My Inquiry
My Account
Skyworks Solutions Inc. SI86SL41BC-AS1R
- Part No.:
- SI86SL41BC-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86SL41BC-AS1R.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:4,172
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI86SL41BC-AS1R 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 CMOS inputs, 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 to isolate SPI communication between MCU and isolated ADCs.
For engineers reviewing the SI86SL41BC-AS1R datasheet, SI86SL41BC-AS1R pinout, SI86SL41BC-AS1R application, or SI86SL41BC-AS1R equivalent, this page delivers verified specifications, functional context, real-world use cases, and validated alternative options - all aligned to the exact ordering part number and its documented electrical, thermal, and safety characteristics.
Technical Context
The SI86SL41BC-AS1R implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and enabling deterministic timing. Its architecture supports bidirectional signal transfer with independent side-A and side-B undervoltage lockout (UVLO) and reset thresholds (VDDUV+ = 2.18 V, RSTB– ≈ 1.7 V).
This device belongs to the Si86SLx subfamily optimized for low quiescent power: it consumes ~0.25 mA per channel less than Si86S6x counterparts at 5 V, with typical propagation delay of 10 ns and pulse width distortion of 3.5 ns - all while maintaining 100 kV/µs CMTI and reinforced IEC 60747-17 insulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, CAN FD interface isolation without protocol translation. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements for 1000 VAC working voltage systems. |
| Supply voltage | 2.25 to 5.5 V - enables direct interfacing with 3.3 V and 5 V logic domains without level shifters. |
| Propagation delay | 10 ns (typ) - ensures tight timing alignment in motor control gate driver feedback loops. |
| Fail-safe mode | Default-low output - guarantees safe shutdown state during VDD1 loss in BMS fault detection paths. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive environments including traction inverter control units. |
| CMTI | ≥100 kV/µs - prevents false triggering in high-dV/dt noise environments like power inverters. |
Pinout & Package
SI86SL41BC-AS1R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance ≥8.3 mm, 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 supply | Supplies isolated controller-side logic; requires 0.1 µF + 10 µF bypass capacitors. |
| A1–A4 | Side A digital inputs/outputs | Four unidirectional channels from main side; compatible with CMOS/Schmitt-trigger logic. |
| VDD2, GND2 | Side B power supply | Supplies isolated peripheral-side logic; galvanically separated from VDD1/GND1. |
| B1–B4 | Side B digital outputs/inputs | Four isolated output channels; default-low fail-safe behavior active when VDD1 is unpowered. |
| NC (pins 7, 15) | No-connect | Not internally bonded; must remain floating per datasheet layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift issues inherent in optocouplers; enables stable 150 Mbps operation over full temperature range. |
| Sleep mode support | SMb pin (not present on SI86SL41BC-AS1R) is absent - this variant uses fixed low-power architecture without external sleep control. |
| Tri-state outputs | EN1/EN2 pins enable/disable all outputs on respective sides - allows shared-bus arbitration in multi-device SPI daisy chains. |
| Reinforced safety certification | UL 1577, VDE 60747-17, CSA 62368-1, CQC GB4943.1 - satisfies system-level compliance for medical and automotive end equipment. |
| High-noise immunity inputs | Schmitt-trigger + CMOS threshold inputs with 0.15×VDD hysteresis - rejects >36 ns glitches in noisy motor drive environments. |
Applications
| Battery Management System (BMS) | Onboard Charger (OBC) |
|---|---|
|
Use Scenario: Isolating SPI communication between MCU and isolated ADCs monitoring cell voltages and temperatures in high-voltage battery packs. IC Role / Device Role / Timing Role: Digital isolator providing galvanic separation for serial data and clock signals across 400–800 V DC bus domains. Use Value: Enables precise, noise-immune sampling at 150 Mbps while meeting AEC-Q100 Grade 0 and reinforced insulation requirements for ASIL-D systems. |
Use Scenario: Isolating gate driver control signals and current sense feedback in dual-active-bridge (DAB) converters. IC Role / Device Role / Timing Role: Four-channel unidirectional isolator transferring PWM commands and fault status across primary/secondary boundaries. Use Value: Guarantees <10 ns propagation delay matching and 100 kV/µs CMTI to prevent shoot-through during fast switching transitions. |
| Traction Inverter Control | Industrial PLC I/O Module |
|
Use Scenario: Isolating encoder position data and inverter status signals between MCU and high-side gate drivers in EV powertrain systems. IC Role / Device Role / Timing Role: Low-power, high-reliability isolator operating at –40 to 125 °C with default-low fail-safe output during MCU brownout. Use Value: Reduces system-level power consumption by 0.25 mA/channel vs. standard Si86S6x, extending thermal margin in compact inverter enclosures. |
Use Scenario: Isolating digital input/output lines between field-side sensors/actuators and controller-side logic in harsh factory environments. IC Role / Device Role / Timing Role: Robust 4-channel isolator with 6000 VRMS withstand and 8.3 mm creepage for IEC 61000-4-5 surge protection compliance. Use Value: Eliminates need for external transient voltage suppressors and optocoupler-based isolation stacks, reducing BOM count and board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641BB-AS1R | Standard-power variant (no "L" suffix); higher IDD (~0.84 mA/channel @ 5 V), identical pinout and timing specs. | Preferred where higher data integrity margin is needed at cost of ~15% higher quiescent current. | Select SI8641BB-AS1R only if system thermal budget permits higher static power; otherwise SI86SL41BC-AS1R is optimal for thermally constrained automotive modules. |
| ADUM141E0BRZ | Analog Devices' 4-channel isolator; 150 Mbps, 5000 VRMS, –40 to 125 °C, but lacks AEC-Q100 qualification and VDE 60747-17 reinforcement. | Suitable for industrial automation but not certified for automotive safety-critical subsystems. | Choose ADUM141E0BRZ only for non-automotive designs requiring second-source availability; SI86SL41BC-AS1R remains mandatory for ISO 26262-compliant BMS or OBC. |
Compared with SI8641BB-AS1R and ADUM141E0BRZ, SI86SL41BC-AS1R uniquely combines AEC-Q100 Grade 0, 6000 VRMS reinforced insulation, and low-quiescent-power operation - making it the only option qualified for ASIL-B/C traction inverter signal isolation without derating or additional safety mechanisms.
Availability
SI86SL41BC-AS1R is available at Aetrix Electronics and suitable for battery management systems, onboard chargers, and traction inverter control requiring stable component supply across automotive production lifecycles.
Supply support for SI86SL41BC-AS1R 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 Si86Sxx family - including SI86SL41BC-AS1R - was designed specifically for high-reliability, high-noise automotive and industrial isolation applications requiring reinforced safety certification and extended temperature operation.
FAQ
What is the isolation voltage rating of SI86SL41BC-AS1R?
SI86SL41BC-AS1R is rated for 6000 VRMS isolation for 1 minute per UL 1577, with reinforced insulation certified to IEC 60747-17, CSA 62368-1, and CQC GB4943.1. This rating applies to the WB SOIC-16 package and supports working voltages up to 1000 VAC in end equipment complying with IEC 61010-1 and IEC 62368-1.
Does SI86SL41BC-AS1R support SPI isolation?
Yes, SI86SL41BC-AS1R supports SPI isolation via its four unidirectional channels: A1–A4 and B1–B4 can be configured as MOSI, MISO, SCLK, and CS lines. While it lacks dedicated SPI control pins (e.g., MCSb, SCSb) found in Si86SSx variants, its pin-compatible routing and 150 Mbps capability make it suitable for standard SPI bus isolation in BMS and OBC applications.
What fail-safe behavior does SI86SL41BC-AS1R implement?
SI86SL41BC-AS1R implements a default-low fail-safe output mode: when VDD1 is unpowered (e.g., MCU reset or brownout), outputs B1–B4 remain logic low as long as VDD2 is powered. This behavior is fixed per the "BC" ordering code and ensures safe shutdown of downstream peripherals such as gate drivers or ADC reference switches.
Is SI86SL41BC-AS1R pin-compatible with other Si86S64x devices?
Yes, SI86SL41BC-AS1R shares identical WB SOIC-16 pinout and footprint with Si86S640/641/642 and Si86SL40/41/42 variants. All use the same A1–A4/VDD1/GND1 and B1–B4/VDD2/GND2 mapping per Figure 2 of the datasheet, enabling drop-in replacement within the same package variant without PCB redesign.
What is the maximum ambient temperature for continuous operation of SI86SL41BC-AS1R?
SI86SL41BC-AS1R is rated for continuous operation from –40 to 125 °C ambient temperature. This range is validated under full-load conditions (all channels active at 150 Mbps, CL = 15 pF) and aligns with AEC-Q100 Grade 0 requirements, making it suitable for under-hood automotive locations including battery disconnect units and inverter control boards.
SI86SL41BC-AS1R 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:
- SPI
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- 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
SI86SL41BC-AS1R FAQ
1.How can I place an order for SI86SL41BC-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL41BC-AS1R 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 SI86SL41BC-AS1R reliable?
The price and inventory of SI86SL41BC-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL41BC-AS1R is usually 5 days.
3.What payment methods are accepted for SI86SL41BC-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL41BC-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL41BC-AS1R?
SI86SL41BC-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL41BC-AS1R 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 SI86SL41BC-AS1R?
For technical support, including SI86SL41BC-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL41BC-AS1R requirements.
6.How does Aetrix verify that SI86SL41BC-AS1R is sourced from the original manufacturer or authorized distributors?
All SI86SL41BC-AS1R 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 SI86SL41BC-AS1R meets industry standards.
7.What is the process for return or replacement of SI86SL41BC-AS1R?
All SI86SL41BC-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL41BC-AS1R, 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 SI86SL41BC-AS1R part is unused and in its original packaging.
Return procedure for SI86SL41BC-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL41BC-AS1R 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
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
