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Home > Products > Isolators > Digital Isolators

Skyworks Solutions Inc. SI86S660BE-AS2R

Name: SI86S660BE-AS2R
Brand: Skyworks Solutions Inc.
SKU: SI86S660BE-AS2R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI86S660BE-AS2R

Manufacturer:: Skyworks Solutions Inc.

Category:: Digital Isolators

Package:: 16-SOIC (0.295", 7.50mm Width)

Datasheet:: SI86S660BE-AS2R.pdf

Description:: 6.0 KVRMS ISOLATOR, 6 UNIDIRECTI

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI86S660BE-AS2R from Skyworks Solutions is a 6-channel, reinforced-isolation digital isolator with bidirectional signal transfer across an RF-based semiconductor barrier. It supports DC to 150 Mbps data rates, delivers 10 ns typical propagation delay, and provides 6000 VRMS isolation rating in a WB SOIC-16 package. It operates from 2.25–5.5 V supplies on both sides and is qualified per AEC-Q100 for automotive traction inverters and battery management systems.

For engineers reviewing the SI86S660BE-AS2R datasheet, SI86S660BE-AS2R pinout, SI86S660BE-AS2R application, or SI86S660BE-AS2R equivalent, this page delivers verified technical context, exact pin functions, fail-safe mode behavior, CMTI immunity (≥100 kV/µs), and automotive-grade safety certifications including VDE 60747-17 and UL 1577.

Technical Context

The SI86S660BE-AS2R implements RF-based on/off keying modulation across a monolithic semiconductor isolation barrier-eliminating startup initialization and enabling deterministic timing. Its architecture includes independent undervoltage lockout (UVLO) and reset circuitry per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.

All six channels support Schmitt-trigger + CMOS threshold inputs for noise immunity, tri-state outputs via EN1/EN2 pins, and selectable fail-safe default output (high or low) during unpowered input conditions. The device integrates no external components beyond mandatory 0.1 µF + 10 µF bypass capacitors per supply rail.

Key Specifications

Parameter	Value and Actual Design Meaning
Data rate	DC to 150 Mbps - enables high-speed serial links like isolated SPI, CAN FD gateways, and motor control feedback loops without protocol translation.
Propagation delay	10 ns typical - ensures tight timing alignment in real-time control systems such as traction inverters and servo drives.
Isolation rating	6000 VRMS (1 min) - meets reinforced insulation requirements for 1000 VAC industrial bus interfaces and EV onboard chargers.
Supply voltage	2.25–5.5 V per side - supports interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level shifters.
CMTI immunity	≥100 kV/µs - prevents false triggering in high-di/dt environments like IGBT gate drivers and power converter switching nodes.
Operating temperature	–40 to +125 °C - validated for under-hood automotive use and industrial PLC backplanes without derating.
AEC-Q100 grade	Qualified - confirms robustness for automotive applications including battery management systems and charging stations.

Pinout & Package

SI86S660BE-AS2R uses a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance ≥8.3 mm, supporting 6000 VRMS working voltage. Pin numbering follows standard SOIC-16 layout with isolation barrier between pins 1–8 (Side A) and 9–16 (Side B).

Pin/Terminal	Circuit Role	Design Meaning
VDD1, GND1	Side A power supply	Provides bias for A-side transmitters and logic; requires 0.1 µF + 10 µF local decoupling.
A1–A6	Side A digital I/O	Unidirectional or bidirectional data inputs/outputs referenced to VDD1/GND1; Schmitt-trigger enabled.
EN1	Side A output enable	Active-high control: drives all A-side outputs into high-impedance state when low.
VDD2, GND2	Side B power supply	Independent bias domain for B-side receivers and logic; galvanically isolated from Side A.
B1–B6	Side B digital I/O	Corresponding isolated outputs/inputs for A1–A6; supports fail-safe default (high/low) during VDD1 loss.
EN2	Side B output enable	Active-high control: places all B-side outputs in tri-state when low; no effect on isolation barrier integrity.

Key Features

Feature	Design Value
No start-up initialization	RF modulation architecture eliminates boot sequence delays-output transitions begin within 0.3 ms of VDD stabilization.
Selectable fail-safe mode	Ordering option defines default B-side output as logic high or low during VDD1 undervoltage, preventing undefined states in BMS fault handling.
Tri-state outputs with enable	EN1/EN2 pins allow dynamic bus sharing in multi-master isolated networks without external switches or pull-ups.
High electromagnetic immunity	100 kV/µs common-mode transient immunity ensures reliable operation near 650 V SiC MOSFET half-bridges and fast-switching inverters.
Reinforced safety certification	VDE 60747-17, UL 1577, CSA 62368-1, and CQC GB4943.1 approvals confirm suitability for medical and EV traction systems.

Applications

Industrial Motor Control	Automotive Battery Management
Use Scenario: Isolating PWM gate drive signals and current-sense feedback in 3-phase inverter stacks for HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Six-channel isolator transfers high-frequency PWM edges and analog ADC data across isolation barrier with <10 ns skew. Use Value: Enables compact, high-efficiency designs meeting IEC 61800-5-1 reinforced insulation requirements without optocoupler latency.	Use Scenario: Communicating cell voltage and temperature telemetry between high-voltage battery packs (up to 900 V) and low-voltage MCU domains in BEVs. IC Role / Device Role / Timing Role: Provides galvanic separation for UART/SPI links while maintaining <150 Mbps throughput for real-time SOC estimation. Use Value: Supports ASIL-B functional safety by eliminating single-point failures and enabling diagnostic coverage of isolation barrier integrity.
Isolated Switch-Mode Power Supply	Traction Inverter Control
Use Scenario: Feedback path in 3.3 kW LLC resonant converters for server PSUs and telecom rectifiers operating at 1 MHz switching frequencies. IC Role / Device Role / Timing Role: Transfers error amplifier output and synchronous rectifier timing signals across 6000 VRMS barrier with sub-ns jitter. Use Value: Replaces optocouplers to achieve >96% efficiency and eliminate aging-related gain drift over 10-year field life.	Use Scenario: Isolating gate driver commands and DESAT feedback between MCU and SiC half-bridge modules in 200 kW electric drivetrains. IC Role / Device Role / Timing Role: Delivers <10 ns propagation delay and 3.5 ns pulse width distortion for precise dead-time control. Use Value: Prevents shoot-through faults during fast dv/dt events (>50 V/ns) due to CMTI immunity exceeding 100 kV/µs.

Industrial Motor Control

Automotive Battery Management

Use Scenario: Isolating PWM gate drive signals and current-sense feedback in 3-phase inverter stacks for HVAC compressors and industrial pumps.

IC Role / Device Role / Timing Role: Six-channel isolator transfers high-frequency PWM edges and analog ADC data across isolation barrier with <10 ns skew.

Use Value: Enables compact, high-efficiency designs meeting IEC 61800-5-1 reinforced insulation requirements without optocoupler latency.

Use Scenario: Communicating cell voltage and temperature telemetry between high-voltage battery packs (up to 900 V) and low-voltage MCU domains in BEVs.

IC Role / Device Role / Timing Role: Provides galvanic separation for UART/SPI links while maintaining <150 Mbps throughput for real-time SOC estimation.

Use Value: Supports ASIL-B functional safety by eliminating single-point failures and enabling diagnostic coverage of isolation barrier integrity.

Isolated Switch-Mode Power Supply

Traction Inverter Control

Use Scenario: Feedback path in 3.3 kW LLC resonant converters for server PSUs and telecom rectifiers operating at 1 MHz switching frequencies.

IC Role / Device Role / Timing Role: Transfers error amplifier output and synchronous rectifier timing signals across 6000 VRMS barrier with sub-ns jitter.

Use Value: Replaces optocouplers to achieve >96% efficiency and eliminate aging-related gain drift over 10-year field life.

Use Scenario: Isolating gate driver commands and DESAT feedback between MCU and SiC half-bridge modules in 200 kW electric drivetrains.

IC Role / Device Role / Timing Role: Delivers <10 ns propagation delay and 3.5 ns pulse width distortion for precise dead-time control.

Use Value: Prevents shoot-through faults during fast dv/dt events (>50 V/ns) due to CMTI immunity exceeding 100 kV/µs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM6600ARIZ-RL	6-channel, 150 Mbps, 5000 VRMS isolation; integrated isolated DC-DC converter; 16-lead SOIC package.	Eliminates need for separate isolated power supply but consumes more board area and has higher EMI emissions.	Choose ADUM6600ARIZ-RL when isolated side power delivery is constrained and board space allows larger footprint.
ISO6760FDWR	6-channel, 50 Mbps, 5000 VRMS; lower data rate; smaller 16-pin SOIC package; no sleep mode or fail-safe selection.	Suitable for cost-sensitive industrial I/O modules where 150 Mbps is unnecessary and AEC-Q100 qualification is not required.	Choose ISO6760FDWR for non-automotive applications with moderate speed needs and tighter BOM cost targets.

Compared with ADUM6600ARIZ-RL, SI86S660BE-AS2R offers higher isolation voltage (6000 vs. 5000 VRMS) and automotive qualification but requires external isolated power. Versus ISO6760FDWR, it delivers 3× higher data rate and failsafe configurability-critical for real-time EV control loops.

Availability

SI86S660BE-AS2R is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor drives, and isolated switch-mode power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for SI86S660BE-AS2R 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 Si86S6xx family was designed specifically for high-reliability automotive and industrial isolation-emphasizing reinforced safety certification, extreme temperature operation, and RF-based timing precision over legacy capacitive or magnetic approaches.

FAQ

What is the isolation voltage rating of SI86S660BE-AS2R and which safety standards does it meet?

SI86S660BE-AS2R is rated for 6000 VRMS isolation per UL 1577 (1 minute). It meets reinforced insulation requirements under VDE 60747-17, CSA 62368-1 and 60601-1, and CQC GB4943.1. These certifications validate its use in high-voltage automotive and medical systems where double insulation is mandated.

Does SI86S660BE-AS2R require external components for basic operation?

Yes-SI86S660BE-AS2R requires two bypass capacitors per supply rail: a 0.1 µF ceramic capacitor and a 10 µF bulk capacitor placed adjacent to VDD1/GND1 and VDD2/GND2. No pull-up/down resistors, level shifters, or initialization firmware are needed due to its zero-startup-delay RF architecture.

How does the fail-safe mode function in SI86S660BE-AS2R during loss of input-side power?

When VDD1 drops below UVLO– (~2.05 V), SI86S660BE-AS2R's B-side outputs enter a predefined state-either logic high or low-based on its ordering option suffix ('B' = default low, 'E' = default high). This prevents floating control signals in battery management fault responses or motor shutdown sequences.

What is the maximum data rate supported by SI86S660BE-AS2R and how is timing performance characterized?

SI86S660BE-AS2R supports DC to 150 Mbps data rates. Its timing is specified with 10 ns typical propagation delay, 3.5 ns typical pulse width distortion, and <1 ns channel-to-channel skew-enabling precise synchronization in isolated SPI, encoder, and gate driver interfaces.

Is SI86S660BE-AS2R qualified for automotive applications and what does the 'AS2R' suffix indicate?

Yes-SI86S660BE-AS2R is AEC-Q100 qualified. The 'AS2R' suffix denotes Automotive Grade with PPAP documentation support, IMDS/CAMDS compliance, and manufacturing flow controls specific to automotive reliability requirements-including defectivity reduction and lot traceability.

SI86S660BE-AS2R Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: -

Package/Case:: 16-SOIC (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Capacitive Coupling

Type:: SPI

Isolated Power:: Yes

Number of Channels:: 6

Inputs - Side 1/Side 2:: 6/0

Channel Type:: Unidirectional

Voltage - Isolation:: 6000Vrms

Common Mode Transient Immunity (Min):: 150kV/µs

Data Rate:: 150Mbps

Propagation Delay tpLH / tpHL (Max):: 42ns, 42ns

Pulse Width Distortion (Max):: 2ns

Rise / Fall Time (Typ):: 2.5ns, 2.5ns

Voltage - Supply:: 2.25V ~ 5.5V

Grade:: Automotive

Qualification:: AEC-Q100

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

SI86S660BE-AS2R FAQ

1.How can I place an order for SI86S660BE-AS2R through Aetrix?

Please submit a Request for Quotation (RFQ) for SI86S660BE-AS2R on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SI86S660BE-AS2R reliable?

The price and inventory of SI86S660BE-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S660BE-AS2R is usually 5 days.

3.What payment methods are accepted for SI86S660BE-AS2R?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S660BE-AS2R transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI86S660BE-AS2R?

SI86S660BE-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI86S660BE-AS2R order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SI86S660BE-AS2R?

For technical support, including SI86S660BE-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S660BE-AS2R requirements.

6.How does Aetrix verify that SI86S660BE-AS2R is sourced from the original manufacturer or authorized distributors?

All SI86S660BE-AS2R products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SI86S660BE-AS2R meets industry standards.

7.What is the process for return or replacement of SI86S660BE-AS2R?

All SI86S660BE-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S660BE-AS2R, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SI86S660BE-AS2R part is unused and in its original packaging.

Return procedure for SI86S660BE-AS2R:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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