SI88622ED-ASR

Overview

The Si88622ED-ASR is a dual-channel digital isolator with an integrated isolated DC-DC converter manufactured by Skyworks Solutions. It provides two unidirectional digital isolation channels and generates regulated output voltages of 3.3 V or 5.0 V, supporting up to 5 W peak power with external components. The device features data rates up to 100 Mbps and a maximum propagation delay of 23 ns. It includes user-adjustable switching frequency, soft-start functionality, and shutdown options. The component operates within a temperature range of –40 °C to +125 °C and offers isolation ratings up to 5000 V RMS.

Feature Summary

• Integrates high-speed digital isolation with an on-chip isolated DC-DC converter for combined signal and power transmission.
• Features fully-integrated secondary sensing feedback controlled converter with dithering for low electromagnetic interference emissions.
• Supports programmable switching frequency and externally triggered shutdown for enhanced system control and safety.
• Provides high transient immunity and robust performance across wide temperature ranges suitable for automotive applications.

Applications

• Industrial automation systems
• Hybrid electric and electric vehicles
• Isolated power supplies
• Motor control circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pinout configuration and feature set. Ensure compatibility with required isolation voltage standards such as UL, CSA, and VDE certifications before integration into safety-critical designs.

Selection Notes

Select this component when both signal isolation and isolated power generation are required in a single package. Consider the external transformer requirements and verify that the primary side input voltage aligns with the high-voltage configuration capabilities of the Si886xx family.

Part Context

This part belongs to the Si88x2x family of dual digital isolators with integrated DC-DC converters. It shares architectural similarities with the Si8822x, Si8832x, and Si8842x models but is specifically designed for high-voltage input configurations requiring external power switches.

Replacement Considerations

Direct replacements include other members of the Si88x2x family such as the Si88422ED-ASR, provided the input voltage requirements match the high-voltage configuration needs of the application design.