New family delivers complete signal and power isolation with industry-leading load regulation and high data rates
Skyworks announced the Si86Px family of digital isolators with integrated power, a compact solution that combines high-performance digital isolation with an integrated isolated dc-dc converter and matched miniature transformer. Designed for industrial and automotive electronics, the Si86Px simplifies isolated system design while reducing PCB area, BOM count, and overall design complexity.
The Si86Px addresses a critical challenge for system designers: generating high-quality isolated power in applications where board space is limited or where no power source is readily available on the isolated side. By integrating signal and power isolation into a single package, the Si86Px can help reduce time to market while providing a well-regulated power source for sensitive components such as ADCs and sensors.
Integrated isolation for power and data
The Si86Px family integrates Skyworks’ digital isolator technology with an isolated dc-dc converter capable of delivering up to 0.5 W of isolated power. This approach eliminates the need for bulky external transformers and power modules, enabling more compact and cost-effective system designs.
Key benefits include:
- Industry-leading load regulation (0.1% typical) for powering sensitive ADCs and sensors
- High data rates up to 150 Mbps, supporting fast industrial communication protocols such as SPI and RS-485
- High common-mode transient immunity (100 kV/µs) to ensure reliable data integrity in noisy environments such as motor drives
- Compact WB SOIC-16/20 package for simplified manufacturing and space savings
Built for demanding industrial and automotive applications
- Designed for harsh environments – operates over a wide –40 °C to +125 °C temperature range and provides 3.75 kVrms isolation, making it well suited for industrial automation, factory equipment, and automotive applications
- Simplified system design – integrated power architecture and low-EMI design help designers meet system-level performance and compliance requirements with fewer external components
- Significant tighter load regulation – delivers 0.1% typical load regulation, compared to 1% typical for comparable integrated power isolators, providing up to 10× better regulation for powering sensitive analog components
- Higher data-rate capability – supports up to 150 Mbps, exceeding devices rated at 100 Mbps or below for faster and more responsive system control
- Robust data integrity – features 100 kV/µs common‑mode transient immunity (CMTI) for reliable operation in harsh electrical noise