SI88622BD-ISR

Overview

The SI88622BD-ISR is a general-purpose digital isolator manufactured by Skyworks Solutions Inc. It features two unidirectional channels with a data rate of 100 Mb/s and an insulation voltage of 5000 Vrms. The device utilizes capacitive coupling technology and operates within a supply voltage range of 3 V to 5.5 V. Key electrical parameters include a propagation delay of 18 ns, rise/fall times of 2.5 ns, and a minimum common-mode transient immunity (CMTI) of 40 kV/µs. It supports a pulse width of 10 ns with a maximum pulse width distortion of 7 ns. The component is housed in a 20-SOIC package and functions across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates two unidirectional signal channels for reliable data transmission across isolation barriers.
• Employs CMOS-based capacitive coupling technology to ensure high reliability and low power consumption compared to optical solutions.
• Includes a shutdown function to minimize power usage during inactive periods.
• Provides high common-mode transient immunity to maintain signal integrity in noisy industrial environments.

Applications

• Industrial process control systems requiring robust signal isolation
• Programmable logic controller (PLC) input/output modules
• Servo motor control interfaces
• General-purpose isolated communication links

Procurement Notes

Verify the specific ordering suffix to confirm package dimensions and tape/reel specifications. Ensure compatibility with the required operating temperature range and supply voltage levels. Confirm that the 20-SOIC footprint matches the design layout. Check for any recent product change notifications or lifecycle status updates from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a two-channel unidirectional isolator with 5000 Vrms safety ratings is required. Consider the 100 Mb/s data rate and 40 kV/µs CMTI for high-noise applications. Evaluate the 20-SOIC package size against board space constraints. Compare power dissipation characteristics against thermal management capabilities in the target enclosure.

Part Context

This part belongs to the Si88x2x series of digital isolators from Skyworks Solutions. The series focuses on providing cost-effective and compact alternatives to traditional optocouplers. These devices are designed for industrial isolation solutions, offering enhanced performance in terms of speed, size, and energy efficiency while maintaining high isolation voltages suitable for demanding electronic environments.

Replacement Considerations

SI88622BC-ISR is listed as a substitute part number by the manufacturer.