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Skyworks Solutions Inc. SI86S662EB-IU
- Part No.:
- SI86S662EB-IU
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
SI86S662EB-IU.pdf
- Description:
- 2.5 KVRMS ISOLATOR, 6 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:3,623
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Product details
Overview
SI86S662EB-IU from Skyworks Solutions is a 6-channel reinforced digital isolator with bidirectional signal isolation across an integrated semiconductor barrier. It delivers DC to 150 Mbps data rate, 10 ns typical propagation delay, and 6000 VRMS isolation rating in a WB SOIC-16 package. It operates from 2.25–5.5 V supplies on both sides and supports fail-safe default-high output mode - used in isolated motor control gate drivers and battery management system communication interfaces.
For engineers reviewing the SI86S662EB-IU datasheet, SI86S662EB-IU pinout, SI86S662EB-IU application, or SI86S662EB-IU equivalent, key selection criteria include reinforced IEC 60747-17 certification, AEC-Q100 qualification for automotive use, tri-state output enable control, and precise timing performance under –40 to 125 °C ambient conditions.
Technical Context
The SI86S662EB-IU implements RF-based on/off keying modulation across its isolation barrier, eliminating startup initialization and enabling robust noise immunity (100 kV/µs CMTI). Its architecture includes independent undervoltage lockout (UVLO) and reset circuitry per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.
All six channels support CMOS/Schmitt-trigger inputs and tri-state outputs controlled by EN1/EN2 pins. The device features selectable fail-safe mode (default high), sleep-mode capability via external SMb pin (not implemented in SI86S662EB-IU variant), and no internal oscillator dependency - relying solely on input signal transitions for data transmission.
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. |
| Propagation delay | 10 ns typical - enables sub-20 ns round-trip latency for closed-loop systems requiring tight timing synchronization. |
| Isolation rating | 6000 VRMS for 1 minute - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for industrial & automotive safety-critical designs. |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains without level-shifting components. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications and industrial inverters with extended thermal cycling. |
| Fail-safe mode | Default high output - ensures safe state during power loss on input side while output side remains powered. |
| CMTI | ≥100 kV/µs - prevents false triggering in high-dv/dt environments such as IGBT gate drive circuits and traction inverters. |
Pinout & Package
SI86S662EB-IU is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance optimized for 6000 VRMS working voltage. Pin 1 is marked with a dot; pin numbering follows standard SOIC convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A supply pair | Power and ground for primary-side I/O (A1–A6); bypass requires 0.1 µF + 10 µF capacitors placed near pins. |
| A1–A6 | Side A digital I/O | Unidirectional input/output channels referenced to VDD1/GND1; Schmitt-trigger inputs improve noise margin. |
| EN1 | Side A output enable | Active-high control: drives all A-side outputs into high-impedance when low - enables bus sharing and power sequencing. |
| VDD2, GND2 | Side B supply pair | Independent power and ground for isolated-side I/O (B1–B6); supports galvanic separation between domains. |
| B1–B6 | Side B digital I/O | Corresponding isolated outputs/inputs for A1–A6; fail-safe default-high behavior active when VDD1 is unpowered. |
| EN2 | Side B output enable | Active-high control: places B-side outputs in high-Z state - critical for multi-master isolated buses and hot-swap scenarios. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced IEC 60747-17 rating | Validated barrier integrity for functional safety applications up to 6000 VRMS, accepted by UL, CSA, VDE, and CQC. |
| No start-up initialization | RF modulation architecture enables immediate data transmission at power-on - eliminates boot delay in time-critical control loops. |
| Tri-state output enable (EN1/EN2) | Single-pin control over all outputs per side - simplifies bus arbitration and reduces external logic in multi-device systems. |
| Selectable fail-safe output | Factory-configured default-high state ensures predictable logic level during input-side brownout - prevents undefined gate driver states. |
| High electromagnetic immunity | 100 kV/µs common-mode transient immunity - maintains signal integrity in noisy motor drive and inverter environments. |
| AEC-Q100 Grade 1 qualification | Qualified for automotive applications with full temperature range (–40 to 125 °C) and zero defect manufacturing flow traceability. |
Applications
| Motor Control Gate Driver Isolation | Automotive Battery Management System (BMS) |
|---|---|
|
Use Scenario: Isolating PWM signals between MCU and IGBT/SiC gate drivers in EV traction inverters. IC Role / Device Role / Timing Role: Six-channel unidirectional isolator transmitting gate enable, fault feedback, and current sense signals across reinforced barrier. Use Value: 10 ns propagation delay ensures <20 ns total loop latency; 6000 VRMS rating supports 800 V DC bus compliance with IEC 61800-5-1. |
Use Scenario: Communication isolation between battery cell monitor ICs and main BMS controller across high-voltage battery packs. IC Role / Device Role / Timing Role: Bidirectional data isolator for daisy-chained UART/SPI links between 12S–16S modules and host MCU. Use Value: AEC-Q100 qualification guarantees reliability in automotive thermal cycles; default-high fail-safe prevents false shutdown during cell monitoring power faults. |
| Industrial Isolated ADC Interface | Isolated Switch-Mode Power Supply Feedback |
|
Use Scenario: Isolating serial interface (SPI/QSPI) between precision ADC (e.g., ADS131M04) and host processor in PLC analog input modules. IC Role / Device Role / Timing Role: High-speed digital isolator preserving timing integrity of conversion data clocks and frame sync signals. Use Value: 150 Mbps capability supports oversampled 24-bit ADC data streaming; CMOS/Schmitt inputs reject EFT bursts per IEC 61000-4-4. |
Use Scenario: Isolating error amplifier output and optocoupler replacement in digitally controlled AC/DC and DC/DC converters. IC Role / Device Role / Timing Role: Unidirectional isolator transmitting PWM duty cycle correction signals from secondary-side controller to primary-side PWM IC. Use Value: 6000 VRMS withstand enables direct connection to >1000 V rectified rails; low propagation delay improves transient response vs. optocouplers. |
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, 50 Mbps max, 2.5 kVRMS isolation, integrated isolated DC-DC converter | Requires no separate isolated supply; lower data rate limits high-speed ADC/SPI use | Choose ADUM6601ARIZ-RL when isolated power generation is needed and 50 Mbps suffices. |
| ISO6760QDWR | 6-channel, 50 Mbps, 5000 VRMS, automotive-grade (AEC-Q100), no fail-safe option | Lacks configurable default-high output; uses capacitive isolation instead of RF modulation | Choose ISO6760QDWR where cost sensitivity outweighs need for fail-safe behavior and 150 Mbps bandwidth. |
Compared with ADUM6601ARIZ-RL and ISO6760QDWR, SI86S662EB-IU provides higher bandwidth (150 Mbps vs. 50 Mbps), superior CMTI (≥100 kV/µs), and factory-set default-high fail-safe - making it optimal for automotive traction inverters and industrial servo drives demanding deterministic timing and safety-critical state handling.
Availability
SI86S662EB-IU is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor drives, and isolated power supply feedback loops requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for SI86S662EB-IU 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 for high-reliability applications.
The Si86S6xx family was designed specifically for automotive and industrial systems requiring reinforced isolation, high-speed data integrity, and fail-safe operation - targeting traction inverters, onboard chargers, and programmable logic controllers.
FAQ
What is the isolation voltage rating of SI86S662EB-IU and which safety standards does it meet?
SI86S662EB-IU is rated for 6000 VRMS isolation for 1 minute per UL 1577 and carries reinforced insulation certification per IEC 60747-17. It also meets CSA 62368-1 and 60601-1, VDE 60747-17, and CQC GB4943.1 - making SI86S662EB-IU suitable for medical, industrial, and automotive end-equipment requiring certified reinforced barriers.
Does SI86S662EB-IU support fail-safe operation, and how is it configured?
Yes, SI86S662EB-IU is factory-configured for default-high fail-safe mode: when VDD1 is unpowered but VDD2 remains active, all B-side outputs drive high. This behavior is fixed per ordering code ('H' suffix denotes default-high; 'L' would indicate default-low). SI86S662EB-IU does not support runtime reconfiguration of this setting.
What are the supply voltage requirements for SI86S662EB-IU on each side of the isolation barrier?
SI86S662EB-IU operates with independent 2.25–5.5 V supplies on Side A (VDD1/GND1) and Side B (VDD2/GND2). Both sides must be within specification simultaneously for normal operation. Undervoltage lockout triggers below 2.10 V (rising) or 1.98 V (falling), with 131 mV typical hysteresis - ensuring SI86S662EB-IU remains inactive during brownout conditions.
How many channels does SI86S662EB-IU provide, and what is their directionality?
SI86S662EB-IU provides six unidirectional digital isolation channels: A1–A6 on Side A and B1–B6 on Side B. All channels transmit from Side A to Side B only. Directionality is fixed and cannot be reversed - unlike Si86SQ44 or Si86SSx variants, SI86S662EB-IU does not support bidirectional or SPI-specific channel mapping.
Is SI86S662EB-IU qualified for automotive applications, and what does that entail?
Yes, SI86S662EB-IU is AEC-Q100 Grade 1 qualified, meaning it is tested and manufactured under automotive-specific process flows with zero-defect traceability. This includes temperature cycling from –40 to 125 °C, ESD robustness (8 kV HBM), and long-term reliability validation - confirming SI86S662EB-IU for use in onboard chargers, battery management systems, and traction inverters.
SI86S662EB-IU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 6
- Inputs - Side 1/Side 2:
- 4/2
- 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
SI86S662EB-IU FAQ
1.How can I place an order for SI86S662EB-IU through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S662EB-IU 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 SI86S662EB-IU reliable?
The price and inventory of SI86S662EB-IU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S662EB-IU is usually 5 days.
3.What payment methods are accepted for SI86S662EB-IU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S662EB-IU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S662EB-IU?
SI86S662EB-IU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S662EB-IU 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 SI86S662EB-IU?
For technical support, including SI86S662EB-IU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S662EB-IU requirements.
6.How does Aetrix verify that SI86S662EB-IU is sourced from the original manufacturer or authorized distributors?
All SI86S662EB-IU 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 SI86S662EB-IU meets industry standards.
7.What is the process for return or replacement of SI86S662EB-IU?
All SI86S662EB-IU units undergo pre-shipment inspection (PSI). If there is an issue with SI86S662EB-IU, 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 SI86S662EB-IU part is unused and in its original packaging.
Return procedure for SI86S662EB-IU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S662EB-IU 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
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