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Skyworks Solutions Inc. SI86SM41EC-IS1R
- Part No.:
- SI86SM41EC-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86SM41EC-IS1R.pdf
- Description:
- 6.0 KVRMS SLEEP MODE ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:4,387
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Product details
Overview
SI86SM41EC-IS1R from Skyworks Solutions is a 4-channel reinforced digital isolator with sleep mode control (SMb pin), 150 Mbps data rate, 10 ns typical propagation delay, and 6000 VRMS isolation rating in a WB SOIC-16 package. It supports bidirectional signal isolation in industrial motor drives and automotive battery management systems where low-power operation during idle states is critical.
For engineers reviewing the SI86SM41EC-IS1R datasheet, SI86SM41EC-IS1R pinout, SI86SM41EC-IS1R application, or SI86SM41EC-IS1R equivalent, this page delivers verified technical context, exact pin functions, fail-safe output behavior under UVLO, sleep-mode power consumption (750 µA per side), and real-world automotive/industrial use cases aligned to AEC-Q100 qualification and IEC 60747-17 reinforced insulation.
Technical Context
The SI86SM41EC-IS1R implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling deterministic timing. Its SMb pin provides active-low sleep control that disables all transmitters while retaining one channel for wake-up detection.
It features Schmitt-trigger + CMOS threshold inputs for noise immunity, tri-state outputs with enable, and selectable fail-safe mode (default high or low) defined at ordering. The device operates across 2.25–5.5 V supplies and –40 to 125 °C, meeting AEC-Q100 Grade 0 requirements for automotive traction inverters and onboard chargers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces like isolated SPI and CAN FD physical layer signaling without protocol translation. |
| Propagation delay | 10 ns typical - enables tight timing budgets in closed-loop motor control and real-time ADC/DAC isolation. |
| Isolation rating | 6000 VRMS - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for 600 VAC+ systems including industrial inverters and EV battery packs. |
| Sleep current | 750 µA per side - reduces system standby power in battery management units without sacrificing wake-up responsiveness. |
| Transient immunity | 100 kV/µs minimum - ensures robust operation in high-noise environments such as motor drives and power converters with fast-switching SiC/GaN FETs. |
| Supply voltage | 2.25 to 5.5 V - allows direct interface with 3.3 V and 5 V logic domains without level-shifting circuitry. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications and industrial automation enclosures without derating. |
Pinout & Package
SI86SM41EC-IS1R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance optimized for 6000 VRMS reinforced isolation. Pin 1 is marked with a dot; pins 1–8 are Side A (input side), pins 9–16 are Side B (output side), separated by an internal semiconductor isolation barrier.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Side A supply | Main-side power input (2.25–5.5 V); requires 0.1 µF + 10 µF bypass capacitors near pin. |
| GND1 | Side A ground | Reference for Side A logic and supply; must be routed separately from GND2 to maintain isolation integrity. |
| A1–A4 | Side A I/O | Four unidirectional input channels from controller domain; accept CMOS/Schmitt-trigger thresholds. |
| SMb | Sleep mode control | Active-low input that places entire device into low-power sleep (750 µA/side); high or open = normal operation. |
| GND2 | Side B ground | Reference for Side B logic; galvanically isolated from GND1; forms safety barrier with ≥8 mm creepage. |
| B1–B4 | Side B I/O | Four isolated output channels to peripheral domain; tri-state capable via EN1/EN2 (not present on SI86SM41EC-IS1R). |
| VDD2 | Side B supply | Isolated-side power input (2.25–5.5 V); independent of VDD1; enables dual-supply system partitioning. |
Key Features
| Feature | Design Value |
|---|---|
| Sleep mode control (SMb) | Reduces total quiescent current to 750 µA per side while retaining wake-up capability via dedicated monitoring channel. |
| Reinforced IEC 60747-17 rating | Validates 6000 VRMS withstand for 1 minute and supports end-equipment certification to IEC 62368-1 and IEC 60601-1. |
| No start-up initialization | Outputs follow inputs immediately after UVLO exit (tSTART = 0.3 ms); eliminates boot-time uncertainty in safety-critical systems. |
| Selectable fail-safe output | Default high or low state during VDD loss is fixed at manufacturing - prevents undefined states in power-loss scenarios. |
| High CMTI immunity | 100 kV/µs minimum common-mode transient immunity ensures reliable operation during fast dV/dt events in SiC/GaN inverters. |
Applications
| Industrial Motor Control | Automotive Battery Management |
|---|---|
Use Scenario: Isolating gate driver signals and feedback loops in 3-phase inverter stacks driving PMSM motors. IC Role / Device Role / Timing Role: Bidirectional signal isolator for PWM inputs and current-sense ADC outputs across high-voltage DC bus. Use Value: 10 ns propagation delay enables precise dead-time control; 6000 VRMS rating supports 800 V battery systems with margin. | Use Scenario: Isolating cell voltage monitoring and balancing signals between high-voltage battery pack and low-voltage MCU domain. IC Role / Device Role / Timing Role: Four-channel digital isolator providing reinforced barrier for analog front-end SPI communication and fault reporting lines. Use Value: AEC-Q100 Grade 0 qualification ensures reliability at 125 °C ambient; sleep mode cuts standby power in always-on BMS nodes. |
| Isolated Switch-Mode Power Supply | Medical Isolated Data Acquisition |
Use Scenario: Providing feedback isolation for secondary-side voltage regulation and primary-side PWM controller synchronization. IC Role / Device Role / Timing Role: High-speed isolator for opto-replacement in flyback and LLC resonant converters operating up to 1 MHz switching frequency. Use Value: 150 Mbps data rate supports fast error reporting; 2.25–5.5 V supply range matches both 3.3 V and 5 V controller rails. | Use Scenario: Isolating ECG/EEG sensor front-end ADC outputs and control signals in Class II medical devices requiring patient protection. IC Role / Device Role / Timing Role: Reinforced isolator for SPI-based isolated ADC interface and isolated GPIO for alarm/status signaling. Use Value: IEC 60601-1 compliance support and 6000 VRMS rating meet BF-rated patient-connected equipment requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2401ARWZ | 4-channel, 1 Mbps max data rate; 50 ns propagation delay; 2500 VRMS isolation; no sleep mode pin. | Lower speed and isolation rating limit use to sub-100 V industrial controls and non-automotive BMS. | Choose when cost sensitivity outweighs performance needs and 150 Mbps is unnecessary. |
| ISO6741FDWR | 4-channel, 50 Mbps max data rate; 25 ns propagation delay; 5000 VRMS; no SMb pin; lower CMTI (85 kV/µs). | Suitable for general-purpose isolation but lacks AEC-Q100 qualification and failsafe configurability. | Prefer for commercial-grade systems where automotive qualification and ultra-low sleep current are not required. |
Compared with ADUM2401ARWZ and ISO6741FDWR, SI86SM41EC-IS1R delivers 3× higher data rate, 2× tighter propagation delay, 20% higher isolation voltage, AEC-Q100 qualification, and unique SMb-controlled sleep mode-making it optimal for next-generation EV power electronics and high-density industrial drives.
Availability
SI86SM41EC-IS1R is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management systems, and isolated switch-mode power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SI86SM41EC-IS1R 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/Mxx/Qxx/Sxx family was designed for high-reliability isolation in harsh environments-specifically targeting automotive electrification, industrial automation, and medical systems demanding reinforced insulation and AEC-Q100 compliance.
FAQ
What is the isolation voltage rating of the SI86SM41EC-IS1R and which safety standards does it meet?
The SI86SM41EC-IS1R has a 6000 VRMS isolation rating per UL 1577 for 1 minute and is certified to IEC 60747-17 (reinforced insulation), CSA 62368-1, CSA 60601-1, and CQC GB4943.1. This enables its use in high-voltage systems such as 800 V EV battery packs and industrial 690 V AC drives where reinforced barrier integrity is mandated.
How does the SMb pin function on the SI86SM41EC-IS1R, and what is its impact on power consumption?
The SMb pin on the SI86SM41EC-IS1R is an active-low sleep mode control. When pulled low, it disables all transmitter circuits except one monitoring channel, reducing total current to 750 µA per side. When high or open, the device operates normally at full data rate. This feature is essential for battery-powered BMS nodes requiring ultra-low standby power.
Does the SI86SM41EC-IS1R require external initialization or configuration after power-up?
No, the SI86SM41EC-IS1R requires no start-up initialization. After exiting undervoltage lockout (UVLO) - which occurs within 0.3 ms of VDD crossing 2.18 V - outputs immediately follow inputs. This deterministic behavior eliminates boot-time uncertainty in safety-critical applications like motor control and medical devices.
What is the propagation delay and pulse width distortion specification for the SI86SM41EC-IS1R?
The SI86SM41EC-IS1R has a typical propagation delay of 10 ns and pulse width distortion of 3.5 ns. These values are measured under standard conditions (VDD = 5.0 V, TA = 25 °C) and remain stable across temperature and supply voltage, enabling precise timing in closed-loop control systems and high-speed serial interfaces.
Is the SI86SM41EC-IS1R qualified for automotive applications, and what does its AEC-Q100 Grade 0 rating mean?
Yes, the SI86SM41EC-IS1R is AEC-Q100 qualified Grade 0, meaning it is tested and rated for operation from –40 to +150 °C junction temperature - exceeding standard automotive requirements. This qualification covers stress testing across temperature cycling, humidity, and ESD, making it suitable for under-hood applications including traction inverters and onboard chargers.
SI86SM41EC-IS1R 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:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 6000Vrms
- Common Mode Transient Immunity (Min):
- 100kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 14ns, 14ns
- Pulse Width Distortion (Max):
- 2ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 2.25V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI86SM41EC-IS1R FAQ
1.How can I place an order for SI86SM41EC-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SM41EC-IS1R 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 SI86SM41EC-IS1R reliable?
The price and inventory of SI86SM41EC-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SM41EC-IS1R is usually 5 days.
3.What payment methods are accepted for SI86SM41EC-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SM41EC-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SM41EC-IS1R?
SI86SM41EC-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SM41EC-IS1R 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 SI86SM41EC-IS1R?
For technical support, including SI86SM41EC-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SM41EC-IS1R requirements.
6.How does Aetrix verify that SI86SM41EC-IS1R is sourced from the original manufacturer or authorized distributors?
All SI86SM41EC-IS1R 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 SI86SM41EC-IS1R meets industry standards.
7.What is the process for return or replacement of SI86SM41EC-IS1R?
All SI86SM41EC-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SM41EC-IS1R, 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 SI86SM41EC-IS1R part is unused and in its original packaging.
Return procedure for SI86SM41EC-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SM41EC-IS1R Tags
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ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
Texas Instruments
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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