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Skyworks Solutions Inc. SI86SL41EE-AS2R
- Part No.:
- SI86SL41EE-AS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SL41EE-AS2R.pdf
- Description:
- 6.0 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:2,224
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Product details
Overview
SI86SL41EE-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 output (default-low), and operates across –40 to 125 °C in a WB SOIC-16 package. It is used in battery management systems and isolated ADC interfaces where high noise immunity and safety-certified signal integrity are required.
For engineers reviewing the SI86SL41EE-AS2R datasheet, SI86SL41EE-AS2R pinout, SI86SL41EE-AS2R application, or SI86SL41EE-AS2R equivalent, key selection criteria include its 6000 VRMS reinforced insulation per UL 1577 and VDE 60747-17, fail-safe default-low configuration, sleep-mode support via SMb pin, and compatibility with isolated SPI peripheral interfaces in automotive traction inverters and onboard chargers.
Technical Context
The SI86SL41EE-AS2R implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity up to 100 kV/µs CMTI. Its architecture supports independent undervoltage lockout (UVLO) and reset monitoring on both sides (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.
It integrates four unidirectional channels (A1–A4 → B1–B4), with side-A supply (VDD1/GND1), side-B supply (VDD2/GND2), and dedicated SMb (sleep mode active-low) and EN1/EN2 (output enable) pins. The device uses CMOS thresholds with 0.15×VDD input hysteresis and delivers typical propagation delay of 10 ns and pulse width distortion of 3.5 ns at 5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including isolated SPI clock and data lines without timing bottlenecks. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements per UL 1577 and VDE 60747-17 for automotive and medical safety-critical systems. |
| Propagation delay | 10 ns (typical) - enables tight timing budgets in motor control gate drivers and real-time feedback loops. |
| Supply voltage | 2.25–5.5 V - allows direct interface with 3.3 V and 5 V logic domains without level-shifting circuitry. |
| Fail-safe mode | Default-low output - ensures safe state during power loss on side-A, critical for fault-tolerant BMS monitoring paths. |
| Transient immunity | ≥100 kV/µs - suppresses fast common-mode transients in high-dv/dt environments like traction inverters and SMPS. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications and industrial motor drives without derating. |
Pinout & Package
SI86SL41EE-AS2R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance optimized for 6000 VRMS working voltage. Pin assignments follow the Si86SL4x family layout with side-A and side-B I/O separated by an internal isolation barrier.
| 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. |
| A1–A4 | Side-A digital inputs | Unidirectional input channels mapped to B1–B4; accept Schmitt-triggered signals with 0.15×VDD hysteresis. |
| SMb | Sleep mode control | Active-low pin that disables all transmitters except one monitoring channel; reduces quiescent current to 750 µA/side. |
| EN1 | Side-A output enable | Tri-states all B1–B4 outputs when low; used for bus arbitration or power sequencing coordination. |
| VDD2, GND2 | Side-B power domain | Isolated supply for output-side logic; galvanically decoupled from VDD1/GND1. |
| B1–B4 | Side-B digital outputs | CMOS-compatible outputs with 50 Ω nominal impedance; require controlled-impedance PCB routing above 50 Mbps. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift issues of optocouplers; provides stable timing over full temperature range. |
| No start-up initialization | Outputs become valid within 0.3 ms after VDD exceeds UVLO+ (2.18 V); no firmware or configuration overhead required. |
| Reinforced safety certification | UL 1577, VDE 60747-17, CSA 62368-1, and CQC GB4943.1 approvals - enables single-component compliance for end-equipment safety certification. |
| Low-power optimization | 0.25 mA/channel lower quiescent current vs. Si86S6x series; ideal for always-on BMS monitoring circuits with strict power budgets. |
| Selectable fail-safe output | Factory-configured default-low behavior ensures downstream logic remains deasserted during side-A power failure - prevents unintended actuation. |
Applications
| Automotive Battery Management System | Isolated ADC Interface |
|---|---|
|
Use Scenario: Monitoring cell voltages and temperatures in high-voltage EV battery packs using isolated sigma-delta ADCs. IC Role / Device Role / Timing Role: Transfers ADC conversion results across 400–800 V isolation barrier while maintaining <10 ns timing alignment between sampling and readout. Use Value: Enables accurate SOC/SOH estimation with 6000 VRMS reinforced insulation and 100 kV/µs CMTI to reject switching noise from adjacent inverters. |
Use Scenario: Isolating serial data streams from precision isolated ADCs (e.g., AD7403) in industrial motor drives. IC Role / Device Role / Timing Role: Provides galvanic separation for SCLK, SDATA, and CS# signals between MCU and isolated ADC, preserving SPI timing integrity. Use Value: Delivers 150 Mbps throughput and 3.5 ns pulse width distortion to support 20-bit ADCs operating at >1 MSPS without bit errors. |
| Onboard Charger Control | Traction Inverter Gate Driver Interface |
|
Use Scenario: Communicating PWM commands and status signals between low-voltage MCU and high-voltage AC/DC converter stages. IC Role / Device Role / Timing Role: Carries isolated enable, fault, and synchronization signals with fail-safe default-low to prevent accidental charger activation during brownout. Use Value: Guarantees safe shutdown via UVLO monitoring on both sides and RSTB-level reset detection (<1.7 V) for deterministic recovery. |
Use Scenario: Delivering isolated gate drive signals to SiC MOSFET half-bridges in electric vehicle traction inverters. IC Role / Device Role / Timing Role: Transfers isolated PWM edges with <10 ns propagation delay matching to minimize shoot-through risk in high-frequency switching. Use Value: Supports 100 kHz+ switching with precise edge alignment and 125 °C operation-critical for thermal-limited inverter designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-AS2R | Standard-power variant (Si86S6x family); higher quiescent current (~0.25 mA/channel more), same pinout and specs otherwise. | Lacks low-power optimization; less suitable for always-on BMS monitoring but identical for burst-mode SPI isolation. | Choose when system power budget allows higher idle current and legacy design reuse is prioritized over efficiency. |
| ADUM4401BRWZ | 4-channel, 100 Mbps, 5000 VRMS; uses iCoupler® capacitive isolation; no SMb pin; default-high fail-safe only. | Lower isolation rating and no sleep mode; not AEC-Q100 qualified; requires external pull-ups for enable logic. | Acceptable for industrial non-automotive use where 5000 VRMS suffices and sleep mode is unnecessary. |
Compared with SI86SL41EE-AS2R, SI8641ED-AS2R trades power efficiency for broader legacy compatibility, while ADUM4401BRWZ offers mature capacitive isolation but lacks automotive qualification, reinforced 6000 VRMS, and configurable fail-safe behavior-making SI86SL41EE-AS2R the only option meeting full ISO 26262 ASIL-B ready requirements out-of-box.
Availability
SI86SL41EE-AS2R is available at Aetrix Electronics and suitable for automotive battery management systems, isolated ADC interfaces, onboard charger control, and traction inverter gate driver interfaces requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for SI86SL41EE-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 for high-reliability markets.
The Si86S6xx/Lxx/Mxx/Qxx/Sxx family was designed specifically for automotive and industrial isolation needs-emphasizing reinforced safety certification, extended temperature operation, and low-power performance without compromising speed or noise immunity.
FAQ
What is the isolation voltage rating of SI86SL41EE-AS2R and which safety standards does it meet?
SI86SL41EE-AS2R provides 6000 VRMS reinforced isolation for 1 minute per UL 1577 and complies with VDE 60747-17, CSA 62368-1, and CQC GB4943.1. These certifications validate its suitability for automotive battery management and medical equipment where double insulation is mandated. The wide-body SOIC-16 package enables this rating through enhanced creepage and clearance distances.
Does SI86SL41EE-AS2R support fail-safe operation, and how is it configured?
Yes, SI86SL41EE-AS2R is factory-configured for default-low fail-safe output. When side-A supply (VDD1) falls below UVLO– (1.98 V), outputs B1–B4 are actively driven low-ensuring safe state in BMS monitoring paths. This behavior is fixed per ordering code "EE" and cannot be changed in-circuit; no external components are needed to activate it.
How does the SMb pin function in SI86SL41EE-AS2R, and what power savings does it enable?
The SMb pin in SI86SL41EE-AS2R is an active-low sleep mode control. When pulled low, it shuts down all transmitter circuits except one dedicated channel monitoring SMb, reducing quiescent current to 750 µA per side. This enables ultra-low-power standby in always-on automotive modules without sacrificing restart responsiveness-recovery occurs within 1 µs when SMb is released.
What are the key timing specifications of SI86SL41EE-AS2R at 5 V supply?
At VDD = 5.0 V, SI86SL41EE-AS2R delivers typical propagation delay of 10 ns, pulse width distortion of 3.5 ns, and channel-to-channel skew of <2 ns. These values are measured under loaded conditions (CL = 15 pF) and remain stable across –40 to 125 °C, making it suitable for time-critical applications like isolated gate driving and high-speed sensor interfaces.
Is SI86SL41EE-AS2R compatible with standard SPI interfaces, and how are the pins assigned?
SI86SL41EE-AS2R is not an SPI-dedicated isolator (unlike Si86SS41); it is a general-purpose 4-channel isolator. For SPI isolation, A1–A4 and B1–B4 map directly to MOSI, MISO, SCLK, and CS# signals-but require external direction control logic. It does not integrate SPI protocol logic or chip-select buffering; those functions must be implemented externally or with a dedicated SPI isolator like Si86SS41.
SI86SL41EE-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:
- 3/1
- 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
SI86SL41EE-AS2R FAQ
1.How can I place an order for SI86SL41EE-AS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL41EE-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 SI86SL41EE-AS2R reliable?
The price and inventory of SI86SL41EE-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL41EE-AS2R is usually 5 days.
3.What payment methods are accepted for SI86SL41EE-AS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL41EE-AS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL41EE-AS2R?
SI86SL41EE-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL41EE-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 SI86SL41EE-AS2R?
For technical support, including SI86SL41EE-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL41EE-AS2R requirements.
6.How does Aetrix verify that SI86SL41EE-AS2R is sourced from the original manufacturer or authorized distributors?
All SI86SL41EE-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 SI86SL41EE-AS2R meets industry standards.
7.What is the process for return or replacement of SI86SL41EE-AS2R?
All SI86SL41EE-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL41EE-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 SI86SL41EE-AS2R part is unused and in its original packaging.
Return procedure for SI86SL41EE-AS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL41EE-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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ISO7721DWVR
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ISO7741DWR
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ISO7741FDWR
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