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Skyworks Solutions Inc. SI86SM41EE-IS2R
- Part No.:
- SI86SM41EE-IS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86SM41EE-IS2R.pdf
- Description:
- 3.75 KVRMS SLEEP MODE ISOLATOR,
- Quantity:
- Payment:
- Shipping:
Inventory:4,539
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Product details
Overview
SI86SM41EE-IS2R from Skyworks Solutions is a four-channel digital isolator with reinforced 6000 VRMS isolation, sleep mode control (SMb pin), and bidirectional signal transfer across an RF-based semiconductor barrier. It operates from 2.25 to 5.5 V on both sides, delivers 10 ns typical propagation delay, supports up to 150 Mbps data rate, and is AEC-Q100 qualified for automotive battery management systems.
For engineers reviewing the SI86SM41EE-IS2R datasheet, SI86SM41EE-IS2R pinout, SI86SM41EE-IS2R application, or SI86SM41EE-IS2R equivalent, key selection criteria include its 6000 VRMS reinforced insulation per UL 1577 and VDE 60747-17, fail-safe default-low output option, 3.5 ns pulse width distortion, and sleep-mode current of 750 µA per side - all critical for isolated motor control gate drivers and onboard charger communication interfaces.
Technical Context
The SI86SM41EE-IS2R implements RF-based on/off keying modulation across a monolithic semiconductor isolation barrier, eliminating startup initialization and enabling deterministic timing behavior. Its architecture includes dedicated transmitter (HF XMTR) and receiver (HF RCVR) circuits per channel, Schmitt-trigger + CMOS threshold inputs for noise immunity, and independent undervoltage lockout (UVLO) monitors on both sides with 2.10–2.25 V rising threshold.
Sleep mode is controlled via the active-low SMb pin, which disables all transmitters except one monitoring channel to detect wake-up events. Output enable (EN1/EN2) pins provide tri-state control, while fail-safe logic ensures outputs default to low when VDD1 is unpowered but VDD2 remains active - confirmed in Table 4 of the datasheet for Mxx-series ordering options.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 6000 VRMS reinforced insulation per UL 1577 (1 min), certified to VDE 60747-17 and CSA 62368-1. |
| Data Rate | DC to 150 Mbps - supports high-speed CAN FD, SPI, and gate driver signaling without protocol translation. |
| Propagation Delay | 10 ns typical - enables tight-timing loops in isolated ADC sampling and PWM feedback paths. |
| Pulse Width Distortion | 3.5 ns typical - preserves duty cycle fidelity for precision motor control and digital power timing. |
| Supply Voltage Range | 2.25 V to 5.5 V on both sides - allows interoperability with 3.3 V microcontrollers and 5 V analog front-ends. |
| Sleep Mode Current | 750 µA per side - reduces standby power in battery management systems during idle states. |
| Transient Immunity | ≥100 kV/µs CMTI - maintains signal integrity in noisy inverter switching environments. |
Pinout & Package
SI86SM41EE-IS2R uses a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance optimized for 6000 VRMS working voltage. Pin 1 is VDD1; pin 16 is VDD2; isolation barrier lies between pins 1–8 (Side A) and 9–16 (Side B).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 | Independent supply rails | Enable galvanic separation of logic domains; each requires 0.1 µF + 10 µF bypass capacitors. |
| GND1, GND2 | Side A and Side B grounds | Must be kept physically separated on PCB to maintain isolation integrity and meet creepage requirements. |
| A1–A4 | Side A digital I/O | Four input/output channels on primary side; support Schmitt-trigger + CMOS thresholds for noise rejection. |
| 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 transmitters while retaining wake-up detection capability. |
| NC | No-connect | Pin 9 is not bonded; must remain unconnected to avoid compromising isolation barrier performance. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates LED aging and temperature drift issues of optocouplers; provides stable timing over –40 to 125 °C. |
| Reinforced safety certification | UL 1577, VDE 60747-17, CSA 62368-1, and CQC GB4943.1 compliance enables single-component isolation in medical and EV systems. |
| Selectable fail-safe output | Default-low configuration ensures safe shutdown state in BMS and traction inverter fault conditions. |
| Tri-state output enable | EN1/EN2 pins allow centralized control of all outputs on respective sides - simplifies bus arbitration in multi-device systems. |
| High electromagnetic immunity | 100 kV/µs common-mode transient immunity prevents false triggering during IGBT switching transients. |
Applications
| Motor Control Gate Drivers | Onboard Charger Communication |
|---|---|
Use Scenario: Isolating PWM signals between MCU and high-voltage IGBT/MOSFET gate drivers in industrial servo drives. IC Role / Device Role / Timing Role: Bidirectional signal isolator providing 10 ns propagation delay and 3.5 ns pulse width distortion to preserve dead-time accuracy. Use Value: Enables precise timing-critical gate drive with 6000 VRMS reinforced insulation, meeting IEC 61800-5-1 functional safety requirements. | Use Scenario: Isolating UART or SPI lines between vehicle battery management controller and AC/DC converter control unit. IC Role / Device Role / Timing Role: Four-channel digital isolator supporting 150 Mbps data rate for real-time charging status reporting and fault signaling. Use Value: Sleep mode (750 µA/side) reduces quiescent power during standby, extending range in BEV applications. |
| Battery Management Systems | Traction Inverter Monitoring |
Use Scenario: Isolating cell voltage measurement data and balancing commands between high-side analog front-end and low-side MCU in EV battery packs. IC Role / Device Role / Timing Role: Reinforced isolator with default-low fail-safe output ensuring safe shutdown if primary supply fails. Use Value: AEC-Q100 qualification and –40 to 125 °C operation guarantee reliability in under-hood battery pack environments. | Use Scenario: Isolating temperature sensor readings and current sense amplifier outputs from high-voltage DC link in electric vehicle traction inverters. IC Role / Device Role / Timing Role: High-CMTI (≥100 kV/µs) isolator preserving signal integrity amid fast-switching SiC MOSFET noise. Use Value: WB SOIC-16 package provides 8.3 mm creepage for 6000 VRMS rating - satisfies ISO 26262 ASIL-D system-level isolation needs. |
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, 6000 VRMS, 100 Mbps max, no sleep mode pin, 15 ns propagation delay. | Lacks SMb-controlled low-power state; higher quiescent current (1.2 mA/side typical at 5 V). | Choose when sleep mode is unnecessary and legacy ADI footprint compatibility is required. |
| ISO6741FDWR | 4-channel, 5000 VRMS, 50 Mbps max, no fail-safe default-low option, 16 ns propagation delay. | Lower isolation rating and data rate; not AEC-Q100 qualified. | Consider only for cost-sensitive industrial automation where 6000 VRMS and automotive qualification are not mandated. |
Compared with ADUM4401BRWZ and ISO6741FDWR, SI86SM41EE-IS2R offers superior timing precision (10 ns vs. ≥15 ns), integrated sleep mode for ultra-low standby power, and full automotive qualification - making it the preferred choice for next-generation EV powertrain subsystems requiring both safety and energy efficiency.
Availability
SI86SM41EE-IS2R is available at Aetrix Electronics and suitable for battery management systems, traction inverters, onboard chargers, and isolated motor control requiring stable component supply across automotive and industrial production programs.
Supply support for SI86SM41EE-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 Si86Sxx family was designed specifically for high-reliability isolation in automotive electrification and industrial power conversion, emphasizing reinforced safety certification, low-latency timing, and robust noise immunity.
FAQ
What is the isolation voltage rating of the SI86SM41EE-IS2R and which safety standards does it meet?
The SI86SM41EE-IS2R provides 6000 VRMS reinforced isolation per UL 1577 (1 minute), and is certified to VDE 60747-17, CSA 62368-1, and CQC GB4943.1. These approvals validate its use in medical equipment, EV battery systems, and industrial inverters where double insulation is mandated. The WB SOIC-16 package achieves this rating through enhanced creepage and internal barrier design - confirmed in Tables 14 and 16 of the official datasheet.
Does the SI86SM41EE-IS2R support fail-safe operation, and how is it configured?
Yes, the SI86SM41EE-IS2R supports selectable fail-safe output behavior. As an Mxx-series part, it is ordered with default-low output logic, meaning outputs go low when VDD1 is unpowered but VDD2 remains active - verified in Table 4 of the datasheet. This behavior is fixed by the ordering option and cannot be changed in-circuit; no external configuration is required.
How does the SMb pin function in the SI86SM41EE-IS2R, and what is its impact on power consumption?
The SMb pin is an active-low sleep mode control input. When driven 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. This feature is explicitly documented for Si86SM4x variants in Section 3.4.2 and Figure 11 of the datasheet, enabling dynamic power scaling in battery-powered automotive modules.
What are the key timing specifications of the SI86SM41EE-IS2R, and how do they compare to legacy optocouplers?
The SI86SM41EE-IS2R delivers 10 ns typical propagation delay and 3.5 ns typical pulse width distortion - significantly tighter than standard optocouplers (typically >50 ns delay, >20 ns distortion). These values are measured at 5 V supply and –40 to 125 °C, and directly enable accurate dead-time control in SiC/GaN gate drivers. The RF modulation architecture eliminates startup delays and temperature-dependent drift inherent in LED-based isolation.
Is the SI86SM41EE-IS2R qualified for automotive applications, and what documentation supports this claim?
Yes, the SI86SM41EE-IS2R is AEC-Q100 qualified for Grade 0 (–40 to +125 °C), with AIAG-compliant PPAP documentation and IMDS/CAMDS listings available. This qualification is stated in the "Automotive Applications" section and "Key Features" list of the datasheet, and reflects manufacturing process controls specific to automotive-grade flow - distinct from industrial-grade variants in the same family.
SI86SM41EE-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:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- 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
SI86SM41EE-IS2R FAQ
1.How can I place an order for SI86SM41EE-IS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SM41EE-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 SI86SM41EE-IS2R reliable?
The price and inventory of SI86SM41EE-IS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SM41EE-IS2R is usually 5 days.
3.What payment methods are accepted for SI86SM41EE-IS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SM41EE-IS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SM41EE-IS2R?
SI86SM41EE-IS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SM41EE-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 SI86SM41EE-IS2R?
For technical support, including SI86SM41EE-IS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SM41EE-IS2R requirements.
6.How does Aetrix verify that SI86SM41EE-IS2R is sourced from the original manufacturer or authorized distributors?
All SI86SM41EE-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 SI86SM41EE-IS2R meets industry standards.
7.What is the process for return or replacement of SI86SM41EE-IS2R?
All SI86SM41EE-IS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SM41EE-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 SI86SM41EE-IS2R part is unused and in its original packaging.
Return procedure for SI86SM41EE-IS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SM41EE-IS2R 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
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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