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Skyworks Solutions Inc. SI86SM41BE-IS2R
- Part No.:
- SI86SM41BE-IS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SM41BE-IS2R.pdf
- Description:
- 3.75 KVRMS SLEEP MODE ISOLATOR,
- Quantity:
- Payment:
- Shipping:
Inventory:4,010
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Product details
Overview
SI86SM41BE-IS2R from Skyworks Solutions is a 4-channel reinforced digital isolator with sleep mode control (SMb pin), 150 Mbps data rate, 10 ns typical propagation delay, and 6000 VRMS isolation rating in a WB SOIC-16 package. It operates across 2.25–5.5 V supplies and supports industrial motor control, isolated ADC/DAC interfaces, and battery management systems.
For engineers reviewing the SI86SM41BE-IS2R datasheet, SI86SM41BE-IS2R pinout, SI86SM41BE-IS2R application, or SI86SM41BE-IS2R equivalent, this page delivers verified specifications, validated pin functions, automotive-grade safety certifications (AEC-Q100, IEC 60747-17), and real-world use context for high-noise, high-reliability isolated signal transmission.
Technical Context
The SI86SM41BE-IS2R implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity (100 kV/µs CMTI). Its architecture includes independent UVLO and reset circuitry per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.
Sleep mode is controlled via the active-low SMb pin: driving SMb low places both sides into ultra-low-power state (750 µA/side) while retaining one always-on channel to monitor SMb status; releasing SMb restores full operation. All four channels support bidirectional data flow with Schmitt-trigger + CMOS threshold inputs and tri-state outputs enabled by EN1/EN2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including SPI clock domains up to 75 MHz. |
| Propagation delay | 10 ns typical - enables tight timing budgets in closed-loop motor control and real-time power conversion feedback paths. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements for industrial inverters and EV onboard chargers per UL 1577 and IEC 60747-17. |
| Supply voltage | 2.25–5.5 V - allows direct interfacing with 3.3 V and 5 V logic without level shifters in mixed-voltage systems. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive and industrial ambient environments without derating. |
| Sleep current | 750 µA per side - reduces standby power in battery-backed systems such as BMS and portable medical devices. |
| CMTI | ≥100 kV/µs - ensures reliable operation in high-dV/dt environments like SiC/GaN gate driver circuits and motor phase legs. |
Pinout & Package
SI86SM41BE-IS2R uses a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance ≥8.3 mm, supporting 6000 VRMS working voltage and reinforced insulation per IEC 60747-17.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply | Supplies isolated input-side logic; requires 0.1 µF + 10 µF bypass capacitors placed adjacent to pins. |
| A1–A4 | Side A digital I/O | Four unidirectional or bidirectional data inputs/outputs on main side; compatible with CMOS/Schmitt-trigger logic levels. |
| SMb | Sleep mode control | Active-low pin that globally disables transmitter/receiver circuits on both sides while retaining wake-up capability. |
| Isolation Barrier | Internal die separation | Robust semiconductor barrier providing galvanic isolation; no external components required for basic operation. |
| B1–B4 | Side B digital I/O | Four isolated output-side signals; electrically decoupled from Side A with precise timing alignment to inputs. |
| VDD2, GND2 | Side B power supply | Independent secondary-side supply; enables split-rail operation and fault containment between domains. |
Key Features
| Feature | Design Value |
|---|---|
| Sleep mode with SMb pin | Reduces total device current to 1.5 mA (750 µA/side) without compromising wake-up latency or isolation integrity. |
| Reinforced safety certification | UL 1577 (6000 VRMS), VDE 60747-17, CSA 62368-1/60601-1 - eliminates need for system-level re-certification in medical and industrial end equipment. |
| No start-up initialization | Outputs follow inputs immediately after VDD exceeds UVLO+ (2.18 V typical); no firmware or configuration required. |
| Fail-safe output selection | Ordering option defines default output state (high or low) during VDD1 loss while VDD2 remains powered - critical for safe shutdown in motor drives. |
| High CMTI immunity | ≥100 kV/µs common-mode transient immunity - prevents data corruption in high-frequency switching environments (e.g., SiC inverters). |
Applications
| Industrial Motor Control | Isolated ADC/DAC Interface |
|---|---|
|
Use Scenario: Gate drive signal isolation in 3-phase inverter stacks using SiC MOSFETs. IC Role / Device Role / Timing Role: Transmits PWM signals across isolation barrier with <10 ns propagation delay and <3.5 ns pulse width distortion. Use Value: Enables precise dead-time control and prevents shoot-through faults during fast switching transitions. |
Use Scenario: Isolating serial interface between microcontroller and precision ADC in programmable logic controllers. IC Role / Device Role / Timing Role: Provides galvanically isolated SPI communication path with MCSb/MCLK/MO/MI pins on controller side and SCSb/SCLK/SI/SO on ADC side. Use Value: Eliminates ground loop noise and preserves 16-bit measurement accuracy in noisy factory-floor environments. |
| Automotive Battery Management | Onboard Charger Communication |
|
Use Scenario: Cell voltage monitoring and balancing command isolation in high-voltage EV battery packs (up to 900 V). IC Role / Device Role / Timing Role: Transfers analog front-end data and control signals across reinforced barrier with AEC-Q100 qualification and –40 to 125 °C operation. Use Value: Ensures functional safety compliance (ISO 26262 ASIL-B ready) and long-term reliability under thermal cycling stress. |
Use Scenario: Isolating CAN FD communication between OBC controller and vehicle ECU in AC charging systems. IC Role / Device Role / Timing Role: Provides bidirectional signal isolation for CAN transceiver side with fail-safe default-low output during power loss. Use Value: Maintains diagnostic continuity and prevents false fault reporting during brown-out conditions in charging sessions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2401ARWZ | 4-channel, 1 Mbps max data rate; 50 ns propagation delay; 2500 VRMS isolation; no sleep mode pin. | Lower speed and isolation rating limit use in SiC/GaN systems and EV traction inverters. | Choose ADUM2401ARWZ only for cost-sensitive, low-speed industrial PLC I/O modules where 6000 VRMS is not required. |
| ISO6741QDWR | 4-channel, 50 Mbps max data rate; 11 ns propagation delay; 5000 VRMS; integrated LDO; no SMb pin. | Lacks dedicated sleep control and failsafe output selection; limited to 5000 VRMS for lower-voltage BMS designs. | Prefer ISO6741QDWR when board space is constrained and integrated 3.3 V LDO simplifies power design-but verify CMTI (85 kV/µs) suffices for target application. |
Compared with ADUM2401ARWZ and ISO6741QDWR, SI86SM41BE-IS2R delivers 3× higher data rate, 60% lower propagation delay, 20% higher isolation voltage, and unique sleep-mode control-making it optimal for next-generation EV, renewable energy, and high-fidelity industrial sensing systems requiring both performance and power efficiency.
Availability
SI86SM41BE-IS2R is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management systems, and isolated ADC/DAC interfaces requiring stable component supply across extended product lifecycles.
Supply support for SI86SM41BE-IS2R 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 high-performance analog semiconductors, specializing in RF, timing, and isolation technologies for demanding communications and power systems.
The Si86Sxx family was designed specifically for high-reliability, high-speed galvanic isolation in automotive traction inverters, industrial automation, and medical equipment-emphasizing reinforced safety, low-latency timing, and ultra-low-power modes.
FAQ
What is the isolation voltage rating of SI86SM41BE-IS2R?
SI86SM41BE-IS2R is rated for 6000 VRMS isolation for 1 minute per UL 1577, with reinforced insulation certification per IEC 60747-17, VDE 62368-1, and CSA 60601-1. This rating applies specifically to the WB SOIC-16 package variant and supports high-voltage applications including EV onboard chargers and industrial inverters.
Does SI86SM41BE-IS2R require external startup initialization?
No, SI86SM41BE-IS2R requires no startup initialization. Outputs begin tracking inputs within 0.3 ms after VDD1 and VDD2 exceed their UVLO+ thresholds (2.18 V typical). The RF modulation architecture eliminates boot-up sequences, making SI86SM41BE-IS2R suitable for safety-critical systems requiring deterministic behavior at power-on.
How does the SMb pin function in SI86SM41BE-IS2R?
The SMb pin in SI86SM41BE-IS2R is an active-low sleep mode control. When pulled low, it disables all transmitter and receiver circuits on both sides while maintaining one always-on channel to monitor SMb status. Current drops to 750 µA per side. Releasing SMb (high or open) restores full operation without reset.
What safety certifications apply to SI86SM41BE-IS2R?
SI86SM41BE-IS2R holds AEC-Q100 Grade 1 qualification and pending certifications for UL 1577 (6000 VRMS), VDE 60747-17 (reinforced), CSA 62368-1, CSA 60601-1, and CQC GB4943.1. These approvals validate its use in automotive, medical, and industrial safety-critical systems without additional system-level isolation testing.
Can SI86SM41BE-IS2R be used in SPI isolation applications?
SI86SM41BE-IS2R is not a dedicated SPI isolator like the Si86SSx series; it provides four general-purpose isolated channels. For SPI, it can isolate individual lines (e.g., MOSI, MISO, SCLK, CS) but lacks built-in SPI protocol awareness, direction control, or buffered MI functionality found in Si86SS41/51. Use SI86SS41 for optimized SPI isolation.
SI86SM41BE-IS2R 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:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 100kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 14ns, 14ns
- Pulse Width Distortion (Max):
- 2ns
- 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:
- 16-SOIC
SI86SM41BE-IS2R FAQ
1.How can I place an order for SI86SM41BE-IS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SM41BE-IS2R 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 SI86SM41BE-IS2R reliable?
The price and inventory of SI86SM41BE-IS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SM41BE-IS2R is usually 5 days.
3.What payment methods are accepted for SI86SM41BE-IS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SM41BE-IS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SM41BE-IS2R?
SI86SM41BE-IS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SM41BE-IS2R 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 SI86SM41BE-IS2R?
For technical support, including SI86SM41BE-IS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SM41BE-IS2R requirements.
6.How does Aetrix verify that SI86SM41BE-IS2R is sourced from the original manufacturer or authorized distributors?
All SI86SM41BE-IS2R 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 SI86SM41BE-IS2R meets industry standards.
7.What is the process for return or replacement of SI86SM41BE-IS2R?
All SI86SM41BE-IS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SM41BE-IS2R, 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 SI86SM41BE-IS2R part is unused and in its original packaging.
Return procedure for SI86SM41BE-IS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SM41BE-IS2R 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
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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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