SI8251-IM

Power Supply Controllers, Monitors Overview

The SI8251-IM is a single-channel digital isolator from Skyworks Solutions, designed for robust signal transmission across isolation barriers. It features a high common-mode transient immunity of 100 kV/µs and operates with a supply voltage range of 3.0 V to 5.5 V. The device provides galvanic isolation up to 5000 Vrms and supports data rates up to 150 Mbps. It utilizes CMOS technology for low power consumption and includes a built-in delay time of typically 7 ns.

Power Supply Controllers, Monitors Feature Summary

• High common-mode transient immunity ensures reliable operation in noisy environments
• Single-channel configuration simplifies circuit design for isolated communication links
• CMOS architecture enables low power consumption and fast switching speeds

Power Supply Controllers, Monitors Applications

• Industrial automation systems requiring isolated sensor interfaces
• Medical equipment needing patient isolation barriers
• Power electronics control circuits for motor drives

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'IM' indicates the correct temperature range and package type during procurement. Confirm that the ordering part number matches the required isolation voltage rating and pinout configuration for your application. Ensure compatibility with your system's logic levels and supply voltage requirements before placing orders.

Power Supply Controllers, Monitors Selection Notes

Choose this component when a single-channel isolator with high CMTI is needed. Consider the 150 Mbps data rate capability for high-speed applications. Evaluate the 5000 Vrms isolation rating against your safety standards. Compare power consumption metrics if battery life is critical.

Power Supply Controllers, Monitors Part Context

This part belongs to Skyworks' Si82xx family of digital isolators. These devices are engineered to replace traditional optocouplers in modern designs. They offer superior performance in speed, power, and reliability. The family supports various channel counts and isolation voltages.

Power Supply Controllers, Monitors Replacement Considerations

Check for direct replacements within the Si82xx series. Verify pin-to-pin compatibility with existing designs. Ensure substitute parts meet the same isolation voltage and CMTI specifications. Confirm availability of equivalent packages.