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Skyworks Solutions Inc. SI86S642BE-IS2R
- Part No.:
- SI86S642BE-IS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86S642BE-IS2R.pdf
- Description:
- 6.0 KVRMS ISOLATOR, 4 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:4,223
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Product details
Overview
SI86S642BE-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 per UL 1577. Designed for isolated ADC/DAC interfaces and motor control gate drivers in industrial inverters.
For engineers reviewing the SI86S642BE-IS2R datasheet, SI86S642BE-IS2R pinout, SI86S642BE-IS2R application, or SI86S642BE-IS2R equivalent, this page delivers verified specifications, fail-safe output configuration, IEC 60747-17 compliance, and automotive-grade AEC-Q100 qualification - all confirmed for the exact SI86S642BE-IS2R ordering part number.
Technical Context
The SI86S642BE-IS2R implements RF-based on/off keying modulation across its isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture includes Schmitt-trigger inputs with 0.15×VDD hysteresis and CMOS thresholds, supporting dual-supply operation from 2.25 V to 5.5 V on both sides.
It features tri-state outputs controlled by EN1/EN2 pins, selectable fail-safe mode (default high or low), and input deglitch filtering with 36 ns pulse rejection - all confirmed for the SI86S642BE-IS2R variant per datasheet Figure 2 and Section 3.4.5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - enables high-speed serial links like isolated SPI and QSPI without timing bottlenecks. |
| Propagation delay | 10 ns typical - ensures tight timing alignment in real-time motor control and power converter feedback loops. |
| Isolation rating | 6000 VRMS (1 min, UL 1577) - meets reinforced insulation requirements for 1000 VAC industrial bus systems. |
| Supply voltage | 2.25–5.5 V per side - supports interoperability with 3.3 V microcontrollers and 5 V analog front-ends. |
| Operating temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial ambient environments. |
| CMTI | 100 kV/µs minimum - prevents false triggering during fast-switching transients in SiC/GaN inverter designs. |
| AEC-Q100 grade | Qualified to Grade 1 - validated for automotive onboard chargers and battery management systems. |
Pinout & Package
SI86S642BE-IS2R is housed in a WB SOIC-16 package (wide-body, 10.3 mm creepage), providing 6000 VRMS isolation capability. Pin assignments follow the Si86S64x family layout shown in Figure 2 of the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A supply | Power and ground for input-side logic (e.g., MCU GPIO or ADC interface). |
| A1–A4 | Side A digital I/O | Four unidirectional or bidirectional channels driven from controller side. |
| EN1 | Side A output enable | Active-high control to place A-side outputs in high-impedance state. |
| VDD2, GND2 | Side B supply | Independent power domain for isolated peripherals (e.g., gate drivers or sensors). |
| B1–B4 | Side B digital I/O | Four isolated output channels referenced to VDD2/GND2. |
| EN2 | Side B output enable | Active-high control to tri-state B-side outputs independently. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture enables immediate data transmission at power-on - eliminates boot delay in safety-critical systems. |
| Selectable fail-safe mode | Ordering option defines default output state (high or low) during VDD1 loss - critical for safe shutdown in motor drives. |
| Input deglitch filter | 36 ns pulse rejection on all inputs - suppresses EFT-induced glitches without adding external RC networks. |
| Tri-state outputs | EN1/EN2 pins provide per-side output disable - enables bus sharing and hot-swap compatibility in modular systems. |
| Reinforced insulation | IEC 60747-17 and UL 1577 certified - satisfies reinforced isolation requirements for medical (60601-1) and industrial (62368-1) end equipment. |
Applications
| Industrial Motor Control | Isolated ADC Interface |
|---|---|
|
Use Scenario: Gate driver signals for 3-phase IGBT/SiC modules in variable-frequency drives. IC Role / Device Role / Timing Role: Isolates PWM control signals from high-voltage power stage while preserving <10 ns edge fidelity. Use Value: Enables precise dead-time control and prevents shoot-through faults via CMTI >100 kV/µs immunity. |
Use Scenario: SPI communication between isolated ADC (e.g., AD7403) and host MCU in energy metering. IC Role / Device Role / Timing Role: Provides galvanic isolation for SCLK, MOSI, MISO, and CS lines at up to 150 Mbps. Use Value: Maintains full-resolution 16-bit sampling integrity without clock skew or jitter accumulation. |
| Onboard Charger (OBC) | Battery Management System (BMS) |
|
Use Scenario: Signal isolation between AC/DC controller and DC/DC secondary side in EV charging units. IC Role / Device Role / Timing Role: Transfers fault status, enable commands, and telemetry across 6000 VRMS barrier. Use Value: Meets reinforced insulation requirements per IEC 62109 and supports AEC-Q100 Grade 1 reliability. |
Use Scenario: Isolating cell voltage monitoring ICs (e.g., LTC6813) from main BMS controller in 800 V battery packs. IC Role / Device Role / Timing Role: Carries daisy-chain UART or SPI data across high-potential barriers between modules. Use Value: Ensures accurate cell balancing decisions despite common-mode transients exceeding 10 kV/µs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM4402BRIZ | 4-channel, 100 Mbps, 2.5 kVRMS isolation, no deglitch filter, non-AEC-Q100. | Limited to industrial automation where 6000 VRMS and automotive qualification are not required. | Choose when cost sensitivity outweighs reinforced isolation and automotive compliance needs. |
| ISO6742FDWR | 4-channel, 50 Mbps, 5000 VRMS, no fail-safe selection, lower CMTI (85 kV/µs). | Suitable for non-safety-critical isolated sensing but not for high-dV/dt motor control. | Prefer for legacy designs already using TI's ISO67xx family and where 150 Mbps bandwidth is unnecessary. |
Compared with ADUM4402BRIZ and ISO6742FDWR, the SI86S642BE-IS2R delivers higher isolation voltage, guaranteed 150 Mbps operation, AEC-Q100 qualification, and factory-configurable fail-safe behavior - making it uniquely suited for next-generation EV power electronics and industrial inverters requiring long-term reliability under harsh transients.
Availability
SI86S642BE-IS2R is available at Aetrix Electronics and suitable for industrial motor control, isolated ADC/DAC interfaces, and automotive onboard chargers requiring stable component supply across extended product lifecycles.
Supply support for SI86S642BE-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 engineered specifically for high-reliability isolation in automotive traction inverters and industrial power systems - emphasizing reinforced safety certification, ultra-low propagation delay, and transient immunity beyond 100 kV/µs.
FAQ
What is the isolation voltage rating of the SI86S642BE-IS2R?
The SI86S642BE-IS2R is rated for 6000 VRMS isolation per UL 1577 for one minute, with reinforced insulation certified to IEC 60747-17. This rating applies specifically to the WB SOIC-16 package used in the SI86S642BE-IS2R variant and enables use in 1000 VAC industrial bus systems and automotive 800 V battery architectures.
Does the SI86S642BE-IS2R support fail-safe output configuration?
Yes - the SI86S642BE-IS2R includes a factory-selectable fail-safe mode that determines whether outputs default to logic high or low when Side A supply (VDD1) is unpowered but Side B remains active. This behavior is defined at order time and is confirmed for the SI86S642BE-IS2R part number per Table 4 and Section 3.3 of the datasheet.
What is the purpose of the EN1 and EN2 pins on the SI86S642BE-IS2R?
The EN1 and EN2 pins are active-high enable inputs that place all outputs on Side A or Side B, respectively, into a high-impedance (tri-state) condition. This allows shared-bus topologies and dynamic channel disabling without external switches - a feature verified for SI86S642BE-IS2R in Figure 2 and Table 1 of the datasheet.
Is the SI86S642BE-IS2R qualified for automotive applications?
Yes - the SI86S642BE-IS2R is AEC-Q100 qualified (Grade 1, –40 °C to +125 °C), manufactured using automotive-specific process flows, and supported with AIAG-compliant PPAP documentation. It is explicitly listed for automotive applications including onboard chargers, battery management systems, and traction inverters in the datasheet's front-page application list.
What packaging and creepage does the SI86S642BE-IS2R use?
The SI86S642BE-IS2R uses a WB SOIC-16 package (wide-body, 10.3 mm minimum creepage), which enables its 6000 VRMS isolation rating. This package is distinct from NB SOIC-16 and QSOP-16 variants and is specified for SI86S642BE-IS2R in the "RoHS-compliant packages" section and Figure 2 of the datasheet.
SI86S642BE-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:
- 2/2
- 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
SI86S642BE-IS2R FAQ
1.How can I place an order for SI86S642BE-IS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S642BE-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 SI86S642BE-IS2R reliable?
The price and inventory of SI86S642BE-IS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S642BE-IS2R is usually 5 days.
3.What payment methods are accepted for SI86S642BE-IS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S642BE-IS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S642BE-IS2R?
SI86S642BE-IS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S642BE-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 SI86S642BE-IS2R?
For technical support, including SI86S642BE-IS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S642BE-IS2R requirements.
6.How does Aetrix verify that SI86S642BE-IS2R is sourced from the original manufacturer or authorized distributors?
All SI86S642BE-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 SI86S642BE-IS2R meets industry standards.
7.What is the process for return or replacement of SI86S642BE-IS2R?
All SI86S642BE-IS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S642BE-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 SI86S642BE-IS2R part is unused and in its original packaging.
Return procedure for SI86S642BE-IS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S642BE-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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