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Skyworks Solutions Inc. SI86S620FE-IS4
- Part No.:
- SI86S620FE-IS4
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86S620FE-IS4.pdf
- Description:
- 6.0 KVRMS ISOLATOR, 2 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:4,723
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Product details
Overview
SI86S620FE-IS4 from Skyworks Solutions is a dual-channel, high-speed 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 galvanic separation and noise immunity are critical.
For engineers reviewing the SI86S620FE-IS4 datasheet, SI86S620FE-IS4 pinout, SI86S620FE-IS4 application, or SI86S620FE-IS4 equivalent, key selection criteria include its 10 ns typical propagation delay, 100 kV/µs CMTI, -40 to +125 °C operating range, and NB SOIC-8 package with 3.9 mm creepage/clearance - all validated for automotive-grade reliability and reinforced insulation per IEC 60747-17.
Technical Context
The SI86S620FE-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), each with dedicated UVLO and reset circuitry (RSTB± ~1.7 V).
It integrates input deglitch filtering (36 ns) and CMOS/Schmitt thresholds for high EMI resilience. Fail-safe behavior is factory-configured: SI86S620FE-IS4 specifies default-low output during input-side power loss, with output-side pull-downs ensuring deterministic state under fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | 150 Mbps - supports high-speed serial interfaces like SPI, RS-485 transceiver control, and isolated ADC/DAC timing. |
| Propagation delay | 5–14 ns (typ. 10 ns) - enables tight timing budgets in motor gate drivers and real-time feedback loops. |
| CMTI | 100 kV/µs minimum - ensures reliable operation in high dv/dt environments such as power inverters and onboard chargers. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for safety-critical automotive applications. |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog subsystems without level-shifting. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive use and industrial motor control enclosures. |
| Fail-safe mode | Default-low output - guarantees safe shutdown state when side-A power fails, critical for BMS fault signaling. |
Pinout & Package
NB SOIC-8 package (narrow-body, 3.9 mm creepage/clearance), RoHS-compliant, with 2.54 mm lead pitch and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Side-A power supply | Supplies isolated input-side logic; requires 0.1 µF + 10 µF bypass capacitors near pin. |
| GND1 | Side-A ground reference | Return path for side-A signals; must be separated from GND2 by isolation barrier. |
| A1, A2 | Side-A digital inputs | CMOS/Schmitt-trigger inputs with 0.15×VDD hysteresis; accept 0–VDD logic levels. |
| NC | No-connect | Pin 3 is unconnected - must remain floating; no PCB trace or solder mask opening required. |
| GND2 | Side-B ground reference | Return path for side-B outputs; electrically isolated from GND1 by internal barrier. |
| B1, B2 | Side-B digital outputs | 50 Ω nominal output impedance; default-low during side-A power loss per ordering option FE. |
| VDD2 | Side-B power supply | Supplies isolated output-side logic; independent of VDD1; supports different voltage rails. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates startup initialization delay and avoids LED aging issues found in optocouplers. |
| Selectable fail-safe output (FE) | Factory-set default-low output ensures safe state during side-A power failure in BMS and OBC systems. |
| 36 ns input deglitch filter | Rejects sub-36 ns noise pulses on A1/A2 lines, preventing false triggering in noisy motor drive environments. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use up to +125 °C ambient, with PPAP documentation and IMDS/CAMDS support. |
| Reinforced insulation certification | UL 1577 (6000 VRMS), VDE 60747-17, CSA 62368-1 - enables single-component isolation in medical and EV safety architectures. |
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 separates analog front-end ADC interface (A1/A2) from MCU SPI bus (B1/B2), blocking common-mode transients during cell balancing. Use Value: 100 kV/µs CMTI prevents data corruption during 1000 V/ms switching events; default-low output signals fault condition when sensing rail loses power. |
Use Scenario: Transmitting PWM gate signals from inverter controller to high-side IGBT/SiC drivers in 400–800 V EV drivetrains. IC Role / Device Role / Timing Role: Provides galvanic isolation for two independent PWM channels (A1→B1, A2→B2) with matched propagation delay (<3 ns skew) to maintain phase accuracy. Use Value: 10 ns typical propagation delay enables >100 kHz switching frequencies; 6000 VRMS rating supports functional safety up to ASIL-D system decomposition. |
| Onboard Charger (OBC) | Industrial PLC I/O Module |
|
Use Scenario: Isolating AC-DC controller feedback (voltage/current sense) and DC-DC secondary-side telemetry in bidirectional OBCs. IC Role / Device Role / Timing Role: Bridges isolated power stage monitoring signals to primary-side MCU while maintaining reinforced insulation for user-accessible ports. Use Value: 150 Mbps data rate supports fast telemetry updates; UL/VDE certifications satisfy IEC 62368-1 and 60601-1 requirements for consumer-facing charging equipment. |
Use Scenario: Providing channel-isolated digital input conditioning for 24 V DC field sensors in factory automation cabinets. IC Role / Device Role / Timing Role: Converts noisy industrial field signals into clean, glitch-free logic levels for PLC CPU, with independent side-A/side-B supply domains. Use Value: 36 ns deglitch filter suppresses contact bounce and EFT bursts; wide 2.25–5.5 V supply range simplifies integration with legacy 24 V sensor power rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM220N0BRIZ | 2-channel, 150 Mbps, 5 kVRMS, default-high fail-safe, SOIC-8 (wide-body) | Lacks AEC-Q100 qualification; lower CMTI (75 kV/µs); no deglitch filter | Use where automotive qualification is not required and default-high logic is acceptable. |
| ISO7721FDWR | 2-channel, 100 Mbps, 5 kVRMS, default-low, SOIC-16 (wide-body) | Lower data rate; higher propagation delay (11 ns typ.); no AEC-Q100; larger footprint | Consider for cost-sensitive industrial designs where 100 Mbps suffices and board space permits SOIC-16. |
Compared with ADUM220N0BRIZ and ISO7721FDWR, SI86S620FE-IS4 delivers superior automotive readiness (AEC-Q100 Grade 1), higher noise immunity (100 kV/µs CMTI), and integrated 36 ns deglitching - making it the preferred choice for BMS, OBC, and traction inverter signal isolation where safety, speed, and reliability are non-negotiable.
Availability
SI86S620FE-IS4 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply with automotive-grade lifecycle assurance.
Supply support for SI86S620FE-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 leader in analog and mixed-signal semiconductors, specializing in RF, timing, and isolation technologies for wireless, automotive, and industrial markets.
The Si86S6xx family targets high-reliability automotive and industrial isolation, delivering RF-based digital isolators with AEC-Q100 qualification, reinforced safety ratings, and fail-safe configurability for next-generation EV and smart factory systems.
FAQ
What is the isolation voltage rating of the SI86S620FE-IS4?
The SI86S620FE-IS4 is rated for 6000 VRMS isolation (1 minute) per UL 1577 and reinforced insulation per IEC 60747-17. This rating applies to the NB SOIC-8 package and is validated for continuous working voltage up to 1500 VRMS (SSO-8 variant) or 445 VRMS (NB SOIC-8) under TDDB testing conditions.
Does the SI86S620FE-IS4 require external startup initialization?
No, the SI86S620FE-IS4 does not require external startup initialization. Its RF-based architecture enables immediate operation upon power-up. Outputs follow inputs after a 300 µs start-up time, during which a 100 kΩ pulldown holds them low - consistent with its default-low fail-safe configuration.
What is the meaning of "FE" in SI86S620FE-IS4?
The "FE" suffix in SI86S620FE-IS4 denotes the factory-configured fail-safe option: default-low output state when side-A (input-side) power is absent. This ensures predictable, safe behavior during power loss in automotive BMS and OBC applications, with internal pull-downs on B1/B2 outputs.
Can SI86S620FE-IS4 operate with different supply voltages on side-A and side-B?
Yes, SI86S620FE-IS4 supports independent 2.25–5.5 V supplies on VDD1 (side-A) and VDD2 (side-B). This enables level translation between 3.3 V microcontrollers and 5 V analog subsystems without external level shifters, and is confirmed in Tables 4–8 of the datasheet for all tested VDD combinations.
Is the SI86S620FE-IS4 pin-compatible with other Si86S6xx variants?
No - SI86S620FE-IS4 uses a specific NB SOIC-8 pinout with NC on pin 3, distinct from Si86S621 (NC on pin 4) and Si86S622 (no NC pins). Pin compatibility is not guaranteed across the Si86S6xx family; layout must match the exact variant's pin description in Table 1 and Figure 1 of the datasheet.
SI86S620FE-IS4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si86S62x
- 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:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 41.5ns, 41.5ns
- 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
SI86S620FE-IS4 FAQ
1.How can I place an order for SI86S620FE-IS4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S620FE-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 SI86S620FE-IS4 reliable?
The price and inventory of SI86S620FE-IS4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S620FE-IS4 is usually 5 days.
3.What payment methods are accepted for SI86S620FE-IS4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S620FE-IS4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S620FE-IS4?
SI86S620FE-IS4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S620FE-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 SI86S620FE-IS4?
For technical support, including SI86S620FE-IS4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S620FE-IS4 requirements.
6.How does Aetrix verify that SI86S620FE-IS4 is sourced from the original manufacturer or authorized distributors?
All SI86S620FE-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 SI86S620FE-IS4 meets industry standards.
7.What is the process for return or replacement of SI86S620FE-IS4?
All SI86S620FE-IS4 units undergo pre-shipment inspection (PSI). If there is an issue with SI86S620FE-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 SI86S620FE-IS4 part is unused and in its original packaging.
Return procedure for SI86S620FE-IS4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S620FE-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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