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Skyworks Solutions Inc. SI86SM40BE-IS2R
- Part No.:
- SI86SM40BE-IS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SM40BE-IS2R.pdf
- Description:
- 6.0 KVRMS SLEEP MODE ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:1,159
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Product details
Overview
SI86SM40BE-IS2R 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 operation across –40 to 125 °C. It provides bidirectional signal isolation for industrial motor control, battery management systems, and isolated ADC interfaces using two forward and two reverse channels in a WB SOIC-16 package.
For engineers reviewing the SI86SM40BE-IS2R datasheet, SI86SM40BE-IS2R pinout, SI86SM40BE-IS2R application, or SI86SM40BE-IS2R equivalent, key selection criteria include its 10 ns propagation delay, 3.5 ns pulse width distortion, fail-safe default-low output option, and AEC-Q100 qualification for automotive-grade reliability in high-noise power electronics environments.
Technical Context
The SI86SM40BE-IS2R implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating start-up initialization and enabling robust noise immunity without optical degradation. Its architecture supports independent side-A and side-B undervoltage lockout (UVLO) with 2.10–2.25 V thresholds and reset detection at ~1.7 V.
Sleep mode is activated via the active-low SMb pin, reducing quiescent current to 750 µA per side while retaining one always-on channel to monitor SMb status. The device uses Schmitt-trigger + CMOS threshold inputs and tri-state outputs with enable, supporting fail-safe default-high or default-low behavior per ordering option.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including isolated SPI and QSPI bus extensions. |
| Isolation rating | 6000 VRMS - enables use in reinforced insulation applications per IEC 60747-17 and UL 1577. |
| Propagation delay | 10 ns typical - ensures tight timing alignment in real-time control loops such as motor gate drivers. |
| Pulse width distortion | 3.5 ns typical - maintains duty cycle integrity for clock distribution and PWM signal isolation. |
| Supply voltage | 2.25 to 5.5 V - allows direct interface with 3.3 V and 5 V logic domains without level shifting. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive and industrial ambient conditions. |
| Transient immunity | ≥100 kV/µs - suppresses fast common-mode transients in switching power supplies and inverters. |
Pinout & Package
SI86SM40BE-IS2R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance compliant for 6000 VRMS working voltage. Pin 1 is VDD1; pin 16 is GND2; isolation barrier lies between pins 1–8 (Side A) and 9–16 (Side B).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 | Side A / Side B supply | Independent 2.25–5.5 V power domains enable galvanic separation of logic and power sections. |
| GND1, GND2 | Side A / Side B ground | Physically separated grounds prevent ground-loop currents and noise coupling across isolation barrier. |
| A1–A4 | Side A digital I/O | Four input/output channels on primary side; configurable as forward or reverse per channel mapping. |
| 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 pin that disables all transmitters except one monitoring channel, reducing quiescent current to 750 µA/side. |
| NC | No connect | Pin 9 is unconnected - must be left floating or tied to GND per layout guidelines to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and CMTI limitations of optocouplers; achieves >100 kV/µs common-mode transient immunity. |
| Schmitt-trigger + CMOS inputs | Provides 0.15 × VDD input hysteresis for reliable noise rejection in EMI-heavy motor drive and inverter environments. |
| Selectable fail-safe mode | Default-low output state during power loss ensures safe shutdown of downstream gate drivers or protection circuits. |
| Tri-state outputs with enable | EN1/EN2 pins allow synchronized output disable across all channels on respective sides for system-level power sequencing. |
| AEC-Q100 qualification | Validated for automotive applications including onboard chargers and traction inverters per Grade 0 (–40 to +125 °C). |
Applications
| Motor Control Gate Driver Isolation | Isolated ADC/DAC Interface |
|---|---|
Use Scenario: Isolating PWM signals between MCU and IGBT/SiC gate driver ICs in three-phase inverters. IC Role / Device Role / Timing Role: Bidirectional signal isolator providing 10 ns propagation delay and 3.5 ns pulse width distortion for precise timing-critical gate control. Use Value: Prevents shoot-through by maintaining accurate edge alignment between complementary PWM channels across isolation barrier. | Use Scenario: Connecting isolated sigma-delta ADCs (e.g., AMC1306) to microcontrollers in high-voltage battery monitoring systems. IC Role / Device Role / Timing Role: Digital isolator transmitting serial data streams with 150 Mbps capability and low jitter for high-resolution sampling. Use Value: Enables 16+ bit effective resolution by suppressing ground bounce and common-mode noise coupling into analog front-end. |
| Onboard Charger Communication | Battery Management System (BMS) |
Use Scenario: Isolating CAN or UART communication between OBC controller and AC/DC power stage in EV charging units. IC Role / Device Role / Timing Role: Four-channel isolator supporting dual-directional data flow with SMb-controlled sleep mode during standby. Use Value: Reduces system standby power by 75% via 750 µA/side sleep current while retaining fast wake-up response. | Use Scenario: Isolating cell voltage measurement ICs (e.g., BQ796xx) from host MCU in multi-cell lithium-ion battery packs. IC Role / Device Role / Timing Role: Reinforced isolator with 6000 VRMS rating meeting IEC 62368-1 and IEC 60601-1 requirements for medical-grade BMS. Use Value: Ensures functional safety compliance and prevents fault propagation from high-voltage stack to low-voltage control domain. |
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 max data rate; 2500 VRMS isolation; no sleep mode pin; 5 V only supply. | Limited to lower-speed industrial PLC I/O modules; unsuitable for 150 Mbps SPI or automotive AEC-Q100 designs. | Choose when cost sensitivity outweighs speed and automotive qualification requirements. |
| ISO6741FDWR | 4-channel, 50 Mbps max data rate; 5000 VRMS; no SMb pin; supports 1.8–5.5 V supply but lacks AEC-Q100 certification. | Fits consumer-grade isolated sensors or non-safety-critical power supplies; not approved for traction inverter use. | Select for general-purpose isolation where 150 Mbps and reinforced 6000 VRMS are unnecessary. |
Compared with ADUM2400ARWZ and ISO6741FDWR, SI86SM40BE-IS2R delivers 6× higher data rate, 20% higher isolation voltage, integrated sleep mode for ultra-low-power standby, and full AEC-Q100 Grade 0 qualification-making it uniquely suited for next-generation EV power electronics and high-reliability industrial automation.
Availability
SI86SM40BE-IS2R is available at Aetrix Electronics and suitable for industrial motor control, automotive onboard chargers, and isolated ADC interfaces requiring stable component supply across extended temperature and high-reliability applications.
Supply support for SI86SM40BE-IS2R 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 specifically for high-noise, high-reliability isolation in automotive traction inverters, industrial motor drives, and medical power systems-emphasizing reinforced safety, low latency, and AEC-Q100 compliance.
FAQ
What is the isolation voltage rating of the SI86SM40BE-IS2R and which safety standards does it meet?
The SI86SM40BE-IS2R has a 6000 VRMS isolation rating per UL 1577 and meets reinforced insulation requirements per IEC 60747-17, CSA 62368-1 and 60601-1, and CQC GB4943.1. This enables its use in safety-critical applications such as EV battery management and medical power supplies where double or reinforced insulation is mandated.
Does the SI86SM40BE-IS2R support fail-safe operation during power loss?
Yes, the SI86SM40BE-IS2R includes a selectable fail-safe mode. As indicated by the "BE" suffix in the part number, it defaults to low-output state when the input supply is unpowered but the output supply remains active-ensuring predictable shutdown behavior in gate driver or protection circuit applications.
How does the SMb pin function in the SI86SM40BE-IS2R?
The SMb pin is an active-low sleep mode control input. When pulled low, it disables all transmitter circuits except one dedicated channel that continuously monitors SMb, reducing total quiescent current to 750 µA per side. Driving SMb high or leaving it open restores full 150 Mbps operation with 10 ns propagation delay.
What package type is used for the SI86SM40BE-IS2R and why is it significant?
The SI86SM40BE-IS2R uses a wide-body SOIC-16 (WB SOIC-16) package. Its increased creepage and clearance distances support the 6000 VRMS isolation rating and comply with reinforced insulation requirements for high-voltage applications such as industrial inverters and EV charging systems.
Is the SI86SM40BE-IS2R qualified for automotive applications?
Yes, the SI86SM40BE-IS2R is AEC-Q100 qualified (Grade 0, –40 to +125 °C) and supports AIAG-compliant PPAP documentation. It is explicitly designed for automotive applications including onboard chargers, battery management systems, and traction inverters, with manufacturing flows optimized for low defectivity and long-term reliability.
SI86SM40BE-IS2R 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:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 4/0
- 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
SI86SM40BE-IS2R FAQ
1.How can I place an order for SI86SM40BE-IS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SM40BE-IS2R 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 SI86SM40BE-IS2R reliable?
The price and inventory of SI86SM40BE-IS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SM40BE-IS2R is usually 5 days.
3.What payment methods are accepted for SI86SM40BE-IS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SM40BE-IS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SM40BE-IS2R?
SI86SM40BE-IS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SM40BE-IS2R 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 SI86SM40BE-IS2R?
For technical support, including SI86SM40BE-IS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SM40BE-IS2R requirements.
6.How does Aetrix verify that SI86SM40BE-IS2R is sourced from the original manufacturer or authorized distributors?
All SI86SM40BE-IS2R 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 SI86SM40BE-IS2R meets industry standards.
7.What is the process for return or replacement of SI86SM40BE-IS2R?
All SI86SM40BE-IS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SM40BE-IS2R, 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 SI86SM40BE-IS2R part is unused and in its original packaging.
Return procedure for SI86SM40BE-IS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SM40BE-IS2R 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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