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Skyworks Solutions Inc. SI86SL40EE-AS2R
- Part No.:
- SI86SL40EE-AS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SL40EE-AS2R.pdf
- Description:
- 6.0 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:2,460
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Product details
Overview
SI86SL40EE-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 Schmitt-trigger inputs, tri-state outputs with enable, selectable fail-safe mode (default high/low), and operates across –40 to 125 °C with 2.25–5.5 V supply on both sides. It is used in battery management systems and onboard chargers where high noise immunity and safety-certified signal isolation are required.
For engineers reviewing the SI86SL40EE-AS2R datasheet, SI86SL40EE-AS2R pinout, SI86SL40EE-AS2R application, or SI86SL40EE-AS2R equivalent, key selection criteria include its 6000 VRMS reinforced insulation per UL 1577 and VDE 60747-17, 10 ns typical propagation delay, 3.5 ns pulse width distortion, 100 kV/µs CMTI, and sleep-mode capability via SMb pin for power-sensitive automotive subsystems.
Technical Context
The SI86SL40EE-AS2R implements RF-based on/off keying across a semiconductor isolation barrier-eliminating start-up initialization and enabling robust noise immunity without optical degradation. Its architecture supports bidirectional channel operation with independent side-A and side-B undervoltage lockout (UVLO) and reset thresholds (RSTB± ~1.7 V), ensuring deterministic behavior during supply transients.
It integrates a dedicated SMb (sleep mode active-low) input that places both sides into ultra-low-power state (750 µA per side) while retaining one always-on channel to monitor SMb status. The device uses CMOS thresholds and Schmitt-trigger inputs for enhanced EMI resilience, and supports fail-safe output states configurable at order time (default high or low when unpowered).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces including isolated SPI and QSPI bus extensions. |
| Isolation rating | 6000 VRMS - meets reinforced insulation requirements per UL 1577 and VDE 60747-17 for automotive and industrial safety-critical applications. |
| Propagation delay | 10 ns typical - enables precise timing alignment in fast control loops such as motor gate drivers and ADC sampling clocks. |
| Pulse width distortion | 3.5 ns typical - ensures minimal duty-cycle error in PWM-isolated feedback paths and clock distribution. |
| CMTI | ≥100 kV/µs - maintains signal integrity in high-dV/dt environments like traction inverters and isolated switch-mode supplies. |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains without level-shifting circuitry. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive use and industrial ambient conditions without derating. |
| AEC-Q100 grade | Grade 1 - validated for automotive electronics per stress test requirements including HTOL, TC, and ESD. |
Pinout & Package
SI86SL40EE-AS2R is housed in a WB SOIC-16 package (wide-body, 10.3 mm creepage/clearance), supporting 6000 VRMS isolation. Pin functions are defined per Figure 2 (Si86S64x/L4x) in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power domain | Supplies and grounds the input-side logic; requires 0.1 µF + 10 µF bypass capacitors placed near pins. |
| VDD2, GND2 | Side B power domain | Supplies and grounds the output-side logic; independent biasing enables galvanic separation of ground domains. |
| A1–A4 | Side A digital I/O | Four isolated input/output channels on main side; compatible with CMOS/Schmitt-trigger logic levels. |
| B1–B4 | Side B digital I/O | Four isolated output/input channels on secondary side; electrically decoupled from Side A. |
| SMb | Sleep mode control | Active-low input that disables all transmitters/receivers except one monitoring channel; reduces quiescent current to 750 µA per side. |
| EN1, EN2 | Output enable | Active-high pins that place respective side's outputs into high-impedance state-enabling shared-bus architectures. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot-time delays or configuration sequences-output follows input immediately after UVLO exit. |
| Selectable fail-safe mode | Ordering option sets default output state (high or low) during side-A power loss-critical for safe shutdown in BMS fault handling. |
| Tri-state outputs with enable | EN1/EN2 allow dynamic bus contention avoidance in multi-master isolated systems without external logic. |
| Schmitt-trigger + CMOS inputs | Combined hysteresis (0.15 × VDD) and rail-to-rail thresholds reject >36 ns noise pulses-reducing false triggering in noisy motor drive environments. |
| Reinforced safety certification | UL 1577, VDE 60747-17, CSA 62368-1, and CQC GB4943.1 approvals pre-qualify design for end-equipment certification. |
| Automotive-grade manufacturing | Fabricated using automotive-specific process flows with AIAG-compliant PPAP documentation and IMDS/CAMDS material declarations. |
Applications
| Battery Management System (BMS) | Onboard Charger (OBC) |
|---|---|
Use Scenario: Isolating cell voltage monitoring and pack-level communication between high-voltage battery stack and low-voltage MCU. IC Role / Device Role / Timing Role: SI86SL40EE-AS2R provides four independent, safety-certified signal paths for voltage sense lines and fault reporting with <10 ns timing skew. Use Value: Enables accurate SOC estimation and thermal runaway detection while meeting ASIL-B functional safety requirements via reinforced insulation. | Use Scenario: Isolating digital control signals between AC/DC front-end controller and DC/DC converter stage in EV charging systems. IC Role / Device Role / Timing Role: SI86SL40EE-AS2R carries PWM, enable, and status signals across 6000 VRMS barrier with 150 Mbps bandwidth for real-time regulation. Use Value: Supports high-frequency switching (>100 kHz) without timing jitter, reducing EMI filter size and improving OBC power density. |
| Traction Inverter Control | Industrial Motor Drive |
Use Scenario: Transmitting gate drive signals and current-sense feedback from isolated current sensors to SiC/GaN half-bridge drivers. IC Role / Device Role / Timing Role: SI86SL40EE-AS2R delivers <3.5 ns pulse width distortion and ≥100 kV/µs CMTI to preserve dead-time integrity in high-dV/dt inverters. Use Value: Prevents shoot-through failures and extends power device lifetime by maintaining precise edge alignment under transient noise. | Use Scenario: Isolating encoder quadrature signals and digital I/O between PLC controller and servo amplifier in factory automation. IC Role / Device Role / Timing Role: SI86SL40EE-AS2R handles 4× differential encoder channels and discrete I/O with fail-safe defaults during brownout events. Use Value: Ensures machine motion continuity and safe stop response even during partial power loss in harsh industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2400ARWZ | 4-channel, 25 Mbps, 2500 VRMS, 5 V only, no sleep mode, non-automotive grade | Limited to industrial/commercial temp range (–40 to 105 °C); lacks AEC-Q100 and reinforced 6000 VRMS rating | Choose ADUM2400ARWZ only for cost-sensitive non-automotive designs where 25 Mbps and 2500 VRMS suffice. |
| ISO7741FDWR | 4-channel, 100 Mbps, 5000 VRMS, 1.8–5.5 V, no SMb pin, TI's reinforced isolation | Lower isolation rating (5000 VRMS vs. 6000 VRMS); no dedicated sleep control; not AEC-Q100 qualified | Choose ISO7741FDWR for TI-ecosystem designs needing wider VDD range but accepting reduced isolation margin and no automotive qualification. |
Compared with ADUM2400ARWZ and ISO7741FDWR, SI86SL40EE-AS2R delivers higher isolation (6000 VRMS), automotive qualification (AEC-Q100 Grade 1), integrated sleep mode (SMb), and superior CMTI (≥100 kV/µs), making it uniquely suited for safety-critical EV powertrain subsystems requiring long-term reliability under extreme thermal and electrical stress.
Availability
SI86SL40EE-AS2R is available at Aetrix Electronics and suitable for battery management systems, onboard chargers, and traction inverters requiring stable component supply across automotive production lifecycles.
Supply support for SI86SL40EE-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 for wireless, automotive, and industrial markets.
The Si86Sxx family-including SI86SL40EE-AS2R-is engineered for high-reliability signal isolation in safety-critical automotive and industrial systems, emphasizing reinforced insulation, low-power operation, and AEC-Q100 compliance.
FAQ
What is the isolation voltage rating of the SI86SL40EE-AS2R?
The SI86SL40EE-AS2R has a reinforced isolation rating of 6000 VRMS per UL 1577 and VDE 60747-17, verified for 1 minute withstand. This rating applies specifically to the WB SOIC-16 package variant and enables use in high-voltage automotive subsystems such as battery packs and inverters where creepage and clearance must exceed 8.3 mm.
Does the SI86SL40EE-AS2R support fail-safe output configuration?
Yes, the SI86SL40EE-AS2R offers a selectable fail-safe mode at order time: 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 implemented in silicon and documented in Table 4 of the datasheet for predictable fault response in BMS and OBC applications.
How does the SMb pin function on the SI86SL40EE-AS2R?
The SMb pin on the SI86SL40EE-AS2R is an active-low sleep mode control. When pulled low, it disables all transmitter and receiver circuits except one monitoring channel, reducing total quiescent current to 750 µA per side. The device exits sleep mode within 1 µs when SMb transitions high or floats, enabling rapid wake-up in responsive automotive subsystems.
What are the supply voltage requirements for SI86SL40EE-AS2R operation?
The SI86SL40EE-AS2R requires 2.25 V to 5.5 V on both VDD1 and VDD2 supplies, independently. Each side must be bypassed with 0.1 µF ceramic and 10 µF bulk capacitors placed adjacent to the pins. Operation outside this range triggers undervoltage lockout (UVLO), holding outputs in a known state until VDD exceeds 2.18 V (typical UVLO+ threshold).
Is SI86SL40EE-AS2R qualified for automotive applications?
Yes, SI86SL40EE-AS2R 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 material declarations-making it suitable for safety-critical automotive powertrain and charging systems.
SI86SL40EE-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:
- 4/0
- 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
SI86SL40EE-AS2R FAQ
1.How can I place an order for SI86SL40EE-AS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL40EE-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 SI86SL40EE-AS2R reliable?
The price and inventory of SI86SL40EE-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL40EE-AS2R is usually 5 days.
3.What payment methods are accepted for SI86SL40EE-AS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL40EE-AS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL40EE-AS2R?
SI86SL40EE-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL40EE-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 SI86SL40EE-AS2R?
For technical support, including SI86SL40EE-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL40EE-AS2R requirements.
6.How does Aetrix verify that SI86SL40EE-AS2R is sourced from the original manufacturer or authorized distributors?
All SI86SL40EE-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 SI86SL40EE-AS2R meets industry standards.
7.What is the process for return or replacement of SI86SL40EE-AS2R?
All SI86SL40EE-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL40EE-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 SI86SL40EE-AS2R part is unused and in its original packaging.
Return procedure for SI86SL40EE-AS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL40EE-AS2R 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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