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Skyworks Solutions Inc. SI86S641EE-AS2R
- Part No.:
- SI86S641EE-AS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86S641EE-AS2R.pdf
- Description:
- 6.0 KVRMS ISOLATOR, 4 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:3,934
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Product details
Overview
SI86S641EE-AS2R from Skyworks Solutions is a 4-channel, reinforced digital isolator with bidirectional signal isolation across an integrated semiconductor barrier. It supports DC to 150 Mbps data rates, delivers 10 ns typical propagation delay, and provides 6000 VRMS isolation rating per UL 1577. Designed for automotive battery management systems and isolated ADC interfaces, it operates from 2.25 V to 5.5 V on both sides and features selectable fail-safe output (default low) and Schmitt-trigger CMOS inputs.
For engineers reviewing the SI86S641EE-AS2R datasheet, SI86S641EE-AS2R pinout, SI86S641EE-AS2R application, or SI86S641EE-AS2R equivalent, key selection criteria include its AEC-Q100 qualification, 6000 VRMS reinforced insulation (IEC 60747-17), 4-channel configuration with side-A and side-B independent enable pins, and compatibility with industrial motor control and onboard charger signal isolation requirements.
Technical Context
The SI86S641EE-AS2R implements RF-based on/off keying modulation across a monolithic semiconductor isolation barrier-eliminating startup initialization and enabling robust noise immunity. Its architecture includes independent undervoltage lockout (UVLO) and reset circuits per side (VDD1/VDD2), with RSTB– threshold at ~1.7 V and UVLO– at 1.98 V.
It integrates tri-state outputs controlled by EN1 (Side A) and EN2 (Side B), supports fail-safe default-low operation during unpowered input conditions, and features 36 ns input deglitch filtering-confirmed for the Si86S64x family in datasheet Section 3.4.5. The device uses HF XMTR/RCVR circuitry per channel, not optical coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, isolated UART, and real-time control loops without protocol translation. |
| Propagation delay | 10 ns typical - enables tight timing budgets in closed-loop motor control and fast ADC sampling synchronization. |
| Isolation rating | 6000 VRMS (1 min, UL 1577) - meets reinforced insulation requirements for 1000 VAC working voltage systems. |
| Supply range | 2.25 V to 5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog subsystems without level shifters. |
| Fail-safe mode | Default low output - ensures safe state during power loss in battery disconnect or fault detection circuits. |
| Input filtering | 36 ns deglitch - suppresses EFT bursts and switching noise in industrial inverters without adding external RC networks. |
| EMI immunity | 100 kV/µs transient immunity - maintains signal integrity in high-dV/dt environments like traction inverter gate drives. |
Pinout & Package
SI86S641EE-AS2R is housed in a WB SOIC-16 package (wide-body, 10.3 mm creepage/clearance), supporting 6000 VRMS isolation. Pin assignments follow Figure 2 (Si86S64x/L4x) in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply | Provides independent 2.25–5.5 V bias for input-side logic; requires local 0.1 µF + 10 µF bypassing. |
| A1–A4 | Side A digital I/O | Four unidirectional input channels from controller side; accept CMOS/Schmitt thresholds. |
| EN1 | Side A output enable | Active-high control: drives all A-side outputs into high-impedance when low-enables bus sharing. |
| VDD2, GND2 | Side B power supply | Galvanically isolated 2.25–5.5 V supply for output-side peripherals; separate ground domain. |
| B1–B4 | Side B digital I/O | Four corresponding isolated output channels; drive 4 mA loads with 50 Ω nominal output impedance. |
| EN2 | Side B output enable | Active-high control: places B-side outputs in tri-state-critical for multi-device isolated buses. |
Key Features
| Feature | Design Value |
|---|---|
| No startup initialization | RF modulation architecture eliminates boot sequence delays-output valid within 0.3 ms of VDD stabilization. |
| Reinforced IEC 60747-17 rating | Validated insulation structure enables use in medical (60601-1) and EV traction systems without additional system-level barriers. |
| AEC-Q100 Grade 1 | Qualified for –40 °C to +125 °C ambient operation-supports under-hood BMS and OBC applications. |
| Tri-state outputs with dual enables | EN1/EN2 allow independent side-level bus arbitration-essential for daisy-chained isolated sensor networks. |
| Schmitt-trigger + CMOS inputs | 250 mV hysteresis (0.15 × VDD) rejects >36 ns noise spikes-reduces need for external filtering in noisy motor drives. |
Applications
| Motor Control Feedback Isolation | Automotive Battery Management |
|---|---|
Use Scenario: Isolating encoder signals and current-sense ADC outputs in 3-phase inverter gate driver stages. IC Role / Device Role / Timing Role: Bidirectional digital isolator providing timing-critical feedback path between MCU and isolated gate drivers/ADCs. Use Value: 10 ns propagation delay enables sub-microsecond current loop response; 6000 VRMS withstand supports 800 V DC bus systems. | Use Scenario: Isolating cell voltage monitoring and pack contactor control signals in high-voltage EV battery packs. IC Role / Device Role / Timing Role: Reinforced isolator for safety-critical communication between battery monitor IC and main controller. Use Value: AEC-Q100 qualification and default-low fail-safe ensure predictable behavior during cell overvoltage faults. |
| Isolated Switch-Mode Power Supply | Industrial PLC Digital I/O |
Use Scenario: Transferring PWM and fault signals across primary-secondary boundary in 3 kW telecom rectifiers. IC Role / Device Role / Timing Role: High-speed isolator for gate drive enable/disable and overcurrent reporting in isolated DC-DC converters. Use Value: 150 Mbps capability supports advanced digital control schemes; 100 kV/µs CMTI prevents false triggering from transformer ringing. | Use Scenario: Isolating 24 V digital inputs/outputs in modular PLC backplanes exposed to factory EMI. IC Role / Device Role / Timing Role: Four-channel isolator replacing optocouplers in DIN-rail mounted I/O modules. Use Value: 36 ns input deglitching eliminates contact bounce artifacts; wide 2.25–5.5 V supply accommodates legacy 5 V and modern 3.3 V logic. |
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, 100 Mbps, 2500 VRMS, SOIC-16, no deglitch filter | Lacks 36 ns input filtering and AEC-Q100 qualification; lower isolation rating limits use in >400 V systems | Select for cost-sensitive industrial automation where 2500 VRMS suffices and EFT immunity is less critical. |
| ISO6741FDWR | 4-channel, 50 Mbps, 5000 VRMS, SOIC-16, failsafe default high only | Lower data rate restricts SPI clock speed; no default-low option conflicts with BMS fault-safety requirements | Choose when system-level reset logic requires default-high outputs and 50 Mbps bandwidth is adequate. |
Compared with ADUM2401ARWZ and ISO6741FDWR, SI86S641EE-AS2R offers higher isolation (6000 VRMS), guaranteed 36 ns deglitching, AEC-Q100 compliance, and user-selectable default-low fail-safe-making it uniquely suitable for automotive traction inverters and high-reliability industrial power supplies.
Availability
SI86S641EE-AS2R is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor control feedback paths, and isolated switch-mode power supply signaling requiring stable component supply across extended temperature and high-reliability lifecycles.
Supply support for SI86S641EE-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 Si86S6xx family was engineered specifically for high-reliability, high-speed galvanic isolation in automotive electrification and industrial power conversion-emphasizing reinforced safety certification, low propagation delay, and noise-immune RF modulation.
FAQ
What is the isolation voltage rating of the SI86S641EE-AS2R and which safety standards does it meet?
The SI86S641EE-AS2R is rated for 6000 VRMS isolation per UL 1577 (1 minute) and carries reinforced insulation certification per IEC 60747-17. It also meets CSA 62368-1 and 60601-1, VDE 60747-17, and CQC GB4943.1. These approvals are validated for the WB SOIC-16 package used in SI86S641EE-AS2R and support end-equipment certification in medical, industrial, and automotive applications.
Does the SI86S641EE-AS2R support fail-safe operation, and how is it configured?
Yes, the SI86S641EE-AS2R implements a selectable fail-safe mode that defaults to low output when the input-side supply (VDD1) is unpowered but the output-side supply (VDD2) remains active. This behavior is fixed by ordering option (the "E" in SI86S641EE-AS2R denotes default-low). No external configuration is required-the state is hardwired in silicon and verified in Table 4 of the datasheet.
What is the purpose of the EN1 and EN2 pins on the SI86S641EE-AS2R?
The EN1 pin controls tri-state operation of all Side A outputs (A1–A4), while EN2 controls Side B outputs (B1–B4). Both are active-high enables. When pulled low, they place respective side outputs in high-impedance-enabling shared bus topologies and reducing dynamic power. This functionality is documented in Table 4 and Figure 2 of the SI86S641EE-AS2R datasheet.
Is the SI86S641EE-AS2R qualified for automotive applications, and what does AEC-Q100 Grade 1 mean?
Yes, the SI86S641EE-AS2R is AEC-Q100 Grade 1 qualified, meaning it is tested and certified for operation from –40 °C to +125 °C ambient temperature-meeting requirements for engine bay and powertrain locations. This qualification covers stress tests including HTOL, TC, UHAST, and ESD, and applies specifically to the SI86S641EE-AS2R variant per Skyworks' PPAP documentation.
What packaging and creepage specifications apply to the SI86S641EE-AS2R?
The SI86S641EE-AS2R uses a WB SOIC-16 package (wide-body, 10.3 mm minimum creepage/clearance), enabling its 6000 VRMS rating. This package meets reinforced insulation requirements for 1000 VAC working voltage systems and is explicitly listed in Table 14 (Insulation Specifications) and Figure 2 of the datasheet as the mechanical implementation for SI86S641EE-AS2R.
SI86S641EE-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
SI86S641EE-AS2R FAQ
1.How can I place an order for SI86S641EE-AS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S641EE-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 SI86S641EE-AS2R reliable?
The price and inventory of SI86S641EE-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S641EE-AS2R is usually 5 days.
3.What payment methods are accepted for SI86S641EE-AS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S641EE-AS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S641EE-AS2R?
SI86S641EE-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S641EE-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 SI86S641EE-AS2R?
For technical support, including SI86S641EE-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S641EE-AS2R requirements.
6.How does Aetrix verify that SI86S641EE-AS2R is sourced from the original manufacturer or authorized distributors?
All SI86S641EE-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 SI86S641EE-AS2R meets industry standards.
7.What is the process for return or replacement of SI86S641EE-AS2R?
All SI86S641EE-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S641EE-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 SI86S641EE-AS2R part is unused and in its original packaging.
Return procedure for SI86S641EE-AS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S641EE-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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