SI8621BT-IS2

Digital Isolators Overview

The SI8621BT-IS2 is a unidirectional digital isolator from the Si862x series, manufactured by Skyworks Solutions Inc. It features two independent channels with a data rate of 150 Mb/s and an insulation voltage of 5000 Vrms. The device utilizes capacitive coupling isolation technology and operates within a supply voltage range of 2.5 V to 5.5 V. It exhibits a propagation delay of 8 ns and supports a pulse width of 5 ns. The component is qualified under AEC-Q100 standards for automotive applications and functions reliably across a temperature range of -40°C to +125°C. It is housed in a 16-pin SOIC-Wide package.

Digital Isolators Feature Summary

• Provides high-voltage isolation with 10 kV surge capability and 5000 Vrms insulation rating
• Features low propagation delay of 8 ns and fast rise/fall times of 4 ns for signal integrity
• Includes a shutdown pin for power management and control flexibility
• Delivers high common-mode transient immunity (CMTI) of 60 kV/µs

Digital Isolators Applications

• Automotive electronic control units (ECUs)
• Industrial motor drives and inverters
• Power supply feedback loops
• General-purpose isolated communication interfaces

Digital Isolators Procurement Notes

Verify that the specific suffix 'IS2' corresponds to the required 16-pin SOIC-Wide package configuration and unidirectional channel polarity. Confirm compliance with AEC-Q100 automotive qualification requirements if deploying in vehicle systems. Ensure the selected variant matches the necessary insulation voltage ratings and operating temperature ranges specified for the target application environment.

Digital Isolators Selection Notes

Select this component when unidirectional signal isolation is required between circuits with different ground potentials. The 150 Mb/s data rate suits moderate-speed digital communication needs. Consider the 16-pin wide SOIC package for PCB layout constraints requiring wider spacing. Verify that the 5000 Vrms insulation level meets the safety isolation requirements of the system design.

Digital Isolators Part Context

This part belongs to the Si862x family of digital isolators, which are designed to replace traditional optocouplers. The family offers improved performance metrics including lower power consumption, higher speed, and better reliability. The SI8621BT-IS2 specifically addresses applications needing robust isolation with minimal signal distortion and high noise immunity.

Digital Isolators Replacement Considerations

Direct substitutes within the same family include SI8621BT-IS and SI8621ET-IS, which share similar electrical characteristics and packaging.