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Skyworks Solutions Inc. SI86SM41EE-AS2R
- Part No.:
- SI86SM41EE-AS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SM41EE-AS2R.pdf
- Description:
- 3.75 KVRMS SLEEP MODE ISOLATOR,
- Quantity:
- Payment:
- Shipping:
Inventory:1,005
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Product details
Overview
SI86SM41EE-AS2R from Skyworks Solutions is a 4-channel reinforced digital isolator with sleep mode control (SMb pin), 6000 VRMS isolation rating, 150 Mbps data rate, and AEC-Q100 qualification for automotive systems. It provides bidirectional signal isolation across an RF-based semiconductor barrier in battery management systems and traction inverters.
For engineers reviewing the SI86SM41EE-AS2R datasheet, SI86SM41EE-AS2R pinout, SI86SM41EE-AS2R application, or SI86SM41EE-AS2R equivalent, this device supports fail-safe default-low output, Schmitt-trigger + CMOS inputs, 10 ns typical propagation delay, and operates from 2.25–5.5 V on both sides - critical for high-noise motor control and isolated ADC interfaces.
Technical Context
The SI86SM41EE-AS2R implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity up to 100 kV/µs. Its architecture includes dedicated SMb (sleep mode active-low) control that disables all transmitters while retaining one channel to monitor SMb state.
It features four isolated channels with two forward (A→B) and two reverse (B→A) directions, tri-state outputs via EN1/EN2, and selectable fail-safe output (low-default per -AS2R suffix). The device meets IEC 60747-17 reinforced insulation and supports dual supply domains (VDD1/VDD2) with independent UVLO and reset thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, CAN FD, and gate driver signaling without timing bottlenecks. |
| Isolation rating | 6000 VRMS (1 min) - enables use in 1000 V+ DC bus systems like EV traction inverters and onboard chargers. |
| Propagation delay | 10 ns typical - ensures tight timing alignment between controller and power stage in real-time motor control loops. |
| Supply voltage | 2.25–5.5 V per side - allows direct interface with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive environments and industrial motor drives. |
| CMTI | 100 kV/µs minimum - rejects fast transient coupling in high-dV/dt SiC/GaN inverter switching nodes. |
| Sleep current | 750 µA per side - reduces standby power in battery management systems during idle states. |
Pinout & Package
SI86SM41EE-AS2R uses a WB SOIC-16 (wide-body small-outline integrated circuit) package with creepage/clearance optimized for 6000 VRMS reinforced insulation. Pin layout follows Figure 3 (Si86SM4x) in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power domain | Supplies and grounds the controller-side logic; requires 0.1 µF + 10 µF bypass capacitors. |
| A1–A4 | Side A digital I/O | Four unidirectional input pins on main side; accept Schmitt-trigger + CMOS thresholds for noise immunity. |
| SMb | Sleep mode control | Active-low input that disables all transmitters except one monitoring channel; pulls device into 750 µA/side sleep. |
| Isolation Barrier | RF-coupled dielectric | Semiconductor-based barrier providing 6000 VRMS reinforced insulation per UL 1577 and IEC 60747-17. |
| B1–B4 | Side B digital I/O | Four unidirectional output pins on isolated side; drive 50 Ω nominal impedance loads with tristate capability. |
| VDD2, GND2 | Side B power domain | Supplies and grounds the power-stage-side logic; independent of VDD1 for galvanic separation. |
Key Features
| Feature | Design Value |
|---|---|
| Sleep mode (SMb) | Reduces quiescent current to 750 µA/side while retaining wake-on-SMb functionality - extends battery life in BMS standby. |
| Fail-safe low-default output | Ensures B1–B4 drive logic low during VDD1 loss - prevents unintended gate turn-on in isolated IGBT/SiC drivers. |
| RF modulation architecture | Eliminates startup initialization delay and avoids LED aging or capacitor drift issues found in optocouplers. |
| Tri-state outputs with EN1/EN2 | Enables shared-bus configurations by disabling outputs without disrupting isolation integrity or timing behavior. |
| Reinforced IEC 60747-17 rating | Validates suitability for functional safety applications up to ASIL-D in automotive powertrain subsystems. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and pack contactor control signals between MCU and high-voltage battery stack. IC Role / Device Role / Timing Role: SI86SM41EE-AS2R provides four independent isolated channels to transmit SOC/SOH telemetry and precharge status across 6000 VRMS barrier. Use Value: Fail-safe low-default output prevents false contactor closure during MCU brownout; 10 ns delay enables synchronized sampling of multiple cells. |
Use Scenario: Transmitting PWM gate signals and fault feedback between inverter MCU and isolated gate drivers in 800 V EV platforms. IC Role / Device Role / Timing Role: SI86SM41EE-AS2R delivers two forward (MCU→driver) and two reverse (driver→MCU) channels with CMTI ≥100 kV/µs. Use Value: RF-based isolation rejects common-mode transients from SiC switching; sleep mode cuts standby power during vehicle park state. |
| Onboard Charger (OBC) | Industrial Motor Drive |
|
Use Scenario: Isolating AC/DC and DC/DC controller communication in bi-directional OBCs with 400–800 V DC link. IC Role / Device Role / Timing Role: SI86SM41EE-AS2R interfaces primary-side digital controller with secondary-side synchronous rectifier and PFC circuits. Use Value: 150 Mbps data rate supports fast closed-loop regulation; wide 2.25–5.5 V supply range accommodates both 3.3 V and 5 V logic domains. |
Use Scenario: Coupling encoder feedback and PWM commands between PLC/controller and servo drive in factory automation. IC Role / Device Role / Timing Role: SI86SM41EE-AS2R isolates position loop signals and gate drive enable lines in IPM-based drives operating at 125 °C ambient. Use Value: AEC-Q100 qualification ensures reliability in harsh industrial environments; 6000 VRMS rating meets IEC 61800-5-1 clearance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM4401BRWZ | 4-channel, 100 Mbps, 5000 VRMS, no sleep mode, 2.7–5.5 V supply | Lacks SMb control and AEC-Q100 qualification; lower isolation rating limits use in 800 V EV systems | Choose when cost sensitivity outweighs automotive qualification and ultra-low sleep current needs. |
| ISO6741FDWR | 4-channel, 50 Mbps, 5000 VRMS, no sleep mode, 1.71–5.5 V supply | Lower data rate and isolation rating; not AEC-Q100 qualified; higher propagation delay (25 ns) | Select for industrial PLC I/O modules where 50 Mbps suffices and extended temperature range is not required. |
Compared with ADUM4401BRWZ and ISO6741FDWR, SI86SM41EE-AS2R delivers higher isolation (6000 vs. 5000 VRMS), faster data rate (150 vs. ≤100 Mbps), automotive qualification, and integrated sleep mode - making it uniquely suited for next-generation EV power electronics requiring both performance and low-power standby.
Availability
SI86SM41EE-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 SI86SM41EE-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 was designed specifically for high-reliability isolation in automotive powertrain and industrial motor control, emphasizing reinforced safety certification, RF-based noise immunity, and low-power operational modes.
FAQ
What does the "-AS2R" suffix indicate in SI86SM41EE-AS2R?
The "-AS2R" suffix denotes an automotive-grade ordering part number with default-low fail-safe output configuration and reinforced 6000 VRMS isolation. SI86SM41EE-AS2R is AEC-Q100 qualified, includes IMDS/CAMDS documentation support, and ships in RoHS-compliant WB SOIC-16 packaging - distinguishing it from commercial variants like SI86SM41ED-AS2R.
How does the SMb pin function in SI86SM41EE-AS2R?
The SMb pin is an active-low sleep mode control input. When pulled low, SI86SM41EE-AS2R disables all transmitter circuits while maintaining one active channel to monitor SMb state, reducing quiescent current to 750 µA per side. When SMb is high or floating, SI86SM41EE-AS2R operates normally with full 150 Mbps capability.
Does SI86SM41EE-AS2R require external start-up initialization?
No. SI86SM41EE-AS2R uses RF-based on/off keying modulation and requires no firmware initialization or calibration sequence. Outputs follow inputs after a 0.3 ms start-up stabilization period once VDD1 and VDD2 exceed 2.18 V UVLO+, and the device enters normal operation without handshake or configuration overhead.
What safety certifications apply to SI86SM41EE-AS2R?
SI86SM41EE-AS2R holds pending UL 1577 recognition (6000 VRMS), CSA 62368-1/60601-1, VDE 60747-17 (reinforced insulation), and CQC GB4943.1 approvals. Its WB SOIC-16 package meets creepage/clearance requirements for reinforced insulation in automotive and industrial end-equipment certified to IEC 61010-1 or IEC 62368-1.
Can SI86SM41EE-AS2R replace optocouplers in existing designs?
Yes - SI86SM41EE-AS2R offers direct functional replacement for 4-channel optocouplers such as HCPL-0723 or TLP2362, with superior performance: 15× higher data rate (150 vs. 10 Mbps), 10× lower propagation delay (10 vs. 100 ns), and no LED degradation over time. Layout changes are minimal due to identical WB SOIC-16 footprint and pinout compatibility.
SI86SM41EE-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):
- 42ns, 42ns
- Pulse Width Distortion (Max):
- 2ns
- 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
SI86SM41EE-AS2R FAQ
1.How can I place an order for SI86SM41EE-AS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SM41EE-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 SI86SM41EE-AS2R reliable?
The price and inventory of SI86SM41EE-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SM41EE-AS2R is usually 5 days.
3.What payment methods are accepted for SI86SM41EE-AS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SM41EE-AS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SM41EE-AS2R?
SI86SM41EE-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SM41EE-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 SI86SM41EE-AS2R?
For technical support, including SI86SM41EE-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SM41EE-AS2R requirements.
6.How does Aetrix verify that SI86SM41EE-AS2R is sourced from the original manufacturer or authorized distributors?
All SI86SM41EE-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 SI86SM41EE-AS2R meets industry standards.
7.What is the process for return or replacement of SI86SM41EE-AS2R?
All SI86SM41EE-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SM41EE-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 SI86SM41EE-AS2R part is unused and in its original packaging.
Return procedure for SI86SM41EE-AS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SM41EE-AS2R Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
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SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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