SI8655BA-AS1R

Digital Isolators Overview

The SI8655BA-AS1R is a five-channel unidirectional digital isolator from Skyworks Solutions, utilizing capacitive coupling technology. It operates within a supply voltage range of 2.375 V to 5.5 V and supports data rates up to 150 Mb/s. The device features an insulation voltage of 1000 Vrms and a propagation delay of 8 ns. Rise and fall times are typically 4 ns, with a pulse width of 5 ns. It is housed in a SOIC-Narrow-16 package and includes a shutdown function. The component is designed for surface mount installation and functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Five-channel unidirectional signal isolation using capacitive coupling
• Integrated shutdown control for power management
• High common-mode transient immunity capability
• Automotive-grade reliability certification

Digital Isolators Applications

• Automotive battery management systems
• Industrial motor control interfaces
• Power supply communication channels
• Inverter gate drive isolation

Digital Isolators Procurement Notes

Verify the specific suffix AS1R indicates reel packaging configuration distinct from tube variants. Confirm AEC-Q100 qualification status matches project requirements. Ensure ESD protection handling protocols are followed during assembly due to moisture sensitivity classification. Cross-reference pinout compatibility with existing PCB layouts before integration.

Digital Isolators Selection Notes

Select this component when five isolated channels are required for unidirectional data transmission. The 1000 Vrms isolation rating suits applications requiring robust galvanic separation between low-voltage logic and high-voltage power stages. Consider the 150 Mb/s speed limit for bandwidth constraints. The shutdown feature allows for active power reduction during idle periods.

Digital Isolators Part Context

This part belongs to the Si865x family of digital isolators, which are characterized by low power consumption and high reliability. The series is widely adopted in automotive and industrial sectors where safety standards demand strict isolation barriers. The BA variant denotes specific performance characteristics within the broader product line.

Digital Isolators Replacement Considerations

• SI8655BA-AS
• SI8655BA-B-IS1R

Digital Isolators FAQ

Does the SI8655BA-AS1R support bidirectional communication?

No, the device is configured for unidirectional signal transmission only, with zero reverse channels.

What is the maximum operating supply voltage?

The maximum supply voltage is 5.5 V, while the minimum is 2.375 V.