My Inquiry
My Account
Skyworks Solutions Inc. SI86S660EC-AS1R
- Part No.:
- SI86S660EC-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86S660EC-AS1R.pdf
- Description:
- 3.75 KVRMS ISOLATOR, 6 UNIDIRECT
- Quantity:
- Payment:
- Shipping:
Inventory:4,672
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI86S660EC-AS1R from Skyworks Solutions is a 6-channel, reinforced-isolation digital isolator with 6000 VRMS rating, 150 Mbps data rate, and 10 ns typical propagation delay. It features dual-side supply (2.25–5.5 V), Schmitt-trigger + CMOS inputs, tri-state outputs with enable, and fail-safe default-high output mode. Used in isolated motor control gate drivers and battery management system signal interfaces.
For engineers reviewing the SI86S660EC-AS1R datasheet, SI86S660EC-AS1R pinout, SI86S660EC-AS1R application, or SI86S660EC-AS1R equivalent, key selection criteria include reinforced IEC 60747-17 certification, 125 °C operation, AEC-Q100 qualification, and WB SOIC-16 package compatibility with 8 mm creepage/clearance requirements.
Technical Context
The SI86S660EC-AS1R implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity. Its architecture supports independent UVLO and reset monitoring per side (VDD1/VDD2), with RSTB– threshold at ~1.7 V and UVLO– at 1.98 V.
All six channels are unidirectional (A→B), with dedicated EN1/EN2 pins enabling tri-state control of Side A and Side B outputs respectively. The device integrates 50 Ω nominal output impedance per channel and requires 0.1 µF + 10 µF bypass capacitors on both sides.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, CAN FD, and real-time control loop signaling without protocol translation. |
| Isolation rating | 6000 VRMS for 1 minute - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for industrial & automotive safety-critical systems. |
| Propagation delay | 10 ns typical - enables sub-microsecond timing-critical feedback in motor control and power converter gate drive circuits. |
| Supply voltage | 2.25–5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level-shifting. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive use and industrial environments with extended thermal cycling. |
| CMTI | 100 kV/µs minimum - ensures reliable operation in high dv/dt switching environments like SiC/GaN inverters. |
| Fail-safe mode | Default high output - maintains safe logic state during VDD1 loss while VDD2 remains powered, critical for fault-handling in BMS. |
Pinout & Package
SI86S660EC-AS1R is housed in a wide-body SOIC-16 (WB SOIC-16) package with 8.0 mm creepage and clearance, supporting 6000 VRMS isolation. Pin numbering follows standard SOIC-16 layout (pin 1 = VDD1, pin 16 = VDD2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 | Side A / Side B supply | Independent 2.25–5.5 V supplies; each requires local 0.1 µF + 10 µF bypassing for stable RF modulation. |
| GND1, GND2 | Side A / Side B ground | Galvanically separated grounds; no shared reference required across isolation barrier. |
| A1–A6 | Side A input signals | CMOS/Schmitt-trigger inputs; accept 2.25–5.5 V logic levels; no external pull-ups needed. |
| B1–B6 | Side B output signals | 50 Ω nominal output impedance; compatible with controlled-impedance PCB traces up to 150 Mbps. |
| EN1, EN2 | Output enable (active high) | Tri-states all A-side (EN1) or B-side (EN2) outputs simultaneously; used for power sequencing and bus arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift issues of optocouplers; provides stable timing over full –40 to 125 °C range. |
| No start-up initialization | Outputs become valid within 0.3 ms of VDD crossing UVLO+; no firmware handshake or configuration required. |
| Reinforced IEC 60747-17 rating | Validated for functional safety applications requiring dual insulation barriers, including ISO 26262 ASIL-D subsystems. |
| Tri-state outputs with enable | EN1/EN2 allow dynamic bus sharing across multiple isolated peripherals without contention or signal collision. |
| Fail-safe default-high option | Ensures active-high enable signals remain asserted during primary-side power loss-critical for gate driver safety states. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications with 1000-hour HTOL, ESD, and thermal shock testing per JESD22 standards. |
Applications
| Motor Control Gate Driver Interface | Automotive Battery Management System |
|---|---|
|
Use Scenario: Isolating PWM signals from MCU to high-voltage IGBT/SiC gate drivers in traction inverters. IC Role / Device Role / Timing Role: Unidirectional signal isolator transmitting six independent gate control signals with <10 ns skew. Use Value: Enables precise dead-time control and prevents shoot-through faults during fast-switching (≥100 kHz) operation. |
Use Scenario: Isolating cell voltage measurement data and balancing command signals between battery pack and MCU. IC Role / Device Role / Timing Role: Six-channel isolator separating analog front-end ADC interface (Side A) from digital controller domain (Side B). Use Value: Maintains functional safety integrity during transient overvoltage events while supporting 1 MHz sampling rates. |
| Industrial PLC Digital I/O Module | Isolated Switch-Mode Power Supply Feedback |
|
Use Scenario: Providing galvanic isolation for 6-channel digital input/output expansion in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectionally configurable (via EN1/EN2) isolator handling discrete sensor inputs and actuator outputs. Use Value: Eliminates ground loops and common-mode noise in factory-floor environments with >100 V/m EMI. |
Use Scenario: Isolating error amplifier output and synchronous rectifier control signals in 1–3 kW AC/DC converters. IC Role / Device Role / Timing Role: High-CMTI isolator transmitting feedback loop signals across primary-secondary boundary with minimal phase shift. Use Value: Preserves loop stability margin by limiting propagation delay to 10 ns and pulse width distortion to 3.5 ns. |
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 on Side B. | Requires no external isolated supply; higher quiescent current (10.5 mA vs. 2.8 mA at 5 V). | Choose when isolated power is unavailable; avoid if board space or efficiency is constrained. |
| ISO6760FDWR | 6-channel, 5000 VRMS, 50 Mbps max, 16-pin SOIC, lower CMTI (85 kV/µs). | Lacks AEC-Q100 qualification and reinforced IEC 60747-17 rating; not approved for automotive traction systems. | Acceptable for industrial automation where 125 °C operation and 6000 VRMS are not mandatory. |
Compared with ADUM6601ARIZ-RL and ISO6760FDWR, SI86S660EC-AS1R delivers 3× higher data rate, 100 kV/µs CMTI, and full automotive qualification-making it optimal for high-performance, safety-critical isolation where timing precision and regulatory compliance are non-negotiable.
Availability
SI86S660EC-AS1R is available at Aetrix Electronics and suitable for industrial automation systems, automotive battery management systems, and isolated switch-mode power supplies requiring stable component supply across multi-year production cycles.
Supply support for SI86S660EC-AS1R 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, high-speed digital isolation in automotive and industrial applications demanding reinforced safety certification and extended temperature operation.
FAQ
What is the isolation voltage rating of SI86S660EC-AS1R and which safety standards does it meet?
SI86S660EC-AS1R has a 6000 VRMS isolation rating for 1 minute per UL 1577 and is certified to IEC 60747-17 (reinforced insulation), CSA 62368-1/60601-1, and CQC GB4943.1. This qualifies it for use in medical equipment, EV traction inverters, and industrial safety PLCs where dual-barrier protection is mandated.
Does SI86S660EC-AS1R require external components for basic operation?
Yes, SI86S660EC-AS1R requires 0.1 µF and 10 µF bypass capacitors on both VDD1-GND1 and VDD2-GND2 pairs, placed adjacent to the package. No pull-up/down resistors are needed on A1–A6 or B1–B6 due to integrated Schmitt-trigger inputs and CMOS thresholds.
How does the fail-safe default-high mode function in SI86S660EC-AS1R during power loss?
In SI86S660EC-AS1R, when VDD1 drops below UVLO– (1.98 V) while VDD2 remains powered, all B1–B6 outputs transition to and hold logic high. This behavior is hard-coded per ordering option and ensures safe deactivation of downstream gate drivers or relays during primary-side brownout.
What is the maximum data rate supported by SI86S660EC-AS1R and how is timing performance characterized?
SI86S660EC-AS1R supports up to 150 Mbps with 10 ns typical propagation delay and 3.5 ns typical pulse width distortion. These values are measured at VDD = 5.0 V, TA = 25 °C, CL = 15 pF, and apply uniformly across all six channels without inter-channel skew degradation.
Is SI86S660EC-AS1R qualified for automotive applications and what does that entail?
Yes, SI86S660EC-AS1R is AEC-Q100 Grade 1 qualified (–40 to 125 °C), with AIAG-compliant PPAP documentation, IMDS/CAMDS listings, and automotive-specific manufacturing flow validation. It meets zero-defect requirements for onboard chargers, battery management, and traction inverters.
SI86S660EC-AS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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:
- 3750Vrms
- 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
SI86S660EC-AS1R FAQ
1.How can I place an order for SI86S660EC-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S660EC-AS1R 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 SI86S660EC-AS1R reliable?
The price and inventory of SI86S660EC-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S660EC-AS1R is usually 5 days.
3.What payment methods are accepted for SI86S660EC-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S660EC-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S660EC-AS1R?
SI86S660EC-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S660EC-AS1R 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 SI86S660EC-AS1R?
For technical support, including SI86S660EC-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S660EC-AS1R requirements.
6.How does Aetrix verify that SI86S660EC-AS1R is sourced from the original manufacturer or authorized distributors?
All SI86S660EC-AS1R 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 SI86S660EC-AS1R meets industry standards.
7.What is the process for return or replacement of SI86S660EC-AS1R?
All SI86S660EC-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S660EC-AS1R, 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 SI86S660EC-AS1R part is unused and in its original packaging.
Return procedure for SI86S660EC-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S660EC-AS1R Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
