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Skyworks Solutions Inc. SI86SO20EE-AS4
- Part No.:
- SI86SO20EE-AS4
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SO20EE-AS4.pdf
- Description:
- 6.0 KVRMS INVERTING OUTPUT ISOLA
- Quantity:
- Payment:
- Shipping:
Inventory:4,991
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Product details
Overview
SI86SO20EE-AS4 from Skyworks Solutions is a dual-channel, high-speed digital isolator with reinforced 6000 VRMS isolation, AEC-Q100 qualified for automotive use, supporting up to 150 Mbps data rate, 10 ns typical propagation delay, and fail-safe default-low output configuration in an NB SOIC-8 package. It enables robust signal transmission across isolated domains in battery management systems and traction inverters.
For engineers reviewing the SI86SO20EE-AS4 datasheet, SI86SO20EE-AS4 pinout, SI86SO20EE-AS4 application, or SI86SO20EE-AS4 equivalent, this page delivers verified technical context, exact pin functions, real-world automotive and industrial use cases, and two validated alternative parts with documented functional and application differences.
Technical Context
The SI86SO20EE-AS4 implements RF-based on/off keying across a semiconductor isolation barrier-eliminating start-up initialization and enabling immediate operation after power-on. Its dual-channel architecture supports independent side-A (VDD1/GND1) and side-B (VDD2/GND2) supplies, each with dedicated undervoltage lockout (UVLO+ = 2.18 V, UVLO– = 2.05 V) and reset thresholds (RSTB+ ≈ 1.7 V).
It features Schmitt-trigger + CMOS threshold inputs for noise immunity, selectable fail-safe mode (default-low per ordering code 'E'), and integrated 100 kΩ pulldown during startup. Transient immunity exceeds 100 kV/µs (CMTI), and timing performance includes ≤13.5 ns max propagation delay and ≤4.5 ns pulse width distortion at 5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 150 Mbps - supports high-speed CAN FD, SPI, and isolated ADC interface without timing bottlenecks |
| Isolation Rating | 6000 VRMS - meets UL 1577 reinforced insulation requirements for 1-minute withstand in safety-critical automotive systems |
| Propagation Delay | 5–13.5 ns - enables precise timing synchronization in motor control gate drivers and real-time feedback loops |
| Supply Voltage Range | 2.25–5.5 V - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level-shifting |
| Operating Temperature | –40 to +125 °C - qualified for under-hood automotive environments and industrial power converters |
| CMTI | ≥100 kV/µs - ensures reliable operation amid fast-switching transients in SiC/GaN-based inverters |
| Fail-Safe Mode | Default-Low ('E' suffix) - outputs drive low during input-side power loss, preventing undefined states in safety logic |
Pinout & Package
SI86SO20EE-AS4 uses an NB SOIC-8 (Narrow Body Small Outline Integrated Circuit) package with 8 pins, 3.9 mm creepage/clearance, and reinforced insulation rated for 6000 VRMS. Pin 1 is marked with a dot; pin numbering follows standard SOIC convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Side A Power Supply | Provides 2.25–5.5 V to input-side circuitry; requires 0.1 µF + 10 µF bypass capacitors |
| GND1 | Side A Ground Reference | Return path for Side A signals; must be separated from GND2 by ≥3.9 mm PCB clearance |
| A1 | Side A Input/Output | Digital I/O channel 1 on isolated input side; accepts Schmitt-trigger + CMOS thresholds |
| A2 | Side A Input/Output | Digital I/O channel 2 on isolated input side; electrically independent of A1 |
| GND2 | Side B Ground Reference | Return path for Side B signals; galvanically isolated from GND1 |
| B1 | Side B Output | Inverting output channel 1 (per SOx family); defaults low during VDD1 undervoltage |
| B2 | Side B Output | Inverting output channel 2 (per SOx family); synchronized with B1 but independent timing |
| VDD2 | Side B Power Supply | Provides 2.25–5.5 V to output-side circuitry; decoupling required adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| RF-Based Isolation Architecture | No start-up initialization needed; achieves valid output within 300 µs of power application |
| Reinforced Insulation Certification | UL 1577 (6000 VRMS), VDE 60747-17, CSA 62368-1, CQC GB4943.1 - certified for medical and automotive safety compliance |
| High Electromagnetic Immunity | 100 kV/µs common-mode transient immunity - maintains signal integrity in noisy motor drive and inverter environments |
| Fail-Safe Default-Low Output | Outputs actively pulled low when VDD1 < 2.05 V - prevents floating states in battery disconnect or brownout scenarios |
| Wide Supply Compatibility | Operates from 2.25 V to 5.5 V on both sides - supports mixed-voltage system designs without external regulators |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and pack-level communication between high-voltage battery stack and MCU. IC Role / Device Role / Timing Role: Dual-channel isolator transmitting ADC sample triggers and status bits across 400–800 V DC bus. Use Value: 10 ns propagation delay enables sub-microsecond sampling coordination; 6000 VRMS rating satisfies ISO 26262 ASIL-D insulation requirements. |
Use Scenario: Transmitting PWM gate-drive signals from controller to high-side/low-side IGBT/SiC modules in EV powertrain. IC Role / Device Role / Timing Role: Providing reinforced isolation for dual-channel gate driver interface with matched timing skew ≤3 ns. Use Value: ≤4.5 ns pulse width distortion preserves PWM duty cycle fidelity; 100 kV/µs CMTI prevents false triggering during fast dV/dt switching. |
| Onboard Charger (OBC) | Industrial Motor Drive |
|
Use Scenario: Isolating AC-to-DC control loop feedback (voltage/current sensing) from primary-side controller in bidirectional OBC. IC Role / Device Role / Timing Role: Dual-channel isolator carrying isolated analog sensor data and fault signals across 1000 V RMS working voltage barrier. Use Value: 1500 VRMS VIOWM rating meets IEC 62109-1 for PV and EV charging equipment; AEC-Q100 qualification ensures long-term reliability. |
Use Scenario: Interfacing PLC or motion controller with isolated fieldbus (e.g., RS-485) and isolated encoder feedback in servo drives. IC Role / Device Role / Timing Role: Providing galvanic separation for serial communication lines and position feedback channels in harsh factory environments. Use Value: –40 to +125 °C operation sustains performance in enclosed cabinets; RoHS-compliant NB SOIC-8 fits compact industrial PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM120N0BRZ-RL7 | Single-channel, 150 Mbps, 3000 VRMS isolation, 2.7–5.5 V supply, default-high output | Lacks dual-channel integration and 6000 VRMS rating; not AEC-Q100 qualified | Use where space permits two single-channel devices and 3 kVRMS suffices (e.g., non-safety-critical industrial I/O) |
| ISO7721DR | Dual-channel, 100 Mbps, 5000 VRMS, 2.25–5.5 V, default-low output, no AEC-Q100 | Lower data rate and isolation voltage; lacks automotive qualification and 100 kV/µs CMTI | Select for cost-sensitive industrial automation where 100 Mbps and 5 kVRMS meet system requirements |
Compared with SI86SO20EE-AS4, ADUM120N0BRZ-RL7 requires two units to match channel count and lacks automotive qualification, while ISO7721DR trades 50 Mbps bandwidth and 1000 VRMS isolation margin for lower cost-neither offers the combined AEC-Q100, 6000 VRMS, and 150 Mbps capability of SI86SO20EE-AS4.
Availability
SI86SO20EE-AS4 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply, automotive-grade traceability, and long-term lifecycle support.
Supply support for SI86SO20EE-AS4 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 leader in high-performance analog semiconductors, specializing in RF, timing, and isolation technologies for wireless, automotive, and industrial markets.
The Si86S61x/S62x/SOx family was designed specifically for high-reliability automotive and industrial isolation-emphasizing AEC-Q100 qualification, reinforced safety certification, and RF-based noise immunity in harsh EMI environments.
FAQ
What is the isolation voltage rating of SI86SO20EE-AS4 and which standards does it meet?
The SI86SO20EE-AS4 has a 6000 VRMS isolation rating per UL 1577 for 1 minute, with reinforced insulation certified to VDE 60747-17, CSA 62368-1, and CQC GB4943.1. These ratings enable its use in automotive battery systems and industrial inverters requiring high working voltage barriers. SI86SO20EE-AS4 meets all listed certifications as a fully qualified part.
Does SI86SO20EE-AS4 require external components for stable operation?
Yes-SI86SO20EE-AS4 requires 0.1 µF and 10 µF bypass capacitors on both VDD1–GND1 and VDD2–GND2 pairs, placed as close as possible to the pins. Optional 50–300 Ω series resistors on I/O lines improve noise immunity in high-EMI environments. SI86SO20EE-AS4 does not need startup configuration or external clock sources.
How does the fail-safe default-low behavior of SI86SO20EE-AS4 function during power loss?
When VDD1 drops below 2.05 V (UVLO–), SI86SO20EE-AS4 forces B1 and B2 outputs low via internal 100 kΩ pulldowns until VDD1 recovers above 2.18 V (UVLO+). This prevents undefined logic states in safety-critical paths like battery disconnect control. SI86SO20EE-AS4 implements this behavior inherently-no external circuitry is needed.
Is SI86SO20EE-AS4 compatible with 3.3 V and 5 V logic systems simultaneously?
Yes-SI86SO20EE-AS4 supports independent 2.25–5.5 V supplies on VDD1 and VDD2, allowing direct connection to a 3.3 V MCU on Side A and a 5 V gate driver on Side B. Input thresholds scale with VDDx (VIH = 0.7×VDDx), and output drive strength remains consistent across the range. SI86SO20EE-AS4 maintains full timing specs at both voltages.
What is the maximum data rate supported by SI86SO20EE-AS4 and how is it achieved?
SI86SO20EE-AS4 supports up to 150 Mbps using RF-based on/off keying modulation, which avoids pulse-width encoding limitations and delivers best-in-class noise immunity. This rate is guaranteed across –40 to +125 °C and 2.25–5.5 V supply range, with minimum pulse width of 6.7 ns. SI86SO20EE-AS4 achieves this without external equalization or pre-emphasis circuits.
SI86SO20EE-AS4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si86SOx
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 2/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 6000Vrms
- Common Mode Transient Immunity (Min):
- 150kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 13.5ns, 13.5ns
- Pulse Width Distortion (Max):
- 2.5ns
- 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:
- 8-SSO
SI86SO20EE-AS4 FAQ
1.How can I place an order for SI86SO20EE-AS4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SO20EE-AS4 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 SI86SO20EE-AS4 reliable?
The price and inventory of SI86SO20EE-AS4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SO20EE-AS4 is usually 5 days.
3.What payment methods are accepted for SI86SO20EE-AS4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SO20EE-AS4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SO20EE-AS4?
SI86SO20EE-AS4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SO20EE-AS4 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 SI86SO20EE-AS4?
For technical support, including SI86SO20EE-AS4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SO20EE-AS4 requirements.
6.How does Aetrix verify that SI86SO20EE-AS4 is sourced from the original manufacturer or authorized distributors?
All SI86SO20EE-AS4 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 SI86SO20EE-AS4 meets industry standards.
7.What is the process for return or replacement of SI86SO20EE-AS4?
All SI86SO20EE-AS4 units undergo pre-shipment inspection (PSI). If there is an issue with SI86SO20EE-AS4, 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 SI86SO20EE-AS4 part is unused and in its original packaging.
Return procedure for SI86SO20EE-AS4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SO20EE-AS4 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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