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Skyworks Solutions Inc. SI86S641HE-AS2R
- Part No.:
- SI86S641HE-AS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86S641HE-AS2R.pdf
- Description:
- 6.0 KVRMS ISOLATOR, 4 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:2,018
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Product details
Overview
SI86S641HE-AS2R 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 on both sides and supports fail-safe default-high output mode. It is used in isolated motor control gate drivers and battery management system communication interfaces.
For engineers reviewing the SI86S641HE-AS2R datasheet, SI86S641HE-AS2R pinout, SI86S641HE-AS2R application, or SI86S641HE-AS2R equivalent, this page delivers verified electrical specs, side-A/side-B pin mapping, automotive-grade AEC-Q100 qualification status, IEC 60747-17 reinforced insulation compliance, and real-world use context for industrial and EV traction inverter designs.
Technical Context
The SI86S641HE-AS2R implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity. Its architecture supports independent undervoltage lockout (UVLO) and reset circuitry per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.
It features Schmitt-trigger + CMOS threshold inputs, tri-state outputs with EN1/EN2 enable pins, and selectable fail-safe mode (default high). Input deglitch filtering with 36 ns rejection window is included, and transient immunity exceeds 100 kV/µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, isolated ADC/DAC interfaces, and real-time motor control feedback loops. |
| Propagation delay | 10 ns typical - enables tight timing budgets in closed-loop power electronics control systems. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements for 1000 VAC+ industrial and automotive high-voltage domains. |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive applications including onboard chargers and traction inverters. |
| CMTI | >100 kV/µs - prevents false triggering in noisy switching environments like SiC/GaN power stages. |
| AEC-Q100 grade | Grade 1 - certified for automotive use with full PPAP documentation and IMDS/CAMDS support. |
Pinout & Package
SI86S641HE-AS2R uses a WB SOIC-16 (wide-body SOIC-16) package with creepage/clearance optimized for 6000 VRMS reinforcement. Pin numbering follows standard SOIC-16 layout (1–16, top view, pin 1 marked).
| 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 adjacent to pins. |
| A1–A4 | Side A digital I/O | Four isolated input/output channels on main side; compatible with CMOS/Schmitt-trigger logic levels. |
| EN1 | Side A output enable | Active-high control: drives all A-side outputs into high-impedance when low - enables shared-bus arbitration. |
| VDD2, GND2 | Side B supply and ground | Independent isolated power domain; supports different voltage rails than Side A (e.g., 3.3 V / 5 V split). |
| B1–B4 | Side B digital I/O | Four corresponding isolated channels on secondary side; electrically decoupled from Side A with >6 kVRMS barrier. |
| EN2 | Side B output enable | Active-high control for B-side outputs; allows independent tri-state control of isolated peripheral interface lines. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift issues of optocouplers; no start-up initialization required. |
| Fail-safe default-high mode | Ensures known logic state during VDD1 loss while VDD2 remains active - critical for safety-critical shutdown signaling. |
| 36 ns input deglitch filter | Rejects sub-36 ns noise pulses common in motor drive EMI environments without adding propagation delay to valid signals. |
| Tri-state outputs with EN1/EN2 | Enables multi-drop bus architectures on either side; avoids contention in isolated SPI or parallel control interfaces. |
| Reinforced IEC 60747-17 rating | Validated for functional safety applications up to SIL-3/PL e per IEC 61508 and ISO 13849-1 in end equipment. |
Applications
| Industrial Motor Control | Automotive Battery Management |
|---|---|
|
Use Scenario: Isolating gate driver signals and current-sense feedback in 3-phase inverter stacks for HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Bidirectional channel isolator providing timing-critical PWM edge transmission and fault reporting across 600–1200 VDC bus barriers. Use Value: 10 ns propagation delay ensures <1% duty-cycle error at 100 kHz switching; 6000 VRMS withstand enables compact PCB layout without air gaps. |
Use Scenario: Isolating cell voltage monitoring and balancing command signals between MCU and high-side battery monitor ICs in 400–800 V BEV packs. IC Role / Device Role / Timing Role: Four-channel isolator separating BMS controller domain from high-voltage battery domain with fail-safe default-high fault signaling. Use Value: AEC-Q100 Grade 1 qualification and –40 to +125 °C operation ensure reliability in under-chassis thermal environments. |
| Isolated Switch-Mode Power Supply | Traction Inverter Control |
|
Use Scenario: Providing primary-to-secondary feedback and synchronous rectifier control in 1–3 kW isolated DC/DC converters for server PSUs and telecom rectifiers. IC Role / Device Role / Timing Role: High-speed digital isolator replacing optocouplers in TL431-based feedback loops and SR gate drive paths. Use Value: 150 Mbps data rate supports fast transient response; 100 kV/µs CMTI prevents false triggering during MOSFET turn-on dv/dt events. |
Use Scenario: Isolating torque command, phase current feedback, and IGBT/SiC gate drive enable signals in dual-motor EV axle inverters. IC Role / Device Role / Timing Role: Reinforced isolator implementing functional safety path for ASIL-D torque limiting and overcurrent shutdown signals. Use Value: IEC 60747-17 reinforced insulation and UL 1577 certification satisfy ISO 26262 hardware-level safety requirements. |
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, non-AEC-Q100 | Lacks automotive qualification and 6000 VRMS rating; lower CMTI (75 kV/µs) | Use where cost sensitivity outweighs automotive compliance and higher isolation margin. |
| ISO6741FDWR | 4-channel, 50 Mbps, 5000 VRMS, SOIC-16, AEC-Q100 Grade 1 | Lower data rate limits SPI clock frequency; no deglitch filter option | Prefer for lower-speed BMS monitoring where extended temperature range and AEC-Q100 are essential but bandwidth is secondary. |
Compared with ADUM4401BRWZ and ISO6741FDWR, SI86S641HE-AS2R delivers the highest combination of speed (150 Mbps), isolation (6000 VRMS), noise immunity (100 kV/µs), and automotive readiness - making it optimal for next-generation EV traction and high-density industrial inverters requiring functional safety and compact layout.
Availability
SI86S641HE-AS2R is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management systems, and isolated switch-mode power supplies requiring stable component supply and long-term lifecycle assurance.
Supply support for SI86S641HE-AS2R 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 needs - delivering reinforced safety, high-speed performance, and AEC-Q100 compliance in a single-chip CMOS solution.
FAQ
What is the isolation voltage rating of SI86S641HE-AS2R?
SI86S641HE-AS2R is rated for 6000 VRMS isolation for 1 minute per UL 1577 and carries reinforced insulation certification per IEC 60747-17. This rating applies to the WB SOIC-16 package and enables use in 1000 VAC+ systems such as EV traction inverters and industrial AC drives. The device maintains this rating across its full operating temperature range of –40 to +125 °C.
Does SI86S641HE-AS2R support fail-safe operation, and how is it configured?
Yes, SI86S641HE-AS2R supports selectable fail-safe mode - specifically default-high output - as indicated by the "H" in the part number suffix. When VDD1 is unpowered but VDD2 remains active, outputs B1–B4 remain logic high. This behavior is factory-configured and does not require external pull-ups or configuration registers, ensuring deterministic safety states during partial power loss.
What are the supply voltage requirements for SI86S641HE-AS2R?
SI86S641HE-AS2R operates with independent 2.25–5.5 V supplies on both sides (VDD1 and VDD2). Each side requires local 0.1 µF ceramic + 10 µF bulk bypass capacitors. The wide voltage range allows direct interfacing with 3.3 V microcontrollers and 5 V analog circuits without level translation, reducing BOM count and layout complexity in mixed-voltage systems.
How does the 36 ns input deglitch filter function in SI86S641HE-AS2R?
The SI86S641HE-AS2R includes a hardware deglitch filter that rejects input pulses shorter than 36 ns - a feature confirmed in the datasheet for the Si86S64x family. This eliminates false triggering from EMI-induced spikes in motor drive or power converter environments, while preserving signal integrity for valid edges. Filter delay is fixed and does not affect propagation delay specification.
Is SI86S641HE-AS2R qualified for automotive applications?
Yes, SI86S641HE-AS2R is AEC-Q100 Grade 1 qualified (–40 to +125 °C), with full AIAG-compliant PPAP documentation, IMDS/CAMDS material declarations, and automotive-specific manufacturing flow validation. It is approved for use in onboard chargers, battery management systems, charging stations, and traction inverters in hybrid and battery electric vehicles.
SI86S641HE-AS2R 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:
- SPI
- Isolated Power:
- Yes
- 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:
- 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
SI86S641HE-AS2R FAQ
1.How can I place an order for SI86S641HE-AS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S641HE-AS2R 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 SI86S641HE-AS2R reliable?
The price and inventory of SI86S641HE-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S641HE-AS2R is usually 5 days.
3.What payment methods are accepted for SI86S641HE-AS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S641HE-AS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S641HE-AS2R?
SI86S641HE-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S641HE-AS2R 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 SI86S641HE-AS2R?
For technical support, including SI86S641HE-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S641HE-AS2R requirements.
6.How does Aetrix verify that SI86S641HE-AS2R is sourced from the original manufacturer or authorized distributors?
All SI86S641HE-AS2R 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 SI86S641HE-AS2R meets industry standards.
7.What is the process for return or replacement of SI86S641HE-AS2R?
All SI86S641HE-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S641HE-AS2R, 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 SI86S641HE-AS2R part is unused and in its original packaging.
Return procedure for SI86S641HE-AS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S641HE-AS2R 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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