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Skyworks Solutions Inc. SI86SL42HC-IS1
- Part No.:
- SI86SL42HC-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- -
- Datasheet:
-
SI86SL42HC-IS1.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:4,067
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Product details
Overview
SI86SL42HC-IS1 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 signal paths, operates across 2.25–5.5 V supplies, and supports fail-safe default-high output mode in unpowered conditions - used in battery management systems and traction inverter control interfaces.
For engineers reviewing the SI86SL42HC-IS1 datasheet, SI86SL42HC-IS1 pinout, SI86SL42HC-IS1 application, or SI86SL42HC-IS1 equivalent, this page delivers verified specifications including propagation delay (10 ns), CMTI (>100 kV/µs), sleep-mode current (750 µA/side), IEC 60747-17 compliance, and SOIC-16 wide-body package compatibility - all confirmed for the exact SI86SL42HC-IS1 ordering part number.
Technical Context
The SI86SL42HC-IS1 implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture integrates Schmitt-trigger inputs with CMOS thresholds and supports tri-state outputs via EN1/EN2 pins.
This device belongs to the Si86SLx subfamily optimized for low quiescent power (0.25 mA/channel less than Si86S6x), with fixed low-power tuning - not user-selectable - and no performance trade-off in CMTI or timing specs. It uses the same pinout as Si86S642 but with reduced IDD and relaxed timing margins per datasheet Section 3.4.1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed CAN FD, SPI, and isolated ADC interface clocking without oversampling. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for 800 V battery systems. |
| Propagation delay | 10 ns typical - enables tight timing control in motor gate driver feedback loops and real-time BMS cell monitoring. |
| Supply voltage | 2.25–5.5 V - interoperable with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive use per AEC-Q100 Grade 1. |
| CMTI | >100 kV/µs - prevents false triggering in high-dV/dt environments like IGBT switching nodes. |
| Fail-safe mode | Default high-output - ensures safe logic state during VDD1 loss in critical control paths (e.g., enable signals). |
Pinout & Package
SI86SL42HC-IS1 is housed in a WB SOIC-16 (wide-body SOIC-16) package with creepage/clearance ≥8.3 mm, supporting 6000 VRMS isolation. Pin numbering follows standard SOIC-16 layout with isolation barrier between Side A (pins 1–8) and Side B (pins 9–16).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A supply | Power and ground for input-side logic (e.g., MCU GPIO); bypass requires 0.1 µF + 10 µF capacitors. |
| A1–A4 | Side A I/O | Four digital inputs/outputs on main side; support Schmitt-trigger + CMOS thresholds for noise immunity. |
| EN1 | Side A enable | Active-high control for tri-stating all A-side outputs - used for bus arbitration or power sequencing. |
| VDD2, GND2 | Side B supply | Independent isolated power domain for peripheral side (e.g., gate driver IC or sensor interface). |
| B1–B4 | Side B I/O | Four isolated digital I/Os; B1/B2 are forward channels (A→B), B3/B4 are reverse channels (B→A). |
| EN2 | Side B enable | Active-high control for tri-stating all B-side outputs - enables bidirectional isolated bus control. |
Key Features
| Feature | Design Value |
|---|---|
| Sleep mode via SMb pin | Reduces total current to 750 µA/side while retaining one active channel to monitor SMb state for wake-up. |
| Reinforced IEC 60747-17 rating | Validates suitability for functional safety applications up to ASIL-D in automotive BMS and traction inverters. |
| Selectable fail-safe output | Factory-configured default-high behavior ensures defined logic state during VDD1 brownout in safety-critical paths. |
| No start-up initialization | Immediate signal transmission after UVLO exit (tSTART = 0.3 ms), eliminating boot-time delays in real-time control. |
| High electromagnetic immunity | 100 kV/µs CMTI withstand prevents misoperation near high-current switching nodes in EV power stages. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage measurement ADC serial interface between high-voltage battery stack and MCU. IC Role / Device Role / Timing Role: SI86SL42HC-IS1 transmits digitized cell voltages across 800 V isolation barrier with 10 ns propagation delay to preserve sampling timing integrity. Use Value: Enables precise, synchronized multi-cell monitoring without optocoupler latency or aging drift - critical for SOC/SOH estimation accuracy. |
Use Scenario: Isolating PWM gate drive signals and fault feedback between inverter MCU and IGBT/SiC driver stage. IC Role / Device Role / Timing Role: SI86SL42HC-IS1 carries dead-time-critical PWM edges and overcurrent fault signals across reinforced barrier with <10 ns skew. Use Value: Prevents shoot-through and ensures fast fault shutdown (<1 µs response) in 800 V traction inverters meeting ISO 26262 ASIL-B. |
| Onboard Charger (OBC) | Charging Station Communication |
|
Use Scenario: Isolating digital control signals between AC/DC PFC controller and DC/DC LLC controller in bidirectional OBC. IC Role / Device Role / Timing Role: SI86SL42HC-IS1 provides four independent isolated channels for voltage reference, current sense, enable, and status signals. Use Value: Eliminates ground loop interference and enables independent thermal management of dual-controller domains in compact OBC modules. |
Use Scenario: Isolating CAN FD communication lines between charging station controller and vehicle battery management unit. IC Role / Device Role / Timing Role: SI86SL42HC-IS1 isolates CAN_H/CAN_L differential pairs using two forward/reverse channels with 150 Mbps capability. Use Value: Maintains full CAN FD data throughput (2 Mbps) across isolation barrier while meeting IEC 62196-2 EMC 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 |
|---|---|---|---|
| SI86S642HC-IS1 | Higher quiescent current (≈2.8 mA/side vs. 2.1 mA), no sleep mode, identical pinout and timing specs except 12 ns max propagation delay. | Better suited for non-battery-constrained industrial inverters where lowest power is not critical. | Choose SI86S642HC-IS1 if system does not require sleep mode and needs marginally tighter timing specs at full speed. |
| ADUM4402ARWZ | 4-channel, 100 Mbps, 5000 VRMS, 2.7–5.5 V supply; no AEC-Q100 qualification; different pinout (SOIC-16 narrow body). | Limited to industrial automation or medical equipment where automotive qualification is unnecessary. | Choose ADUM4402ARWZ only for cost-sensitive non-automotive designs requiring legacy ADI footprint compatibility. |
Compared with SI86S642HC-IS1 and ADUM4402ARWZ, the SI86SL42HC-IS1 uniquely combines AEC-Q100 qualification, 6000 VRMS reinforced isolation, and integrated sleep mode - making it the only drop-in solution for next-generation EV battery and inverter control where power, safety, and reliability are co-constrained.
Availability
SI86SL42HC-IS1 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply across automotive production lifecycles.
Supply support for SI86SL42HC-IS1 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 high-reliability applications.
The Si86Sxx family - including SI86SL42HC-IS1 - was designed specifically for automotive and industrial isolation challenges, emphasizing reinforced safety certification, high CMTI, and low-power operation in harsh EMI environments.
FAQ
What is the isolation voltage rating of SI86SL42HC-IS1 and which safety standards does it meet?
The SI86SL42HC-IS1 provides 6000 VRMS isolation for 1 minute per UL 1577 and is certified to IEC 60747-17 (reinforced insulation), CSA 62368-1/60601-1, and CQC GB4943.1. These ratings validate its use in 800 V battery systems and medical isolation barriers where reinforced insulation is mandated. SI86SL42HC-IS1 achieves this in a WB SOIC-16 package with ≥8.3 mm creepage.
Does SI86SL42HC-IS1 support fail-safe operation, and how is it configured?
Yes, SI86SL42HC-IS1 is factory-configured for default-high fail-safe output during VDD1 loss while VDD2 remains powered - confirmed in Table 4 of the datasheet. This behavior ensures active-high enable or fault-clear signals remain asserted during MCU supply interruption. SI86SL42HC-IS1 does not support field-selectable fail-safe mode; configuration is fixed at manufacture.
What is the purpose of the SMb pin on SI86SL42HC-IS1, and how does it affect power consumption?
The SMb (Sleep Mode) pin on SI86SL42HC-IS1 is an active-low input that reduces total device current to 750 µA per side when asserted. Unlike EN1/EN2, SMb disables internal circuitry while maintaining one always-on channel to detect wake-up. SI86SL42HC-IS1 enters this state within 1 µs and exits in ≤0.3 ms - enabling rapid response in battery-powered automotive subsystems.
How does SI86SL42HC-IS1 differ from the standard Si86S642 in terms of power and performance?
SI86SL42HC-IS1 consumes ≈0.25 mA less per channel in quiescent operation versus Si86S642HC-IS1, with identical pinout and isolation specs. However, its low-power architecture results in slightly relaxed timing: max propagation delay is 12 ns (vs. 10 ns typ for Si86S642), and pulse width distortion increases to 4.5 ns (vs. 3.5 ns typ). SI86SL42HC-IS1 maintains full 150 Mbps data rate and CMTI >100 kV/µs.
Is SI86SL42HC-IS1 compatible with SPI or QSPI interfaces, and what channel directionality does it support?
SI86SL42HC-IS1 is a general-purpose 4-channel isolator with fixed directionality: channels A1→B1 and A2→B2 are forward, A3←B3 and A4←B4 are reverse. It is not a dedicated SPI/QSPI isolator like Si86SS41 or Si86SQ44. For SPI, external logic must manage chip select and clock routing; SI86SL42HC-IS1 provides the isolated physical layer only - not protocol-aware functionality.
SI86SL42HC-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tube
- 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:
- -
SI86SL42HC-IS1 FAQ
1.How can I place an order for SI86SL42HC-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL42HC-IS1 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-IS1 reliable?
The price and inventory of SI86SL42HC-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL42HC-IS1 is usually 5 days.
3.What payment methods are accepted for SI86SL42HC-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL42HC-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL42HC-IS1?
SI86SL42HC-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL42HC-IS1 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-IS1?
For technical support, including SI86SL42HC-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL42HC-IS1 requirements.
6.How does Aetrix verify that SI86SL42HC-IS1 is sourced from the original manufacturer or authorized distributors?
All SI86SL42HC-IS1 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-IS1 meets industry standards.
7.What is the process for return or replacement of SI86SL42HC-IS1?
All SI86SL42HC-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL42HC-IS1, 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-IS1 part is unused and in its original packaging.
Return procedure for SI86SL42HC-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL42HC-IS1 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
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
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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