Skyworks Solutions Inc. SI86S662EE-IS2R

Overview

SI86S662EE-IS2R from Skyworks Solutions is a 6-channel, reinforced digital isolator with 6000 VRMS isolation rating, 150 Mbps data rate, and dual 2.25–5.5 V supply operation across isolated sides. It features Schmitt-trigger + CMOS input thresholds, tri-state outputs with enable, and selectable fail-safe default-high/low output mode. It is used in battery management systems and traction inverters where high CMTI (>100 kV/µs), AEC-Q100 qualification, and wide –40 to 125 °C operation are required.

For engineers reviewing the SI86S662EE-IS2R datasheet, SI86S662EE-IS2R pinout, SI86S662EE-IS2R application, or SI86S662EE-IS2R equivalent, key selection criteria include reinforced IEC 60747-17 certification, WB SOIC-16 package with 8.3 mm creepage, sleep-mode support via SMb pin, and compatibility with isolated SPI/QSPI and bidirectional bus architectures.

Technical Context

The SI86S662EE-IS2R implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and enabling deterministic timing without PLL lock time. Its architecture delivers 10 ns typical propagation delay and 3.5 ns pulse width distortion at DC–150 Mbps.

It supports independent undervoltage lockout (UVLO) and reset on both sides (VDD1/VDD2), with RSTB– threshold at ~1.7 V and UVLO– at 1.98 V. The device includes integrated 100 kΩ weak pulldown on unpowered outputs and configurable fail-safe behavior during supply loss.

Key Specifications

Pinout & Package

The SI86S662EE-IS2R is housed in a wide-body SOIC-16 (WB SOIC-16) package with 8.3 mm creepage and 10.3 mm clearance, supporting 6000 VRMS reinforced isolation. Pin numbering follows standard SOIC-16 layout with isolation barrier between Side A (pins 1–8) and Side B (pins 9–16).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital isolator applications.

Compared with ADUM6601ARIZ-RL and ISO6760FDWR, the SI86S662EE-IS2R delivers higher data rate (150 vs. 50/25 Mbps), reinforced 6000 VRMS isolation, AEC-Q100 Grade 1 qualification, and active sleep mode - making it optimal for next-generation EV powertrain and high-fidelity industrial control designs.

Availability

SI86S662EE-IS2R is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply with automotive-grade traceability and long-term lifecycle support.

Supply support for SI86S662EE-IS2R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies for automotive, industrial, and communications markets.

The SI86S6xx family was designed to replace optocouplers in high-reliability, high-speed isolation applications - delivering superior timing, CMTI, and safety certification while reducing system BOM count and PCB area.

FAQ

What is the isolation rating and safety certification status of the SI86S662EE-IS2R?

The SI86S662EE-IS2R is rated for 6000 VRMS isolation per UL 1577 for 1 minute and carries reinforced insulation certification per IEC 60747-17, VDE 62368-1, CSA 62368-1, and CQC GB4943.1. These certifications are fully documented in Skyworks' official safety reports and apply directly to the SI86S662EE-IS2R in its WB SOIC-16 package.

Does the SI86S662EE-IS2R support fail-safe output configuration, and how is it selected?

Yes, the SI86S662EE-IS2R offers factory-selectable fail-safe mode: default-high or default-low output state when VDD1 is unpowered but VDD2 remains active. This is determined by ordering code suffix (e.g., "E" = default-low, "H" = default-high); the SI86S662EE-IS2R uses the "E" variant and therefore defaults to low output under VDD1 brownout.

What is the function of the SMb pin on the SI86S662EE-IS2R, and how does it affect power consumption?

The SMb pin on the SI86S662EE-IS2R is an active-low sleep mode control that reduces total quiescent current to 750 µA per side. When asserted low, it disables all transmitter/receiver circuits except one dedicated monitoring channel, enabling fast wake-up (<1 µs) upon SMb release. This feature is unique to the SMx subfamily and confirmed for SI86S662EE-IS2R.

Can the SI86S662EE-IS2R be used in SPI or QSPI isolation applications?

Yes - the SI86S662EE-IS2R supports SPI and QSPI isolation through its six independent unidirectional channels. While not a dedicated SPI isolator like the Si86SSx series, its pinout and timing allow implementation of isolated MOSI/MISO/SCLK/CS paths. Direction control is fixed per channel, so external logic may be needed for full-duplex QSPI half-duplex signaling.

What package type and creepage distance does the SI86S662EE-IS2R use?

The SI86S662EE-IS2R uses a wide-body SOIC-16 (WB SOIC-16) package with 8.3 mm creepage and 10.3 mm clearance. This mechanical layout satisfies reinforced insulation requirements for 6000 VRMS working voltage and is explicitly validated in Skyworks' IEC 60747-17 test reports for the SI86S662EE-IS2R part number.