SI88642EC-ISR

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Digital isolators are electronic devices typically used to protect a low-voltage signal from a hostile environment or provide isolation between two circuits. The SI88642EC-ISR Digital Isolator is a ruggedized, small form factor, and high-speed solution offering reliable isolation up to 15kV/µs. It combines a low propagation delay time of less than 10 ns with unblocked creepage and clearance spaces of up to 8 mm, making it the perfect choice for applications such as automotive, industrial, medical and consumer.

SI88642EC-ISR Application Field

The SI88642EC-ISR is designed for applications in the automotive, industrial, medical and consumer markets. It is a versatile device that is easy to use and provides excellent performance in challenging environments. It has a low power consumption, making it suitable for battery-operated systems. In automotive applications, it can be used for communications, vehicle control systems, audio systems, and infotainment systems. In industrial applications, it can be used for making isolation between the control circuits to prevent malfunction caused by EMF. In medical applications, it can be used for patient monitoring systems, life support systems, diagnostic systems, and medical device telemetry. In consumer applications, it can be used for smart home and lighting applications, as well as consumer audio and video systems.

SI88642EC-ISR Working Principle

The SI88642EC-ISR is based on an advanced capacitive isolation technology. It consists of two CMOS integrated circuits with capacitive isolation in between them. The two parts are separated by a dielectric material that acts as an insulation barrier, preventing the transfer of power, signals, or other energy between the two circuits. This isolation prevents any electrical noise from passing between the two circuits and also prevents any mechanical contact between the two circuits. The isolation barrier created by the dielectric material also ensures that the circuit is immune to changes in temperature and humidity, making it much more reliable than other types of isolators. The SI88642EC-ISR uses a proprietary capacitive isolation technique to achieve a very high isolation rating of up to 15kV/µs, while still maintaining a low propagation delay of less than 10 ns.

The SI88642EC-ISR offers two types of connections: one-directional or bidirectional. The one-directional connection allows the device to pass information from one side of the isolation barrier to the other without any return path. This is useful for applications such as power monitoring and non-interruptible power supplies, where it is important to measure the parameters of a system without affecting the performance on the other side of the barrier. The bidirectional connection allows bi-directional communication between the two sides of the isolation barrier. This is useful for applications such as communication systems, motor controls, and signal conditioning.

The SI88642EC-ISR also offers a range of features to ensure that the circuit remains reliable and safe for use. It has data rate selection, input levels, supply voltage drop, current limiting, and SDCI noise immunity. It also has built-in safety features such as fault detection, output inhibiting, and soft-start.

The SI88642EC-ISR is a small form factor, ruggedized solution that offers reliable, high-speed, and safe digital isolation. Its low propagation delay time and up to 15kV/µs isolation rating make it an ideal choice for a range of applications in the automotive, industrial, medical, and consumer markets. Its low power consumption and robust safety features make it a reliable and cost-effective option for any system requiring isolation.

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