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Home > Products > Isolators > Digital Isolators

Skyworks Solutions Inc. SI86S660BB-IUR

Name: SI86S660BB-IUR
Brand: Skyworks Solutions Inc.
SKU: SI86S660BB-IUR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI86S660BB-IUR

Manufacturer:: Skyworks Solutions Inc.

Category:: Digital Isolators

Package:: 16-SSOP (0.154", 3.90mm Width)

Datasheet:: SI86S660BB-IUR.pdf

Description:: 2.5 KVRMS ISOLATOR, 6 UNIDIRECTI

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI86S660BB-IUR 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. It features Schmitt-trigger + CMOS input thresholds, tri-state outputs with enable, and selectable fail-safe default-high or default-low output mode during power loss. It is used in isolated motor control gate drivers and battery management system signal interfaces.

For engineers reviewing the SI86S660BB-IUR datasheet, SI86S660BB-IUR pinout, SI86S660BB-IUR application, or SI86S660BB-IUR equivalent, key selection criteria include reinforced IEC 60747-17 certification, 10 ns typical propagation delay, 3.5 ns pulse width distortion, transient immunity ≥100 kV/µs, and AEC-Q100 qualification for automotive traction inverter designs.

Technical Context

The SI86S660BB-IUR implements RF-based on/off keying across a semiconductor isolation barrier-no start-up initialization required. Its architecture delivers high electromagnetic immunity and eliminates magnetic field sensitivity inherent in transformer-based isolators.

All six channels support bidirectional signal transfer across the isolation barrier with independent side-A and side-B undervoltage lockout (UVLO) monitoring, reset detection at ~1.7 V, and configurable fail-safe output states. The device supports sleep mode via external SMb control and includes tri-state output enable pins (EN1/EN2) per side.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	DC to 150 Mbps - supports high-speed SPI, isolated ADC/DAC interfaces, and real-time motor control feedback loops.
Isolation Rating	6000 VRMS for 1 minute - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for industrial and automotive safety-critical systems.
Propagation Delay	10 ns typical - enables precise timing alignment in fast-switching power converters and gate driver circuits.
Pulse Width Distortion	3.5 ns typical - ensures minimal duty cycle error in PWM signal isolation for inverter phase control.
Supply Voltage Range	2.25 V to 5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level-shifting.
Transient Immunity	≥100 kV/µs - provides robust operation in high-noise motor drive and power inverter environments.
Operating Temperature	–40 °C to +125 °C - qualified for under-hood automotive applications including onboard chargers and traction inverters.

Pinout & Package

SI86S660BB-IUR is housed in a WB SOIC-16 package (wide-body, 10.3 mm creepage/clearance), supporting 6000 VRMS isolation. Pin assignments are validated per Figure 4 and Table 1 of Skyworks datasheet 206553B.

Pin/Terminal	Circuit Role	Design Meaning
VDD1 / VDD2	Side A / Side B supply	Independent 2.25–5.5 V power domains enabling galvanic separation of logic and power stages.
GND1 / GND2	Side A / Side B ground	Physically isolated reference planes preventing ground loop currents in high-voltage systems.
A1–A6	Side A digital I/O	Input/output channels on controller side; compatible with CMOS/Schmitt-trigger logic levels.
B1–B6	Side B digital I/O	Corresponding isolated output/input channels on power stage or sensor side.
EN1 / EN2	Active-high output enable	Tri-states all outputs on respective side-enables shared bus architectures and low-power sequencing.

Key Features

Feature	Design Value
No start-up initialization	RF modulation architecture eliminates boot delay-output follows input immediately after UVLO exit (~0.3 ms).
Selectable fail-safe mode	Ordering option defines default output state (high or low) during unpowered input side-critical for safe shutdown in BMS.
Reinforced IEC 60747-17 rating	Validated barrier design meets stringent reinforced insulation requirements for medical and EV traction systems.
Schmitt-trigger + CMOS inputs	Combined threshold improves noise margin in electrically noisy environments like motor drives and inverters.
AEC-Q100 qualified	Automotive-grade qualification across temperature, ESD, and reliability tests-supports PPAP documentation for OEM programs.

Applications

Motor Control Gate Driver Interface	Isolated Battery Management System
Use Scenario: Isolating PWM signals between MCU and high-side/low-side IGBT gate drivers in 3-phase inverters. IC Role / Device Role / Timing Role: Six-channel digital isolator transmitting complementary PWM pairs with matched propagation delay and minimal skew. Use Value: 10 ns typical propagation delay and 3.5 ns pulse width distortion preserve dead-time integrity and prevent shoot-through faults.	Use Scenario: Signal isolation between cell monitor ICs and central BMS controller across 400–800 V battery packs. IC Role / Device Role / Timing Role: Reinforced isolator carrying voltage measurement data, fault flags, and balancing commands across high-potential barriers. Use Value: 6000 VRMS isolation and IEC 60747-17 certification ensure compliance with ISO 26262 ASIL-D functional safety requirements.
Onboard Charger Communication	Traction Inverter Current Sensing
Use Scenario: Isolating CAN or UART communication lines between OBC controller and AC/DC power stage in EV charging systems. IC Role / Device Role / Timing Role: Bidirectional digital isolator enabling reliable command/response exchange while blocking common-mode transients. Use Value: 100 kV/µs transient immunity prevents communication corruption during switching events in SiC-based OBC topologies.	Use Scenario: Isolating analog-to-digital converter outputs from shunt-based current sensors in high-power traction inverters. IC Role / Device Role / Timing Role: High-speed isolator interfacing isolated sigma-delta modulators (e.g., AMC130x) with DSP controllers. Use Value: 150 Mbps data rate supports oversampled current data transmission at >20 MSPS, enabling precise torque control.

Motor Control Gate Driver Interface

Isolated Battery Management System

Use Scenario: Isolating PWM signals between MCU and high-side/low-side IGBT gate drivers in 3-phase inverters.

IC Role / Device Role / Timing Role: Six-channel digital isolator transmitting complementary PWM pairs with matched propagation delay and minimal skew.

Use Value: 10 ns typical propagation delay and 3.5 ns pulse width distortion preserve dead-time integrity and prevent shoot-through faults.

Use Scenario: Signal isolation between cell monitor ICs and central BMS controller across 400–800 V battery packs.

IC Role / Device Role / Timing Role: Reinforced isolator carrying voltage measurement data, fault flags, and balancing commands across high-potential barriers.

Use Value: 6000 VRMS isolation and IEC 60747-17 certification ensure compliance with ISO 26262 ASIL-D functional safety requirements.

Onboard Charger Communication

Traction Inverter Current Sensing

Use Scenario: Isolating CAN or UART communication lines between OBC controller and AC/DC power stage in EV charging systems.

IC Role / Device Role / Timing Role: Bidirectional digital isolator enabling reliable command/response exchange while blocking common-mode transients.

Use Value: 100 kV/µs transient immunity prevents communication corruption during switching events in SiC-based OBC topologies.

Use Scenario: Isolating analog-to-digital converter outputs from shunt-based current sensors in high-power traction inverters.

IC Role / Device Role / Timing Role: High-speed isolator interfacing isolated sigma-delta modulators (e.g., AMC130x) with DSP controllers.

Use Value: 150 Mbps data rate supports oversampled current data transmission at >20 MSPS, enabling precise torque control.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM6601ARIZ-RL	6-channel, 5000 VRMS, 25 Mbps max, integrated isolated DC-DC converter	Lower speed; suitable where isolated power is needed but not high-bandwidth signaling	Choose ADUM6601ARIZ-RL when isolated side power delivery is required and data rate ≤25 Mbps suffices.
ISO6760QDWR	6-channel, 5000 VRMS, 50 Mbps max, CMTI = 50 kV/µs, no AEC-Q100	Limited noise immunity and no automotive qualification; lower cost for non-automotive industrial use	Choose ISO6760QDWR for cost-sensitive industrial automation where 50 Mbps and 50 kV/µs CMTI meet requirements.

Compared with ADUM6601ARIZ-RL and ISO6760QDWR, SI86S660BB-IUR delivers higher speed (150 Mbps vs. 25/50 Mbps), superior transient immunity (≥100 kV/µs), and AEC-Q100 qualification-making it optimal for automotive traction inverters and high-fidelity motor control.

Availability

SI86S660BB-IUR is available at Aetrix Electronics and suitable for industrial automation systems, battery management systems, and traction inverters requiring stable component supply across extended product lifecycles.

Supply support for SI86S660BB-IUR 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 is designed for high-reliability, high-speed signal isolation in automotive, industrial, and medical systems-emphasizing reinforced safety certification, low propagation delay, and robust noise immunity.

FAQ

What is the isolation rating and safety certification status of SI86S660BB-IUR?

SI86S660BB-IUR provides 6000 VRMS isolation for 1 minute per UL 1577 and is certified to IEC 60747-17 (reinforced insulation), CSA 62368-1/60601-1, and CQC GB4943.1. These certifications validate its use in safety-critical automotive and medical applications where reinforced barrier integrity is mandatory. SI86S660BB-IUR meets all required test conditions for dielectric withstand and partial discharge.

Does SI86S660BB-IUR require external startup configuration or initialization firmware?

No, SI86S660BB-IUR requires no start-up initialization. Its RF-based modulation architecture begins operating immediately after VDD exits undervoltage lockout (~0.3 ms). Outputs follow inputs without software or hardware setup-ideal for fail-safe systems like motor control where deterministic behavior at power-on is essential. SI86S660BB-IUR maintains this behavior across –40 °C to +125 °C.

How does the fail-safe output mode work on SI86S660BB-IUR?

SI86S660BB-IUR offers ordering-option-selectable default output state: either high or low when the input-side supply (VDD1) is unpowered but output-side supply (VDD2) remains active. This behavior is defined in Table 4 of the datasheet and ensures predictable shutdown states-for example, holding gate drivers in OFF state during MCU brownout. SI86S660BB-IUR implements this via internal configuration stored in nonvolatile memory.

What package type and creepage distance does SI86S660BB-IUR use?

SI86S660BB-IUR uses a WB SOIC-16 package (wide-body SOIC) with 10.3 mm minimum creepage and clearance, enabling 6000 VRMS isolation performance. This package meets IPC-4101/21 specifications and supports automated optical inspection and reflow soldering. SI86S660BB-IUR's body width and internal barrier layout are optimized for reinforced insulation in high-voltage industrial and automotive PCB layouts.

Is SI86S660BB-IUR qualified for automotive applications?

Yes, SI86S660BB-IUR is AEC-Q100 qualified (Grade 0: –40 °C to +125 °C), with AIAG-compliant PPAP documentation support and IMDS/CAMDS listings. It is specifically designed for automotive applications including onboard chargers, battery management systems, and traction inverters-meeting zero-defect manufacturing standards and long-term reliability requirements. SI86S660BB-IUR undergoes full automotive qualification testing per stress test conditions.

SI86S660BB-IUR Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: -

Package/Case:: 16-SSOP (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Capacitive Coupling

Type:: General Purpose

Isolated Power:: No

Number of Channels:: 6

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

Channel Type:: Unidirectional

Voltage - Isolation:: 2500Vrms

Common Mode Transient Immunity (Min):: 100kV/µs

Data Rate:: 150Mbps

Propagation Delay tpLH / tpHL (Max):: 14ns, 14ns

Pulse Width Distortion (Max):: 2ns

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

Voltage - Supply:: 2.25V ~ 5.5V

Grade:: -

Qualification:: -

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-QSOP

SI86S660BB-IUR FAQ

1.How can I place an order for SI86S660BB-IUR through Aetrix?

Please submit a Request for Quotation (RFQ) for SI86S660BB-IUR 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 SI86S660BB-IUR reliable?

The price and inventory of SI86S660BB-IUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S660BB-IUR is usually 5 days.

3.What payment methods are accepted for SI86S660BB-IUR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S660BB-IUR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI86S660BB-IUR?

SI86S660BB-IUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI86S660BB-IUR 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 SI86S660BB-IUR?

For technical support, including SI86S660BB-IUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S660BB-IUR requirements.

6.How does Aetrix verify that SI86S660BB-IUR is sourced from the original manufacturer or authorized distributors?

All SI86S660BB-IUR 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 SI86S660BB-IUR meets industry standards.

7.What is the process for return or replacement of SI86S660BB-IUR?

All SI86S660BB-IUR units undergo pre-shipment inspection (PSI). If there is an issue with SI86S660BB-IUR, 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 SI86S660BB-IUR part is unused and in its original packaging.

Return procedure for SI86S660BB-IUR:

1.Submit a request within 90 days.

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

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