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Skyworks Solutions Inc. SI86S641BE-IS2R
- Part No.:
- SI86S641BE-IS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86S641BE-IS2R.pdf
- Description:
- 6.0 KVRMS ISOLATOR, 4 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:1,856
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Product details
Overview
SI86S641BE-IS2R from Skyworks Solutions is a 4-channel reinforced digital isolator with bidirectional signal isolation across an integrated semiconductor barrier, supporting up to 150 Mbps data rate, 10 ns typical propagation delay, and 6000 VRMS isolation rating. It operates from 2.25–5.5 V on both sides and is qualified to AEC-Q100 for automotive traction inverters and battery management systems.
For engineers reviewing the SI86S641BE-IS2R datasheet, SI86S641BE-IS2R pinout, SI86S641BE-IS2R application, or SI86S641BE-IS2R equivalent, key selection criteria include fail-safe output configuration (default-low), Schmitt-trigger + CMOS input thresholds, 36 ns input deglitch filtering, and WB SOIC-16 package with 8.3 mm creepage for reinforced insulation compliance per IEC 60747-17.
Technical Context
The SI86S641BE-IS2R implements RF-based on/off keying modulation across a monolithic silicon isolation barrier, eliminating startup initialization and enabling deterministic timing without clock recovery circuits. Its architecture delivers 100 kV/µs CMTI and supports independent undervoltage lockout (UVLO) and reset (RSTB) on both sides with 0.3 ms full-power startup time.
It features four isolated bidirectional channels with tri-state outputs controlled by side-specific enable pins (EN1/EN2), selectable default-low fail-safe mode, and integrated 36 ns input noise filters-confirmed for all four channels in the S641 variant per datasheet Section 3.4.5 and Figure 2.
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 without external clock forwarding. |
| Propagation delay | 10 ns typical - enables tight timing budgets in motor control gate drivers and real-time feedback loops. |
| Isolation rating | 6000 VRMS - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for industrial and automotive safety-critical systems. |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains without level shifters. |
| Input filtering | 36 ns deglitch - suppresses sub-36 ns transients on all four channels, critical for noisy motor drive and inverter environments. |
| Fail-safe mode | Default-low output - ensures safe state during power loss on Side A while Side B remains powered, per ordering option 'E'. |
| Operating temperature | –40 to 125 °C - validated for under-hood automotive applications including onboard chargers and traction inverters. |
Pinout & Package
SI86S641BE-IS2R uses a wide-body SOIC-16 (WB SOIC-16) package with 8.3 mm creepage and reinforced insulation construction. Pinout follows Figure 2 of the datasheet for Si86S64x/L4x variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A supply | Power and ground for primary-side inputs (A1–A4); requires 0.1 µF + 10 µF bypassing per side. |
| A1–A4 | Side A I/O | Bidirectional digital channels with Schmitt-trigger + CMOS thresholds; support 36 ns deglitch filtering. |
| EN1 | Side A enable | Active-high control for tri-stating all Side A outputs; internal 10 kΩ pull-up recommended. |
| VDD2, GND2 | Side B supply | Power and ground for secondary-side outputs (B1–B4); galvanically isolated from Side A. |
| B1–B4 | Side B I/O | Isolated mirror of A1–A4; output state follows input with 10 ns propagation delay and fail-safe default-low behavior. |
| EN2 | Side B enable | Active-high control for tri-stating all Side B outputs; independent of EN1 for asymmetric control. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift issues of optocouplers; provides stable 150 Mbps operation over –40 to 125 °C. |
| Reinforced insulation | 6000 VRMS withstand and IEC 60747-17 certification enable use in medical (60601-1) and EV battery systems without additional safety components. |
| Fail-safe default-low | Guarantees B1–B4 outputs drive low during Side A power loss-critical for disabling IGBT gate drivers in fault conditions. |
| 36 ns input deglitch | Hardware filter blocks EMI-induced glitches common in motor drives and inverters, reducing firmware validation burden. |
| AEC-Q100 Grade 1 | Qualified for automotive applications up to 125 °C ambient; manufactured using automotive-specific process flows for low defectivity. |
Applications
| Industrial Motor Control | Automotive Battery Management |
|---|---|
Use Scenario: Isolating PWM signals and current-sense feedback between MCU and three-phase inverter gate drivers in servo drives. IC Role / Device Role / Timing Role: Bidirectional channel isolator providing 10 ns timing accuracy for synchronized gate drive and fault reporting across 6000 VRMS barrier. Use Value: Enables compact, high-efficiency designs meeting IEC 61800-5-1 safety requirements without optocoupler latency or aging. | Use Scenario: Isolating cell voltage monitoring and balancing commands between battery controller and slave monitoring ICs in 400–800 V packs. IC Role / Device Role / Timing Role: Reinforced isolator with default-low fail-safe ensuring open-circuit detection and safe shutdown during controller power loss. Use Value: Meets ASIL-B functional safety requirements via certified 6000 VRMS isolation and AEC-Q100 qualification. |
| Isolated ADC Interface | Onboard Charger Communication |
Use Scenario: Connecting isolated sigma-delta ADCs (e.g., AMC1306) to host processor in high-voltage DC-DC converters. IC Role / Device Role / Timing Role: Low-jitter 4-channel isolator preserving 16-bit resolution timing integrity for synchronous sampling. Use Value: Eliminates ground loop errors and enables ±10 ppm measurement accuracy in precision power supplies. | Use Scenario: Isolating CAN FD and analog sensor signals between OBC controller and high-voltage AC/DC stage in EV charging systems. IC Role / Device Role / Timing Role: High-EMI-immunity isolator with 100 kV/µs CMTI protecting communication during high-di/dt switching events. Use Value: Ensures uninterrupted charging session handshaking even during 100 A+ load transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2401ARWZ | 4-channel, 25 Mbps max, 5000 VRMS, no deglitch filter, non-AEC-Q100 | Limited to industrial automation; insufficient for automotive traction inverters requiring >100 Mbps and AEC-Q100 | Choose when cost sensitivity outweighs speed/safety needs and 36 ns filtering is unnecessary. |
| ISO6741FDWR | 4-channel, 50 Mbps max, 5000 VRMS, no fail-safe default-low option, no deglitch | Suitable for general-purpose isolation but lacks reinforced rating and automotive qualification for BMS use cases | Select only for non-safety-critical 3.3 V systems where 150 Mbps and 6000 VRMS are not required. |
Compared with ADUM2401ARWZ and ISO6741FDWR, SI86S641BE-IS2R delivers 3× higher data rate, 20% higher isolation voltage, AEC-Q100 qualification, and hardware deglitch filtering-making it uniquely suited for next-generation EV power electronics and high-fidelity industrial feedback loops.
Availability
SI86S641BE-IS2R is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor drives, isolated ADC interfaces, and onboard charger communication requiring stable component supply across extended temperature and safety-critical operating conditions.
Supply support for SI86S641BE-IS2R 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 demanding reinforced isolation, high-speed deterministic timing, and AEC-Q100 qualification-targeting traction inverters, BMS, and precision power conversion.
FAQ
What is the isolation voltage rating of SI86S641BE-IS2R and which safety standards does it meet?
SI86S641BE-IS2R has a 6000 VRMS isolation rating per UL 1577 for 1 minute and is certified to IEC 60747-17 (reinforced insulation), CSA 62368-1/60601-1, and CQC GB4943.1. This enables its use in medical equipment and EV battery systems where reinforced insulation is mandated. The rating is validated for the WB SOIC-16 package used in SI86S641BE-IS2R.
Does SI86S641BE-IS2R support fail-safe operation, and how is it configured?
Yes, SI86S641BE-IS2R is ordered with default-low fail-safe mode (denoted by 'E' in the part number). When Side A loses power while Side B remains powered, B1–B4 outputs are actively driven low-ensuring safe shutdown of downstream gate drivers or protection circuits. This behavior is hardwired per ordering option and requires no external configuration.
What is the purpose of the 36 ns input deglitch filter in SI86S641BE-IS2R?
The 36 ns input deglitch filter in SI86S641BE-IS2R removes sub-36 ns noise pulses from A1–A4 inputs before they cross the isolation barrier. This prevents false triggering in electrically noisy environments like motor drives and inverters. The filter is standard on all SI86S641BE-IS2R units and adds fixed 36 ns delay to valid input transitions.
Can SI86S641BE-IS2R be used in automotive applications, and what qualifications does it hold?
Yes, SI86S641BE-IS2R is AEC-Q100 Grade 1 qualified (–40 to 125 °C) and built using automotive-specific manufacturing flows. It supports automotive applications including onboard chargers, battery management systems, and traction inverters. Documentation includes AIAG-compliant PPAP, IMDS, and CAMDS listings per the datasheet.
What are the supply voltage requirements and bypassing recommendations for SI86S641BE-IS2R?
SI86S641BE-IS2R operates from 2.25 V to 5.5 V on both VDD1 and VDD2 sides. Each side requires a 0.1 µF ceramic capacitor plus a 10 µF bulk capacitor placed adjacent to the respective VDD/GND pins. This dual-capacitor network suppresses high-frequency noise and sustains transient current demands during 150 Mbps switching.
SI86S641BE-IS2R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 6000Vrms
- 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
SI86S641BE-IS2R FAQ
1.How can I place an order for SI86S641BE-IS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S641BE-IS2R 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 SI86S641BE-IS2R reliable?
The price and inventory of SI86S641BE-IS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S641BE-IS2R is usually 5 days.
3.What payment methods are accepted for SI86S641BE-IS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S641BE-IS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S641BE-IS2R?
SI86S641BE-IS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S641BE-IS2R 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 SI86S641BE-IS2R?
For technical support, including SI86S641BE-IS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S641BE-IS2R requirements.
6.How does Aetrix verify that SI86S641BE-IS2R is sourced from the original manufacturer or authorized distributors?
All SI86S641BE-IS2R 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 SI86S641BE-IS2R meets industry standards.
7.What is the process for return or replacement of SI86S641BE-IS2R?
All SI86S641BE-IS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S641BE-IS2R, 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 SI86S641BE-IS2R part is unused and in its original packaging.
Return procedure for SI86S641BE-IS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S641BE-IS2R 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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