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Skyworks Solutions Inc. SI86SL40BE-IS2R
- Part No.:
- SI86SL40BE-IS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SL40BE-IS2R.pdf
- Description:
- 6.0 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:1,983
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Product details
Overview
SI86SL40BE-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 mode (default high/low), and operates across –40 to 125 °C with 2.25–5.5 V supply on both sides. It is used in battery management systems and traction inverters requiring robust galvanic isolation.
For engineers reviewing the SI86SL40BE-IS2R datasheet, SI86SL40BE-IS2R pinout, SI86SL40BE-IS2R application, or SI86SL40BE-IS2R equivalent, key selection criteria include its 6000 VRMS reinforced insulation per UL 1577 and VDE 60747-17, sleep-mode capability via SMb pin, and compatibility with isolated SPI and bidirectional bus architectures in high-noise automotive power electronics.
Technical Context
The SI86SL40BE-IS2R implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and enabling immediate operation after power-up. Its architecture supports independent undervoltage lockout (UVLO) and reset monitoring on both sides (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.
It integrates four isolated channels with configurable directionality and includes an active-low SMb pin that places the device into sleep mode (750 µA per side) while retaining one always-on channel to monitor SMb state. Fail-safe output defaults are set by ordering option and enforced during unpowered input-side conditions with powered output-side supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces including QSPI and isolated SPI without timing bottlenecks. |
| Isolation rating | 6000 VRMS - meets reinforced insulation requirements per UL 1577 and VDE 60747-17 for safety-critical automotive and industrial applications. |
| Propagation delay | 10 ns typical - enables precise timing synchronization between isolated domains in motor control and power inverter feedback loops. |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic families and simplifies mixed-voltage system design. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive use including onboard chargers and battery electric vehicle power stages. |
| CMTI | ≥100 kV/µs - ensures reliable operation in high dv/dt environments such as SiC/GaN-based inverters without false triggering. |
| AEC-Q100 grade | Grade 1 - certified for automotive applications with full PPAP documentation and IMDS/CAMDS compliance support. |
Pinout & Package
SI86SL40BE-IS2R is housed in a narrow-body SOIC-16 package (NB SOIC-16) with 7.5 mm creepage/clearance, supporting 6000 VRMS isolation. Pin functions are defined per Figure 2 (Si86S64x/L4x) in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power and ground | Supplies isolated input-side logic; bypassed with 0.1 µF + 10 µF capacitors placed adjacent to pins. |
| A1–A4 | Side A digital I/O | Four unidirectional or bidirectional input channels; compatible with CMOS/Schmitt-trigger logic levels. |
| VDD2, GND2 | Side B power and ground | Supplies isolated output-side logic; independent of Side A supply for true galvanic separation. |
| B1–B4 | Side B digital I/O | Four corresponding isolated output channels; output state follows A-side inputs with configurable fail-safe default. |
| EN1, EN2 | Active-high enable | Tri-states all outputs on respective side when low; enables single-point control of output drivers. |
| SMb | Active-low sleep mode | Enters ultra-low-power sleep (750 µA/side) when pulled low; retains wake-up capability via dedicated monitoring channel. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot delay - outputs become valid within 0.3 ms of VDD stabilization, critical for fast-reacting safety systems. |
| Reinforced insulation | 6000 VRMS withstand per UL 1577 and VDE 60747-17 - satisfies reinforced insulation requirements for functional safety in ISO 26262 ASIL-B/C automotive subsystems. |
| Selectable fail-safe mode | Ordering option sets default output state (high or low) during input-side power loss - prevents undefined states in BMS fault detection circuits. |
| Sleep mode with SMb | Reduces quiescent current to 750 µA per side while maintaining wake-up readiness - extends standby time in always-on vehicle modules. |
| High CMTI immunity | ≥100 kV/µs common-mode transient immunity - maintains signal integrity in high-switching-frequency SiC inverter gate drive circuits. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
Use Scenario: Isolating cell voltage monitoring and pack-level communication between high-voltage battery stack and MCU. IC Role / Device Role / Timing Role: Digital isolator providing galvanic separation for analog front-end ADC data and digital status signals across 400–800 V DC bus. Use Value: Enables accurate, noise-immune voltage sampling at 150 Mbps with 10 ns propagation delay, meeting ASIL-D diagnostic timing constraints. | Use Scenario: Isolating PWM gate drive signals and fault feedback between inverter MCU and SiC power modules. IC Role / Device Role / Timing Role: Bidirectional isolator conveying gate commands and DESAT/overcurrent responses across isolation barrier in real-time control loop. Use Value: 100 kV/µs CMTI and 10 ns propagation delay ensure reliable switching coordination and fast fault shutdown in 100 kHz+ switching inverters. |
| Onboard Charger (OBC) | Charging Station Communication |
Use Scenario: Isolating CAN FD and digital control signals between AC/DC stage controller and DC/DC stage in bidirectional OBC. IC Role / Device Role / Timing Role: Low-power isolator handling isolated SPI for ADC/DAC configuration and discrete I/O for interlock and thermal monitoring. Use Value: Sleep mode (750 µA/side) reduces standby power consumption while maintaining CAN FD link readiness during vehicle charging pauses. | Use Scenario: Isolating Ethernet PHY interface and control signals between charging station controller and EVSE communication module. IC Role / Device Role / Timing Role: High-reliability isolator protecting 100BASE-TX data lines and GPIOs from ground potential differences and ESD events. Use Value: 6000 VRMS isolation and 8 kV HBM ESD rating meet IEC 62196-2 and UL 2231 requirements for public charging infrastructure. |
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, 5000 VRMS, no sleep mode, 2.5–5.5 V supply | Lacks AEC-Q100 qualification and SMb-controlled sleep; suitable for industrial but not automotive-grade designs | Choose ADUM140D0BRIZ only if automotive qualification and ultra-low-power sleep are not required. |
| ISO7741FDWR | 4-channel, 100 Mbps, 5000 VRMS, 2.25–5.5 V, no SMb pin, lower CMTI (85 kV/µs) | Lower data rate and CMTI limit suitability to non-inverter applications like isolated ADC interfaces | Select ISO7741FDWR where cost sensitivity outweighs need for 150 Mbps or >100 kV/µs CMTI in non-safety-critical roles. |
Compared with ADUM140D0BRIZ and ISO7741FDWR, SI86SL40BE-IS2R delivers higher isolation (6000 vs. 5000 VRMS), automotive qualification, and integrated sleep control-making it uniquely suited for ASIL-B/C traction inverter and BMS signal isolation where reliability, timing precision, and power efficiency are co-constrained.
Availability
SI86SL40BE-IS2R is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply with automotive-grade traceability and long-term lifecycle support.
Supply support for SI86SL40BE-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 Si86S6xx/Lxx family-including SI86SL40BE-IS2R-is designed specifically for high-reliability galvanic isolation in automotive electrification and industrial power conversion, emphasizing reinforced safety certification, low-power operation, and noise immunity in harsh EMI environments.
FAQ
What is the isolation voltage rating of SI86SL40BE-IS2R and which safety standards does it meet?
SI86SL40BE-IS2R provides 6000 VRMS reinforced isolation per UL 1577 and VDE 60747-17. It is certified to CSA 62368-1 and 60601-1, and CQC GB4943.1. These ratings are validated for 1-minute withstand and support functional safety requirements in automotive battery management and traction inverter systems where reinforced insulation is mandated.
Does SI86SL40BE-IS2R require external initialization or configuration after power-up?
No, SI86SL40BE-IS2R requires no start-up initialization due to its RF on/off keying architecture. Outputs become valid within 0.3 ms of VDD crossing the UVLO threshold (~2.18 V), and the device enters normal operation immediately-eliminating boot delays critical in automotive safety-critical control loops.
How does the SMb pin function in SI86SL40BE-IS2R and what power savings does it enable?
The SMb pin in SI86SL40BE-IS2R is an active-low sleep mode control. When driven low, it reduces total quiescent current to 750 µA per side while keeping one channel active to monitor SMb state. This enables rapid wake-up (<1 µs) and is ideal for intermittent-operation modules in battery electric vehicles where standby power must be minimized.
What is the maximum data rate supported by SI86SL40BE-IS2R and how does it compare to legacy optocouplers?
SI86SL40BE-IS2R supports up to 150 Mbps, significantly exceeding legacy optocouplers (typically ≤10 Mbps). Its 10 ns typical propagation delay and 3.5 ns pulse width distortion enable precise timing in high-speed serial interfaces such as isolated SPI and QSPI-making it suitable for real-time control in SiC/GaN-based power converters where optocouplers introduce unacceptable latency.
Can SI86SL40BE-IS2R be used in bidirectional communication applications such as isolated QSPI buses?
Yes, SI86SL40BE-IS2R supports bidirectional signal routing through its four isolated channels and configurable EN1/EN2 pins. While not a dedicated QSPI isolator like Si86SQ44, its channel independence and tri-state outputs allow implementation of half-duplex isolated QSPI data lanes-particularly useful in memory interface isolation for automotive domain controllers requiring 150 Mbps throughput and reinforced safety.
SI86SL40BE-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:
- 4/0
- 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
SI86SL40BE-IS2R FAQ
1.How can I place an order for SI86SL40BE-IS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL40BE-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 SI86SL40BE-IS2R reliable?
The price and inventory of SI86SL40BE-IS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL40BE-IS2R is usually 5 days.
3.What payment methods are accepted for SI86SL40BE-IS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL40BE-IS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL40BE-IS2R?
SI86SL40BE-IS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL40BE-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 SI86SL40BE-IS2R?
For technical support, including SI86SL40BE-IS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL40BE-IS2R requirements.
6.How does Aetrix verify that SI86SL40BE-IS2R is sourced from the original manufacturer or authorized distributors?
All SI86SL40BE-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 SI86SL40BE-IS2R meets industry standards.
7.What is the process for return or replacement of SI86SL40BE-IS2R?
All SI86SL40BE-IS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL40BE-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 SI86SL40BE-IS2R part is unused and in its original packaging.
Return procedure for SI86SL40BE-IS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL40BE-IS2R Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
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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