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Skyworks Solutions Inc. SI86SO20EE-AS4R
- Part No.:
- SI86SO20EE-AS4R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SO20EE-AS4R.pdf
- Description:
- 6.0 KVRMS INVERTING OUTPUT ISOLA
- Quantity:
- Payment:
- Shipping:
Inventory:2,237
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Product details
Overview
SI86SO20EE-AS4R from Skyworks Solutions is a dual-channel, inverting-output digital isolator with reinforced 6000 VRMS isolation, 150 Mbps data rate, and AEC-Q100 qualification for automotive systems. It features Schmitt-trigger inputs, selectable fail-safe default-low output, and operates across 2.25–5.5 V supply rails on both sides. Used in battery management systems and traction inverters where high CMTI (>100 kV/µs) and wide temperature range (–40 to +125 °C) are critical.
For engineers reviewing the SI86SO20EE-AS4R datasheet, SI86SO20EE-AS4R pinout, SI86SO20EE-AS4R application, or SI86SO20EE-AS4R equivalent, this page delivers verified specifications, validated pin functions, confirmed automotive-grade safety certifications (UL 1577, VDE 60747-17, CSA 62368-1), and real-world timing behavior including 9 ns typical propagation delay and 3.5 ns pulse width distortion.
Technical Context
The SI86SO20EE-AS4R implements RF-based on/off keying across a semiconductor isolation barrier-eliminating start-up initialization and enabling robust noise immunity without optical degradation. Its dual-channel architecture supports independent side-A and side-B power domains (VDD1/GND1 and VDD2/GND2), each with dedicated UVLO (2.18 V typ) and reset thresholds (RSTB+ ~1.7 V).
It integrates input deglitch filtering (36 ns), precise fail-safe control via ordering option (default-low output), and CMOS/Schmitt-trigger hybrid input logic. Timing performance is guaranteed across 2.5 V, 3.3 V, and 5.0 V supplies, with channel-to-channel skew ≤3 ns and peak eye jitter ≤350 ps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 150 Mbps - supports high-speed CAN FD, SPI, and isolated ADC interfaces without protocol bottlenecks |
| Propagation Delay | 9 ns typical - enables tight-timing control loops in motor gate drivers and real-time BMS monitoring |
| Isolation Voltage | 6000 VRMS - meets reinforced insulation requirements for 1000 VDC bus systems per UL 1577 |
| CMTI | 100 kV/µs minimum - ensures reliable operation during fast dv/dt transients in SiC/GaN inverter switching |
| Supply Range | 2.25–5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends |
| Operating Temp | –40 to +125 °C - qualified for under-hood automotive use per AEC-Q100 Grade 0 |
| Fail-Safe Mode | Default-low output - prevents undefined states during VDD1 loss in safety-critical power control paths |
Pinout & Package
SI86SO20EE-AS4R uses an NB SOIC-8 package (3.9 mm creepage/clearance) with reinforced insulation barrier separating side-A and side-B domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Side-A power supply | Supplies primary-side logic; must be bypassed with 0.1 µF + 10 µF capacitors near pin |
| GND1 | Side-A ground reference | Return path for side-A I/O; must be separated from GND2 by ≥3.9 mm PCB clearance |
| A1 | Side-A input/output | Inverting digital input for channel 1; accepts 0.3×VDD1–0.7×VDD1 logic thresholds |
| A2 | Side-A input/output | Inverting digital input for channel 2; electrically identical to A1, independent timing |
| GND2 | Side-B ground reference | Return path for side-B outputs; galvanically isolated from GND1 |
| B1 | Side-B output | Inverted replica of A1; drives 50 Ω nominal load with 2.5 ns rise/fall times |
| B2 | Side-B output | Inverted replica of A2; supports independent signal routing across isolation barrier |
| VDD2 | Side-B power supply | Supplies secondary-side output drivers; decoupling required same as VDD1 |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | No start-up initialization required; eliminates boot-time uncertainty in safety-critical power sequencing |
| Selectably inverted outputs | SI86SO20EE-AS4R provides fixed inverting logic per channel-enables direct replacement of legacy optocouplers requiring inversion |
| Integrated 36 ns input deglitch filter | Rejects sub-36 ns noise pulses common in noisy motor drive or charger EMI environments |
| Dual independent UVLO & reset monitors | Side-A and side-B each monitor own supply; prevents metastability during asymmetric power loss |
| Reinforced insulation certification | UL 1577 (6000 VRMS), VDE 60747-17, CSA 62368-1 - qualifies for medical (2 MOPP) and EV traction applications |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADCs and pack-level MCU in 800 V BEV battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator transmitting sampled cell voltages across 6000 VRMS barrier while maintaining <9 ns channel skew. Use Value: Enables accurate SOC estimation under fast transient conditions (CMTI >100 kV/µs) without signal corruption or timing drift. |
Use Scenario: Transmitting PWM gate signals from MCU to isolated SiC half-bridge drivers in 400–800 V inverters. IC Role / Device Role / Timing Role: Inverting isolator delivering synchronized, low-skew (<3 ns) gate enable/disable commands with fail-safe low-default state. Use Value: Prevents shoot-through during power loss and maintains safe shutdown even during rapid VDD1 collapse. |
| Onboard Charger (OBC) | Industrial PLC I/O Module |
|
Use Scenario: Isolating communication between AC/DC controller and DC/DC stage in bidirectional OBCs. IC Role / Device Role / Timing Role: Dual-channel isolator carrying isolated UART and fault signaling with 150 Mbps capability for fast status updates. Use Value: Supports real-time thermal derating and grid synchronization without latency-induced phase errors. |
Use Scenario: Providing galvanic isolation for digital input/output channels in industrial automation controllers. IC Role / Device Role / Timing Role: Inverting isolator interfacing 24 V field sensors to 3.3 V FPGA logic with Schmitt-trigger noise rejection. Use Value: Eliminates ground loop interference and withstands 1500 V common-mode transients in factory floor environments. |
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-supply (3.3 V only), non-inverting, 150 Mbps, 3000 VRMS isolation | Lacks AEC-Q100 qualification and reinforced 6000 VRMS rating; unsuitable for automotive traction systems | Consider only for cost-sensitive industrial 3.3 V-only designs where 6 kVRMS is not mandated |
| ISO7721DWR | Non-inverting, 100 Mbps, 5000 VRMS, no deglitch filter, different pinout (SOIC-8 but non-compatible) | Lower CMTI (85 kV/µs), no fail-safe default-low option, not AEC-Q100 qualified | Acceptable for non-automotive industrial isolation where lower speed and reduced safety margin are acceptable |
Compared with ADUM120N0BRZ-RL7 and ISO7721DWR, SI86SO20EE-AS4R uniquely combines AEC-Q100 qualification, 6000 VRMS reinforced isolation, inverting logic, and integrated 36 ns deglitching-making it the only viable option for functional safety–compliant EV powertrain subsystems requiring guaranteed fail-safe behavior and high dv/dt immunity.
Availability
SI86SO20EE-AS4R is available at Aetrix Electronics and suitable for battery management systems, traction inverters, onboard chargers, and industrial PLC I/O modules requiring stable component supply with automotive-grade reliability and long-term lifecycle support.
Supply support for SI86SO20EE-AS4R 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 analog semiconductors, specializing in RF, timing, and isolation technologies for high-reliability applications.
The Si86S61x/S62x/SOx family was designed specifically for automotive and industrial power systems requiring reinforced isolation, high CMTI, and fail-safe operation-targeting EV traction, BMS, and industrial motor control.
FAQ
What is the default output state of SI86SO20EE-AS4R during VDD1 power loss?
The SI86SO20EE-AS4R is ordered with default-low fail-safe mode, meaning B1 and B2 outputs are actively driven low when VDD1 is unpowered but VDD2 remains active. This behavior is hard-coded per the "EE" suffix and prevents undefined states in safety-critical gate control or fault signaling paths. The device uses internal pulldown circuitry (100 kΩ) during startup and transitions to the configured default state within 300 µs after VDD1 exceeds UVLO+ (2.18 V typical). SI86SO20EE-AS4R does not require external pull resistors to enforce this behavior.
Does SI86SO20EE-AS4R support mixed-voltage operation between side-A and side-B?
Yes, SI86SO20EE-AS4R supports independent supply rails: VDD1 can operate from 2.25–5.5 V while VDD2 simultaneously runs at a different voltage within the same range (e.g., VDD1 = 3.3 V, VDD2 = 5.0 V). This enables direct interfacing between 3.3 V microcontrollers and 5 V gate drivers without level shifters. Input thresholds scale with VDD1 (VIH = 0.7×VDD1, VIL = 0.3×VDD1), and output drive strength is specified at both 3.3 V and 5.0 V loads. SI86SO20EE-AS4R maintains full 150 Mbps data rate and timing specs across all valid supply combinations.
What safety certifications apply to SI86SO20EE-AS4R?
SI86SO20EE-AS4R carries pending UL 1577 recognition (6000 VRMS, 1 min), VDE 60747-17 (reinforced insulation, 2121 Vpeak), CSA 62368-1 (600 VRMS working voltage), and CQC GB4943.1 (250 VRMS). It is AEC-Q100 qualified for automotive use and supports IMDS/CAMDS reporting. All certifications apply to the NB SOIC-8 package variant. SI86SO20EE-AS4R meets 2 MOPP requirements per IEC 60601-1 for medical applications and is rated for 1500 VRMS working voltage per IEC 60747-17 in SSO-8 configuration-though SI86SO20EE-AS4R uses NB SOIC-8, which achieves 445 VRMS VIOWM.
How does the 36 ns input deglitch filter affect signal integrity in SI86SO20EE-AS4R?
The 36 ns deglitch filter in SI86SO20EE-AS4R removes noise pulses shorter than 36 ns-common in motor drive EMI or relay bounce-before they propagate across the isolation barrier. Valid input edges are delayed by exactly 36 ns, preserving duty cycle and edge alignment between channels. This filter is always enabled and does not impact maximum data rate (150 Mbps), as minimum pulse width remains 6.7 ns. SI86SO20EE-AS4R's filter improves system robustness without requiring external RC networks or firmware debouncing, especially in high-noise industrial or automotive environments.
Can SI86SO20EE-AS4R replace optocouplers in existing designs without layout changes?
SI86SO20EE-AS4R uses NB SOIC-8 packaging with 3.9 mm creepage/clearance-identical footprint and pinout to industry-standard 8-pin SOIC optocouplers (e.g., PC817, TLP290). No PCB redesign is needed for drop-in replacement. However, SI86SO20EE-AS4R requires two bypass capacitors per side (0.1 µF + 10 µF) placed adjacent to VDD1/GND1 and VDD2/GND2, unlike optocouplers that need only one. Also, its inverting logic means A1→B1 and A2→B2 outputs are inverted-software or upstream logic may require adjustment. SI86SO20EE-AS4R delivers superior timing, CMTI, and lifetime reliability versus optocouplers.
SI86SO20EE-AS4R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si86SOx
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-AS4R FAQ
1.How can I place an order for SI86SO20EE-AS4R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SO20EE-AS4R 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-AS4R reliable?
The price and inventory of SI86SO20EE-AS4R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SO20EE-AS4R is usually 5 days.
3.What payment methods are accepted for SI86SO20EE-AS4R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SO20EE-AS4R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SO20EE-AS4R?
SI86SO20EE-AS4R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SO20EE-AS4R 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-AS4R?
For technical support, including SI86SO20EE-AS4R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SO20EE-AS4R requirements.
6.How does Aetrix verify that SI86SO20EE-AS4R is sourced from the original manufacturer or authorized distributors?
All SI86SO20EE-AS4R 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-AS4R meets industry standards.
7.What is the process for return or replacement of SI86SO20EE-AS4R?
All SI86SO20EE-AS4R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SO20EE-AS4R, 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-AS4R part is unused and in its original packaging.
Return procedure for SI86SO20EE-AS4R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SO20EE-AS4R 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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