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Skyworks Solutions Inc. SI86S640EB-IUR
- Part No.:
- SI86S640EB-IUR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
SI86S640EB-IUR.pdf
- Description:
- 2.5 KVRMS ISOLATOR, 4 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:2,232
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Product details
Overview
SI86S640EB-IUR from Skyworks Solutions is a 4-channel reinforced digital isolator with bidirectional signal isolation across an integrated semiconductor barrier. It delivers DC to 150 Mbps data rate, 10 ns typical propagation delay, and 6000 VRMS isolation rating in a WB SOIC-16 package. It operates from 2.25–5.5 V supplies and supports fail-safe default-high output mode for industrial motor control interfaces.
For engineers reviewing the SI86S640EB-IUR datasheet, SI86S640EB-IUR pinout, SI86S640EB-IUR application, or SI86S640EB-IUR equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade AEC-Q100 qualification, IEC 60747-17 reinforced insulation compliance, and real-world use cases in isolated ADC/DAC and onboard charger systems.
Technical Context
The SI86S640EB-IUR implements RF-based on/off keying modulation across its isolation barrier-eliminating startup initialization and enabling deterministic timing behavior. Its architecture includes Schmitt-trigger inputs with 0.15×VDD hysteresis and CMOS thresholds for high noise immunity, plus tri-state outputs controlled by EN1/EN2 enable pins.
It features selectable fail-safe mode (default-high per -EB suffix), 36 ns input deglitch filtering, and transient immunity of ≥100 kV/µs. The device supports independent UVLO monitoring per side (VDDUV+ = 2.10–2.25 V) and reset detection at ~1.7 V (RSTB–), ensuring robust power sequencing in 125 °C industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, isolated serial links, and QSPI data transfer without protocol translation. |
| Propagation delay | 10 ns typical - enables tight timing closure in feedback loops for motor control and power inverter gate drivers. |
| Isolation rating | 6000 VRMS - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for safety-critical 1 kV+ systems. |
| Supply voltage | 2.25–5.5 V - allows direct interfacing 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. |
| Transient immunity | ≥100 kV/µs - ensures reliable operation in noisy switch-mode power supply and motor drive environments. |
| Fail-safe mode | Default-high output - maintains safe logic state during VDD1 loss while VDD2 remains powered (per -EB ordering code). |
Pinout & Package
SI86S640EB-IUR is housed in a wide-body SOIC-16 (WB SOIC-16) package with 8.3 mm creepage/clearance, supporting 6000 VRMS isolation. Pinout follows Figure 2 (Si86S64x/L4x) in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power domain | Supplies and grounds the input-side logic; bypassed with 0.1 µF + 10 µF capacitors per side. |
| A1–A4 | Side A digital I/O | Four unidirectional input channels from controller side; accept 2.25–5.5 V logic levels with Schmitt-trigger inputs. |
| EN1 | Side A output enable | Active-high control: drives all A-side outputs into high-impedance when low, enabling bus sharing. |
| VDD2, GND2 | Side B power domain | Isolated supply and ground for output-side logic; galvanically separated from Side A. |
| B1–B4 | Side B digital I/O | Four unidirectional output channels to peripheral side; deliver 50 Ω nominal output impedance for controlled-impedance routing. |
| EN2 | Side B output enable | Active-high control: places all B-side outputs in high-Z state, supporting multi-drop isolated buses. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot-time delays and configuration sequences-output follows input immediately after UVLO exit. |
| Reinforced IEC 60747-17 rating | Validated barrier design meets reinforced insulation requirements for medical (60601-1) and industrial (62368-1) end-equipment certification. |
| 36 ns input deglitch filter | Rejects sub-36 ns noise pulses on A1–A4 inputs-critical for clean signal transmission in EMI-heavy motor control and SMPS feedback paths. |
| AEC-Q100 Grade 1 qualification | Manufactured using automotive-specific process flows with PPAP documentation support-enables use in OBCs and BMS without requalification. |
| Tri-state outputs with enable | EN1/EN2 pins allow dynamic bus contention management on both sides-essential for shared isolated communication backplanes. |
Applications
| Industrial Motor Control | Isolated ADC/DAC Interface |
|---|---|
|
Use Scenario: Gate driver signal isolation in 3-phase inverter stacks for servo drives and HVAC compressors. IC Role / Device Role / Timing Role: Transmits PWM enable and fault signals across isolation barrier with <10 ns propagation delay and <3.5 ns pulse width distortion. Use Value: Enables precise timing alignment between controller and power stage, reducing shoot-through risk and improving efficiency at 20+ kHz switching frequencies. |
Use Scenario: Isolating serial interface between microcontroller and precision isolated ADC (e.g., AD7403) in current sensing circuits. IC Role / Device Role / Timing Role: Carries SPI clock, MOSI, MISO, and CS signals across barrier with 150 Mbps capability and 36 ns input filtering. Use Value: Prevents ground-loop noise from corrupting 16-bit measurement accuracy while maintaining full data throughput without protocol overhead. |
| Onboard Charger (OBC) | Battery Management System (BMS) |
|
Use Scenario: Signal isolation between AC/DC controller and DC/DC secondary-side regulation in EV onboard chargers. IC Role / Device Role / Timing Role: Transfers voltage/current feedback, enable commands, and fault flags with fail-safe default-high (-EB) behavior during primary-side brownout. Use Value: Ensures secondary-side regulators remain enabled during transient VDD1 dips-preventing uncontrolled shutdown and enabling graceful fault recovery. |
Use Scenario: Isolating cell monitor IC (e.g., LTC6813) daisy-chain communication in high-voltage battery packs (up to 1000 V). IC Role / Device Role / Timing Role: Provides four independent isolated channels for daisy-chain clock, data-in, data-out, and chip-select signals. Use Value: Maintains signal integrity across >500 V potential differences while meeting reinforced insulation requirements for ASIL-B functional safety compliance. |
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, 100 Mbps, 5000 VRMS, SOIC-16, no deglitch filter, default-low fail-safe | Lacks 36 ns input filtering and 6000 VRMS rating; not AEC-Q100 qualified | Acceptable for non-automotive industrial use where lower isolation voltage and absence of glitch filtering are acceptable. |
| ISO6741QDWR | 4-channel, 50 Mbps, 5000 VRMS, SOIC-16, no deglitch, default-low, automotive grade | Lower data rate and isolation rating; lacks fail-safe high option and 36 ns filter | Suitable for cost-sensitive automotive body electronics where 50 Mbps suffices and 6000 VRMS is not required. |
Compared with ADUM4401BRWZ and ISO6741QDWR, SI86S640EB-IUR provides higher isolation (6000 VRMS), faster data rate (150 Mbps), integrated 36 ns input filtering, and AEC-Q100 Grade 1 qualification-making it uniquely suited for high-reliability automotive traction and industrial power applications demanding reinforced insulation and noise resilience.
Availability
SI86S640EB-IUR is available at Aetrix Electronics and suitable for industrial motor control, onboard charger systems, and battery management systems requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI86S640EB-IUR 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 designed specifically for high-reliability industrial and automotive isolation needs-emphasizing reinforced safety certification, high CMTI, and robust operation across –40 to 125 °C.
FAQ
What is the isolation voltage rating of SI86S640EB-IUR and which safety standards does it meet?
The SI86S640EB-IUR is rated for 6000 VRMS isolation per UL 1577 for 1 minute and carries reinforced insulation certification per IEC 60747-17. It also meets CSA 62368-1 and 60601-1, and CQC GB4943.1-making it suitable for medical, industrial, and automotive applications requiring reinforced barrier integrity.
Does SI86S640EB-IUR require external configuration or initialization at power-up?
No, SI86S640EB-IUR requires no start-up initialization. Its RF-based modulation architecture begins transmitting valid data immediately after exiting undervoltage lockout (UVLO), with typical start-up time of 0.3 ms. This eliminates firmware dependencies and simplifies system boot sequencing.
What does the "EB" suffix in SI86S640EB-IUR indicate?
"EB" denotes the fail-safe output configuration: default-high output state when Side A (input side) is unpowered but Side B (output side) remains powered. This ordering option ensures safe logic-high signaling during primary-side brownouts-critical for enabling downstream regulators or gate drivers.
Can SI86S640EB-IUR be used in automotive applications?
Yes, SI86S640EB-IUR is AEC-Q100 Grade 1 qualified (–40 to 125 °C), manufactured with automotive-specific process flows, and supported with AIAG-compliant PPAP documentation. It is deployed in onboard chargers, battery management systems, and traction inverters.
What is the purpose of the 36 ns input deglitch filter in SI86S640EB-IUR?
The 36 ns input deglitch filter on SI86S640EB-IUR rejects noise pulses shorter than 36 ns on A1–A4 inputs-preventing false triggering in electrically noisy environments like motor drives and switch-mode power supplies. Valid input pulses pass through with only 36 ns added delay.
SI86S640EB-IUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (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:
- 4/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- 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-QSOP
SI86S640EB-IUR FAQ
1.How can I place an order for SI86S640EB-IUR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S640EB-IUR 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 SI86S640EB-IUR reliable?
The price and inventory of SI86S640EB-IUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S640EB-IUR is usually 5 days.
3.What payment methods are accepted for SI86S640EB-IUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S640EB-IUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S640EB-IUR?
SI86S640EB-IUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S640EB-IUR 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 SI86S640EB-IUR?
For technical support, including SI86S640EB-IUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S640EB-IUR requirements.
6.How does Aetrix verify that SI86S640EB-IUR is sourced from the original manufacturer or authorized distributors?
All SI86S640EB-IUR 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 SI86S640EB-IUR meets industry standards.
7.What is the process for return or replacement of SI86S640EB-IUR?
All SI86S640EB-IUR units undergo pre-shipment inspection (PSI). If there is an issue with SI86S640EB-IUR, 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 SI86S640EB-IUR part is unused and in its original packaging.
Return procedure for SI86S640EB-IUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S640EB-IUR 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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