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Skyworks Solutions Inc. SI86SO20EE-IS4
- Part No.:
- SI86SO20EE-IS4
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SO20EE-IS4.pdf
- Description:
- 6.0 KVRMS INVERTING OUTPUT ISOLA
- Quantity:
- Payment:
- Shipping:
Inventory:3,227
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Product details
Overview
SI86SO20EE-IS4 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. Used in battery management systems and traction inverters where high CMTI (>100 kV/µs) and thermal robustness (–40 to +125 °C) are critical.
For engineers reviewing the SI86SO20EE-IS4 datasheet, SI86SO20EE-IS4 pinout, SI86SO20EE-IS4 application, or SI86SO20EE-IS4 equivalent, this page delivers verified specifications, package mapping to SSO-8, functional pin definitions, automotive-grade safety certifications (UL, VDE, CSA), and real-world timing behavior including 9 ns typical propagation delay and 3.5 ns pulse width distortion.
Technical Context
The SI86SO20EE-IS4 implements RF-based on/off keying across a semiconductor isolation barrier-eliminating startup initialization and enabling deterministic timing. Its dual-channel architecture supports independent side-A (VDD1/GND1/A1/A2) and side-B (VDD2/GND2/B1/B2) domains with no shared ground.
It integrates undervoltage lockout (UVLO+ = 2.18 V, UVLO– = 2.05 V) and reset circuitry (RSTB+ ≈ 1.7 V) per side, ensuring fail-safe state retention during partial power loss. The inverting logic function (A→¬B) is fixed per part number, distinct from non-inverting SOx variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | 150 Mbps - supports high-speed CAN FD, SPI, and isolated ADC interfaces without protocol overhead |
| Propagation delay | 9 ns typical - enables sub-10 ns timing-critical feedback loops in motor control and power inverters |
| Pulse width distortion | 3.5 ns typical - preserves signal integrity for narrow PWM pulses and clock distribution |
| Common-mode transient immunity | 100 kV/µs minimum - maintains data integrity in noisy high-dV/dt environments like IGBT gate drivers |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements for 1000 VDC bus systems per UL 1577 |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive use and industrial ambient extremes |
| Supply voltage range | 2.25–5.5 V - interoperable with 3.3 V microcontrollers and 5 V legacy logic without level shifters |
Pinout & Package
SI86SO20EE-IS4 is housed in an SSO-8 (wide-body SOIC-8) package with 8.0 mm creepage/clearance, optimized for 6000 VRMS reinforced insulation. Pin 1 is marked with dot; pin 1–4 belong to Side A (input), pins 5–8 to Side B (output), separated by internal isolation barrier.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Side A power supply | Supplies input-side logic; must be bypassed with 0.1 µF + 10 µF capacitors near pin |
| GND1 | Side A ground reference | Return path for Side A signals; must be isolated from GND2 by PCB layout |
| A1, A2 | Digital inputs (Side A) | Inverting inputs driving B1/B2 outputs; accept CMOS/Schmitt thresholds (VIH = 0.7×VDD1) |
| GND2 | Side B ground reference | Return path for output-side logic; galvanically isolated from GND1 |
| B1, B2 | Digital outputs (Side B) | Inverting outputs (¬A1, ¬A2); 50 Ω nominal output impedance for controlled-impedance trace routing |
| VDD2 | Side B power supply | Supplies output-side logic; independent of VDD1, enabling level-shifting applications |
Key Features
| Feature | Design Value |
|---|---|
| Inverting output logic | Fixed A→¬B mapping eliminates external inverters in feedback paths and dead-time control circuits |
| Selectable fail-safe mode | Default-low output (EE suffix) ensures safe shutdown state during VDD1 loss in BMS and OBC applications |
| No start-up initialization | RF modulation architecture enables immediate data transmission at power-on-no configuration or handshake required |
| High EMI immunity | Schmitt-trigger inputs + 100 kV/µs CMTI suppress noise coupling in high-power motor drives and inverters |
| AEC-Q100 Grade 0 | Qualified for –40 to +150 °C junction operation-supports extended automotive thermal profiles beyond standard Grade 1 |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADCs and pack-level MCU communication in EV battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator transmits sampled analog front-end data and receives command signals across 400–800 V DC bus. Use Value: 6000 VRMS isolation withstands long-term DC stress; 150 Mbps supports fast multiplexed sampling; default-low output prevents false activation during brownout. |
Use Scenario: Transmitting PWM gate drive signals from inverter controller to IGBT/SiC half-bridge drivers. IC Role / Device Role / Timing Role: Inverting isolator conveys complementary PWM pairs with matched propagation delay (<3 ns skew) to prevent shoot-through. Use Value: 9 ns typical tPLH/tPHL and 3.5 ns PWD ensure precise edge alignment; 100 kV/µs CMTI rejects switching noise from 1000 V bus transients. |
| Onboard Charger (OBC) | Industrial PLC I/O Module |
|
Use Scenario: Isolating AC-DC controller feedback (voltage/current sensing) and digital control interface in bidirectional OBCs. IC Role / Device Role / Timing Role: Dual-channel isolator separates primary-side sensing and secondary-side MCU, supporting both AC and DC charging modes. Use Value: 2.25–5.5 V supply range accommodates 3.3 V MCU and 5 V analog circuitry; AEC-Q100 qualification validates reliability over 15-year vehicle lifetime. |
Use Scenario: Providing channel-isolated digital input/output between field-side sensors/actuators and PLC backplane. IC Role / Device Role / Timing Role: Inverting isolator interfaces 24 V DC field signals to 3.3 V logic while maintaining IEC 61000-4-5 surge immunity. Use Value: SSO-8 package delivers 8.0 mm creepage for 600 VRMS working voltage; reinforced VDE/UL certification simplifies system-level safety approval. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI86SO20ED-IS4 | Same SSO-8 package and inverting function, but default-high fail-safe output (ED suffix) | Preferred when system requires active-high enable or latch-up prevention during power loss | Select SI86SO20ED-IS4 only if default-high output behavior aligns with safety logic; otherwise SI86SO20EE-IS4 is optimal for default-low shutdown states |
| ADUM120N0BRZ-RL7 | Non-inverting dual-channel isolator; 150 Mbps; 3000 VRMS isolation; SOIC-8 (narrow-body, 3.9 mm creepage) | Lacks reinforced insulation rating and automotive qualification; suitable for industrial, not automotive, end equipment | Choose ADUM120N0BRZ-RL7 only for cost-sensitive non-automotive designs requiring non-inverting logic and lower isolation voltage |
Compared with SI86SO20ED-IS4, SI86SO20EE-IS4 provides guaranteed low-state fail-safe behavior critical for BMS fault shutdown; versus ADUM120N0BRZ-RL7, it delivers 100% higher isolation voltage, AEC-Q100 qualification, and SSO-8 creepage compliance for automotive safety-critical systems.
Availability
SI86SO20EE-IS4 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply, long-lifecycle support, and automotive-grade traceability.
Supply support for SI86SO20EE-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.
The Si86S61x/S62x/SOx family was designed specifically for high-reliability automotive and industrial isolation, emphasizing reinforced safety certification, ultra-low propagation delay, and robust operation across extreme temperature and EMI conditions.
FAQ
What is the fail-safe output state of SI86SO20EE-IS4?
The SI86SO20EE-IS4 has a default-low fail-safe output. When VDD1 is unpowered but VDD2 remains active, B1 and B2 outputs are driven low. This behavior is fixed by the "EE" ordering code and ensures safe deactivation of downstream drivers in battery management or motor control systems during input-side power loss.
Does SI86SO20EE-IS4 require external configuration or initialization at power-up?
No, SI86SO20EE-IS4 requires no configuration or initialization. Its RF-based isolation architecture enables immediate data transmission upon power application. Valid output appears within 300 µs of VDD1/VDD2 reaching UVLO+ threshold, with no firmware or register setup needed-reducing system boot time and design complexity.
What safety certifications does SI86SO20EE-IS4 hold?
SI86SO20EE-IS4 is certified to UL 1577 (6000 VRMS), VDE 60747-17 (reinforced), CSA 62368-1/60601-1, and CQC GB4943.1. These approvals validate its suitability for medical, industrial, and automotive applications requiring two-mop protection and 6000 VRMS isolation endurance.
Can SI86SO20EE-IS4 operate with mismatched supply voltages on Side A and Side B?
Yes, SI86SO20EE-IS4 supports independent VDD1 and VDD2 supplies ranging from 2.25 V to 5.5 V each. This enables level-shifting between 3.3 V MCUs and 5 V peripheral logic, or integration into mixed-voltage systems such as isolated ADC interfaces where analog and digital domains use different rails.
What is the maximum data rate supported by SI86SO20EE-IS4?
SI86SO20EE-IS4 supports up to 150 Mbps per channel. This high data rate is validated across the full operating temperature range (–40 to +125 °C) and supply range (2.25–5.5 V), making it suitable for real-time control loops, isolated SPI, and high-resolution encoder interfaces in automotive and industrial systems.
SI86SO20EE-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
SI86SO20EE-IS4 FAQ
1.How can I place an order for SI86SO20EE-IS4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SO20EE-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 SI86SO20EE-IS4 reliable?
The price and inventory of SI86SO20EE-IS4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SO20EE-IS4 is usually 5 days.
3.What payment methods are accepted for SI86SO20EE-IS4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SO20EE-IS4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SO20EE-IS4?
SI86SO20EE-IS4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SO20EE-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 SI86SO20EE-IS4?
For technical support, including SI86SO20EE-IS4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SO20EE-IS4 requirements.
6.How does Aetrix verify that SI86SO20EE-IS4 is sourced from the original manufacturer or authorized distributors?
All SI86SO20EE-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 SI86SO20EE-IS4 meets industry standards.
7.What is the process for return or replacement of SI86SO20EE-IS4?
All SI86SO20EE-IS4 units undergo pre-shipment inspection (PSI). If there is an issue with SI86SO20EE-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 SI86SO20EE-IS4 part is unused and in its original packaging.
Return procedure for SI86SO20EE-IS4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SO20EE-IS4 Tags
-
ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
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ISO7721FDR
Texas Instruments
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SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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