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Skyworks Solutions Inc. SI86SL41EC-AS1R
- Part No.:
- SI86SL41EC-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86SL41EC-AS1R.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:3,395
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Product details
Overview
SI86SL41EC-AS1R from Skyworks Solutions is a 4-channel, low-power digital isolator with reinforced 6000 VRMS isolation, 150 Mbps data rate, and AEC-Q100 qualification for automotive systems. It features Schmitt-trigger inputs, tri-state outputs with enable, selectable fail-safe mode (default high/low), and operates across –40 to 125 °C in a WB SOIC-16 package. It isolates SPI interfaces in battery management systems.
For engineers reviewing the SI86SL41EC-AS1R datasheet, SI86SL41EC-AS1R pinout, SI86SL41EC-AS1R application, or SI86SL41EC-AS1R equivalent, key selection criteria include reinforced 6000 VRMS isolation rating, AEC-Q100 Grade 1 qualification, low-power operation (0.25 mA/channel quiescent reduction vs. Si86S6x), 10 ns typical propagation delay, and support for fail-safe output configuration during power loss.
Technical Context
The SI86SL41EC-AS1R implements RF-based on/off keying modulation across a semiconductor isolation barrier-no start-up initialization required. Its architecture delivers high electromagnetic immunity (100 kV/µs CMTI min) and supports dual-supply operation (2.25–5.5 V per side) with independent UVLO and reset monitoring on both sides.
It belongs to the Si86SLx subfamily optimized for lower quiescent current versus Si86S6x, with identical pinout but relaxed timing specs to prioritize power savings. The device includes tri-state enable control (EN1/EN2), fail-safe output selection via ordering option, and requires only 0.1 µF + 10 µF bypass capacitors per supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, isolated ADC/DAC interfaces without protocol overhead |
| Isolation rating | 6000 VRMS - meets reinforced insulation requirements per UL 1577, IEC 60747-17, and CSA 62368-1 |
| Propagation delay | 10 ns typical - enables tight timing budgets in motor control gate drivers and real-time BMS communication |
| Supply voltage | 2.25–5.5 V per side - interoperable with 3.3 V and 5 V logic domains without level shifters |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications including onboard chargers and traction inverters |
| Power consumption | 0.25 mA/channel less than Si86S6x - reduces thermal load and extends battery life in always-on vehicle subsystems |
| CMTI | ≥100 kV/µs - maintains signal integrity in noisy high-dv/dt environments like power inverters |
Pinout & Package
SI86SL41EC-AS1R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance compliant for 6000 VRMS reinforced insulation. Pinout matches Si86S64x family: 4 forward channels (A1–A4 → B1–B4), EN1/EN2 enable pins, dual VDD/GND supplies, and no NC pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power domain | Supplies and grounds the input-side logic; requires 0.1 µF + 10 µF local bypass |
| A1–A4 | Input-side digital I/O | Accept CMOS/Schmitt-trigger inputs; tolerate 0.3×VDD1 to 0.7×VDD1 thresholds for noise immunity |
| EN1 | Side A output enable | Active-high control: drives all B-side outputs into high-impedance when low |
| VDD2, GND2 | Side B power domain | Isolated supply for output-side logic; independent of VDD1 for system-level fault containment |
| B1–B4 | Output-side digital I/O | Drive 50 Ω nominal impedance; compatible with controlled-impedance PCB traces up to 150 Mbps |
| EN2 | Side B output enable | Active-high control: places A-side outputs in high-Z when low - enables bidirectional bus arbitration |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot-time delays - outputs follow inputs immediately after UVLO exit |
| Selectable fail-safe mode | Ordering option sets default output state (high or low) during VDD1 unpowered condition - critical for safe shutdown in BMS |
| Low-power optimization | 0.25 mA/channel quiescent current reduction vs. Si86S6x - achieved via architectural tuning, not pinout change |
| Tri-state outputs with enable | EN1/EN2 provide single-point control over all outputs per side - simplifies bus sharing and hot-swap isolation |
| Reinforced safety certification | UL 1577, VDE 60747-17, CSA 62368-1, CQC GB4943.1 - accepted for medical, industrial, and automotive end-equipment certification |
Applications
| Battery Management System (BMS) | Onboard Charger (OBC) |
|---|---|
Use Scenario: Isolating SPI communication between microcontroller and isolated ADCs monitoring cell voltages and temperatures in high-voltage battery packs. IC Role / Device Role / Timing Role: Digital isolator providing galvanic separation for serial data and clock signals across 400–800 V DC bus. Use Value: Enables accurate, noise-immune sampling at 150 Mbps while meeting reinforced 6000 VRMS isolation and AEC-Q100 Grade 1 requirements. | Use Scenario: Isolating control signals between primary-side controller and secondary-side gate drivers in AC/DC and DC/DC stages of EV onboard chargers. IC Role / Device Role / Timing Role: Bidirectional signal isolator for PWM feedback, fault reporting, and enable/disable commands across high-voltage boundaries. Use Value: Maintains 10 ns propagation delay and ≥100 kV/µs CMTI to preserve timing integrity in fast-switching SiC/GaN power stages. |
| Traction Inverter Control | Industrial Motor Drive |
Use Scenario: Isolating position encoder feedback and gate drive signals in electric vehicle traction inverters operating at >10 kHz switching frequencies. IC Role / Device Role / Timing Role: High-speed digital isolator supporting resolver-to-digital converter (RDC) interface and isolated PWM generation. Use Value: Delivers 150 Mbps data rate and –40 to 125 °C operation to sustain reliability in under-hood thermal environments. | Use Scenario: Isolating fieldbus communications (e.g., isolated RS-485 or CAN transceiver control lines) and analog sensor inputs in factory automation PLCs. IC Role / Device Role / Timing Role: General-purpose multi-channel isolator for separating logic-level control from high-noise motor power circuits. Use Value: Provides 6000 VRMS reinforced insulation and 100 kV/µs transient immunity to meet IEC 61800-5-1 functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-AS1R | Higher power consumption (Si86S6x base), same pinout and 150 Mbps rating, no low-power optimization | Lacks 0.25 mA/channel quiescent reduction - less suitable for always-on BMS monitoring circuits | Choose when maximum timing performance (e.g., <10 ns max propagation delay) is prioritized over power |
| ADUM4401BRWZ | 4-channel, 100 Mbps, 5000 VRMS, non-AEC-Q100, different pinout (SOIC-16 NB), higher IDD | Not qualified for automotive use; lacks fail-safe output selection and reinforced 6000 VRMS rating | Consider only for industrial applications where AEC-Q100 and 6000 VRMS are not required |
Compared with SI8641ED-AS1R, SI86SL41EC-AS1R trades minor timing margin for significant quiescent power reduction - ideal for thermally constrained automotive modules. Versus ADUM4401BRWZ, it adds automotive qualification, higher isolation, and fail-safe configurability at the cost of non-drop-in compatibility.
Availability
SI86SL41EC-AS1R is available at Aetrix Electronics and suitable for battery management systems, onboard chargers, and traction inverters requiring stable component supply with automotive-grade traceability and long-term lifecycle support.
Supply support for SI86SL41EC-AS1R 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 for wireless, automotive, and industrial markets.
The Si86S6xx/Lxx family was designed to replace optocouplers with robust, high-speed, low-power digital isolation for safety-critical automotive and industrial systems demanding reinforced insulation and AEC-Q100 compliance.
FAQ
What is the isolation rating and safety certification status of SI86SL41EC-AS1R?
SI86SL41EC-AS1R provides 6000 VRMS reinforced isolation per UL 1577 and is certified to IEC 60747-17, CSA 62368-1, and CQC GB4943.1. These approvals are fully documented and accepted for end-equipment certification in automotive, medical, and industrial applications. SI86SL41EC-AS1R meets the reinforced insulation requirements essential for high-voltage battery systems.
Does SI86SL41EC-AS1R support fail-safe output configuration during power loss?
Yes, SI86SL41EC-AS1R offers a selectable fail-safe mode via ordering option: outputs default to logic high or logic low when VDD1 is unpowered but VDD2 remains active. This behavior is defined in Table 4 of the datasheet and ensures predictable state handling in battery management and charger control systems. SI86SL41EC-AS1R implements this using internal UVLO and reset circuitry on both sides.
How does the low-power optimization of SI86SL41EC-AS1R differ from standard Si86S6x isolators?
SI86SL41EC-AS1R consumes 0.25 mA per channel less quiescent current than equivalent Si86S6x devices due to architectural tuning-not pinout changes or external components. This reduction is achieved without sacrificing 150 Mbps data rate or 6000 VRMS isolation. SI86SL41EC-AS1R maintains identical WB SOIC-16 packaging and pin compatibility while prioritizing energy efficiency for always-on automotive subsystems.
What are the recommended bypass capacitors for SI86SL41EC-AS1R?
SI86SL41EC-AS1R requires 0.1 µF ceramic + 10 µF bulk capacitors between VDD1–GND1 and VDD2–GND2, placed as close as possible to the respective pins. This dual-capacitor approach suppresses high-frequency noise and stabilizes supply rails during fast edge transitions. SI86SL41EC-AS1R does not require additional series resistors unless system-level EMI exceeds design margins.
Is SI86SL41EC-AS1R pin-compatible with other Si86S64x-family isolators?
Yes, SI86SL41EC-AS1R uses the same Si86S64x pinout: VDD1/A1/A2/A3/A4/EN1/GND1 on Side A and GND2/B1/B2/B4/B3/EN2/VDD2 on Side B in WB SOIC-16. It shares identical footprint, pad layout, and signal mapping with SI86S640/641/642 variants-enabling drop-in replacement where low-power operation is acceptable. SI86SL41EC-AS1R retains full functional compatibility including tri-state enable and fail-safe configuration.
SI86SL41EC-AS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
SI86SL41EC-AS1R FAQ
1.How can I place an order for SI86SL41EC-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL41EC-AS1R 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 SI86SL41EC-AS1R reliable?
The price and inventory of SI86SL41EC-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL41EC-AS1R is usually 5 days.
3.What payment methods are accepted for SI86SL41EC-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL41EC-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL41EC-AS1R?
SI86SL41EC-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL41EC-AS1R 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 SI86SL41EC-AS1R?
For technical support, including SI86SL41EC-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL41EC-AS1R requirements.
6.How does Aetrix verify that SI86SL41EC-AS1R is sourced from the original manufacturer or authorized distributors?
All SI86SL41EC-AS1R 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 SI86SL41EC-AS1R meets industry standards.
7.What is the process for return or replacement of SI86SL41EC-AS1R?
All SI86SL41EC-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL41EC-AS1R, 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 SI86SL41EC-AS1R part is unused and in its original packaging.
Return procedure for SI86SL41EC-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL41EC-AS1R 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
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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