other device. The gate control signal is sent to the primary side of the transformer with a low drive voltage level, and then it is transferred by a high turns ratio to the secondary side where it is amplified to a level suitable for driving the power switches. The transformer provides isolation between the control side and the power side, and it also enables a high degree of flexibility and accuracy, as the drive current and voltage can be easily adjusted on-the-fly. Additionally, the transformer provides additional protection on the power side.

Conclusion

The SI82397CD-ISR is an isolated dual-channel gate driver designed for applications requiring protection and isolation from high-voltage transients. It enables a wide range of gate drive voltage and current, as well as advanced fault detection and protection. The device\'s pulse transformer-based gate drive topology allows the gate signal to be transferred from the control IC to the power switch, while providing the necessary isolation and flexibility. Through its advanced features and design, the SI82397CD-ISR ensures high performance, reliability, and protection in industrial and communication network configurations.

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