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Skyworks Solutions Inc. SI86SL41BE-IS2R
- Part No.:
- SI86SL41BE-IS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SL41BE-IS2R.pdf
- Description:
- 6.0 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:1,292
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Product details
Overview
SI86SL41BE-IS2R 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 a narrow-body SOIC-16 package. It is used in battery management systems and isolated ADC interfaces where high noise immunity and safety-certified signal transfer are required.
For engineers reviewing the SI86SL41BE-IS2R datasheet, SI86SL41BE-IS2R pinout, SI86SL41BE-IS2R application, or SI86SL41BE-IS2R equivalent, key selection criteria include its 6000 VRMS reinforced insulation (IEC 60747-17), 10 ns typical propagation delay, 3.5 ns pulse width distortion, sleep-mode capability via SMb pin, and compatibility with 2.25–5.5 V dual supplies on isolated sides.
Technical Context
The SI86SL41BE-IS2R implements RF-based on/off keying across a semiconductor isolation barrier-eliminating start-up initialization and enabling robust noise immunity. Its architecture supports bidirectional channel operation without direction pins, and integrates undervoltage lockout (UVLO) with independent monitoring per side (VDD1/VDD2).
It includes a dedicated active-low SMb pin for sleep mode control, reducing quiescent current to 750 µA per side while retaining one always-active channel for wake-up detection. Fail-safe output state (default high or low) is determined by ordering option and applies when one supply is unpowered but the other remains active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including SPI and isolated sensor interfaces. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for automotive and industrial safety-critical systems. |
| Propagation delay | 10 ns (typical) - enables precise timing alignment in motor control gate drivers and real-time feedback loops. |
| Pulse width distortion | 3.5 ns (typical) - ensures minimal duty-cycle degradation for clock or PWM signal isolation. |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains on both isolated sides. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications and industrial environments with thermal stress. |
| Transient immunity | ≥100 kV/µs - provides immunity against fast-rising common-mode transients in power electronics switching nodes. |
Pinout & Package
SI86SL41BE-IS2R is housed in a narrow-body SOIC-16 (NB SOIC-16) package with 1.27 mm pitch, 10.3 mm × 7.5 mm body size, and creepage/clearance compliant with reinforced insulation standards.
| 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 bypass capacitors. |
| VDD2, GND2 | Side B power domain | Supplies and grounds the output-side logic; electrically isolated from Side A with ≥6000 VRMS withstand. |
| A1–A4 | Input channels (Side A) | Digital inputs with Schmitt-trigger + CMOS thresholds; tolerate 0.15×VDDx hysteresis for noise rejection. |
| B1–B4 | Output channels (Side B) | CMOS outputs with ~50 Ω impedance; support tri-state via EN1/EN2; default state set by fail-safe option. |
| SMb | Sleep mode control | Active-low pin that disables all transmitters except one wake-up channel; reduces quiescent current to 750 µA/side. |
| EN1, EN2 | Output enable (Side A/B) | Active-high pins placing respective side's outputs into high-impedance state; usable for bus arbitration or power gating. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift issues of optocouplers; no start-up initialization required. |
| Reinforced safety certification | UL 1577, CSA 62368-1/60601-1, VDE 60747-17, CQC GB4943.1 - enables single-component compliance in medical and EV systems. |
| Selectably fail-safe output | Ordering option defines default output state (high or low) during VDD1 loss while VDD2 remains powered - critical for safe shutdown sequencing. |
| Low-power optimization | Consumes 0.25 mA/channel less quiescent current than Si86S6x counterparts - extends battery life in always-on BMS monitoring paths. |
| High CMTI | ≥100 kV/µs common-mode transient immunity - maintains signal integrity in noisy inverter gate-drive environments. |
Applications
| Battery Management System (BMS) | Isolated ADC Interface |
|---|---|
Use Scenario: Monitoring cell voltages and temperatures in high-voltage EV battery packs with galvanic separation between measurement and control domains. IC Role / Device Role / Timing Role: Isolates analog front-end SPI data streams from MCU while preserving timing integrity for synchronized sampling. Use Value: Enables 6000 VRMS reinforced insulation to meet ISO 6469-3 and ASIL-D functional safety requirements without external protection components. | Use Scenario: Transmitting digitized sensor data from isolated high-side current/voltage monitors to system controllers in industrial power supplies. IC Role / Device Role / Timing Role: Provides bidirectional SPI isolation between ADC and host processor with <10 ns propagation delay for sub-microsecond sampling alignment. Use Value: Maintains 150 Mbps throughput and 3.5 ns pulse width distortion to prevent data corruption in high-resolution (16+ bit) ADC readouts. |
| Onboard Charger (OBC) | Traction Inverter Control |
Use Scenario: Isolating communication between AC/DC stage controller and DC/DC auxiliary supply in EV onboard chargers. IC Role / Device Role / Timing Role: Transfers status, fault, and configuration signals across isolation barrier with fail-safe default-low output to enforce safe state on controller loss. Use Value: Leverages AEC-Q100 qualification and –40 to 125 °C operation to survive under-hood thermal cycling without derating. | Use Scenario: Isolating gate driver control signals from MCU in high-power traction inverters with >800 V DC-link voltage. IC Role / Device Role / Timing Role: Delivers precise, low-jitter PWM edge timing to IGBT/SiC gate drivers with <10 ns propagation delay and <4 ns skew. Use Value: Achieves ≥100 kV/µs CMTI to suppress false triggering caused by fast dv/dt switching transients in SiC-based inverters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM140D0BRIZ | 4-channel, 150 Mbps, 3750 VRMS isolation, 2.5–5.5 V supply, no sleep mode pin | Lacks reinforced 6000 VRMS rating and AEC-Q100 qualification; suitable for industrial but not automotive BMS | Choose when cost sensitivity outweighs safety certification needs and 3750 VRMS suffices. |
| ISO7741FDWR | 4-channel, 100 Mbps, 5000 VRMS, 2.25–5.5 V, integrated LDO on secondary side | Lower data rate and isolation rating; includes LDO but no SMb sleep control; not AEC-Q100 qualified | Prefer when local regulation on isolated side is needed and 100 Mbps meets bandwidth requirements. |
Compared with ADUM140D0BRIZ and ISO7741FDWR, SI86SL41BE-IS2R delivers higher isolation (6000 VRMS), automotive qualification, and active sleep-mode control-making it uniquely suited for safety-critical, thermally demanding EV subsystems where power efficiency and regulatory compliance are non-negotiable.
Availability
SI86SL41BE-IS2R is available at Aetrix Electronics and suitable for battery management systems, traction inverter controls, and onboard charger designs requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI86SL41BE-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 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-IS2R-is designed specifically for high-reliability, safety-certified digital signal isolation in electric vehicles, renewable energy systems, and medical equipment where reinforced insulation and AEC-Q100 compliance are mandatory.
FAQ
What is the isolation rating and safety certification status of SI86SL41BE-IS2R?
SI86SL41BE-IS2R provides 6000 VRMS reinforced isolation per UL 1577 (1 minute) and is certified to IEC 60747-17, CSA 62368-1/60601-1, and CQC GB4943.1. These approvals are documented in Skyworks' official safety reports and support compliance in automotive BMS and medical isolation applications. SI86SL41BE-IS2R is AEC-Q100 qualified for Grade 0 (–40 to 125 °C).
Does SI86SL41BE-IS2R support fail-safe output behavior, and how is it configured?
Yes, SI86SL41BE-IS2R offers selectable fail-safe output: default high or default low when one supply (e.g., VDD1) is unpowered while the other (VDD2) remains active. This is an ordering-option feature-determined at manufacture-not configurable in-circuit. The SI86SL41BE-IS2R variant uses the "BE" suffix indicating default-low fail-safe behavior per Skyworks' ordering guide.
How does the SMb pin function in SI86SL41BE-IS2R, and what power savings does it enable?
The SMb pin in SI86SL41BE-IS2R is an active-low sleep mode control. When pulled low, it disables all transmitter circuits except one wake-up channel, reducing quiescent current to 750 µA per side. This enables significant power savings in always-on monitoring paths-such as BMS cell voltage polling-without sacrificing fast wake-up (<1 µs) or signal integrity.
What are the supply voltage requirements and bypassing recommendations for SI86SL41BE-IS2R?
SI86SL41BE-IS2R operates from 2.25 V to 5.5 V on both VDD1 and VDD2 independently. Each supply requires a 0.1 µF ceramic capacitor placed adjacent to the pin plus a 10 µF bulk capacitor nearby. Skyworks specifies this dual-capacitor network to suppress high-frequency noise and sustain transient current demands during 150 Mbps data transitions.
Can SI86SL41BE-IS2R be used in SPI isolation applications, and which pins handle SPI signals?
No-SI86SL41BE-IS2R is a general-purpose 4-channel digital isolator without dedicated SPI protocol logic or pin assignments like MCSb/MCLK/MO/MI. For SPI isolation, Skyworks offers the Si86SS41/51 family. SI86SL41BE-IS2R can isolate individual SPI lines (e.g., SCLK, MOSI, MISO, CS) manually, but lacks built-in SPI timing synchronization or buffered MI functionality found in purpose-built SPI isolators.
SI86SL41BE-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:
- 6000Vrms
- Common Mode Transient Immunity (Min):
- 100kV/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:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI86SL41BE-IS2R FAQ
1.How can I place an order for SI86SL41BE-IS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL41BE-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 SI86SL41BE-IS2R reliable?
The price and inventory of SI86SL41BE-IS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL41BE-IS2R is usually 5 days.
3.What payment methods are accepted for SI86SL41BE-IS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL41BE-IS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL41BE-IS2R?
SI86SL41BE-IS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL41BE-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 SI86SL41BE-IS2R?
For technical support, including SI86SL41BE-IS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL41BE-IS2R requirements.
6.How does Aetrix verify that SI86SL41BE-IS2R is sourced from the original manufacturer or authorized distributors?
All SI86SL41BE-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 SI86SL41BE-IS2R meets industry standards.
7.What is the process for return or replacement of SI86SL41BE-IS2R?
All SI86SL41BE-IS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL41BE-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 SI86SL41BE-IS2R part is unused and in its original packaging.
Return procedure for SI86SL41BE-IS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL41BE-IS2R Tags
-
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
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ISO7721DR
Texas Instruments
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ISO7721FDR
Texas Instruments
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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