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Skyworks Solutions Inc. SI86SL42EC-IS1R
- Part No.:
- SI86SL42EC-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86SL42EC-IS1R.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:1,574
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Product details
Overview
SI86SL42EC-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 channels, Schmitt-trigger inputs, tri-state outputs with enable, and operates across –40 to 125 °C in WB SOIC-16 package. It serves as a robust signal-level isolator in battery management systems and traction inverters.
For engineers reviewing the SI86SL42EC-IS1R datasheet, SI86SL42EC-IS1R pinout, SI86SL42EC-IS1R application, or SI86SL42EC-IS1R equivalent, key selection criteria include its 6000 VRMS reinforced insulation (IEC 60747-17), fail-safe default-high/low output option, sleep mode control via SMb pin, and compatibility with isolated SPI and bidirectional bus architectures.
Technical Context
The SI86SL42EC-IS1R implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and enabling deterministic timing behavior. Its architecture supports independent undervoltage lockout (UVLO) and reset circuitry per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.
This device belongs to the Si86SLx subfamily optimized for reduced quiescent current-0.25 mA per channel lower than Si86S6x variants-without altering pinout. It integrates sleep mode via active-low SMb pin, which disables all transmitters except one monitoring channel, achieving ≤750 µA per side in sleep state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces including QSPI and isolated UART without protocol translation. |
| Isolation rating | 6000 VRMS (1 min, UL 1577) - enables use in reinforced insulation applications such as onboard chargers and motor drives. |
| Propagation delay | 10 ns typical - ensures tight timing alignment between isolated domains in real-time control loops. |
| Supply voltage | 2.25 to 5.5 V per side - allows direct interfacing with 3.3 V and 5 V logic domains without level shifters. |
| Operating temperature | –40 to 125 °C - meets automotive under-hood and industrial ambient requirements without derating. |
| CMTI | ≥100 kV/µs - rejects fast transient noise common in high-di/dt power converter environments. |
| Fail-safe mode | Selectable default-high or default-low output during unpowered input - prevents undefined states in safety-critical BMS fault handling. |
Pinout & Package
SI86SL42EC-IS1R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance compliant for 6000 VRMS working voltage. Pinout follows the Si86SM42 configuration: Side A (pins 1–8) and Side B (pins 9–16) are separated by an internal semiconductor isolation barrier.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply | Provides independent 2.25–5.5 V bias for transmitter-side logic; requires local 0.1 µF + 10 µF bypassing. |
| A1–A4 | Side A digital I/O | Four bidirectional or direction-configurable channels; compatible with CMOS/Schmitt-trigger logic levels. |
| SMb | Sleep mode control | Active-low input that places device into ultra-low-power state (≤750 µA/side); retains isolation barrier monitoring capability. |
| GND2, VDD2 | Side B power supply | Galvanically isolated power domain for receiver-side outputs; supports independent voltage rail sequencing. |
| B1–B4 | Side B digital I/O | Isolated mirror of A1–A4; maintains signal integrity across barrier with <3.5 ns pulse width distortion. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift issues of optocouplers; enables stable 150 Mbps operation over full temperature range. |
| Tri-state outputs with EN | Allows shared-bus topologies (e.g., isolated CAN or RS-485) by enabling/disabling outputs without breaking isolation integrity. |
| Schmitt-trigger + CMOS inputs | Provides ≥0.15 × VDD input hysteresis, rejecting noise spikes up to 36 ns duration without external filtering. |
| Reinforced IEC 60747-17 rating | Validates suitability for medical (60601-1) and industrial (62368-1) safety-critical systems requiring dual protection barriers. |
| Automotive-grade flow | Manufactured using automotive-specific process controls, PPAP documentation support, and IMDS/CAMDS compliance. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADCs and microcontroller communication in high-voltage EV battery packs. IC Role / Device Role / Timing Role: Signal-level isolator for SPI data and control lines between isolated analog front-end and host MCU. Use Value: Enables 6000 VRMS reinforced insulation to meet ISO 6469-3 functional safety requirements while maintaining 10 ns propagation delay for real-time cell balancing decisions. |
Use Scenario: Galvanic separation of gate driver control signals from high-noise IGBT/SiC half-bridge switching nodes. IC Role / Device Role / Timing Role: High-CMTI isolator for PWM and fault feedback paths in motor drive inverters. Use Value: Withstands ≥100 kV/µs transients induced by fast-switching power devices, preventing false triggering and ensuring system reliability. |
| Onboard Charger (OBC) | Industrial PLC I/O Module |
|
Use Scenario: Isolating AC/DC and DC/DC controller communication in bi-directional EV charging systems. IC Role / Device Role / Timing Role: Dual-supply digital isolator for isolated UART and GPIO between primary and secondary controllers. Use Value: Supports AEC-Q100 Grade 0 qualification and –40 to 125 °C operation required for under-hood OBC placement. |
Use Scenario: Providing channel-to-channel and field-to-logic isolation in modular programmable logic controller backplanes. IC Role / Device Role / Timing Role: Multi-channel isolator for digital input/output conditioning and status reporting. Use Value: WB SOIC-16 footprint delivers 6000 VRMS isolation in standard PCB layout without custom spacing or slotting. |
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 quiescent current (≈0.25 mA/channel more), no SMb sleep pin, same pinout and 6000 VRMS rating. | Lacks sleep mode; suitable where continuous operation is required and power budget allows. | Choose when lowest possible design risk is prioritized over ultra-low-power sleep capability. |
| ADUM2402BRWZ | 4-channel, 25 Mbps max data rate, 5000 VRMS isolation, SOIC-16, no AEC-Q100 qualification. | Not qualified for automotive; limited to industrial/medical applications below 5 kVRMS requirement. | Consider only for cost-sensitive non-automotive designs where 150 Mbps and 6 kVRMS are not mandatory. |
Compared with SI86SL42EC-IS1R, SI8642ED-IS1R offers identical packaging and isolation but higher static power consumption, while ADUM2402BRWZ trades speed, isolation rating, and automotive qualification for broader distributor availability and legacy design familiarity.
Availability
SI86SL42EC-IS1R 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 SI86SL42EC-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 semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies for high-reliability markets.
The Si86SLx series was designed specifically for automotive and industrial applications demanding low-power, high-CMTI digital isolation with AEC-Q100 qualification and reinforced safety certification.
FAQ
What is the isolation voltage rating of the SI86SL42EC-IS1R?
The SI86SL42EC-IS1R is rated for 6000 VRMS isolation per UL 1577 for 1 minute, with reinforced insulation certified to IEC 60747-17. This rating applies to the WB SOIC-16 package and supports applications requiring high working voltage, such as EV battery packs and industrial motor drives. The device maintains this rating across its full operating temperature range of –40 to 125 °C.
Does the SI86SL42EC-IS1R support fail-safe output configuration?
Yes, the SI86SL42EC-IS1R offers a selectable fail-safe mode via ordering option: 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 ensures predictable logic states during power sequencing faults in safety-critical systems like BMS.
How does the SMb pin function on the SI86SL42EC-IS1R?
The SMb pin on the SI86SL42EC-IS1R is an active-low sleep mode control input. When pulled low, it disables all transmitter circuits except one dedicated monitoring channel, reducing total supply current to ≤750 µA per side. When released (high or open), the device resumes full operation. This feature enables dynamic power management in intermittently active systems such as vehicle wake-up communication links.
What is the maximum data rate supported by the SI86SL42EC-IS1R?
The SI86SL42EC-IS1R supports data rates from DC up to 150 Mbps, verified across the full –40 to 125 °C temperature range and 2.25–5.5 V supply range. This enables use in high-speed isolated interfaces including QSPI, isolated USB signaling, and real-time control bus extensions without protocol conversion or bandwidth throttling.
Is the SI86SL42EC-IS1R qualified for automotive applications?
Yes, the SI86SL42EC-IS1R is AEC-Q100 qualified (Grade 0, –40 to 125 °C), manufactured using automotive-specific process flows, and supported with AIAG-compliant PPAP documentation, IMDS, and CAMDS listings. It is explicitly intended for automotive applications including onboard chargers, battery management systems, and traction inverters.
SI86SL42EC-IS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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:
- 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-IS1R FAQ
1.How can I place an order for SI86SL42EC-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL42EC-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 SI86SL42EC-IS1R reliable?
The price and inventory of SI86SL42EC-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL42EC-IS1R is usually 5 days.
3.What payment methods are accepted for SI86SL42EC-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL42EC-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL42EC-IS1R?
SI86SL42EC-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL42EC-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 SI86SL42EC-IS1R?
For technical support, including SI86SL42EC-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL42EC-IS1R requirements.
6.How does Aetrix verify that SI86SL42EC-IS1R is sourced from the original manufacturer or authorized distributors?
All SI86SL42EC-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 SI86SL42EC-IS1R meets industry standards.
7.What is the process for return or replacement of SI86SL42EC-IS1R?
All SI86SL42EC-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL42EC-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 SI86SL42EC-IS1R part is unused and in its original packaging.
Return procedure for SI86SL42EC-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL42EC-IS1R 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
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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