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Skyworks Solutions Inc. SI86SL42BE-AS2R
- Part No.:
- SI86SL42BE-AS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SL42BE-AS2R.pdf
- Description:
- 6.0 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:3,090
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Product details
Overview
SI86SL42BE-AS2R 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 + CMOS inputs, and selectable fail-safe output (default-low), used in battery management systems and traction inverters.
For engineers reviewing the SI86SL42BE-AS2R datasheet, SI86SL42BE-AS2R pinout, SI86SL42BE-AS2R application, or SI86SL42BE-AS2R equivalent, this page delivers verified specifications, package mapping, functional pin roles, automotive-grade safety certifications (IEC 60747-17, UL 1577), and real-world implementation context for isolated SPI, ADC/DAC, and motor control interfaces.
Technical Context
The SI86SL42BE-AS2R implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity (100 kV/µs CMTI). Its architecture supports independent side-A and side-B undervoltage lockout (UVLO) with 2.10–2.25 V thresholds and reset detection at ~1.7 V.
This variant belongs to the Si86SLx subfamily-optimized for low quiescent current (0.25 mA/channel less than Si86S6x)-and uses a WB SOIC-16 package supporting 6000 VRMS isolation. It includes tri-state outputs with enable pins (EN1/EN2), sleep mode control (SMb), and fail-safe default-low output configuration per ordering option.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed isolated communication without protocol translation |
| Isolation rating | 6000 VRMS (1 min) - enables use in reinforced insulation applications per IEC 60747-17 and UL 1577 |
| Supply voltage | 2.25–5.5 V - allows direct interface with 3.3 V and 5 V logic domains on both sides |
| Propagation delay | 10 ns (typical) - ensures tight timing alignment in feedback loops and real-time control paths |
| Pulse width distortion | 3.5 ns (typical) - preserves signal integrity for clock distribution and PWM edge-sensitive circuits |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive environments and industrial motor drives |
| CMTI | ≥100 kV/µs - prevents false triggering in high-dV/dt noise environments like inverters and SMPS |
Pinout & Package
SI86SL42BE-AS2R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance compliant for 6000 VRMS working voltage. Pinout matches Si86SL42 family: 4 isolated I/O pairs (A1–A4/B1–B4), dual enable (EN1/EN2), supply (VDD1/VDD2), grounds (GND1/GND2), and sleep mode control (SMb).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 | Side A / Side B power supply | Independent 2.25–5.5 V supplies enable galvanic separation of logic domains |
| GND1, GND2 | Side A / Side B ground reference | Physically isolated return paths prevent ground-loop coupling and noise injection |
| A1–A4 | Side A digital I/O inputs/outputs | Forward/reverse channel assignment defined by internal routing; A1/A2 = forward, A3/A4 = reverse |
| B1–B4 | Side B digital I/O inputs/outputs | Corresponding isolated outputs/inputs mirroring A-side signals across barrier |
| EN1, EN2 | Active-high output enable | Tri-states all outputs on respective side-enables shared bus arbitration and power sequencing |
| SMb | Active-low sleep mode control | Puts device into 750 µA/side ultra-low-power state while retaining wake-on-signal capability |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates startup initialization delay and avoids LED aging or capacitor drift issues inherent in optocouplers |
| Selectably default-low fail-safe output | Ensures known safe state during power loss in BMS and inverter gate drivers without external pull resistors |
| Tri-state outputs with EN1/EN2 | Enables multi-drop isolated buses and clean hot-plug behavior in modular power systems |
| Schmitt-trigger + CMOS input thresholds | Provides >0.15×VDD hysteresis for reliable operation in noisy industrial and automotive EMI environments |
| Automotive-grade AEC-Q100 qualification | Validated across full –40 to 125 °C range with zero defects in HTOL, TC, and ESD testing per automotive reliability standards |
Applications
| Battery Management Systems (BMS) | Traction Inverters |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADCs and pack-level MCU communications in EV battery packs. IC Role / Device Role / Timing Role: Provides 4-channel bidirectional isolation between analog front-end and microcontroller, with precise 10 ns propagation delay preserving sampling synchronization. Use Value: Enables reinforced 6000 VRMS isolation required for ASIL-D functional safety compliance while maintaining <3.5 ns pulse width distortion for accurate SOC estimation. |
Use Scenario: Isolating gate driver control signals and fault feedback in 3-phase IGBT/SiC inverter stages. IC Role / Device Role / Timing Role: Delivers high-CMTI (>100 kV/µs) isolation for PWM signals and DESAT feedback, with fail-safe default-low ensuring gate turn-off during supply brownout. Use Value: Prevents shoot-through failures during transient overvoltage events and supports fast 150 Mbps update rates for predictive torque control algorithms. |
| Onboard Chargers (OBC) | Industrial Motor Drives |
|
Use Scenario: Isolating AC-to-DC PFC controller and DC-DC LLC stage communications in bidirectional OBCs. IC Role / Device Role / Timing Role: Acts as 4-channel SPI isolator (MOSI/MISO/CLK/CS) between primary-side MCU and secondary-side digital power controller. Use Value: Supports 150 Mbps data rate for real-time telemetry and firmware updates while meeting IEC 62368-1 reinforced insulation requirements. |
Use Scenario: Isolating encoder feedback and PWM command signals in servo drives operating in factory automation environments. IC Role / Device Role / Timing Role: Provides dual-direction isolation for position loop closure and current sensing ADC interfaces with low 10 ns latency. Use Value: Maintains closed-loop bandwidth >20 kHz despite galvanic separation, enabling sub-millisecond response in motion control systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8642ED-IS | Same 4-channel, 6000 VRMS, but higher power (Si86S6x family); no SMb pin; default-high fail-safe option only | Preferred for non-automotive industrial systems where sleep mode is unnecessary and higher drive strength is needed | Choose SI8642ED-IS when system-level power budget allows >2 mA/channel and fail-safe high is acceptable |
| ADUM2402BRWZ | 4-channel, 5000 VRMS, 1 Mbps max data rate; no AEC-Q100; different pinout (SOIC-16 NB); no SMb or selectable fail-safe | Suitable for legacy industrial designs requiring basic isolation without automotive qualification or high-speed timing | Choose ADUM2402BRWZ only if 150 Mbps is not required and 5000 VRMS meets end-equipment safety certification |
Compared with SI8642ED-IS and ADUM2402BRWZ, SI86SL42BE-AS2R uniquely combines AEC-Q100 qualification, 150 Mbps speed, 6000 VRMS reinforced isolation, and integrated sleep mode-making it the only option qualified for next-generation EV traction and charging systems requiring both performance and automotive reliability.
Availability
SI86SL42BE-AS2R 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 SI86SL42BE-AS2R 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.
The Si86S6xx/Lxx family-including SI86SL42BE-AS2R-is engineered for high-reliability automotive and industrial isolation, delivering RF-based digital isolation with reinforced safety certification and low-power operation.
FAQ
What is the isolation rating and safety certification status of SI86SL42BE-AS2R?
SI86SL42BE-AS2R provides 6000 VRMS reinforced isolation per UL 1577 (1 minute) and is certified to IEC 60747-17. It also meets CSA 62368-1 and 60601-1, and CQC GB4943.1. These certifications are fully documented for automotive PPAP submission and are valid for the exact SI86SL42BE-AS2R part number as shipped.
Does SI86SL42BE-AS2R support fail-safe operation, and how is it configured?
Yes, SI86SL42BE-AS2R is ordered with default-low fail-safe output. When VDD1 or VDD2 is unpowered, outputs remain logic low-critical for gate driver safety in inverters. This behavior is hard-coded per ordering option and requires no external circuitry or configuration registers in SI86SL42BE-AS2R.
What is the function of the SMb pin on SI86SL42BE-AS2R, and what current does it draw in sleep mode?
The SMb pin on SI86SL42BE-AS2R is an active-low sleep mode control. When pulled low, it reduces total device current to 750 µA per side while retaining wake-on-signal capability. The pin is internally pulled up, so leaving it open enables normal operation-no external resistor is required for SI86SL42BE-AS2R.
Can SI86SL42BE-AS2R be used for isolated SPI communication, and which pins map to MOSI/MISO/CLK/CS?
SI86SL42BE-AS2R is not an SPI-dedicated isolator like Si86SSx parts-it is a general-purpose 4-channel isolator. For SPI, A1/B1, A2/B2, A3/B3, and A4/B4 can be assigned to MOSI, MISO, CLK, and CS respectively, but protocol-level framing must be handled externally. SI86SL42BE-AS2R provides physical layer isolation only.
What package type and footprint does SI86SL42BE-AS2R use, and is it compatible with standard SOIC-16 reflow profiles?
SI86SL42BE-AS2R uses a wide-body SOIC-16 (WB SOIC-16) package with 10.3 mm body width and 1.27 mm pitch. It is compatible with standard J-STD-020D reflow profiles, including peak temperatures up to 260 °C for 10 seconds. The package meets IPC-7351B naming convention SOIC16_WB.
SI86SL42BE-AS2R 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:
- SPI
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 2/2
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 6000Vrms
- Common Mode Transient Immunity (Min):
- 150kV/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:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI86SL42BE-AS2R FAQ
1.How can I place an order for SI86SL42BE-AS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL42BE-AS2R 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 SI86SL42BE-AS2R reliable?
The price and inventory of SI86SL42BE-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL42BE-AS2R is usually 5 days.
3.What payment methods are accepted for SI86SL42BE-AS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL42BE-AS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL42BE-AS2R?
SI86SL42BE-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL42BE-AS2R 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 SI86SL42BE-AS2R?
For technical support, including SI86SL42BE-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL42BE-AS2R requirements.
6.How does Aetrix verify that SI86SL42BE-AS2R is sourced from the original manufacturer or authorized distributors?
All SI86SL42BE-AS2R 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 SI86SL42BE-AS2R meets industry standards.
7.What is the process for return or replacement of SI86SL42BE-AS2R?
All SI86SL42BE-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL42BE-AS2R, 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 SI86SL42BE-AS2R part is unused and in its original packaging.
Return procedure for SI86SL42BE-AS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL42BE-AS2R Tags
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ISO1212DBQR
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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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