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Skyworks Solutions Inc. SI86SL42HC-IS1R
- Part No.:
- SI86SL42HC-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- -
- Datasheet:
-
SI86SL42HC-IS1R.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:4,395
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Product details
Overview
SI86SL42HC-IS1R 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 two forward and two reverse isolated channels, Schmitt-trigger inputs, tri-state outputs with enable, and operates across –40 to 125 °C in a WB SOIC-16 package. It is used in battery management systems and traction inverters where high noise immunity and fail-safe operation are critical.
For engineers reviewing the SI86SL42HC-IS1R datasheet, SI86SL42HC-IS1R pinout, SI86SL42HC-IS1R application, or SI86SL42HC-IS1R equivalent, this page delivers verified specifications, validated pin functions, automotive-grade safety certifications (UL 1577, VDE 60747-17, CSA 62368-1), and real-world use context for isolated SPI, motor control, and high-voltage power conversion interfaces.
Technical Context
The SI86SL42HC-IS1R implements RF-based on/off keying across a semiconductor isolation barrier-eliminating start-up initialization and enabling robust noise immunity (100 kV/µs CMTI). Its architecture supports independent undervoltage lockout (UVLO) and reset on both sides (VDD1/VDD2), with fail-safe output default selectable at order time (high or low).
It integrates sleep mode via SMb pin (active-low), reducing quiescent current to 750 µA per side while retaining one always-on channel for wake-up detection. Unlike standard Si86S6x variants, the "SL" suffix denotes optimized low-power operation-0.25 mA/channel lower quiescent current-with no sacrifice in pin compatibility or isolation rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces including isolated SPI and QSPI without timing bottlenecks. |
| 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 (typ) - enables precise timing alignment in closed-loop motor control and fast ADC/DAC isolation paths. |
| Supply voltage | 2.25–5.5 V - allows direct interface with 3.3 V and 5 V logic domains on both isolated sides without level-shifting. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications including onboard chargers and battery management units. |
| CMTI | ≥100 kV/µs - ensures reliable operation in high-dv/dt environments such as IGBT gate drivers and power inverter feedback loops. |
| AEC-Q100 grade | Grade 1 - certified for automotive use with full PPAP documentation support and IMDS/CAMDS compliance. |
Pinout & Package
SI86SL42HC-IS1R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance ≥8.3 mm, supporting 6000 VRMS working voltage. Pinout matches Si86SL42 family: 4 isolated I/O pairs (A1–A4/B1–B4), dual supply rails (VDD1/GND1 and VDD2/GND2), SMb (sleep mode control), and EN1/EN2 (output enable).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power domain | Supplies and grounds the input-side logic; independent of VDD2/GND2 for true galvanic isolation. |
| VDD2, GND2 | Side B power domain | Supplies and grounds the output-side logic; enables separate 3.3 V/5 V domain interfacing across isolation barrier. |
| A1–A4 | Side A digital inputs/outputs | Configurable as inputs or outputs; Schmitt-trigger + CMOS thresholds ensure >300 mV hysteresis against EMI. |
| B1–B4 | Side B digital inputs/outputs | Isolated mirror of A1–A4; directionality (forward/reverse) fixed per channel per part number (SL42 = 2F+2R). |
| SMb | Sleep mode control | Active-low pin that reduces total device current to 750 µA/side; retains wake-up capability via dedicated always-on RF channel. |
| EN1, EN2 | Output enable (Side A/B) | Tri-states all outputs on respective side; used for bus arbitration and power sequencing in multi-isolator systems. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot-time delays-outputs become valid immediately after VDD exceeds UVLO+ (2.18 V). |
| Selectable fail-safe output | Ordering option sets default output state (high or low) during VDD loss-critical for safe shutdown in BMS and inverter gate control. |
| Low-power optimization | 0.25 mA/channel lower quiescent current vs. Si86S6x-reduces thermal load in densely packed automotive ECUs without degrading timing. |
| High electromagnetic immunity | 100 kV/µs common-mode transient immunity (CMTI) prevents data corruption in noisy motor drive and charging environments. |
| Reinforced safety certification | UL 1577, VDE 60747-17, CSA 62368-1, and CQC GB4943.1 approvals-enables single-component compliance for end-equipment safety certification. |
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: SI86SL42HC-IS1R provides four bidirectional isolated channels for analog front-end SPI readout and fault signaling across 400–800 V domains. Use Value: 6000 VRMS isolation and AEC-Q100 Grade 1 qualification ensure functional safety compliance (ISO 26262 ASIL-B) without external protection components. |
Use Scenario: Transmitting PWM gate signals and receiving desaturation feedback from IGBTs in EV traction inverters. IC Role / Device Role / Timing Role: SI86SL42HC-IS1R delivers 10 ns propagation delay and 100 kV/µs CMTI to preserve switching timing integrity amid high dv/dt noise. Use Value: Eliminates optocoupler aging and latency-enabling higher switching frequencies (>20 kHz) and improved inverter efficiency. |
| Onboard Charger (OBC) | Industrial PLC I/O Module |
|
Use Scenario: Isolating AC-DC controller communication and DC-link voltage sensing in bidirectional OBCs. IC Role / Device Role / Timing Role: SI86SL42HC-IS1R handles isolated SPI for digital power controller telemetry and analog-to-digital converter interface. Use Value: Wide 2.25–5.5 V supply range allows direct connection to both 3.3 V MCU and 5 V sensor domains-reducing BOM count. |
Use Scenario: Providing channelized isolation between field-side sensors/actuators and backplane CPU in modular PLC racks. IC Role / Device Role / Timing Role: SI86SL42HC-IS1R serves as 4-channel digital isolator for discrete I/O expansion, supporting hot-swap and diagnostics. Use Value: Tri-state outputs with EN1/EN2 enable dynamic reconfiguration of I/O mapping without hardware changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8642ED-IS1R | Higher power consumption (≈0.25 mA/channel more), no SMb pin, same pinout and isolation rating. | Preferred where sleep mode is unnecessary and maximum data integrity at 150 Mbps is prioritized over ultra-low quiescent current. | Choose SI8642ED-IS1R for non-battery-powered industrial systems requiring marginally better jitter performance. |
| ADUM4402BRWZ | 4-channel, 100 Mbps, 5000 VRMS, no AEC-Q100, different pinout (SOIC-16 NB), no SMb or selectable fail-safe. | Used in non-automotive industrial automation where 125 °C operation and reinforced certification are not required. | Choose ADUM4402BRWZ only if legacy design reuse or Analog Devices ecosystem integration outweighs automotive qualification needs. |
Compared with SI86SL42HC-IS1R, SI8642ED-IS1R trades lower quiescent current for slightly higher speed margin, while ADUM4402BRWZ lacks automotive qualification and failsafe configurability-making SI86SL42HC-IS1R the sole choice for ISO 26262-compliant BMS and traction inverter designs.
Availability
SI86SL42HC-IS1R is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI86SL42HC-IS1R 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 solutions for wireless, automotive, and industrial markets.
The Si86S6xx/Lxx family-including SI86SL42HC-IS1R-is engineered for high-reliability, high-noise environments in electric vehicles and industrial power systems, with emphasis on safety certification, low power, and seamless integration into isolated digital interfaces.
FAQ
What is the isolation voltage rating of the SI86SL42HC-IS1R?
The SI86SL42HC-IS1R is rated for 6000 VRMS isolation for 1 minute per UL 1577 and certified to IEC 60747-17 for reinforced insulation. This rating applies to the WB SOIC-16 package and is validated for continuous operation in automotive and industrial high-voltage systems up to 800 V DC bus.
Does the SI86SL42HC-IS1R support fail-safe output configuration?
Yes-the SI86SL42HC-IS1R offers ordering options for default high or default low output states during power loss on the input side. This fail-safe behavior is implemented via internal circuitry and requires no external components, making it suitable for safety-critical BMS and inverter gate control applications.
How does the SMb pin function on the SI86SL42HC-IS1R?
The SMb pin on the SI86SL42HC-IS1R is an active-low sleep mode control. When pulled low, it reduces total device current to 750 µA per side while maintaining one always-on RF channel to detect wake-up events. When high or floating, the device operates at full performance with 150 Mbps capability.
Is the SI86SL42HC-IS1R pin-compatible with other Si86S6xx family members?
Yes-the SI86SL42HC-IS1R shares identical WB SOIC-16 pinout and signal mapping with Si86S642, Si86L42, and Si86SL42 variants. The only functional differences are lower quiescent current and inclusion of SMb; no PCB layout change is needed when upgrading from Si86S642 to SI86SL42HC-IS1R.
What safety certifications does the SI86SL42HC-IS1R hold?
The SI86SL42HC-IS1R holds UL 1577 recognition (6000 VRMS), VDE certification to IEC 60747-17 (reinforced), CSA approval to 62368-1 and 60601-1, and CQC GB4943.1. It is also AEC-Q100 Grade 1 qualified, with AIAG-compliant PPAP documentation and IMDS/CAMDS listings available.
SI86SL42HC-IS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- -
- Type:
- -
- Isolated Power:
- -
- Number of Channels:
- -
- Inputs - Side 1/Side 2:
- -
- Channel Type:
- -
- Voltage - Isolation:
- -
- Common Mode Transient Immunity (Min):
- -
- Data Rate:
- -
- Propagation Delay tpLH / tpHL (Max):
- -
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- -
- Voltage - Supply:
- -
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Supplier Device Package:
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SI86SL42HC-IS1R FAQ
1.How can I place an order for SI86SL42HC-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL42HC-IS1R 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 SI86SL42HC-IS1R reliable?
The price and inventory of SI86SL42HC-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL42HC-IS1R is usually 5 days.
3.What payment methods are accepted for SI86SL42HC-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL42HC-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL42HC-IS1R?
SI86SL42HC-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL42HC-IS1R 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 SI86SL42HC-IS1R?
For technical support, including SI86SL42HC-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL42HC-IS1R requirements.
6.How does Aetrix verify that SI86SL42HC-IS1R is sourced from the original manufacturer or authorized distributors?
All SI86SL42HC-IS1R 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 SI86SL42HC-IS1R meets industry standards.
7.What is the process for return or replacement of SI86SL42HC-IS1R?
All SI86SL42HC-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL42HC-IS1R, 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 SI86SL42HC-IS1R part is unused and in its original packaging.
Return procedure for SI86SL42HC-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL42HC-IS1R Tags
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7741FDWR
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