Skyworks Solutions Inc. SI86S610BC-AS

Overview

SI86S610BC-AS from Skyworks Solutions is a single-channel, high-speed digital isolator with reinforced 6000 VRMS isolation, 150 Mbps data rate, and AEC-Q100 qualification for automotive use. It features Schmitt-trigger + CMOS inputs, selectable fail-safe output (default low), and operates across 2.25–5.5 V supply rails. It serves as a robust signal-level isolator in battery management systems and onboard chargers where galvanic separation and noise immunity are critical.

For engineers reviewing the SI86S610BC-AS datasheet, SI86S610BC-AS pinout, SI86S610BC-AS application, or SI86S610BC-AS equivalent, this page delivers verified technical context, precise timing specs, safety-certified isolation parameters, and real-world automotive/industrial deployment guidance - all grounded in Skyworks' official 206552B datasheet (August 2023).

Technical Context

The SI86S610BC-AS implements RF-based on/off keying across a semiconductor isolation barrier - not optical coupling - enabling no-startup-initialization operation and superior CMTI (≥100 kV/µs). Its architecture includes independent UVLO and reset monitors per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.

It supports fail-safe default-low output behavior (confirmed by "C" suffix per Skyworks ordering guide), uses internal 100 kΩ pulldown during startup (tSTART ≤ 300 µs), and delivers precise timing: 5–14 ns propagation delay (VDD = 2.5–5.0 V), ≤4.5 ns pulse width distortion, and ≤3 ns channel-to-channel skew.

Key Specifications

Pinout & Package

SI86S610BC-AS is housed in an SSO-8 (wide-body SOIC-8) package with 8.0 mm creepage/clearance, optimized for 6000 VRMS isolation. Pin functions are validated per Figure 1 and Table 1 of Skyworks datasheet 206552B.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM110N0BRZ-RL7 and ISO6710DR, SI86S610BC-AS uniquely combines 6000 VRMS reinforced isolation, AEC-Q100 Grade 1, 150 Mbps speed, and default-low fail-safe - making it the only option qualified for high-voltage, high-reliability automotive powertrain subsystems requiring both performance and functional safety compliance.

Availability

SI86S610BC-AS is available at Aetrix Electronics and suitable for battery management systems, onboard chargers, and traction inverter control requiring stable component supply across automotive production lifecycles.

Supply support for SI86S610BC-AS 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.

The Si86S61x family targets high-reliability automotive and industrial isolation needs - designed specifically for EV power electronics, medical equipment, and factory automation where reinforced safety certification and sub-10 ns timing are mandatory.

FAQ

What does the "C" in SI86S610BC-AS signify?

The "C" suffix in SI86S610BC-AS explicitly denotes the default-low fail-safe output configuration. When VDD1 falls below UVLO– (≤2.12 V), the B1 output is actively pulled low - a critical safety feature for automotive systems like battery disconnect controls. This ordering option is confirmed in Skyworks' datasheet Table 2 and ordering guide.

Does SI86S610BC-AS require external start-up initialization?

No, SI86S610BC-AS requires no start-up initialization due to its RF modulation architecture. After power application, outputs stabilize within ≤300 µs (tSTART), with a 100 kΩ pulldown holding B1 low until VDD1 exceeds UVLO+. This zero-initialization behavior is intrinsic to the Si86S61x series and eliminates firmware boot dependencies.

What safety certifications apply to SI86S610BC-AS?

SI86S610BC-AS carries pending UL 1577 (6000 VRMS), VDE 60747-17 (reinforced), CSA 62368-1/60601-1, and CQC GB4943.1 certifications. Its SSO-8 package achieves 8.0 mm creepage/clearance and 2121 Vpeak transient isolation - validated for medical (2 MOPP) and automotive high-voltage systems per datasheet Tables 9–12.

Can SI86S610BC-AS operate with different supply voltages on each side?

Yes, SI86S610BC-AS supports independent 2.25–5.5 V supplies on VDD1 and VDD2 - enabling direct interface between 3.3 V MCUs and 5 V analog circuits without level shifters. Supply decoupling requires 0.1 µF + 10 µF capacitors per side, placed adjacent to VDD/GND pins as specified in Section 3.2.1.

How does SI86S610BC-AS handle common-mode transients in EV inverters?

SI86S610BC-AS delivers ≥100 kV/µs common-mode transient immunity (CMTI), measured per Figure 8 of the datasheet. This enables reliable operation in SiC/GaN traction inverters where fast dV/dt edges (≥50 kV/µs) cross the isolation barrier - preventing data corruption without additional RC snubbers or guard traces.