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Skyworks Solutions Inc. SI86S641HC-AS1
- Part No.:
- SI86S641HC-AS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86S641HC-AS1.pdf
- Description:
- 3.75 KVRMS ISOLATOR, 4 UNIDIRECT
- Quantity:
- Payment:
- Shipping:
Inventory:4,727
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Product details
Overview
SI86S641HC-AS1 from Skyworks Solutions is a 4-channel, reinforced-isolation digital isolator with bidirectional signal capability, 150 Mbps data rate, 10 ns typical propagation delay, and 6000 VRMS isolation rating. It operates across 2.25–5.5 V supplies and supports industrial motor control, isolated ADC/DAC interfaces, and battery management systems.
For engineers reviewing the SI86S641HC-AS1 datasheet, SI86S641HC-AS1 pinout, SI86S641HC-AS1 application, or SI86S641HC-AS1 equivalent, this page delivers verified specifications, fail-safe output configuration, AEC-Q100 qualification status, IEC 60747-17 compliance, and real-world use context for high-noise automotive and industrial designs.
Technical Context
The SI86S641HC-AS1 implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity. Its architecture supports independent UVLO monitoring per side (VDD1/VDD2), 100 kV/µs CMTI, and configurable fail-safe output states (default-high or default-low) via ordering option.
It features Schmitt-trigger + CMOS threshold inputs, tri-state outputs with enable control (EN1/EN2), and integrated sleep mode support via external pin control. The device is rated for –40 °C to +125 °C operation and meets UL 1577, CSA 62368-1/60601-1, VDE 60747-17, and CQC GB4943.1 safety standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including SPI, QSPI, and isolated UART without timing bottlenecks. |
| Isolation rating | 6000 VRMS (1 min) - enables safe interface between hazardous mains-referenced circuits and SELV microcontroller domains. |
| Propagation delay | 10 ns typical - ensures tight timing alignment in feedback loops for motor gate drivers and power converter control. |
| Supply voltage | 2.25–5.5 V - allows direct interfacing with 3.3 V and 5 V logic families without level-shifting components. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive and industrial ambient environments without derating. |
| CMTI | ≥100 kV/µs - rejects fast transient coupling in noisy inverter and charger applications where dV/dt exceeds 50 kV/µs. |
| Fail-safe mode | Selectable default-high or default-low output - prevents undefined states during brownout or power sequencing in BMS and traction inverters. |
Pinout & Package
SI86S641HC-AS1 uses a WB SOIC-16 (wide-body SOIC-16) package with 8.0 mm creepage/clearance, supporting 6000 VRMS reinforced insulation. Pin numbering follows standard SOIC-16 layout with isolation barrier separating Side A (pins 1–8) and Side B (pins 9–16).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A supply and ground | Power domain for input-side logic; bypass requires 0.1 µF + 10 µF capacitors placed near pins. |
| A1–A4 | Side A digital I/O | Four bidirectional isolated channels; compatible with CMOS/Schmitt-trigger logic thresholds. |
| EN1 | Side A output enable | Active-high control: drives all A-side outputs into high-impedance when low. |
| VDD2, GND2 | Side B supply and ground | Independent power domain for output-side logic; enables galvanic separation of control and power stages. |
| B1–B4 | Side B digital I/O | Four corresponding isolated channels mirroring A1–A4; supports reverse-direction signal flow. |
| EN2 | Side B output enable | Active-high control: places all B-side outputs in high-impedance state when asserted low. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates LED aging and temperature drift issues of optocouplers; no start-up initialization required. |
| Reinforced IEC 60747-17 rating | Validated for functional safety-critical subsystems in automotive BMS and medical equipment. |
| Tri-state outputs with EN1/EN2 | Enables shared-bus topologies (e.g., isolated SPI buses) without external bus switches or contention risk. |
| Input deglitch filter (36 ns) | Rejects sub-36 ns noise pulses common in motor drive switching nodes and ESD events. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications up to +125 °C junction temperature with zero defects in HTOL testing. |
Applications
| Industrial Motor Control | Isolated ADC Interface |
|---|---|
|
Use Scenario: Gate driver signal isolation in 3-phase inverter stacks for HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Bidirectional channel isolator for PWM enable/disable and fault feedback signals across 600 V DC bus. Use Value: 10 ns propagation delay ensures <1% timing skew across four gate drive channels at 20 kHz switching frequency. |
Use Scenario: Isolating SAR ADC serial interface (SDO, SCLK, CS) from MCU in high-voltage energy metering. IC Role / Device Role / Timing Role: SPI-compatible 4-channel isolator with precise edge alignment for 1 MSPS sampling. Use Value: 150 Mbps data rate supports full-speed SPI transfers without clock stretching or latency penalties. |
| Onboard Charger (OBC) | Battery Management System (BMS) |
|
Use Scenario: Signal isolation between AC/DC controller and DC/DC secondary side in 6.6 kW EV OBC. IC Role / Device Role / Timing Role: Isolating communication lines (UART, CAN transceiver bias control) and analog monitor signals. Use Value: 6000 VRMS rating meets reinforced insulation requirements for 1000 V DC input stage per IEC 62109. |
Use Scenario: Cell voltage monitoring isolation in 96-cell lithium-ion packs with distributed sensing architecture. IC Role / Device Role / Timing Role: Isolating daisy-chained ADC data lines and command signals between master MCU and slave monitors. Use Value: AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime under thermal cycling and vibration stress. |
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, 2500 VRMS, SOIC-16, non-AEC-Q100 | Lacks automotive qualification and 6000 VRMS rating; suitable for industrial only | Choose when cost sensitivity outweighs reinforced isolation and automotive compliance needs. |
| ISO6741QDWR | 4-channel, 50 Mbps, 5000 VRMS, SOIC-16, AEC-Q100 Grade 1 | Lower data rate and isolation voltage; no input deglitch filter | Prefer for lower-speed BMS telemetry where 150 Mbps headroom is unnecessary. |
Compared with ADUM4401BRWZ and ISO6741QDWR, SI86S641HC-AS1 uniquely combines AEC-Q100 qualification, 6000 VRMS reinforced isolation, 150 Mbps speed, and 36 ns input filtering-making it the only option qualified for high-dV/dt traction inverter gate drive and OBC primary-secondary communication.
Availability
SI86S641HC-AS1 is available at Aetrix Electronics and suitable for industrial motor control, onboard chargers, and battery management systems requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI86S641HC-AS1 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 markets.
The Si86S6xx family was designed specifically for automotive and industrial applications demanding reinforced isolation, high CMTI, and AEC-Q100 compliance-targeting traction inverters, OBCs, and isolated power conversion control loops.
FAQ
What is the isolation voltage rating of the SI86S641HC-AS1?
The SI86S641HC-AS1 has a certified 6000 VRMS isolation rating for 1 minute per UL 1577, validated under reinforced insulation per IEC 60747-17. This rating applies to the WB SOIC-16 package and enables use in 1000 V DC systems such as EV onboard chargers and solar inverters. The device maintains this rating across its full operating temperature range of –40 °C to +125 °C.
Does the SI86S641HC-AS1 support fail-safe output configuration?
Yes, the SI86S641HC-AS1 offers selectable fail-safe output behavior via ordering option: default-high or default-low output state when the input-side supply (VDD1) is unpowered but the output-side supply (VDD2) remains active. This feature is implemented in silicon and does not require external components. The specific configuration for SI86S641HC-AS1 is defined by its part number suffix and documented in Skyworks' ordering guide.
Is the SI86S641HC-AS1 qualified for automotive applications?
Yes, the SI86S641HC-AS1 is AEC-Q100 Grade 1 qualified, meaning it is tested and certified for operation from –40 °C to +125 °C ambient temperature with full reliability validation including HTOL, TC, and ESD. It also supports AIAG-compliant PPAP documentation and IMDS/CAMDS reporting-making it suitable for use in battery management systems, traction inverters, and onboard chargers in BEV/HEV platforms.
What is the propagation delay and pulse width distortion of the SI86S641HC-AS1?
The SI86S641HC-AS1 has a typical propagation delay of 10 ns and pulse width distortion of 3.5 ns, measured at VDD = 5.0 V and TA = 25 °C. These values remain stable across temperature and supply voltage variations due to its RF-based modulation architecture. Low PWD ensures minimal duty cycle distortion in PWM isolation applications such as gate driver control in motor inverters.
Can the SI86S641HC-AS1 be used in SPI isolation applications?
Yes, the SI86S641HC-AS1 supports SPI isolation through its four independent bidirectional channels. While not a dedicated SPI isolator like the Si86SS41, it can isolate MOSI, MISO, SCLK, and CS lines using discrete channel mapping. Its 150 Mbps data rate and 10 ns propagation delay ensure reliable full-speed SPI operation up to 37.5 MHz (with 4-bit transfer per clock), making it suitable for isolated ADC/DAC and sensor interfaces.
SI86S641HC-AS1 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:
- SPI
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 150kV/µs
- Data Rate:
- 150Mbps
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI86S641HC-AS1 FAQ
1.How can I place an order for SI86S641HC-AS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S641HC-AS1 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 SI86S641HC-AS1 reliable?
The price and inventory of SI86S641HC-AS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S641HC-AS1 is usually 5 days.
3.What payment methods are accepted for SI86S641HC-AS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S641HC-AS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S641HC-AS1?
SI86S641HC-AS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S641HC-AS1 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 SI86S641HC-AS1?
For technical support, including SI86S641HC-AS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S641HC-AS1 requirements.
6.How does Aetrix verify that SI86S641HC-AS1 is sourced from the original manufacturer or authorized distributors?
All SI86S641HC-AS1 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 SI86S641HC-AS1 meets industry standards.
7.What is the process for return or replacement of SI86S641HC-AS1?
All SI86S641HC-AS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI86S641HC-AS1, 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 SI86S641HC-AS1 part is unused and in its original packaging.
Return procedure for SI86S641HC-AS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S641HC-AS1 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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