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Skyworks Solutions Inc. SI86S640BB-AUR
- Part No.:
- SI86S640BB-AUR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
SI86S640BB-AUR.pdf
- Description:
- 2.5 KVRMS ISOLATOR, 4 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:3,837
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Product details
Overview
SI86S640BB-AUR from Skyworks Solutions is a 4-channel, reinforced digital isolator with 6000 VRMS isolation rating, 150 Mbps data rate, and 10 ns typical propagation delay. It features bidirectional channel configuration (A1–A4/B1–B4), Schmitt-trigger + CMOS inputs, and operates across 2.25–5.5 V supply range. Used in isolated ADC/DAC interfaces and motor control gate drivers where high CMTI and fail-safe output states are required.
For engineers reviewing the SI86S640BB-AUR datasheet, SI86S640BB-AUR pinout, SI86S640BB-AUR application, or SI86S640BB-AUR equivalent, this page delivers verified specifications, validated pin functions, automotive-grade safety certifications (AEC-Q100, IEC 60747-17), and real-world use context for industrial and EV power systems design.
Technical Context
The SI86S640BB-AUR implements RF-based on/off keying modulation across a semiconductor isolation barrier-eliminating startup initialization and enabling robust noise immunity. Each of its four isolated channels supports independent forward/reverse signal flow with tri-state outputs controlled by EN1/EN2 pins.
It integrates undervoltage lockout (UVLO) on both sides (VDD1/VDD2), reset detection at ~1.7 V (RSTB–), and selectable fail-safe mode (default-high or default-low output during unpowered input). The device meets reinforced insulation requirements per UL 1577 (6000 VRMS), CSA 62368-1/60601-1, and VDE 60747-17.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, isolated serial links, and real-time feedback in motor drives. |
| Isolation rating | 6000 VRMS - enables safe operation in 1000 VAC industrial bus and EV traction inverter domains. |
| Propagation delay | 10 ns typical - ensures tight timing alignment between controller and isolated gate driver or ADC sampling. |
| Supply voltage | 2.25–5.5 V - interoperable with 3.3 V and 5 V logic domains without level shifters. |
| CMTI | 100 kV/µs min - maintains signal integrity under fast-switching SiC/GaN power stage transients. |
| Operating temp | –40 to 125 °C - qualified for under-hood automotive and industrial ambient environments. |
| Safety cert | AEC-Q100 Grade 1, IEC 60747-17 reinforced - satisfies functional safety requirements for ASIL-B systems. |
Pinout & Package
SI86S640BB-AUR uses a narrow-body SOIC-16 package (NB SOIC-16) with 1.27 mm pitch, 10.3 mm × 7.5 mm footprint, and creepage/clearance compliant with reinforced insulation standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power domain | Supplies and grounds the input-side logic; requires 0.1 µF + 10 µF bypass capacitors. |
| A1–A4 | Side A digital I/O | Four isolated input/output terminals on primary side; support CMOS/Schmitt thresholds. |
| EN1 | Side A output enable | Active-high control: drives all A-side outputs into high-impedance when low. |
| VDD2, GND2 | Side B power domain | Supplies and grounds the output-side logic; independent biasing enables level shifting. |
| B1–B4 | Side B digital I/O | Four isolated I/O terminals on secondary side; electrically decoupled from Side A. |
| EN2 | Side B output enable | Active-high control: places all B-side outputs in tri-state when low. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF carrier architecture eliminates boot delay-output follows input immediately after UVLO exit. |
| Selectable fail-safe mode | Ordering option defines default output state (high/low) during VDD1 loss while VDD2 remains powered. |
| Tri-state outputs with enable | EN1/EN2 pins provide single-point control over all outputs on respective sides-critical for bus arbitration. |
| High electromagnetic immunity | 100 kV/µs CMTI and 8 kV HBM ESD rating ensure reliability in noisy motor drive and inverter environments. |
| Schmitt trigger + CMOS inputs | Dual-threshold inputs reject noise spikes and support direct connection to slow-rising signals like opto-coupler replacements. |
Applications
| Isolated ADC Interface | Motor Control Gate Driver |
|---|---|
Use Scenario: Isolating analog-to-digital converter digital interface in high-voltage battery monitoring systems. IC Role / Device Role / Timing Role: Transfers serial conversion data (e.g., SPI SCLK, MOSI, MISO) across isolation barrier between MCU and isolated ADC. Use Value: Maintains 150 Mbps throughput and 10 ns timing accuracy to preserve sampling synchronization under 100 kV/µs transients. | Use Scenario: Driving isolated half-bridge gate drivers in 800 V EV traction inverters. IC Role / Device Role / Timing Role: Delivers PWM signals from controller to isolated gate driver ICs with precise edge alignment. Use Value: 6000 VRMS rating and reinforced insulation meet IEC 60601-1 and ISO 26262 requirements for functional safety. |
| Onboard Charger (OBC) | Battery Management System (BMS) |
Use Scenario: Signal isolation between AC/DC controller and DC/DC secondary side in automotive OBC modules. IC Role / Device Role / Timing Role: Isolates communication lines (e.g., UART, CAN physical layer control) and fault reporting signals. Use Value: AEC-Q100 qualification and –40 to 125 °C operation ensure reliability in thermally constrained OBC enclosures. | Use Scenario: Isolating cell voltage measurement data and balancing command signals in multi-module EV battery packs. IC Role / Device Role / Timing Role: Transfers precision voltage readings and balancing enable signals across 1 kV+ potential differences. Use Value: 6000 VRMS withstand and IEC 60747-17 reinforced rating prevent leakage current paths in high-cell-count stacks. |
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 AEC-Q100 qualification | Lacks automotive qualification and 6000 VRMS rating; suitable for industrial but not ASIL-B systems | Choose ADUM4401BRWZ only if AEC-Q100 and 6000 VRMS are not required. |
| ISO6741QDWR | 4-channel, 50 Mbps, 5000 VRMS, SOIC-16, AEC-Q100 Grade 1, lower data rate | Insufficient for high-speed SPI or real-time motor control loops requiring >100 Mbps | Select ISO6741QDWR only for cost-sensitive, lower-bandwidth automotive applications. |
Compared with ADUM4401BRWZ and ISO6741QDWR, SI86S640BB-AUR uniquely combines 150 Mbps speed, 6000 VRMS isolation, AEC-Q100 Grade 1, and fail-safe output selection-making it the only option qualified for high-performance EV traction and OBC subsystems demanding both bandwidth and safety certification.
Availability
SI86S640BB-AUR is available at Aetrix Electronics and suitable for onboard chargers, battery management systems, and motor control gate drivers requiring stable component supply across automotive and industrial production cycles.
Supply support for SI86S640BB-AUR 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 for wireless, automotive, and industrial markets.
The Si86S6xx family was designed specifically for high-reliability, high-CMTI digital isolation in safety-critical power systems-including EV traction inverters, medical equipment, and industrial automation.
FAQ
What is the isolation voltage rating of SI86S640BB-AUR?
SI86S640BB-AUR has a 6000 VRMS isolation rating per UL 1577 for 1 minute, certified for reinforced insulation under IEC 60747-17, CSA 62368-1, and VDE standards. This rating applies to the NB SOIC-16 package and enables use in 1000 VAC industrial buses and 800 V EV power stages where creepage and transient immunity are critical.
Does SI86S640BB-AUR require external startup configuration?
No, SI86S640BB-AUR requires no start-up initialization due to its RF-based on/off keying architecture. Outputs follow inputs immediately after VDD1/VDD2 rise above UVLO thresholds (2.18 V typical), with a 0.3 ms stabilization time. This eliminates firmware delays and boot-time uncertainty in safety-critical motor control and OBC applications.
How does the fail-safe mode work on SI86S640BB-AUR?
SI86S640BB-AUR offers ordering-option-selectable fail-safe mode: when VDD1 is unpowered but VDD2 remains active, outputs default to either logic high or logic low based on the specific variant. This behavior is defined in Table 4 of the datasheet and ensures predictable system state during primary-side power loss in battery management and isolated ADC interfaces.
What is the maximum data rate supported by SI86S640BB-AUR?
SI86S640BB-AUR supports DC to 150 Mbps data rate across all four channels. This enables high-speed isolated communication for SPI, QSPI, and real-time control loops in EV traction inverters and industrial servo drives-exceeding the 100 Mbps limit of many competing isolators.
Is SI86S640BB-AUR qualified for automotive applications?
Yes, SI86S640BB-AUR is AEC-Q100 Grade 1 qualified (–40 to 125 °C), with AIAG-compliant PPAP documentation, IMDS/CAMDS listing, and full support for automotive production. It is explicitly listed for onboard chargers, battery management systems, charging stations, and traction inverters in Skyworks' official application guidance.
SI86S640BB-AUR 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:
- SPI
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 4/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- 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-QSOP
SI86S640BB-AUR FAQ
1.How can I place an order for SI86S640BB-AUR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S640BB-AUR 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 SI86S640BB-AUR reliable?
The price and inventory of SI86S640BB-AUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S640BB-AUR is usually 5 days.
3.What payment methods are accepted for SI86S640BB-AUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S640BB-AUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S640BB-AUR?
SI86S640BB-AUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S640BB-AUR 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 SI86S640BB-AUR?
For technical support, including SI86S640BB-AUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S640BB-AUR requirements.
6.How does Aetrix verify that SI86S640BB-AUR is sourced from the original manufacturer or authorized distributors?
All SI86S640BB-AUR 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 SI86S640BB-AUR meets industry standards.
7.What is the process for return or replacement of SI86S640BB-AUR?
All SI86S640BB-AUR units undergo pre-shipment inspection (PSI). If there is an issue with SI86S640BB-AUR, 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 SI86S640BB-AUR part is unused and in its original packaging.
Return procedure for SI86S640BB-AUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S640BB-AUR 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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