SI8271BB-ISR

Isolators - Gate Drivers

The SI8271BB-ISR is a digital isolator integrated circuit from Silicon Laboratories. It uses a patented iCoupler isolation technology to enable robust communication between isolated circuits. As a result, the isolator provides cost-effective signal and protocol isolation solutions for a wide range of applications.

The SI8271BB-ISR isolator has several unique features that make it suitable for a range of different application fields. In particular:

• High speed digital isolation up to 10MHz
• 12Mbps data rate
• Low power consumption
• Robust noise immunity
• Immune to EMI and RFI interference
• Excellent CMRR and signal-to-noise ratio
• High temperature operation up to 150°C
• Low leakage current

The SI8271BB-ISR is suitable for a wide range of applications, including motor control, factory automation, industrial process control, medical device applications, automotive electronics, and many more. It is particularly useful in systems that require either the communication between two isolated systems or the protection of analog signals from EMI/RFI interference.

Working Principle

At the heart of the SI8271BB-ISR isolator is its patented iCoupler channel isolation technology. This innovative technology leverages miniaturized transformers to create digital isolation barriers between circuits. The isolator also utilizes a reinforced insulation barrier that helps to prevent breakdowns and malfunctions due to EMI/RFI interference. In addition, the isolator features an opto-coupler to further protect the signals by reducing the capacitive coupling between the two circuits.

The SI8271BB-ISR isolator is comprised of two main components: the transmitter and receiver. The transmitter is designed to convert the digital signals from the system\'s native logic voltage to the transmitter\'s output voltage. Once processed, these digital signals are passed through the isolator\'s transformer which isolates the signal and then passes it onto the receiver. The receiver then processes the signal and converts it back to the original logic voltage, allowing for communication between two isolated circuits without the need for direct contact.

The SI8271BB-ISR isolator allows for highly reliable communication between two isolated systems. Its patented iCoupler technology ensures that signals are accurately transmitted and securely isolated, providing a robust solution for a wide range of applications.