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Skyworks Solutions Inc. SI86SL41FC-IS1
- Part No.:
- SI86SL41FC-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86SL41FC-IS1.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:3,156
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Product details
Overview
SI86SL41FC-IS1 from Skyworks Solutions is a 4-channel, low-power digital isolator with reinforced 6000 VRMS isolation, designed for bidirectional signal transmission across high-voltage barriers in industrial and automotive systems. It operates from 2.25–5.5 V on both sides, delivers 150 Mbps data rate, features 10 ns typical propagation delay, and supports fail-safe default-low output mode.
For engineers reviewing the SI86SL41FC-IS1 datasheet, SI86SL41FC-IS1 pinout, SI86SL41FC-IS1 application, or SI86SL41FC-IS1 equivalent, this device is selected for isolated SPI interfaces, motor control gate drivers, and battery management system communication where low quiescent power (0.25 mA/channel less than standard Si86S6x), AEC-Q100 qualification, and IEC 60747-17 reinforced insulation are required.
Technical Context
The SI86SL41FC-IS1 implements RF-based on/off keying modulation across a semiconductor isolation barrier-eliminating startup initialization and enabling robust noise immunity up to 100 kV/µs CMTI. Its architecture integrates Schmitt-trigger inputs with CMOS thresholds and supports tri-state outputs via enable pins.
This variant belongs to the Si86SLx subfamily, optimized for reduced quiescent current versus Si86S6x while retaining identical pinout and package. It lacks sleep mode (SMb) and direction control (DIR), distinguishing it from Si86SMx and Si86SQx variants-confirming its role as a fixed-direction, always-on, low-power isolator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial protocols including SPI and isolated ADC/DAC links without timing bottlenecks. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for safety-critical industrial and automotive applications. |
| Propagation delay | 10 ns typical - enables precise timing synchronization between controller and isolated peripherals (e.g., gate drivers, sensors). |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains without level-shifting circuitry. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive use and industrial environments with wide thermal excursions. |
| Fail-safe mode | Default low output - ensures predictable state during power loss on input side, critical for safe shutdown in motor control and BMS. |
| AEC-Q100 grade | Qualified per Grade 1 - validated for automotive electronics including onboard chargers and traction inverters. |
Pinout & Package
SI86SL41FC-IS1 is housed in a narrow-body SOIC-16 (NB SOIC-16) package with 8.3 mm creepage/clearance, supporting 6000 VRMS isolation. Pin assignments follow the Si86S64x/L4x family layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply pair | Provides bias for input-side logic; requires 0.1 µF + 10 µF local bypassing per Skyworks layout guidelines. |
| A1–A4 | Digital I/O (Side A) | Four unidirectional input channels; accept CMOS/Schmitt-trigger logic levels with 0.15×VDD hysteresis for noise rejection. |
| EN1 | Active-high enable (Side A) | Controls tri-state output behavior on Side B; when low, all B-side outputs enter high-impedance state. |
| VDD2, GND2 | Side B power supply pair | Isolated supply domain for output-side logic; galvanically separated from VDD1/GND1 by reinforced barrier. |
| B1–B4 | Digital I/O (Side B) | Four corresponding output channels; drive 50 Ω nominal impedance, compatible with controlled-impedance PCB traces. |
| EN2 | Active-high enable (Side B) | Controls tri-state output behavior on Side A; independent control enables flexible bus arbitration in bidirectional systems. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates optical degradation and startup delays-enables immediate operation after power-up with no configuration required. |
| Low-power optimization | Consumes 0.25 mA/channel less quiescent current than Si86S6x counterparts-reduces thermal load and extends battery life in portable BMS modules. |
| Reinforced safety certification | UL 1577 (6000 VRMS), VDE 60747-17, CSA 62368-1/60601-1-meets end-equipment requirements for medical, industrial, and EV charging systems. |
| High CMTI immunity | ≥100 kV/µs common-mode transient immunity-prevents data corruption in noisy motor drive and inverter environments. |
| Fail-safe output selection | Factory-configured default-low state ensures defined logic level during VDD1 brownout-critical for safe gate driver disable in power converters. |
Applications
| Industrial Motor Control | Automotive Battery Management |
|---|---|
|
Use Scenario: Isolating PWM signals between MCU and IGBT gate drivers in variable-frequency drives. IC Role / Device Role / Timing Role: Bidirectional digital isolator transmitting gate enable/disable commands and fault feedback across 6000 VRMS barrier. Use Value: 10 ns propagation delay ensures tight timing alignment; AEC-Q100 qualification validates reliability in harsh under-hood conditions. |
Use Scenario: Communicating cell voltage and temperature data from isolated sensor front-end to main BMS controller. IC Role / Device Role / Timing Role: SPI isolator separating high-side analog acquisition circuitry from low-side processing domain. Use Value: 150 Mbps data rate supports fast multi-cell sampling; default-low fail-safe prevents erroneous gate activation during supply interruption. |
| Isolated Switch-Mode Power Supply | Medical Isolated Data Acquisition |
|
Use Scenario: Providing feedback path for secondary-side voltage regulation in isolated DC-DC converters. IC Role / Device Role / Timing Role: Digital isolator carrying error amplifier output or digital PWM commands across primary-secondary boundary. Use Value: 2.25–5.5 V dual-supply range matches both 3.3 V controller and 5 V power stage logic; reinforced insulation satisfies IEC 60601-1 patient safety requirements. |
Use Scenario: Isolating ECG/EEG front-end ADC outputs from USB or Ethernet interface in diagnostic equipment. IC Role / Device Role / Timing Role: High-immunity digital isolator preserving signal integrity of sampled biopotential waveforms. Use Value: 100 kV/µs CMTI prevents interference from switching power supplies; –40 to +125 °C rating supports sterilization and extended operating ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-IS1 | Standard-power Si86S6x variant; higher quiescent current (≈0.25 mA/channel more), same pinout and specs otherwise. | Suitable where power budget permits and legacy design reuse is prioritized over ultra-low standby consumption. | Select SI8641ED-IS1 if existing layout uses Si86S6x footprint and power savings are secondary to proven field performance. |
| ADUM141E0BRIZ | Analog Devices iCoupler; 150 Mbps, 5000 VRMS, 10 ns delay, but only 2.7–5.5 V supply range and no AEC-Q100 qualification. | Limited to industrial/commercial use; not certified for automotive traction or charging systems requiring reinforced insulation. | Choose ADUM141E0BRIZ for cost-sensitive non-automotive designs where 5000 VRMS suffices and 2.25 V minimum supply is not required. |
Compared with SI8641ED-IS1 and ADUM141E0BRIZ, SI86SL41FC-IS1 uniquely combines AEC-Q100 qualification, 6000 VRMS reinforced isolation, and lowest quiescent power in its channel count class-making it the optimal choice for next-generation EV battery controllers and high-reliability industrial drives.
Availability
SI86SL41FC-IS1 is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management systems, and isolated switch-mode power supplies requiring stable component supply across long production lifecycles.
Supply support for SI86SL41FC-IS1 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 Si86S6xx/Lxx/Mxx/Qxx/Sxx family was engineered specifically for high-noise, safety-critical isolation in industrial automation, medical electronics, and electric vehicle power systems-prioritizing reliability, regulatory compliance, and low-power operation.
FAQ
What is the isolation voltage rating of SI86SL41FC-IS1?
SI86SL41FC-IS1 provides 6000 VRMS isolation for 1 minute per UL 1577, certified to IEC 60747-17 reinforced insulation standards. This rating applies to the NB SOIC-16 package and enables use in high-voltage industrial and automotive applications where creepage and clearance must meet stringent safety requirements.
Does SI86SL41FC-IS1 support SPI communication?
Yes, SI86SL41FC-IS1 supports SPI isolation through its four independent unidirectional channels. While it lacks dedicated SPI control pins like MCSb or SCLK found in Si86SSx variants, it can implement SPI by assigning A1/B1 for clock, A2/B2 for MOSI, A3/B3 for MISO, and A4/B4 for chip select-leveraging its 150 Mbps data rate and 10 ns propagation delay for reliable full-duplex timing.
What is the difference between SI86SL41FC-IS1 and SI86S641FC-IS1?
SI86SL41FC-IS1 is the low-power variant of the Si86S641FC-IS1, consuming approximately 0.25 mA less per channel in quiescent operation. Both share identical pinout, package, isolation rating, and timing specs-but SI86SL41FC-IS1 sacrifices no performance to achieve lower power, making it ideal for thermally constrained or battery-powered BMS modules where efficiency is critical.
Is SI86SL41FC-IS1 qualified for automotive applications?
Yes, SI86SL41FC-IS1 is AEC-Q100 qualified (Grade 1) and supports automotive applications including onboard chargers, battery management systems, and traction inverters. Its –40 to +125 °C operating range, reinforced insulation, and manufacturing flow compliance with AIAG PPAP and IMDS/CAMDS requirements confirm suitability for automotive-grade production.
What fail-safe mode does SI86SL41FC-IS1 implement?
SI86SL41FC-IS1 implements a factory-configured default-low fail-safe mode: when VDD1 is unpowered but VDD2 remains active, all B-side outputs default to logic low. This behavior prevents unintended activation of downstream circuits-such as IGBT gates-in power-loss scenarios, enhancing functional safety in motor control and power conversion systems.
SI86SL41FC-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Capacitive Coupling
- Type:
- SPI
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 150kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 18ns, 18ns
- Pulse Width Distortion (Max):
- 7ns
- 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:
- 16-SOIC
SI86SL41FC-IS1 FAQ
1.How can I place an order for SI86SL41FC-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL41FC-IS1 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 SI86SL41FC-IS1 reliable?
The price and inventory of SI86SL41FC-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL41FC-IS1 is usually 5 days.
3.What payment methods are accepted for SI86SL41FC-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL41FC-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL41FC-IS1?
SI86SL41FC-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL41FC-IS1 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 SI86SL41FC-IS1?
For technical support, including SI86SL41FC-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL41FC-IS1 requirements.
6.How does Aetrix verify that SI86SL41FC-IS1 is sourced from the original manufacturer or authorized distributors?
All SI86SL41FC-IS1 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 SI86SL41FC-IS1 meets industry standards.
7.What is the process for return or replacement of SI86SL41FC-IS1?
All SI86SL41FC-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL41FC-IS1, 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 SI86SL41FC-IS1 part is unused and in its original packaging.
Return procedure for SI86SL41FC-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL41FC-IS1 Tags
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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
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
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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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