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Skyworks Solutions Inc. SI86SO20BE-IS4
- Part No.:
- SI86SO20BE-IS4
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SO20BE-IS4.pdf
- Description:
- 6.0 KVRMS INVERTING OUTPUT ISOLA
- Quantity:
- Payment:
- Shipping:
Inventory:2,141
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Product details
Overview
SI86SO20BE-IS4 from Skyworks Solutions is a dual-channel, inverting 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 output (default low), and operates across 2.25–5.5 V supply rails. Used in battery management systems and traction inverters where high CMTI and precise timing are critical.
For engineers reviewing the SI86SO20BE-IS4 datasheet, SI86SO20BE-IS4 pinout, SI86SO20BE-IS4 application, or SI86SO20BE-IS4 equivalent, this page delivers verified specifications, validated pin functions, automotive-grade safety certifications (UL, VDE, CSA, CQC), and real-world design context for isolated signal transmission in high-noise EV powertrain subsystems.
Technical Context
The SI86SO20BE-IS4 implements RF-based on/off keying across a semiconductor isolation barrier-eliminating startup 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) with separate UVLO and reset thresholds per side.
It integrates input deglitch filtering (36 ns), 10 ns typical propagation delay, and 100 kV/µs common-mode transient immunity (CMTI). Fail-safe operation defaults outputs to logic low during unpowered conditions on the input side, ensuring deterministic behavior in BMS fault states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | 150 Mbps - supports high-speed CAN FD, SPI, and isolated ADC interface timing in automotive inverters |
| Isolation voltage | 6000 VRMS - meets reinforced insulation requirements per UL 1577 for 600 VAC mains and EV battery isolation barriers |
| Propagation delay | 5–14 ns - enables sub-100 ns loop timing in motor control gate drivers and fast-response feedback paths |
| CMTI | 100 kV/µs - prevents data corruption during fast dv/dt transients in 800 V traction inverters |
| Supply range | 2.25–5.5 V - interoperable with 3.3 V microcontrollers and 5 V analog front-ends without level shifters |
| Operating temperature | –40 to +125 °C - qualified for under-hood and battery-pack mounting in BEV/OBC applications |
| Fail-safe mode | Default low output - ensures safe shutdown state when side-A power fails in battery monitoring circuits |
Pinout & Package
SI86SO20BE-IS4 uses an NB SOIC-8 package (3.9 mm creepage/clearance) with reinforced insulation. Pin 1 = VDD1, Pin 2 = A1, Pin 3 = A2, Pin 4 = GND1, Pin 5 = GND2, Pin 6 = B1, Pin 7 = B2, Pin 8 = VDD2. Pins A1/A2 and B1/B2 are bidirectional digital I/O channels with inverting logic relationship between sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 | Independent power supplies | Enable galvanic separation of control (3.3 V MCU) and power-side (5 V gate driver) domains |
| GND1, GND2 | Isolated reference grounds | Prevent ground-loop currents between sensitive analog sensing and noisy power stages |
| A1, A2 | Side-A input/output terminals | Accept CMOS/Schmitt-trigger signals from controller; drive side-A with default-low fail-safe |
| B1, B2 | Side-B input/output terminals | Deliver inverted, isolated signals to power-stage peripherals; tolerate ±1500 V common-mode transients |
Key Features
| Feature | Design Value |
|---|---|
| Inverting dual-channel topology | Ensures signal polarity inversion across isolation barrier-required for feedback path integrity in isolated DC-DC controllers |
| 36 ns input deglitch filter | Rejects EMI-induced narrow glitches in high-dv/dt environments like OBC switching nodes without adding external RC networks |
| AEC-Q100 Grade 0 qualification | Validated for 15-year lifetime at 125 °C junction temperature-meets automotive reliability requirements for traction systems |
| 100 kΩ pulldown during UVLO | Guarantees defined low-state output during brown-out or startup-critical for preventing undefined gate-driver states in SiC MOSFET half-bridges |
| Reinforced IEC 60747-17 rating | Supports 1500 VRMS working voltage in SSO-8 package-enables compact PCB layout while meeting IEC 62368-1 and 60601-1 system standards |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
Use Scenario: Isolating cell voltage monitor ICs from MCU in 400–800 V battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator transmitting sampled ADC data and command signals across high-voltage barrier. Use Value: 150 Mbps rate enables real-time cell balancing decisions; 100 kV/µs CMTI prevents misreads during pack switching events. |
Use Scenario: Transmitting PWM signals from inverter controller to isolated gate drivers in SiC half-bridge modules. IC Role / Device Role / Timing Role: Inverting isolator delivering complementary gate drive enable/disable commands with <14 ns skew. Use Value: Sub-10 ns propagation delay minimizes dead-time uncertainty; default-low fail-safe forces safe turn-off during controller power loss. |
| Onboard Charger (OBC) | Industrial Motor Drive |
Use Scenario: Isolating digital communication between AC/DC and DC/DC stages in bi-directional OBCs. IC Role / Device Role / Timing Role: Dual-channel isolator carrying isolated UART/SPI for firmware updates and status reporting. Use Value: 6000 VRMS isolation withstands 1500 VAC input transients; AEC-Q100 ensures longevity in thermal-cycling vehicle environments. |
Use Scenario: Coupling encoder position data and fault signals across isolation barrier in servo drives. IC Role / Device Role / Timing Role: Inverting isolator transferring quadrature encoder pulses and overcurrent alerts to motion controller. Use Value: 36 ns deglitching suppresses commutation noise; 125 °C operation supports enclosed cabinet mounting near motors. |
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, non-inverting, 150 Mbps, 3000 VRMS isolation, SOIC-8 | Lacks dual-channel integration and reinforced 6000 VRMS rating; not AEC-Q100 qualified | Use only in non-automotive, lower-isolation industrial interfaces where channel count and safety certification are secondary |
| ISO7721DWR | Dual-channel, non-inverting, 100 Mbps, 5000 VRMS, SOIC-8, AEC-Q100 Grade 1 | Lower data rate and isolation voltage; no selectable fail-safe mode; rated only to +105 °C | Acceptable for cost-sensitive 12 V automotive body electronics but insufficient for 800 V traction systems requiring Grade 0 and 6000 VRMS |
Compared with ADUM120N0BRZ-RL7 and ISO7721DWR, SI86SO20BE-IS4 uniquely combines dual-channel inversion, 6000 VRMS reinforced isolation, AEC-Q100 Grade 0, and default-low fail-safe-making it the only option qualified for functional safety-critical BMS and inverter gate-drive isolation in battery electric vehicles.
Availability
SI86SO20BE-IS4 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, onboard chargers, and industrial motor drives requiring stable component supply with automotive-grade lifecycle assurance.
Supply support for SI86SO20BE-IS4 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 wireless, automotive, and industrial markets.
The Si86S61x/S62x/SOx family was engineered specifically for high-reliability automotive and industrial isolation-delivering RF-based digital isolation with AEC-Q100 qualification, reinforced safety ratings, and fail-safe determinism in harsh EMI environments.
FAQ
What is the isolation voltage rating of SI86SO20BE-IS4 and which safety standards does it meet?
SI86SO20BE-IS4 is rated for 6000 VRMS isolation per UL 1577 and carries reinforced insulation certification per IEC 60747-17, CSA 62368-1/60601-1, and CQC GB4943.1. It achieves 1500 VRMS working voltage in its NB SOIC-8 package, making it suitable for 800 V battery systems and medical equipment requiring two means of patient protection (2 MOPP).
Does SI86SO20BE-IS4 support inverting logic between input and output sides?
Yes, SI86SO20BE-IS4 is an inverting isolator: logic high on A1/A2 produces logic low on B1/B2, and vice versa. This inversion is inherent to the SOx variant and is leveraged in feedback loops and complementary gate drive architectures where signal polarity reversal across isolation is required by system design.
What fail-safe behavior does SI86SO20BE-IS4 exhibit during input-side power loss?
SI86SO20BE-IS4 is ordered with default-low fail-safe mode (denoted by "B" in part number suffix). When VDD1 drops below UVLO threshold, outputs B1/B2 are actively pulled low via internal circuitry-ensuring safe deactivation of downstream power devices in battery monitoring or gate driver applications.
How does the 36 ns input deglitch filter in SI86SO20BE-IS4 improve system robustness?
The 36 ns deglitch filter rejects narrow noise pulses-such as those induced by IGBT/SiC switching edges-before they propagate across the isolation barrier. This eliminates false triggering in isolated fault detection lines and ADC sampling clocks without requiring external RC filters or firmware debouncing, reducing BOM count and latency.
What is the maximum data rate and propagation delay specification for SI86SO20BE-IS4?
SI86SO20BE-IS4 supports up to 150 Mbps data rate with typical propagation delay of 10 ns and worst-case delay of 14 ns (at 2.5 V). This enables use in high-speed isolated SPI interfaces for real-time sensor fusion and fast-loop control in automotive power electronics where timing precision is critical.
SI86SO20BE-IS4 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:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSO
SI86SO20BE-IS4 FAQ
1.How can I place an order for SI86SO20BE-IS4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SO20BE-IS4 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 SI86SO20BE-IS4 reliable?
The price and inventory of SI86SO20BE-IS4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SO20BE-IS4 is usually 5 days.
3.What payment methods are accepted for SI86SO20BE-IS4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SO20BE-IS4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SO20BE-IS4?
SI86SO20BE-IS4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SO20BE-IS4 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 SI86SO20BE-IS4?
For technical support, including SI86SO20BE-IS4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SO20BE-IS4 requirements.
6.How does Aetrix verify that SI86SO20BE-IS4 is sourced from the original manufacturer or authorized distributors?
All SI86SO20BE-IS4 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 SI86SO20BE-IS4 meets industry standards.
7.What is the process for return or replacement of SI86SO20BE-IS4?
All SI86SO20BE-IS4 units undergo pre-shipment inspection (PSI). If there is an issue with SI86SO20BE-IS4, 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 SI86SO20BE-IS4 part is unused and in its original packaging.
Return procedure for SI86SO20BE-IS4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SO20BE-IS4 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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