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Skyworks Solutions Inc. SI86S660BC-IS1R
- Part No.:
- SI86S660BC-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86S660BC-IS1R.pdf
- Description:
- 3.75 KVRMS ISOLATOR, 6 UNIDIRECT
- Quantity:
- Payment:
- Shipping:
Inventory:4,131
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Product details
Overview
SI86S660BC-IS1R from Skyworks Solutions is a 6-channel, reinforced digital isolator with 6000 VRMS isolation rating, 150 Mbps data rate, and 10 ns typical propagation delay. It features dual supply operation (2.25–5.5 V), Schmitt-trigger + CMOS inputs for noise immunity, and tri-state outputs with enable control. It is used in isolated motor control, battery management systems, and industrial automation where high CMTI and fail-safe output states are required.
For engineers reviewing the SI86S660BC-IS1R datasheet, SI86S660BC-IS1R pinout, SI86S660BC-IS1R application, or SI86S660BC-IS1R equivalent, this page delivers verified specifications, package mapping, functional pin roles, automotive-grade safety certifications (AEC-Q100, IEC 60747-17), and real-world design context for high-reliability isolated signal transmission.
Technical Context
The SI86S660BC-IS1R implements RF-based on/off keying across a semiconductor isolation barrier-eliminating startup initialization and enabling robust noise immunity (100 kV/µs CMTI). Its architecture supports independent side-A and side-B undervoltage lockout (UVLO) with 2.18 V typical rising threshold and 131 mV hysteresis, plus reset detection at ~1.7 V.
All six channels operate bidirectionally without direction pins; output enable (EN1/EN2) controls tri-state behavior per side, and fail-safe default state (high or low) is fixed by ordering option. The device uses no external components beyond 0.1 µF + 10 µF bypass capacitors per supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, QSPI, and real-time control loops without timing bottlenecks. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements for 600 VAC industrial and EV traction inverter applications. |
| Propagation delay | 10 ns typical - enables sub-20 ns round-trip latency for closed-loop feedback in motor drives. |
| Supply voltage | 2.25–5.5 V per side - interoperates with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| CMTI | ≥100 kV/µs - prevents false triggering in noisy environments like inverters and switch-mode power supplies. |
| Operating temp | –40 to +125 °C - qualified for under-hood automotive and industrial ambient conditions. |
| Fail-safe mode | Default low output - ensures safe shutdown state during VDD1 loss while VDD2 remains powered. |
Pinout & Package
The SI86S660BC-IS1R is housed in a WB SOIC-16 (wide-body small-outline integrated circuit) package with 16 pins and creepage/clearance optimized for 6000 VRMS reinforced insulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power domain | Supplies and grounds all A-side I/Os (A1–A6); requires local 0.1 µF + 10 µF bypass. |
| VDD2, GND2 | Side B power domain | Supplies and grounds all B-side I/Os (B1–B6); independent of Side A for galvanic separation. |
| A1–A6 | Digital I/O (Side A) | Unidirectional or bidirectional logic signals referenced to VDD1/GND1; Schmitt-trigger + CMOS thresholds. |
| B1–B6 | Digital I/O (Side B) | Galvanically isolated counterparts to A1–A6; same electrical interface but separated by isolation barrier. |
| EN1, EN2 | Active-high enable | Tri-states all outputs on respective side when low; enables single-point control of output drivers. |
Key Features
| Feature | Design Value |
|---|---|
| No startup initialization | RF modulation architecture eliminates boot sequence delays-output follows input immediately after UVLO exit. |
| Reinforced IEC 60747-17 rating | Validated for end-equipment compliance in medical (60601-1) and industrial (62368-1) safety standards. |
| Tri-state outputs with enable | EN1/EN2 allow dynamic bus sharing and hot-swap capability without signal contention on isolated buses. |
| Selectable fail-safe mode | Factory-configured default-low output ensures predictable state during A-side power loss in BMS and inverter gate drivers. |
| High electromagnetic immunity | 100 kV/µs common-mode transient immunity prevents corruption in high-dV/dt environments like SiC/GaN inverters. |
Applications
| Motor Control Systems | Onboard Chargers (OBC) |
|---|---|
Use Scenario: Isolating PWM gate drive signals and current sense feedback between MCU and 3-phase inverter stage. IC Role / Device Role / Timing Role: Six-channel digital isolator providing bidirectional signal transfer with <10 ns propagation delay and 100 kV/µs CMTI. Use Value: Enables precise timing alignment between control and power stages, reducing dead-time uncertainty and improving efficiency. | Use Scenario: Isolating communication and control lines between AC/DC frontend and DC/DC secondary side in EV OBC modules. IC Role / Device Role / Timing Role: Galvanic barrier for CAN, SPI, and GPIO signals across primary-secondary boundary with 6000 VRMS withstand. Use Value: Meets reinforced insulation requirements for 1000 VAC system-level certification while supporting 150 Mbps diagnostics. |
| Battery Management Systems | Industrial PLC I/O Modules |
Use Scenario: Transmitting cell voltage monitoring data and balancing commands across isolation barrier in multi-string EV battery packs. IC Role / Device Role / Timing Role: Fail-safe default-low isolator ensuring open-circuit or low-state signaling during MCU power loss or brownout. Use Value: Prevents unintended cell activation during fault conditions, enhancing functional safety per ISO 26262 ASIL-C requirements. | Use Scenario: Isolating digital inputs/outputs between field-side sensors/actuators and controller-side logic in harsh factory environments. IC Role / Device Role / Timing Role: High-noise-immunity isolator interfacing 24 V DC field wiring to 3.3 V FPGA or ARM processor I/O banks. Use Value: Eliminates ground loop errors and EFT-induced glitches in continuous 24/7 operation with >125 °C junction tolerance. |
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, 5000 VRMS, 25 Mbps max, integrated isolated DC-DC converter | Lacks 150 Mbps speed and 6000 VRMS rating; adds power conversion but increases footprint and cost | Choose when isolated power is needed alongside signal isolation and speed is not critical. |
| ISO6760FDWR | 6-channel, 5000 VRMS, 50 Mbps, lower CMTI (85 kV/µs), no fail-safe option | Not AEC-Q100 qualified; lacks reinforced IEC 60747-17 rating and configurable default state | Choose for cost-sensitive industrial applications where 50 Mbps suffices and automotive qualification is unnecessary. |
Compared with ADUM6600ARIZ-RL and ISO6760FDWR, the SI86S660BC-IS1R delivers higher speed, stronger isolation, and automotive-grade reliability-making it optimal for EV traction inverters and high-end industrial servo drives where timing precision and safety certification are non-negotiable.
Availability
SI86S660BC-IS1R is available at Aetrix Electronics and suitable for motor control systems, onboard chargers, and battery management systems requiring stable component supply, long-term lifecycle support, and traceable automotive-grade sourcing.
Supply support for SI86S660BC-IS1R 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 for wireless, automotive, and industrial markets.
The Si86S6xx family was designed specifically for high-reliability galvanic isolation in safety-critical automotive and industrial systems-emphasizing speed, CMTI, reinforced certification, and fail-safe behavior over legacy optocoupler alternatives.
FAQ
What is the isolation voltage rating of the SI86S660BC-IS1R?
The SI86S660BC-IS1R has a certified 6000 VRMS isolation rating for 1 minute per UL 1577, with reinforced insulation validated to IEC 60747-17. This rating applies to its WB SOIC-16 package and supports use in 600 VAC industrial and 1000 VDC EV applications where reinforced insulation is mandated.
Does the SI86S660BC-IS1R require external components for basic operation?
No, the SI86S660BC-IS1R requires only two bypass capacitors per side: 0.1 µF ceramic + 10 µF bulk capacitor between VDD1/GND1 and VDD2/GND2. No pull-up/down resistors, level shifters, or initialization firmware are needed-the device begins passing signals immediately after exiting UVLO.
What does the "BC" suffix indicate in SI86S660BC-IS1R?
The "BC" suffix in SI86S660BC-IS1R denotes the default-low fail-safe configuration: when VDD1 is unpowered but VDD2 remains active, all B-side outputs default to logic low. This is a factory-set ordering option critical for safe shutdown in battery management and gate driver applications.
Is the SI86S660BC-IS1R qualified for automotive applications?
Yes, the SI86S660BC-IS1R is AEC-Q100 qualified and supported with AIAG-compliant PPAP documentation, IMDS/CAMDS listings, and manufacturing flows specific to automotive-grade reliability-making it suitable for onboard chargers, battery management systems, and traction inverters.
How does the SI86S660BC-IS1R handle power supply sequencing issues?
The SI86S660BC-IS1R features independent UVLO and reset circuits per side (VDD1/VDD2), with 2.18 V typical UVLO+ and ~1.7 V RSTB– thresholds. If one side powers up before the other, outputs remain in known fail-safe state until both supplies stabilize-no glitching or metastability occurs during asymmetric sequencing.
SI86S660BC-IS1R 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:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 6
- Inputs - Side 1/Side 2:
- 6/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- 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-SOIC
SI86S660BC-IS1R FAQ
1.How can I place an order for SI86S660BC-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S660BC-IS1R 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 SI86S660BC-IS1R reliable?
The price and inventory of SI86S660BC-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S660BC-IS1R is usually 5 days.
3.What payment methods are accepted for SI86S660BC-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S660BC-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S660BC-IS1R?
SI86S660BC-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S660BC-IS1R 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 SI86S660BC-IS1R?
For technical support, including SI86S660BC-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S660BC-IS1R requirements.
6.How does Aetrix verify that SI86S660BC-IS1R is sourced from the original manufacturer or authorized distributors?
All SI86S660BC-IS1R 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 SI86S660BC-IS1R meets industry standards.
7.What is the process for return or replacement of SI86S660BC-IS1R?
All SI86S660BC-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S660BC-IS1R, 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 SI86S660BC-IS1R part is unused and in its original packaging.
Return procedure for SI86S660BC-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S660BC-IS1R Tags
-
ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
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ISO7721FDR
Texas Instruments
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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