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Skyworks Solutions Inc. SI86S641FE-IS2R
- Part No.:
- SI86S641FE-IS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86S641FE-IS2R.pdf
- Description:
- 6.0 KVRMS ISOLATOR, 4 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:3,655
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Product details
Overview
SI86S641FE-IS2R from Skyworks Solutions is a 4-channel reinforced digital isolator with bidirectional signal isolation across an integrated semiconductor barrier. It supports DC to 150 Mbps data rates, delivers 10 ns typical propagation delay, and provides 6000 VRMS isolation rating in a WB SOIC-16 package. It operates from 2.25–5.5 V supplies and is qualified per AEC-Q100 for automotive battery management systems.
For engineers reviewing the SI86S641FE-IS2R datasheet, SI86S641FE-IS2R pinout, SI86S641FE-IS2R application, or SI86S641FE-IS2R equivalent, key selection considerations include its reinforced IEC 60747-17 certification, selectable fail-safe output (default low), Schmitt-trigger + CMOS input thresholds, and 100 kV/µs CMTI immunity - all critical for isolated ADC interfaces and traction inverter control loops.
Technical Context
The SI86S641FE-IS2R implements RF-based on/off keying modulation across a monolithic semiconductor isolation barrier, eliminating startup initialization and enabling deterministic timing behavior. Its architecture integrates four independent isolation channels with side-A and side-B enable inputs (EN1/EN2), supporting tri-state outputs and fail-safe default-low operation during unpowered conditions.
It features input deglitch filtering (36 ns), precise timing (3.5 ns pulse width distortion), and dual-supply operation with independent UVLO and reset circuitry per side (VDD1/VDD2). The device meets reinforced insulation requirements per UL 1577, VDE 60747-17, CSA 62368-1/60601-1, and CQC GB4943.1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - enables high-speed SPI, isolated ADC/DAC, and motor control feedback links without protocol translation. |
| Propagation delay | 10 ns typical - ensures tight timing alignment between isolated control and sensing paths in real-time power electronics. |
| Isolation rating | 6000 VRMS (1 min) - satisfies reinforced insulation requirements for 1000 VAC industrial bus and 800 VDC EV battery systems. |
| Supply voltage | 2.25–5.5 V per side - supports interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| CMTI | ≥100 kV/µs - prevents false triggering in high-dV/dt environments like SiC/GaN inverter switching nodes. |
| Operating temperature | –40 to +125 °C - validated for under-hood automotive use and industrial ambient conditions without derating. |
| Fail-safe mode | Default low output - ensures safe shutdown state for gate drivers or fault signals when side-A supply fails. |
Pinout & Package
SI86S641FE-IS2R uses a wide-body SOIC-16 (WB SOIC-16) package with 8.3 mm creepage/clearance, rated for 6000 VRMS isolation. Pinout follows Figure 2 of the datasheet for Si86S64x/L4x devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply | Provides isolated 2.25–5.5 V bias for channel inputs (A1–A4); requires local 0.1 µF + 10 µF bypassing. |
| A1–A4 | Side A digital inputs | Four unidirectional input channels with Schmitt-trigger + CMOS thresholds; accept 3.3 V/5 V logic directly. |
| EN1 | Side A output enable | Active-high control: drives all B-side outputs into high-impedance when low - enables shared-bus arbitration. |
| Isolation Barrier | Internal die separation | Monolithic silicon dioxide barrier providing 6000 VRMS withstand and reinforced insulation per IEC 60747-17. |
| B1–B4 | Side B digital outputs | Four unidirectional outputs with 50 Ω nominal impedance; compatible with controlled-impedance PCB routing. |
| EN2 | Side B output enable | Active-high control: places A-side outputs in high-Z - supports bidirectional system-level handshaking. |
| VDD2, GND2 | Side B power supply | Independent 2.25–5.5 V bias for output side; enables galvanic separation of noisy power domains. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced IEC 60747-17 rating | Validated for safety-critical automotive and medical applications requiring dual-redundant insulation barriers. |
| Selectable fail-safe output | Factory-configured default-low state ensures predictable deactivation of downstream circuits during power loss. |
| 36 ns input deglitch filter | Rejects sub-36 ns noise pulses common in motor drive and SMPS environments, preventing false edge detection. |
| No start-up initialization | Immediate functional readiness at power-on - eliminates boot-time delays in safety-critical control loops. |
| AEC-Q100 Grade 1 qualification | Manufactured in automotive-specific process flow with zero-defect screening for battery management and OBC systems. |
Applications
| Isolated ADC Interface | Battery Management System (BMS) |
|---|---|
Use Scenario: Isolating 16-bit sigma-delta ADC outputs in high-voltage battery string monitoring. IC Role / Device Role / Timing Role: Transfers digitized cell voltage data across 800 VDC barrier with <10 ns jitter impact on sampling clock domain. Use Value: Enables accurate, noise-immune measurement without compromising ADC ENOB or introducing ground-loop errors. |
Use Scenario: Communicating fault status and cell balancing commands between high-side controller and low-side pack monitor ICs. IC Role / Device Role / Timing Role: Provides fail-safe default-low signaling path for overvoltage/overtemperature shutdown commands. Use Value: Guarantees safe shutdown even if controller supply collapses, meeting ASIL-B functional safety requirements. |
| Traction Inverter Control | Industrial Motor Drive |
Use Scenario: Isolating PWM gate drive signals from MCU to SiC half-bridge modules in electric vehicle inverters. IC Role / Device Role / Timing Role: Delivers 150 Mbps edge-aligned signals with 3.5 ns pulse width distortion to preserve dead-time integrity. Use Value: Prevents shoot-through by maintaining precise timing margins under 100 kV/µs common-mode transients. |
Use Scenario: Isolating encoder feedback and current sense signals in servo drives operating in EMI-heavy factory environments. IC Role / Device Role / Timing Role: Transmits quadrature A/B/Z signals and analog current feedback across 1000 VAC isolation barrier. Use Value: Eliminates position error caused by ground potential differences and magnetic coupling in multi-axis motion systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM4401BRWZ | 4-channel, 100 Mbps, 5000 VRMS, SOIC-16 (NB), no deglitch filter | Lacks 36 ns input filter and AEC-Q100 qualification; lower CMTI (75 kV/µs) | Acceptable for non-automotive industrial use where cost sensitivity outweighs transient immunity needs. |
| ISO6741FDWR | 4-channel, 50 Mbps, 5000 VRMS, SOIC-16 (NB), no fail-safe option | Lower data rate limits SPI clock speed; no default-low configuration; not AEC-Q100 qualified | Suitable for legacy 25 MHz SPI interfaces in non-safety-critical PLC I/O modules. |
Compared with ADUM4401BRWZ and ISO6741FDWR, SI86S641FE-IS2R offers higher data rate, certified reinforced insulation, automotive qualification, and configurable fail-safe behavior - making it the only choice for next-generation EV battery controllers requiring ASIL-B compliance and 150 Mbps isolated communication.
Availability
SI86S641FE-IS2R is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and isolated ADC interfaces requiring stable component supply across automotive and industrial production programs.
Supply support for SI86S641FE-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.
The Si86S6xx family was designed specifically for high-reliability, high-speed galvanic isolation in automotive electrification and industrial automation - emphasizing reinforced safety, ultra-low jitter, and robust CMTI performance.
FAQ
What is the isolation rating and safety certification status of SI86S641FE-IS2R?
SI86S641FE-IS2R is rated for 6000 VRMS isolation per UL 1577 (1 minute) and carries reinforced insulation certification per VDE 60747-17, CSA 62368-1/60601-1, and CQC GB4943.1. These certifications are fully documented in Skyworks' official safety reports and apply directly to the SI86S641FE-IS2R part number in its WB SOIC-16 package.
Does SI86S641FE-IS2R support fail-safe operation, and how is it configured?
Yes, SI86S641FE-IS2R is factory-configured for default-low fail-safe operation. When side-A supply (VDD1) is unpowered but side-B supply (VDD2) remains active, all B1–B4 outputs hold low. This behavior is hard-coded per ordering option and does not require external configuration pins or firmware setup.
What is the purpose of the EN1 and EN2 pins on SI86S641FE-IS2R?
EN1 and EN2 are active-high enable inputs controlling output driver states on their respective sides. When EN1 is low, B1–B4 outputs enter high-impedance; when EN2 is low, A1–A4 outputs go high-Z. This allows dynamic bus arbitration and power-gating in multi-master isolated systems without changing signal direction.
Can SI86S641FE-IS2R be used in automotive applications, and what qualifications does it hold?
Yes, SI86S641FE-IS2R is AEC-Q100 Grade 1 qualified (–40 to +125 °C) and manufactured using automotive-specific process flows with AIAG-compliant PPAP documentation. It is explicitly listed for onboard chargers, battery management systems, and traction inverters in Skyworks' official automotive applications guidance.
What is the input deglitch filter specification for SI86S641FE-IS2R, and how does it affect signal integrity?
SI86S641FE-IS2R includes a 36 ns input deglitch filter on all A1–A4 channels. Any input pulse narrower than 36 ns is rejected, eliminating false triggers from EMI-induced glitches in motor drive or SMPS environments while adding only 36 ns deterministic delay to valid edges.
SI86S641FE-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):
- 150kV/µs
- Data Rate:
- 10Mbps
- 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:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI86S641FE-IS2R FAQ
1.How can I place an order for SI86S641FE-IS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S641FE-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 SI86S641FE-IS2R reliable?
The price and inventory of SI86S641FE-IS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S641FE-IS2R is usually 5 days.
3.What payment methods are accepted for SI86S641FE-IS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S641FE-IS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S641FE-IS2R?
SI86S641FE-IS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S641FE-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 SI86S641FE-IS2R?
For technical support, including SI86S641FE-IS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S641FE-IS2R requirements.
6.How does Aetrix verify that SI86S641FE-IS2R is sourced from the original manufacturer or authorized distributors?
All SI86S641FE-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 SI86S641FE-IS2R meets industry standards.
7.What is the process for return or replacement of SI86S641FE-IS2R?
All SI86S641FE-IS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S641FE-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 SI86S641FE-IS2R part is unused and in its original packaging.
Return procedure for SI86S641FE-IS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S641FE-IS2R Tags
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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
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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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