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Skyworks Solutions Inc. SI86SL42EC-IS1
- Part No.:
- SI86SL42EC-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86SL42EC-IS1.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:1,200
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Product details
Overview
SI86SL42EC-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 from 2.25–5.5 V supplies on both sides, and supports fail-safe default-high or default-low output states during power loss. It is used in battery management systems and traction inverters where high noise immunity and safety-certified galvanic isolation are required.
For engineers reviewing the SI86SL42EC-IS1 datasheet, SI86SL42EC-IS1 pinout, SI86SL42EC-IS1 application, or SI86SL42EC-IS1 equivalent, this page delivers verified specifications, validated pin functions, automotive-grade safety compliance (UL, VDE, CSA, CQC), and real-world use context for isolated SPI, motor control feedback, and high-voltage domain separation in EV power electronics.
Technical Context
The SI86SL42EC-IS1 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 integrates Schmitt-trigger inputs with CMOS thresholds and supports tri-state outputs via enable pins on both sides.
This variant belongs to the Si86SLx subfamily optimized for low quiescent current (0.25 mA/channel less than Si86S6x), with identical pinout to standard 4-channel isolators but relaxed timing specs favoring power efficiency over maximum speed. It uses the NB SOIC-16 package with 8.3 mm creepage/clearance and reinforced insulation per IEC 60747-17.
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 protocol translation. |
| Isolation rating | 6000 VRMS for 1 minute - meets reinforced insulation requirements for onboard chargers and battery electric vehicle high-voltage domains. |
| Supply voltage | 2.25–5.5 V per side - enables interoperability with 3.3 V and 5 V logic domains on isolated sides without level shifters. |
| Propagation delay | 10 ns typical - ensures tight timing alignment in closed-loop motor control and fast ADC/DAC sampling isolation. |
| Pulse width distortion | 3.5 ns typical - preserves duty cycle integrity for PWM signals and clock forwarding across isolation barrier. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive applications including traction inverters and BMS sensor interfaces. |
| Transient immunity | ≥100 kV/µs - suppresses fast common-mode transients induced by IGBT switching in power inverters. |
Pinout & Package
The SI86SL42EC-IS1 is housed in a narrow-body SOIC-16 (NB SOIC-16) package with 1.27 mm pitch, 10.3 mm × 7.5 mm footprint, and 8.3 mm creepage/clearance. Pin numbering follows standard SOIC convention (pin 1 at top-left corner, counterclockwise).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Side A supply | Power input for primary-side logic (e.g., MCU interface); requires 0.1 µF + 10 µF bypass capacitors. |
| GND1 | Side A ground | Reference return for Side A circuits; must be separated from GND2 by isolation barrier layout rules. |
| A1–A4 | Side A I/O | Four bidirectional digital channels - configurable as two forward (A→B) and two reverse (B→A) paths. |
| VDD2 | Side B supply | Independent power for secondary side (e.g., gate driver or sensor domain); decoupling required. |
| GND2 | Side B ground | Isolated reference for Side B; no electrical connection to GND1; defines safety barrier boundary. |
| B1–B4 | Side B I/O | Corresponding isolated outputs/inputs mirroring A1–A4; maintains channel pairing across barrier. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot-time delays or configuration sequences - ready to pass data immediately after VDD stabilization. |
| Selectable fail-safe mode | Ordering option sets default output state (high or low) when input side is unpowered - critical for safe shutdown in BMS fault conditions. |
| Schmitt-trigger + CMOS inputs | Combines noise margin (≥15% VDD hysteresis) with standard logic thresholds - rejects EMI in motor drive environments without external filtering. |
| Tri-state outputs with enable | EN1/EN2 pins allow synchronized high-impedance control of all outputs on respective sides - enables bus sharing and hot-swap capability. |
| AEC-Q100 Grade 1 | Qualified for automotive applications up to +125 °C ambient - includes PPAP documentation support and IMDS/CAMDS compliance. |
Applications
| Automotive Battery Management System | Industrial Motor Control Feedback |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and balancing signals between high-voltage battery stack and low-voltage MCU controller. IC Role / Device Role / Timing Role: Provides reinforced 6000 VRMS galvanic isolation for analog front-end ADC data and digital control lines while maintaining <10 ns propagation delay. Use Value: Enables safe, accurate SOC/SOH estimation in 800 V BEV architectures without compromising sampling synchronization or introducing ground loop errors. |
Use Scenario: Transmitting PWM gate drive signals and current sense feedback across isolation barrier in servo drives and industrial inverters. IC Role / Device Role / Timing Role: Delivers matched forward/reverse channel timing (3.5 ns pulse width distortion) for dual-direction current loop closure. Use Value: Preserves dead-time integrity and prevents shoot-through in IGBT/MOSFET half-bridges operating at >20 kHz switching frequencies. |
| Onboard Charger Communication | Traction Inverter Control Interface |
|
Use Scenario: Isolating CAN FD or UART communication between OBC microcontroller and AC/DC power stage controller. IC Role / Device Role / Timing Role: Supports 150 Mbps data rate and 100 kV/µs CMTI to maintain error-free command/response exchange during high-dV/dt events. Use Value: Ensures reliable handshake and fault reporting during dynamic charging profiles, meeting ISO 15118 and UL 62368-1 system-level requirements. |
Use Scenario: Isolating position encoder signals (e.g., resolver or Hall sensor) and gate driver enable/disable commands in EV traction inverters. IC Role / Device Role / Timing Role: Provides AEC-Q100 qualified, reinforced insulation with fail-safe default-low outputs to force safe shutdown on MCU reset. Use Value: Meets ASIL-B functional safety requirements for torque control path integrity without adding external watchdog circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8642ED-IS1 | Higher power consumption (≈0.25 mA/channel more), same pinout and isolation rating, no sleep mode. | Preferred where timing performance (lower PWD, faster edge rates) outweighs power budget constraints. | Choose SI8642ED-IS1 if system requires tighter timing specs and can accommodate higher quiescent current. |
| ADUM2402BRWZ | Lower isolation rating (5000 VRMS), different pinout (SOIC-16 WB), no AEC-Q100 qualification, 25 Mbps max data rate. | Suitable for non-automotive industrial applications with lower safety certification demands. | Choose ADUM2402BRWZ only for cost-sensitive, non-automotive designs where 5000 VRMS and 25 Mbps suffice. |
Compared with SI86SL42EC-IS1, SI8642ED-IS1 trades power efficiency for enhanced timing precision, while ADUM2402BRWZ offers legacy compatibility at reduced isolation and speed-neither is pin-compatible, and both require PCB layout changes and safety revalidation.
Availability
SI86SL42EC-IS1 is available at Aetrix Electronics and suitable for automotive battery management systems, traction inverters, and onboard chargers requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.
Supply support for SI86SL42EC-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 Si86Sx family-including SI86SL42EC-IS1-is designed specifically for automotive and industrial systems demanding reinforced isolation, high CMTI, and AEC-Q100 compliance in compact SOIC packages.
FAQ
What is the isolation voltage rating of the SI86SL42EC-IS1?
The SI86SL42EC-IS1 provides 6000 VRMS reinforced isolation for 1 minute per UL 1577, certified to IEC 60747-17, CSA 62368-1/60601-1, and CQC GB4943.1. This rating applies to the NB SOIC-16 package and enables use in 800 V battery systems and Class II medical equipment where double/reinforced insulation is mandated.
Does the SI86SL42EC-IS1 support fail-safe output configuration?
Yes, the SI86SL42EC-IS1 offers factory-selectable fail-safe mode: either default-high or default-low output state when the input-side supply (VDD1) is unpowered but the output-side supply (VDD2) remains active. This behavior is defined in Table 4 of the datasheet and is implemented via ordering option suffixes (e.g., "-EC" denotes default-high).
What is the difference between SI86SL42EC-IS1 and SI86S642EC-IS1?
The SI86SL42EC-IS1 is the low-power variant of the Si86S642EC-IS1, consuming ≈0.25 mA less per channel in quiescent operation. Both share identical pinout, isolation rating, and package, but SI86SL42EC-IS1 has relaxed timing specs (e.g., slightly higher propagation delay variation) to achieve its power advantage.
Can SI86SL42EC-IS1 be used for isolated SPI communication?
Yes, SI86SL42EC-IS1 supports isolated SPI through discrete channel mapping: A1/B1 and A2/B2 for MOSI/MISO, A3/B3 for SCLK, and A4/B4 for CS. While not a dedicated SPI isolator like Si86SS41, its 150 Mbps capability and low skew make it suitable for custom SPI isolation with external direction control logic.
Is SI86SL42EC-IS1 qualified for automotive applications?
Yes, SI86SL42EC-IS1 is AEC-Q100 Grade 1 qualified (–40 to +125 °C), manufactured using automotive-specific process flows, and supported with AIAG-compliant PPAP documentation, IMDS, and CAMDS listings-making it suitable for battery management, onboard chargers, and traction inverters in BEV/HEV platforms.
SI86SL42EC-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 2/2
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- 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
SI86SL42EC-IS1 FAQ
1.How can I place an order for SI86SL42EC-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL42EC-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 SI86SL42EC-IS1 reliable?
The price and inventory of SI86SL42EC-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL42EC-IS1 is usually 5 days.
3.What payment methods are accepted for SI86SL42EC-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL42EC-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL42EC-IS1?
SI86SL42EC-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL42EC-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 SI86SL42EC-IS1?
For technical support, including SI86SL42EC-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL42EC-IS1 requirements.
6.How does Aetrix verify that SI86SL42EC-IS1 is sourced from the original manufacturer or authorized distributors?
All SI86SL42EC-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 SI86SL42EC-IS1 meets industry standards.
7.What is the process for return or replacement of SI86SL42EC-IS1?
All SI86SL42EC-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL42EC-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 SI86SL42EC-IS1 part is unused and in its original packaging.
Return procedure for SI86SL42EC-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL42EC-IS1 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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