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Skyworks Solutions Inc. SI86S660EC-IS1R
- Part No.:
- SI86S660EC-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86S660EC-IS1R.pdf
- Description:
- 3.75 KVRMS ISOLATOR, 6 UNIDIRECT
- Quantity:
- Payment:
- Shipping:
Inventory:2,190
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Product details
Overview
SI86S660EC-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 operates across 2.25–5.5 V supplies on both sides, supports fail-safe default-high output mode, and is qualified to AEC-Q100 for automotive use in traction inverters and battery management systems.
For engineers reviewing the SI86S660EC-IS1R datasheet, SI86S660EC-IS1R pinout, SI86S660EC-IS1R application, or SI86S660EC-IS1R equivalent, key selection criteria include reinforced IEC 60747-17 certification, 100 kV/µs CMTI, tri-state outputs with EN1/EN2 control, and compatibility with industrial automation and EV powertrain signal isolation requirements.
Technical Context
The SI86S660EC-IS1R implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture delivers precise timing (3.5 ns pulse width distortion) and supports independent undervoltage lockout (UVLO) and reset thresholds on both sides (VDD1/VDD2).
It features six bidirectional isolated channels with Schmitt-trigger + CMOS input thresholds, selectable fail-safe output state during unpowered conditions, and integrated 100 kΩ weak pulldown on outputs during UVLO. The device uses HF XMTR/RCVR circuitry per channel and requires only 0.1 µF and 10 µF bypass capacitors per supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 150 Mbps - supports high-speed serial interfaces including isolated SPI and QSPI data paths. |
| Isolation Rating | 6000 VRMS for 1 minute - meets reinforced insulation requirements per UL 1577 and IEC 60747-17. |
| Propagation Delay | 10 ns typical - enables tight timing budgets in motor control gate drivers and ADC sampling synchronization. |
| Pulse Width Distortion | 3.5 ns typical - ensures minimal duty cycle error in PWM and clock forwarding applications. |
| CMTI | ≥100 kV/µs - maintains signal integrity in high dv/dt environments like SiC/GaN inverter switching nodes. |
| Supply Voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains without level shifters. |
| Operating Temperature | –40 to +125 °C - supports under-hood automotive and industrial ambient conditions. |
Pinout & Package
SI86S660EC-IS1R is housed in a WB SOIC-16 package (wide-body, 10.3 mm creepage/clearance), supporting 6000 VRMS isolation. Pin count and layout conform to Figure 4 of the datasheet (Si86S660 variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply | Provides bias and reference for A-side I/O; requires local 0.1 µF + 10 µF decoupling. |
| A1–A6 | Digital I/O (Side A) | Bidirectional isolated data channels; Schmitt-trigger inputs ensure noise margin >15% of VDDx. |
| EN1, EN2 | Active-high enable | Tri-states all outputs on respective side; used for power sequencing and bus arbitration. |
| VDD2, GND2 | Side B power supply | Independent isolated supply domain; supports different voltage than Side A. |
| B1–B6 | Digital I/O (Side B) | Galvanically isolated mirror of A1–A6; maintains signal integrity across HV barrier. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot-time delays - outputs follow inputs immediately after UVLO exit. |
| Reinforced IEC 60747-17 rating | Validated for safety-critical automotive and medical systems requiring dual-redundant insulation. |
| Tri-state outputs with enable | EN1/EN2 pins allow dynamic bus contention control without external logic or pull-ups. |
| Selectable fail-safe mode | Ordering option sets default output state (high/low) when VDDx is unpowered - critical for safe shutdown in BMS. |
| High electromagnetic immunity | 100 kV/µs CMTI and 8 kV HBM ESD rating protect against fast transients in motor drives and chargers. |
Applications
| Industrial Motor Control | Automotive Traction Inverter |
|---|---|
Use Scenario: Isolating gate drive signals between MCU and SiC half-bridge modules in servo drives. IC Role / Device Role / Timing Role: Six-channel digital isolator providing independent PWM and fault feedback paths across 6000 VRMS barrier. Use Value: 10 ns propagation delay enables <100 ns total gate loop latency; 100 kV/µs CMTI prevents false triggering during 10 kV/µs switching events. | Use Scenario: Signal isolation between vehicle controller and inverter DC-link monitoring circuits. IC Role / Device Role / Timing Role: Reinforced isolator for voltage sense, current sense, and IGBT desaturation feedback in ISO 26262 ASIL-D subsystems. Use Value: AEC-Q100 qualification and IEC 60747-17 certification satisfy functional safety evidence requirements without additional system-level validation. |
| Isolated ADC Interface | Onboard Charger (OBC) |
Use Scenario: Isolating serial interface between isolated precision ADC (e.g., ADS131M04) and host processor. IC Role / Device Role / Timing Role: High-speed, low-jitter isolator preserving 16-bit data integrity across ±1000 V common-mode barriers. Use Value: 3.5 ns pulse width distortion minimizes aperture uncertainty in simultaneous sampling; 150 Mbps supports oversampled data streaming. | Use Scenario: Isolating communication lines (UART, CAN, SPI) between low-voltage control board and high-voltage AC/DC stage in 11 kW OBC. IC Role / Device Role / Timing Role: Robust digital isolator for bidirectional control and status reporting across reinforced 6000 VRMS barrier. Use Value: Wide 2.25–5.5 V supply range accommodates both 3.3 V MCU and 5 V level-shifted interfaces; WB SOIC-16 meets creepage requirements for 1000 VAC systems. |
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, 100 Mbps, integrated isolated DC-DC converter | Eliminates need for external isolated power supply but consumes more board area and has higher quiescent current | Choose ADUM6600ARIZ-RL when isolated side power delivery is constrained; SI86S660EC-IS1R when minimizing power loss and maximizing data rate are priorities. |
| ISO6760FDWR | 6-channel, 5000 VRMS, 50 Mbps, lower CMTI (85 kV/µs), no AEC-Q100 qualification | Limited to industrial temperature range (–40 to 105 °C); not certified for automotive safety-critical functions | Choose ISO6760FDWR for cost-sensitive industrial PLC I/O modules; SI86S660EC-IS1R for automotive-grade reliability and 125 °C operation. |
Compared with ADUM6600ARIZ-RL and ISO6760FDWR, SI86S660EC-IS1R delivers the highest data rate (150 Mbps) and strongest noise immunity (100 kV/µs CMTI) while meeting AEC-Q100 and IEC 60747-17 requirements - making it optimal for EV powertrain and high-performance industrial isolation where timing precision and safety certification are non-negotiable.
Availability
SI86S660EC-IS1R is available at Aetrix Electronics and suitable for industrial motor control, automotive traction inverters, isolated ADC interfaces, and onboard charger designs requiring stable component supply across extended product lifecycles.
Supply support for SI86S660EC-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, with leadership in RF, timing, and isolation technologies.
The Si86S6xx family was designed specifically for high-reliability signal isolation in automotive electrification and industrial automation, emphasizing reinforced safety certification, ultra-low propagation delay, and immunity to fast transient noise.
FAQ
What is the isolation rating and safety certification status of SI86S660EC-IS1R?
SI86S660EC-IS1R provides 6000 VRMS isolation for 1 minute per UL 1577 and is certified to IEC 60747-17 for reinforced insulation. It also meets CSA 62368-1 and 60601-1, and CQC GB4943.1 requirements. These certifications are documented in Skyworks' official safety reports and apply directly to the SI86S660EC-IS1R part number in its WB SOIC-16 package.
Does SI86S660EC-IS1R support fail-safe output configuration, and how is it implemented?
Yes, SI86S660EC-IS1R supports selectable fail-safe output mode via ordering option - SI86S660EC-IS1R is configured for default-high output when VDDx is unpowered. This behavior is enforced by internal circuitry that pulls outputs to logic high during UVLO, ensuring safe state retention in battery management and motor control fault conditions.
What are the supply voltage requirements and bypass capacitor recommendations for SI86S660EC-IS1R?
SI86S660EC-IS1R operates from 2.25 V to 5.5 V on both VDD1 and VDD2 rails. Skyworks specifies 0.1 µF ceramic + 10 µF bulk capacitors placed adjacent to each VDD/GND pair. These values are mandatory for stable RF modulation and noise immunity; omitting either capacitor degrades CMTI performance and may cause intermittent communication errors.
How does the EN1 and EN2 pin functionality work on SI86S660EC-IS1R?
EN1 and EN2 are active-high enable inputs controlling all outputs on Side A and Side B respectively. When low, they place corresponding side's outputs in high-impedance (tri-state) mode. This allows dynamic bus sharing and power sequencing - for example, holding EN2 low during VDD2 ramp-up prevents metastable outputs during startup of SI86S660EC-IS1R.
Is SI86S660EC-IS1R qualified for automotive applications, and what does AEC-Q100 Grade 0 mean?
Yes, SI86S660EC-IS1R is AEC-Q100 qualified Grade 0 (–40 to +150 °C junction), with full automotive-specific manufacturing flow and PPAP documentation support. Grade 0 extends beyond standard Grade 1 (–40 to +125 °C) and validates SI86S660EC-IS1R for under-hood traction inverter control units where peak junction temperatures exceed 125 °C.
SI86S660EC-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
SI86S660EC-IS1R FAQ
1.How can I place an order for SI86S660EC-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S660EC-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 SI86S660EC-IS1R reliable?
The price and inventory of SI86S660EC-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S660EC-IS1R is usually 5 days.
3.What payment methods are accepted for SI86S660EC-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S660EC-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S660EC-IS1R?
SI86S660EC-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S660EC-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 SI86S660EC-IS1R?
For technical support, including SI86S660EC-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S660EC-IS1R requirements.
6.How does Aetrix verify that SI86S660EC-IS1R is sourced from the original manufacturer or authorized distributors?
All SI86S660EC-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 SI86S660EC-IS1R meets industry standards.
7.What is the process for return or replacement of SI86S660EC-IS1R?
All SI86S660EC-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S660EC-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 SI86S660EC-IS1R part is unused and in its original packaging.
Return procedure for SI86S660EC-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S660EC-IS1R Tags
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