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Skyworks Solutions Inc. SI86SL41BE-AS2R
- Part No.:
- SI86SL41BE-AS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SL41BE-AS2R.pdf
- Description:
- 6.0 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:1,038
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Product details
Overview
SI86SL41BE-AS2R 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 default-high/low output, and operates across –40 to 125 °C in WB SOIC-16 package. It is used in battery management systems and isolated ADC interfaces where high CMTI and low quiescent power are critical.
For engineers reviewing the SI86SL41BE-AS2R datasheet, SI86SL41BE-AS2R pinout, SI86SL41BE-AS2R application, or SI86SL41BE-AS2R equivalent, this page delivers verified specifications, validated pin functions, automotive-grade safety certifications (UL 1577, VDE 60747-17), and real-world use context for isolated signal integrity in traction inverters and onboard chargers.
Technical Context
The SI86SL41BE-AS2R implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and enabling deterministic timing. Its architecture supports bidirectional channel operation with independent side-A and side-B UVLO and reset circuitry (RSTB– ≈ 1.7 V), ensuring robust behavior during supply transients.
It integrates sleep mode via SMb pin (active-low), reducing current to 750 µA per side while retaining one always-on channel for wake detection. The device uses CMOS thresholds with 0.15 × VDD input hysteresis and 50 Ω nominal output impedance for controlled-impedance PCB routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, CAN FD, and isolated sensor interfaces without protocol translation. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements per UL 1577 and VDE 60747-17 for EV battery systems. |
| Propagation delay | 10 ns (typ) - enables tight timing budgets in motor control gate drivers and real-time feedback loops. |
| Supply voltage | 2.25 to 5.5 V - allows direct interfacing 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 traction inverters and OBCs. |
| CMTI | 100 kV/µs (min) - ensures reliable operation in high-dV/dt environments like IGBT/SiC switching nodes. |
| Fail-safe mode | Selectable default-high or default-low output - prevents undefined states during power loss in safety-critical BMS monitoring. |
Pinout & Package
SI86SL41BE-AS2R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance compliant for 6000 VRMS working voltage. Pinout matches Si86S64x/L4x family per Figure 2 of datasheet 206553B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power domain | Supplies and grounds the primary-side logic interface; requires 0.1 µF + 10 µF bypass capacitors. |
| A1–A4 | Side A digital I/O | Four unidirectional input channels from controller side; accept Schmitt-trigger + CMOS thresholds. |
| VDD2, GND2 | Side B power domain | Supplies and grounds the isolated secondary side; galvanically separated from VDD1/GND1. |
| B1–B4 | Side B digital I/O | Four corresponding isolated output channels; drive 50 Ω-terminated traces up to 150 Mbps. |
| EN1, EN2 | Output enable (active-high) | Tri-states all outputs on respective side; enables single-point control for power sequencing or fault shutdown. |
| SMb | Sleep mode (active-low) | Puts entire device into 750 µA/side ultra-low-power state while retaining wake capability via internal always-on channel. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift of optocouplers; provides stable 10 ns propagation delay across full temperature range. |
| Reinforced safety certification | UL 1577 (6000 VRMS), VDE 60747-17, CSA 62368-1/60601-1 - enables single-component compliance for medical and EV battery systems. |
| Automotive-grade qualification | AEC-Q100 Grade 1 (–40 to 125 °C) with AIAG PPAP and IMDS support - meets OEM production traceability and material disclosure requirements. |
| Low-power optimization | 0.25 mA/channel lower quiescent current vs. Si86S6x series - extends runtime in always-on BMS monitoring circuits. |
| Fail-safe output selection | Ordering option determines default output state (high or low) during VDD1 undervoltage - prevents unsafe actuation in power-loss scenarios. |
Applications
| Battery Management System (BMS) | Onboard Charger (OBC) |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and pack contactor control signals between high-voltage battery stack and low-voltage MCU. IC Role / Device Role / Timing Role: Provides reinforced 6000 VRMS isolation for analog front-end ADC references and digital status lines, with 10 ns timing precision for synchronized sampling. Use Value: Enables ASIL-B compliant monitoring without external optocoupler arrays or discrete isolation components, reducing BOM count and board area. |
Use Scenario: Isolating PWM gate drive signals and current sense feedback between AC/DC and DC/DC stages in 11 kW OBC. IC Role / Device Role / Timing Role: Transmits high-frequency switching commands across isolation barrier with <3.5 ns pulse width distortion to maintain dead-time integrity. Use Value: Supports 150 Mbps data rate required for fast-loop digital control in GaN-based OBC topologies while meeting CISPR-25 EMI limits. |
| Traction Inverter Control | Industrial Motor Drive |
|
Use Scenario: Isolating MCU PWM outputs and fault reporting signals to IGBT/SiC gate driver ICs in electric vehicle drivetrain inverters. IC Role / Device Role / Timing Role: Delivers 100 kV/µs CMTI immunity to withstand >50 kV/µs dV/dt noise from 800 V bus switching transients. Use Value: Prevents false triggering of gate drivers during high-speed switching, improving system reliability and reducing field failure rates. |
Use Scenario: Isolating encoder position data and safety torque off (STO) signals in servo drives operating in factory automation environments. IC Role / Device Role / Timing Role: Provides dual-redundant isolated channels for STO path with fail-safe default-low configuration to enforce safe stop on power loss. Use Value: Meets IEC 61800-5-2 functional safety requirements without external watchdog timers or redundant isolators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-AS2R | Higher power consumption (≈0.5 mA/channel more), no sleep mode, same pinout and 6000 VRMS rating. | Preferred for cost-sensitive industrial designs where ultra-low quiescent current is not required. | Select when BOM cost priority outweighs battery life or thermal constraints in sealed enclosures. |
| ADUM4401BRWZ | 4-channel, 100 Mbps, 5000 VRMS, no AEC-Q100, different pinout (SOIC-16 NB), higher propagation delay (15 ns). | Suitable for non-automotive industrial PLCs with less stringent CMTI or safety certification needs. | Choose only if existing layout uses narrow-body SOIC-16 and 100 Mbps suffices; not drop-in compatible due to pin mismatch. |
Compared with SI86SL41BE-AS2R, SI8641ED-AS2R trades lower quiescent power for higher performance headroom, while ADUM4401BRWZ offers legacy compatibility at reduced isolation strength and automotive readiness - making SI86SL41BE-AS2R optimal for next-gen EV power electronics requiring AEC-Q100, 6000 VRMS, and sub-1 µA sleep current.
Availability
SI86SL41BE-AS2R 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 SI86SL41BE-AS2R 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 Si86Sxx family-including SI86SL41BE-AS2R-is engineered for high-reliability isolated communication in electric vehicles and medical equipment, emphasizing reinforced safety, low power, and AEC-Q100 compliance from wafer fabrication through final test.
FAQ
What is the isolation voltage rating of SI86SL41BE-AS2R and which safety standards does it meet?
SI86SL41BE-AS2R provides 6000 VRMS isolation for 1 minute per UL 1577 and is certified to VDE 60747-17 (reinforced insulation), CSA 62368-1 and 60601-1, and CQC GB4943.1. These approvals validate its use in high-voltage automotive and medical systems where reinforced insulation is mandated by end-equipment standards.
Does SI86SL41BE-AS2R support fail-safe output configuration, and how is it selected?
Yes, SI86SL41BE-AS2R offers ordering-option-selectable fail-safe mode: default-high or default-low output during VDD1 undervoltage. This is implemented at silicon level and cannot be changed post-manufacture. The "BE" suffix in SI86SL41BE-AS2R indicates the default-low variant per Skyworks' ordering nomenclature.
How does the SMb pin function in SI86SL41BE-AS2R, and what is its power impact?
The SMb pin in SI86SL41BE-AS2R is an active-low sleep mode control. When pulled low, it reduces total device current to 750 µA per side while keeping one channel active to monitor SMb state. When released (high or open), the device resumes full operation with 150 Mbps capability - enabling dynamic power gating in battery-powered BMS modules.
What are the key timing parameters of SI86SL41BE-AS2R, and how do they compare to standard optocouplers?
SI86SL41BE-AS2R delivers 10 ns typical propagation delay, 3.5 ns pulse width distortion, and no start-up initialization delay - versus >3 µs delays and variable warm-up times in legacy optocouplers. This enables precise synchronization in closed-loop motor control and high-speed isolated ADC sampling without calibration overhead.
Is SI86SL41BE-AS2R pin-compatible with other devices in the Si86Sxx family?
SI86SL41BE-AS2R shares identical WB SOIC-16 pinout with Si86S64x/L4x variants (e.g., SI86S640BE-AS2R), including VDD1/GND1/A1–A4/EN1/SMb on side A and VDD2/GND2/B1–B4/EN2 on side B. However, functional differences (e.g., sleep mode presence, power optimization) mean firmware and power design must be verified per datasheet section 3.4.1.
SI86SL41BE-AS2R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm 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:
- 6000Vrms
- 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
SI86SL41BE-AS2R FAQ
1.How can I place an order for SI86SL41BE-AS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL41BE-AS2R 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 SI86SL41BE-AS2R reliable?
The price and inventory of SI86SL41BE-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL41BE-AS2R is usually 5 days.
3.What payment methods are accepted for SI86SL41BE-AS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL41BE-AS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL41BE-AS2R?
SI86SL41BE-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL41BE-AS2R 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 SI86SL41BE-AS2R?
For technical support, including SI86SL41BE-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL41BE-AS2R requirements.
6.How does Aetrix verify that SI86SL41BE-AS2R is sourced from the original manufacturer or authorized distributors?
All SI86SL41BE-AS2R 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 SI86SL41BE-AS2R meets industry standards.
7.What is the process for return or replacement of SI86SL41BE-AS2R?
All SI86SL41BE-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL41BE-AS2R, 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 SI86SL41BE-AS2R part is unused and in its original packaging.
Return procedure for SI86SL41BE-AS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL41BE-AS2R Tags
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ISO1212DBQR
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SI8710AC-B-ISR
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