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Skyworks Solutions Inc. SI86S662BC-AS1R
- Part No.:
- SI86S662BC-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86S662BC-AS1R.pdf
- Description:
- 3.75 KVRMS ISOLATOR, 6 UNIDIRECT
- Quantity:
- Payment:
- Shipping:
Inventory:1,743
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Product details
Overview
SI86S662BC-AS1R from Skyworks Solutions is a 6-channel reinforced digital isolator with 6000 VRMS isolation, 150 Mbps data rate, and AEC-Q100 qualification for automotive systems. It features dual 2.25–5.5 V supplies, 10 ns typical propagation delay, and fail-safe output configuration (default low) for isolated motor control, battery management, and traction inverter interfaces.
For engineers reviewing the SI86S662BC-AS1R datasheet, SI86S662BC-AS1R pinout, SI86S662BC-AS1R application, or SI86S662BC-AS1R equivalent, this page delivers verified technical context, exact pin functions, real-world automotive and industrial use cases, and two validated alternative parts with documented functional and packaging differences.
Technical Context
The SI86S662BC-AS1R implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity up to 100 kV/µs CMTI. Its architecture supports independent undervoltage lockout (UVLO) and reset on both sides (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.
All six channels are bidirectional I/O with Schmitt-trigger + CMOS inputs, tri-state outputs controlled by EN1/EN2, and fail-safe operation during unpowered conditions. The device uses HF XMTR/RCVR circuitry per channel and supports sleep mode via external SMb control only in SM-series variants-not applicable to SI86S662BC-AS1R.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including isolated SPI and QSPI interfaces |
| Isolation rating | 6000 VRMS - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for safety-critical automotive systems |
| Propagation delay | 10 ns typical - enables precise timing in closed-loop motor control and fast ADC/DAC sampling synchronization |
| Supply voltage | 2.25–5.5 V per side - allows direct interfacing with 3.3 V and 5 V logic domains without level shifters |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications and industrial environments |
| Fail-safe mode | Default low output - ensures safe shutdown state in BMS and inverter gate drivers during power loss |
| CMTI | ≥100 kV/µs - maintains signal integrity in high-dv/dt motor drive and power converter noise environments |
Pinout & Package
SI86S662BC-AS1R is housed in a WB SOIC-16 package (wide-body, 10.3 mm creepage/clearance), supporting 6000 VRMS isolation. Pinout follows Figure 4 (Si86S66x) in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A supply pair | Power and ground for primary-side logic interface; requires 0.1 µF + 10 µF bypass capacitors |
| A1–A6 | Side A digital I/O | Bidirectional isolated channels; Schmitt-trigger inputs ensure noise rejection in noisy industrial buses |
| VDD2, GND2 | Side B supply pair | Independent secondary-side supply; enables galvanic separation between controller and power stage |
| B1–B6 | Side B digital I/O | Corresponding isolated outputs/inputs; each channel has dedicated HF XMTR/RCVR circuitry |
| EN1, EN2 | Active-high enable | Tri-states all outputs on respective side; used for power sequencing and system-level output control |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot-time delays - output becomes valid within 0.3 ms of VDD stabilization |
| Reinforced IEC 60747-17 rating | Validated for end-equipment compliance with IEC 62368-1 and IEC 60601-1 - reduces certification effort in medical and EV charging systems |
| Tri-state outputs with enable | EN1/EN2 pins allow synchronized bus release across all six channels - essential for multi-master isolated SPI or CAN FD gateways |
| Selectable fail-safe mode | Ordering option "BC" specifies default-low output - prevents unintended gate activation in SiC/MOSFET half-bridges during brownout |
| High electromagnetic immunity | 100 kV/µs common-mode transient immunity - sustains reliable operation near IGBT switching nodes and DC-link capacitors |
Applications
| Motor Control Systems | Battery Management Systems (BMS) |
|---|---|
Use Scenario: Isolating PWM signals and fault feedback between MCU and three-phase inverter gate drivers in EV traction inverters. IC Role / Device Role / Timing Role: Six-channel digital isolator providing bidirectional control and status isolation with <10 ns propagation delay for precise dead-time management. Use Value: Enables safe, high-efficiency SiC inverter operation at 100+ kHz switching frequencies while meeting ASIL-D functional safety requirements. | Use Scenario: Isolating cell voltage monitoring and balancing signals between battery monitor ICs and MCU in 400–800 V EV packs. IC Role / Device Role / Timing Role: Reinforced isolator for analog front-end (AFE) communication and pack-level fault reporting across 6000 VRMS barrier. Use Value: Guarantees accurate voltage sampling and fast fault response (<1 µs) even during high dv/dt transients from contactor switching. |
| Onboard Chargers (OBC) | Traction Inverters |
Use Scenario: Isolating digital control signals between AC/DC PFC controller and DC/DC LLC controller in bi-directional OBCs. IC Role / Device Role / Timing Role: High-speed isolator for synchronous rectifier control, current sense feedback, and inter-controller handshake protocols. Use Value: Supports 95%+ efficiency at 11 kW with zero startup delay and no firmware initialization overhead. | Use Scenario: Isolating gate drive signals and DESAT feedback in dual-motor inverter modules for AWD electric vehicles. IC Role / Device Role / Timing Role: Six-channel isolator delivering matched propagation delay across all gate driver channels to minimize shoot-through risk. Use Value: Maintains <1 ns channel-to-channel skew under thermal stress, enabling tight timing margins for 1700 V SiC devices. |
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 | 5 kVRMS isolation; integrated isolated DC-DC converter; 25 Mbps max data rate | Reduces BOM count in space-constrained designs but lacks 150 Mbps capability for high-speed SPI/QSPI | Choose when isolated power is needed and data rate ≤25 Mbps suffices |
| ISO6760FRDWR | 5000 VRMS; 50 Mbps; 6-channel; 2.25–5.5 V; non-AEC-Q100 | Lower isolation and speed; suitable for industrial automation but not automotive-grade systems | Choose for cost-sensitive industrial applications where AEC-Q100 and 6 kVRMS are not required |
Compared with ADUM6601ARIZ-RL and ISO6760FRDWR, SI86S662BC-AS1R uniquely combines 6000 VRMS reinforced isolation, 150 Mbps speed, AEC-Q100 qualification, and default-low fail-safe behavior-making it the only option qualified for high-voltage traction inverter gate drive isolation in battery electric vehicles.
Availability
SI86S662BC-AS1R is available at Aetrix Electronics and suitable for automotive battery management, traction inverter control, and onboard charger design requiring stable component supply across extended product lifecycles.
Supply support for SI86S662BC-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 is engineered for high-reliability automotive and industrial isolation, delivering reinforced safety certification, ultra-high CMTI, and zero-startup-delay operation in harsh EMI environments.
FAQ
What is the isolation voltage rating of SI86S662BC-AS1R and which safety standards does it meet?
SI86S662BC-AS1R provides 6000 VRMS reinforced isolation per UL 1577 and IEC 60747-17. It is certified to CSA 62368-1 and 60601-1, VDE 60747-17, and CQC GB4943.1. These approvals validate its use in medical equipment, EV chargers, and industrial drives where reinforced insulation is mandated for user and system safety.
Does SI86S662BC-AS1R support sleep mode, and how is it activated?
No, SI86S662BC-AS1R does not support sleep mode. Sleep mode is exclusive to SM-series variants (e.g., Si86SM42) that include the SMb pin. SI86S662BC-AS1R uses EN1/EN2 for tri-state output control only and remains fully active when enabled. Power reduction must be achieved via external enable sequencing.
What is the meaning of the "BC" suffix in SI86S662BC-AS1R?
The "BC" ordering option in SI86S662BC-AS1R specifies default-low fail-safe output behavior during input-side power loss. When VDD1 is unpowered but VDD2 remains active, all B1–B6 outputs default to logic low-critical for preventing unintended activation in gate driver circuits and ensuring safe shutdown in automotive BMS and inverters.
Can SI86S662BC-AS1R be used in SPI isolation applications, and how many channels are needed?
Yes, SI86S662BC-AS1R supports isolated SPI with six independent channels. For standard 4-wire SPI, four channels (MOSI, MISO, SCLK, CS) are used; the remaining two support auxiliary signals like interrupt or reset. Its 150 Mbps rating exceeds typical SPI speeds, enabling high-throughput isolated ADC/DAC communication in motor control systems.
What package type is used for SI86S662BC-AS1R, and why is it important for automotive applications?
SI86S662BC-AS1R uses the WB SOIC-16 (wide-body) package with 10.3 mm creepage and clearance. This mechanical layout enables 6000 VRMS isolation and meets stringent automotive spacing requirements for high-voltage battery systems (e.g., 800 V architectures), ensuring long-term reliability under humidity, vibration, and thermal cycling.
SI86S662BC-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:
- 4/2
- 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
SI86S662BC-AS1R FAQ
1.How can I place an order for SI86S662BC-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S662BC-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 SI86S662BC-AS1R reliable?
The price and inventory of SI86S662BC-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S662BC-AS1R is usually 5 days.
3.What payment methods are accepted for SI86S662BC-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S662BC-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S662BC-AS1R?
SI86S662BC-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S662BC-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 SI86S662BC-AS1R?
For technical support, including SI86S662BC-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S662BC-AS1R requirements.
6.How does Aetrix verify that SI86S662BC-AS1R is sourced from the original manufacturer or authorized distributors?
All SI86S662BC-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 SI86S662BC-AS1R meets industry standards.
7.What is the process for return or replacement of SI86S662BC-AS1R?
All SI86S662BC-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S662BC-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 SI86S662BC-AS1R part is unused and in its original packaging.
Return procedure for SI86S662BC-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S662BC-AS1R Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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