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Skyworks Solutions Inc. SI86SM42EE-AS2R
- Part No.:
- SI86SM42EE-AS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SM42EE-AS2R.pdf
- Description:
- 6.0 KVRMS SLEEP MODE ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:2,322
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Product details
Overview
SI86SM42EE-AS2R from Skyworks Solutions is a four-channel reinforced digital isolator with two forward and two reverse signal paths, 6000 VRMS isolation rating, AEC-Q100 qualification, and integrated sleep mode control (SMb pin). It operates across 2.25–5.5 V supplies and supports up to 150 Mbps data rate in industrial and automotive isolated interfaces such as battery management systems and motor control gate drivers.
For engineers reviewing the SI86SM42EE-AS2R datasheet, SI86SM42EE-AS2R pinout, SI86SM42EE-AS2R application, or SI86SM42EE-AS2R equivalent, key selection factors include its reinforced IEC 60747-17 rating, 10 ns typical propagation delay, tri-state output enable, fail-safe default-high/low option, and automotive-grade thermal range (–40 to 125 °C).
Technical Context
The SI86SM42EE-AS2R implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity (100 kV/µs CMTI). Its architecture integrates independent UVLO and reset circuitry per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.
Sleep mode is controlled via the active-low SMb pin: when pulled low, it disables all transmitters except one monitoring channel, reducing quiescent current to 750 µA per side while retaining wake-up capability. The device supports selectable fail-safe output states (default high or low) during unpowered input conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including isolated SPI and QSPI interfaces |
| Isolation rating | 6000 VRMS for 1 minute - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 |
| Propagation delay | 10 ns typical - enables precise timing-critical applications like gate driver control and ADC sampling |
| Supply voltage | 2.25–5.5 V - compatible with both 3.3 V and 5 V logic domains without level shifting |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive and industrial environments |
| CMTI | ≥100 kV/µs - ensures reliable operation in high-noise motor drive and power inverter systems |
| Sleep current | 750 µA per side - reduces system standby power without sacrificing fast wake-up response |
Pinout & Package
SI86SM42EE-AS2R is housed in a WB SOIC-16 package (wide-body, 10.3 mm creepage/clearance), supporting 6000 VRMS isolation. Pin assignments follow the Si86SM4x family layout with dedicated side-A and side-B power/ground, four bidirectional I/O channels (A1–A4/B1–B4), and SMb sleep control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A supply and ground | Power domain for input-side logic; requires 0.1 µF + 10 µF bypass capacitors |
| VDD2, GND2 | Side B supply and ground | Power domain for output-side logic; independent regulation enables dual-supply system partitioning |
| A1–A4 | Side A digital I/O | Four configurable channels; direction determined by internal RF modulation path, not external control |
| B1–B4 | Side B digital I/O | Isolated mirror of A1–A4; supports mixed forward/reverse signal flow per channel pair |
| SMb | Sleep mode enable | Active-low pin that shuts down all transmitters except one monitoring channel for wake-up detection |
| NC | No connect | Pin 9 is internally unconnected; must be left floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift issues of optocouplers; no start-up initialization required |
| Reinforced safety certification | UL 1577, CSA 62368-1/60601-1, VDE 60747-17, CQC GB4943.1 - enables single-component compliance in medical and EV systems |
| Tri-state outputs with enable | EN1/EN2 pins allow synchronized output disable across all channels on respective sides for bus arbitration |
| Schmitt trigger + CMOS inputs | High noise immunity with 0.15 × VDDx hysteresis; compatible with slow-edge or noisy microcontroller GPIOs |
| Selectable fail-safe mode | Ordering option determines default output state (high or low) during VDD1 loss - critical for safe shutdown in BMS |
| Automotive-grade manufacturing | AEC-Q100 qualified with AIAG PPAP, IMDS/CAMDS support - meets zero-defect requirements for traction inverters |
Applications
| Motor Control Gate Driver Isolation | Battery Management System (BMS) Communication |
|---|---|
Use Scenario: Isolating PWM signals between MCU and IGBT/SiC gate drivers in 3-phase inverters. IC Role / Device Role / Timing Role: SI86SM42EE-AS2R provides four independent isolated channels: two forward (MCU → driver) for PWM, two reverse (driver → MCU) for fault feedback. Use Value: 10 ns propagation delay ensures tight timing alignment between phase legs; 6000 VRMS withstand enables direct connection to 800 V DC-link systems. | Use Scenario: Isolating UART or SPI communication between cell monitor ICs and main BMS controller across high-voltage battery packs. IC Role / Device Role / Timing Role: SI86SM42EE-AS2R routes bidirectional serial data across isolation barrier while maintaining galvanic separation between 400–900 V pack and 12 V control domain. Use Value: AEC-Q100 qualification guarantees reliability over 15+ years of automotive service life; sleep mode reduces idle current in always-on monitoring nodes. |
| Isolated Switch-Mode Power Supply Feedback | Industrial PLC Digital I/O Module |
Use Scenario: Transmitting error amplifier output and synchronous rectifier control signals across primary-secondary boundary in LLC resonant converters. IC Role / Device Role / Timing Role: SI86SM42EE-AS2R carries analog-derived PWM feedback (forward) and gate control (reverse) with sub-15 ns total jitter. Use Value: 150 Mbps capability supports high-frequency switching (>1 MHz); reinforced insulation eliminates need for external Y-capacitors in Class I medical designs. | Use Scenario: Isolating 24 V DC field I/O signals (digital inputs/outputs) from 3.3 V PLC CPU backplane in factory automation cabinets. IC Role / Device Role / Timing Role: SI86SM42EE-AS2R serves as four-channel digital isolator for discrete sensor/actuator interfacing with programmable logic controller core. Use Value: Wide –40 to 125 °C operating range ensures stable operation in uncooled control panels; tri-state outputs simplify hot-swap I/O module replacement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2402BRWZ | 4-channel, 25 Mbps max, 2500 VRMS, no sleep mode, SOIC-16 | Limited to lower-speed industrial I/O; lacks automotive qualification and reinforced isolation | Choose ADUM2402BRWZ only if cost sensitivity outweighs speed, safety, and thermal requirements |
| ISO7742FDWR | 4-channel, 100 Mbps, 5000 VRMS, no SMb pin, SOIC-16 | Missing sleep mode and AEC-Q100 qualification; lower isolation rating restricts use in >400 V systems | Select ISO7742FDWR for non-automotive 24 V PLC modules where 5000 VRMS suffices |
Compared with ADUM2402BRWZ and ISO7742FDWR, SI86SM42EE-AS2R delivers 150 Mbps throughput, 6000 VRMS reinforced isolation, AEC-Q100 qualification, and hardware-controlled sleep mode - making it uniquely suited for next-generation EV traction inverters and high-reliability industrial power systems.
Availability
SI86SM42EE-AS2R is available at Aetrix Electronics and suitable for battery management systems, motor control gate drivers, isolated switch-mode power supplies, and industrial PLC I/O modules requiring stable component supply and long-term lifecycle support.
Supply support for SI86SM42EE-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.
The Si86Sxx family was designed specifically for high-reliability, high-speed digital isolation in automotive electrification and industrial automation, emphasizing reinforced safety, low-power operation, and electromagnetic robustness.
FAQ
What is the isolation voltage rating of SI86SM42EE-AS2R and which safety standards does it meet?
SI86SM42EE-AS2R provides 6000 VRMS isolation for 1 minute per UL 1577 and is certified to IEC 60747-17 (reinforced), CSA 62368-1/60601-1, and CQC GB4943.1. This enables single-component compliance in medical equipment and 800 V battery electric vehicle systems without additional isolation barriers.
Does SI86SM42EE-AS2R require external startup initialization or configuration?
No, SI86SM42EE-AS2R uses RF-based on/off keying and requires no firmware initialization, register writes, or calibration. It begins transmitting valid data within 0.3 ms of VDD reaching UVLO+ (2.18 V), with outputs held low by 100 kΩ pulldowns until stabilization.
How does the SMb pin function in SI86SM42EE-AS2R and what is its impact on power consumption?
The SMb pin is an active-low sleep mode control. When driven low, SI86SM42EE-AS2R disables all transmitters except one monitoring channel, reducing quiescent current to 750 µA per side. Wake-up occurs within microseconds when SMb is released high or left open.
What are the fail-safe output options available for SI86SM42EE-AS2R and how are they selected?
SI86SM42EE-AS2R offers ordering options for default-high or default-low output states during VDD1 loss. This is implemented at wafer-level mask configuration - not user-programmable. The "EE" suffix in SI86SM42EE-AS2R indicates the default-high variant.
Can SI86SM42EE-AS2R interface directly with 3.3 V and 5 V logic families on opposite sides of the isolation barrier?
Yes, SI86SM42EE-AS2R supports independent 2.25–5.5 V supplies on VDD1 and VDD2, allowing direct connection to 3.3 V microcontrollers on Side A and 5 V gate drivers on Side B. Input thresholds scale with VDD (VIH = 0.7×VDDx, VIL = 0.3×VDDx), ensuring interoperability without level shifters.
SI86SM42EE-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:
- 2/2
- 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
SI86SM42EE-AS2R FAQ
1.How can I place an order for SI86SM42EE-AS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SM42EE-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 SI86SM42EE-AS2R reliable?
The price and inventory of SI86SM42EE-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SM42EE-AS2R is usually 5 days.
3.What payment methods are accepted for SI86SM42EE-AS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SM42EE-AS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SM42EE-AS2R?
SI86SM42EE-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SM42EE-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 SI86SM42EE-AS2R?
For technical support, including SI86SM42EE-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SM42EE-AS2R requirements.
6.How does Aetrix verify that SI86SM42EE-AS2R is sourced from the original manufacturer or authorized distributors?
All SI86SM42EE-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 SI86SM42EE-AS2R meets industry standards.
7.What is the process for return or replacement of SI86SM42EE-AS2R?
All SI86SM42EE-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SM42EE-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 SI86SM42EE-AS2R part is unused and in its original packaging.
Return procedure for SI86SM42EE-AS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SM42EE-AS2R 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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