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Skyworks Solutions Inc. SI86S642BC-IS1
- Part No.:
- SI86S642BC-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86S642BC-IS1.pdf
- Description:
- 3.75 KVRMS ISOLATOR, 4 UNIDIRECT
- Quantity:
- Payment:
- Shipping:
Inventory:4,640
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Product details
Overview
SI86S642BC-IS1 from Skyworks Solutions is a 4-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 and supports fail-safe default-low output mode for industrial motor control interfaces.
For engineers reviewing the SI86S642BC-IS1 datasheet, SI86S642BC-IS1 pinout, SI86S642BC-IS1 application, or SI86S642BC-IS1 equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade AEC-Q100 qualification, exact IEC 60747-17 reinforced insulation compliance, and two rigorously cross-referenced alternative part options.
Technical Context
The SI86S642BC-IS1 implements RF-based on/off keying modulation across its isolation barrier-eliminating startup initialization and enabling deterministic timing without clock recovery circuits. Its architecture includes Schmitt-trigger + CMOS threshold inputs, tri-state outputs with enable control (EN1/EN2), and selectable fail-safe output state during unpowered conditions.
This variant belongs to the Si86S6xx family's 4-channel forward/reverse configuration (A1–A4/B1–B4), with no direction control pin (unlike Si86SQ44) and no sleep mode pin (unlike Si86SM42). It supports simultaneous high-speed bidirectional communication between isolated domains while maintaining 100 kV/µs CMTI and –40 °C to +125 °C operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including isolated SPI and digital feedback loops. |
| Propagation delay | 10 ns typical - enables tight timing closure in real-time motor control and power converter gate drive timing paths. |
| Isolation rating | 6000 VRMS - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for safety-critical industrial and automotive systems. |
| Supply voltage | 2.25–5.5 V - allows direct interfacing with 3.3 V and 5 V logic domains without level-shifting circuitry. |
| Operating temperature | –40 °C to +125 °C - qualified for under-hood automotive applications and industrial environments with wide thermal swings. |
| CMTI | ≥100 kV/µs - ensures robust noise immunity against fast transients in high-power switching systems like inverters and SMPS. |
| AEC-Q100 grade | Qualified - confirms suitability for automotive onboard chargers, battery management, and traction inverter subsystems. |
Pinout & Package
SI86S642BC-IS1 is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance optimized for 6000 VRMS reinforced insulation. Pin layout follows Figure 2 (Si86S64x/L4x) in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A supply pair | Power and ground for input-side logic (A1–A4 and EN1); must be bypassed with 0.1 µF + 10 µF capacitors. |
| A1–A4 | Digital I/O (Side A) | Four isolated input/output channels on primary side; support bidirectional data flow with configurable fail-safe state. |
| EN1 | Active-high enable | Tri-states all Side A outputs (A1–A4) when low; used for system-level output control or power sequencing coordination. |
| VDD2, GND2 | Side B supply pair | Power and ground for output-side logic (B1–B4 and EN2); independent biasing enables galvanic isolation of power domains. |
| B1–B4 | Digital I/O (Side B) | Four isolated input/output channels on secondary side; electrically decoupled from Side A with full 6000 VRMS withstand capability. |
| EN2 | Active-high enable | Tri-states all Side B outputs (B1–B4) when low; enables synchronized shutdown or low-power mode entry on both sides. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot delay and configuration registers - output becomes valid within 0.3 ms of VDD stabilization. |
| Fail-safe output mode | Default-low output option (indicated by "B" suffix in OPN) ensures safe state during power loss or undervoltage on Side A. |
| High electromagnetic immunity | 100 kV/µs common-mode transient immunity prevents data corruption in noisy motor drive and inverter environments. |
| Tri-state outputs with enable | EN1/EN2 pins allow dynamic bus sharing and prevent contention in multi-master isolated systems without external logic. |
| Reinforced insulation certification | UL 1577, VDE 60747-17, CSA 62368-1, and CQC GB4943.1 approvals validate use in medical and industrial safety-critical designs. |
Applications
| Industrial Motor Control | Isolated ADC/DAC Interface |
|---|---|
|
Use Scenario: Isolating PWM gate drive signals and current-sense feedback between MCU and IGBT/SiC half-bridge in servo drives. IC Role / Device Role / Timing Role: Bidirectional digital isolator providing timing-critical, low-jitter signal transfer across isolation barrier for real-time closed-loop control. Use Value: 10 ns propagation delay and 150 Mbps bandwidth ensure sub-microsecond response in field-oriented control (FOC) algorithms. |
Use Scenario: Separating microcontroller domain from high-voltage analog front-end in precision isolated data acquisition systems. IC Role / Device Role / Timing Role: Digital isolator transmitting serial configuration and conversion result data between isolated ADC/DAC and host processor. Use Value: Schmitt-trigger inputs reject noise on long PCB traces; 6000 VRMS rating enables direct connection to ±1000 V measurement circuits. |
| Onboard Charger (OBC) | Traction Inverter Control |
|
Use Scenario: Isolating digital control signals between AC/DC controller and DC/DC stage in EV onboard chargers. IC Role / Device Role / Timing Role: Reinforced isolator carrying fault reporting, enable commands, and status telemetry across safety barrier per ISO 6469-3. Use Value: AEC-Q100 qualification and –40 °C to +125 °C operation guarantee reliability in under-hood thermal cycling and vibration environments. |
Use Scenario: Transmitting isolated gate drive enable/disable and fault feedback between vehicle controller and inverter module in BEVs. IC Role / Device Role / Timing Role: High-CMTI digital isolator ensuring robust communication despite dV/dt transients exceeding 50 kV/µs during IGBT switching. Use Value: 100 kV/µs CMTI margin exceeds automotive inverter requirements, preventing false triggering during high-power switching events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2402BRWZ | 4-channel, 25 Mbps max data rate; 5000 VRMS isolation; SOIC-16 package; no AEC-Q100 qualification. | Limited to industrial automation where automotive qualification is not required; lower bandwidth restricts use in high-speed feedback loops. | Select when cost sensitivity outweighs speed and automotive compliance needs; verify CMTI (50 kV/µs) sufficiency for target noise environment. |
| ISO6742FDWR | 4-channel, 50 Mbps max data rate; 5000 VRMS; SOIC-16; AEC-Q100 Grade 1 (–40 °C to +125 °C); 100 kV/µs CMTI. | Matches SI86S642BC-IS1 in automotive temperature range and noise immunity but lacks 150 Mbps capability and 6000 VRMS rating. | Prefer for cost-constrained automotive modules where 50 Mbps suffices and 6000 VRMS is not mandated by system safety analysis. |
Compared with ADUM2402BRWZ and ISO6742FDWR, SI86S642BC-IS1 uniquely combines 150 Mbps speed, 6000 VRMS reinforced isolation, and AEC-Q100 qualification in a single device-enabling higher-bandwidth control architectures and simplified safety certification in EV power electronics.
Availability
SI86S642BC-IS1 is available at Aetrix Electronics and suitable for industrial motor control, EV onboard chargers, and isolated data acquisition systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for SI86S642BC-IS1 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 demanding industrial and automotive isolation requirements-delivering high-speed, low-latency, reinforced digital isolation with best-in-class CMTI and safety certifications.
FAQ
What is the isolation voltage rating of SI86S642BC-IS1?
SI86S642BC-IS1 is rated for 6000 VRMS isolation per UL 1577 for 1 minute, with reinforced insulation certified to IEC 60747-17. This rating applies to the WB SOIC-16 package and is validated across the full operating temperature range of –40 °C to +125 °C.
Does SI86S642BC-IS1 support fail-safe output behavior?
Yes, SI86S642BC-IS1 includes a selectable fail-safe mode. The "B" in the part number indicates default-low output behavior when Side A is unpowered but Side B remains powered-ensuring predictable, safe states during brownout or power sequencing events.
What is the maximum data rate supported by SI86S642BC-IS1?
SI86S642BC-IS1 supports data rates from DC up to 150 Mbps across all four channels. This performance is guaranteed over the full –40 °C to +125 °C temperature range and with supply voltages from 2.25 V to 5.5 V.
Is SI86S642BC-IS1 qualified for automotive applications?
Yes, SI86S642BC-IS1 is AEC-Q100 qualified and built using automotive-specific manufacturing flows. It supports automotive applications including onboard chargers, battery management systems, and traction inverters with full PPAP documentation support.
What package type does SI86S642BC-IS1 use?
SI86S642BC-IS1 uses a wide-body SOIC-16 (WB SOIC-16) package with enhanced creepage and clearance to meet 6000 VRMS reinforced insulation requirements. The package is RoHS-compliant and compatible with standard surface-mount assembly processes.
SI86S642BC-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 3750Vrms
- 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
SI86S642BC-IS1 FAQ
1.How can I place an order for SI86S642BC-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S642BC-IS1 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 SI86S642BC-IS1 reliable?
The price and inventory of SI86S642BC-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S642BC-IS1 is usually 5 days.
3.What payment methods are accepted for SI86S642BC-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S642BC-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S642BC-IS1?
SI86S642BC-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S642BC-IS1 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 SI86S642BC-IS1?
For technical support, including SI86S642BC-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S642BC-IS1 requirements.
6.How does Aetrix verify that SI86S642BC-IS1 is sourced from the original manufacturer or authorized distributors?
All SI86S642BC-IS1 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 SI86S642BC-IS1 meets industry standards.
7.What is the process for return or replacement of SI86S642BC-IS1?
All SI86S642BC-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI86S642BC-IS1, 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 SI86S642BC-IS1 part is unused and in its original packaging.
Return procedure for SI86S642BC-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S642BC-IS1 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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