My Inquiry
My Account
Skyworks Solutions Inc. SI86S663EB-IUR
- Part No.:
- SI86S663EB-IUR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
SI86S663EB-IUR.pdf
- Description:
- 2.5 KVRMS ISOLATOR, 6 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:2,925
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI86S663EB-IUR from Skyworks Solutions is a 6-channel, reinforced digital isolator with bidirectional signal isolation across a semiconductor barrier. It supports DC to 150 Mbps data rates, delivers 10 ns typical propagation delay, and provides 6000 VRMS isolation rating in a WB SOIC-16 package. It operates from 2.25–5.5 V supplies and is AEC-Q100 qualified for automotive battery management systems.
For engineers reviewing the SI86S663EB-IUR datasheet, SI86S663EB-IUR pinout, SI86S663EB-IUR application, or SI86S663EB-IUR equivalent, this device is selected for high-noise industrial motor control, isolated ADC/DAC interfaces, and onboard charger communication where precise timing, fail-safe output control, and reinforced insulation per IEC 60747-17 are required.
Technical Context
The SI86S663EB-IUR implements RF-based on/off keying modulation across a monolithic semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity (100 kV/µs CMTI). Its architecture supports independent side-A and side-B undervoltage lockout (UVLO) with 2.10–2.25 V thresholds and reset behavior triggered below ~1.7 V.
All six channels are unidirectional (three A→B, three B→A), with tri-state outputs controlled by EN1 and EN2 enable pins. The device includes Schmitt-trigger + CMOS threshold inputs, selectable fail-safe mode (default high/low), and operates across –40 to 125 °C ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including isolated SPI and CAN FD physical layer signaling. |
| Propagation delay | 10 ns typical - enables tight timing budgets in real-time motor control and power converter feedback loops. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements for 1000 VAC working voltage systems per UL 1577 and IEC 60747-17. |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains without level shifters. |
| Fail-safe mode | Selectable default output (high or low) during unpowered input - ensures deterministic state in BMS fault conditions. |
| Transient immunity | ≥100 kV/µs CMTI - maintains signal integrity in high-dV/dt environments like traction inverters and SMPS gate drivers. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive and industrial ambient environments. |
Pinout & Package
SI86S663EB-IUR is housed in a wide-body SOIC-16 (WB SOIC-16) package with 8.3 mm creepage/clearance, supporting 6000 VRMS reinforced isolation. Pinout follows Figure 4 of the datasheet for Si86S66x devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A supply pair | Power and ground for primary-side I/O (A1–A6, EN1); bypass requires 0.1 µF + 10 µF capacitors. |
| A1–A6 | Side A digital I/O | Three forward (A→B) and three reverse (B→A) unidirectional channels; CMOS/Schmitt inputs. |
| EN1, EN2 | Active-high enable | Tri-states all outputs on respective side; used for synchronized channel disable in safety-critical sequences. |
| VDD2, GND2 | Side B supply pair | Power and ground for secondary-side I/O (B1–B6, EN2); independent biasing enables dual-domain operation. |
| B1–B6 | Side B digital I/O | Corresponding isolated outputs/inputs mirroring A1–A6; 50 Ω nominal output impedance for controlled-impedance routing. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot delay - output valid within 0.3 ms of VDD stabilization, critical for fast-restart power systems. |
| Reinforced IEC 60747-17 rating | Validated barrier design supports functional safety compliance (e.g., ISO 26262 ASIL-B) in automotive BMS and traction inverters. |
| Tri-state outputs with enable | EN1/EN2 allow single-pin control of all six channels - simplifies system-level power sequencing and fault containment. |
| Schmitt trigger + CMOS thresholds | Input hysteresis ≥0.15×VDD ensures reliable operation in noisy industrial environments with >100 mV noise margin. |
| Fail-safe output selection | Ordering option defines default output state (high/low) when side-A supply is lost - prevents undefined states in battery disconnect events. |
Applications
| Industrial Motor Control | Automotive Battery Management |
|---|---|
|
Use Scenario: Isolating gate driver signals and current-sense feedback in 3-phase inverter stacks. IC Role / Device Role / Timing Role: Bidirectional isolation of PWM commands (A→B) and fault/status signals (B→A) with sub-10 ns timing consistency. Use Value: Enables safe operation at 1000 VDC bus voltages while maintaining <3.5 ns pulse width distortion for precise dead-time control. |
Use Scenario: Communication between MCU and isolated cell monitoring ICs in high-voltage battery packs. IC Role / Device Role / Timing Role: Unidirectional isolation of UART/SPI data lines between 3.3 V MCU domain and 5 V analog front-end domain. Use Value: Guarantees 6000 VRMS reinforced insulation and AEC-Q100 qualification for ASIL-C compliant BMS architectures. |
| Isolated Switch Mode Supply | Medical Isolated ADC Interface |
|
Use Scenario: Feedback loop isolation in 1–3 kW LLC resonant converters with 800 V input. IC Role / Device Role / Timing Role: High-CMTI isolation of error amplifier output and synchronous rectifier control signals across primary-secondary boundary. Use Value: Maintains regulation stability under 100 kV/µs transients generated by fast-switching GaN FETs. |
Use Scenario: Isolating precision 24-bit sigma-delta ADC outputs in patient-connected ECG/defibrillator modules. IC Role / Device Role / Timing Role: Low-jitter, low-noise isolation of serial data streams from isolated ADC to host processor. Use Value: Delivers 150 Mbps throughput and 10 ns propagation delay to preserve dynamic range and SNR in medical-grade acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6603ARIZ-RL | 6-channel, 50 Mbps max, integrated isolated DC-DC converter (3.3 V out), 3750 VRMS isolation. | Preferred where auxiliary isolated power is needed; unsuitable for 6000 VRMS or >100 Mbps systems. | Choose ADUM6603ARIZ-RL only if board space constraints require integrated power and data isolation. |
| ISO6763FRDWR | 6-channel, 50 Mbps max, 5000 VRMS, no fail-safe option, lower CMTI (85 kV/µs). | Acceptable for non-automotive industrial use with relaxed safety margins and timing requirements. | Choose ISO6763FRDWR only for cost-sensitive designs where 150 Mbps and reinforced 6000 VRMS are not required. |
Compared with ADUM6603ARIZ-RL and ISO6763FRDWR, SI86S663EB-IUR uniquely combines 150 Mbps speed, 6000 VRMS reinforced isolation, AEC-Q100 qualification, and configurable fail-safe output-making it the only suitable option for high-voltage automotive and industrial real-time control where timing, safety, and noise immunity are co-constrained.
Availability
SI86S663EB-IUR is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management systems, and isolated switch mode supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SI86S663EB-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 provider of analog semiconductors specializing in RF, timing, and isolation technologies for high-reliability applications.
The Si86S6xx family was designed specifically for automotive and industrial systems demanding reinforced isolation, high CMTI, and AEC-Q100 qualification - targeting battery management, traction inverters, and isolated power conversion.
FAQ
What is the isolation voltage rating and certification status of the SI86S663EB-IUR?
The SI86S663EB-IUR 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, and CQC GB4943.1 standards. These certifications are validated for the WB SOIC-16 package variant and apply directly to the SI86S663EB-IUR ordering code.
Does the SI86S663EB-IUR support bidirectional data flow on individual channels?
No - the SI86S663EB-IUR has six unidirectional channels: three configured A→B (forward) and three B→A (reverse), as defined in the Si86S66x pinout. Direction is fixed per channel; for true bidirectional channel reuse, consider the Si86SQ44 QSPI isolator instead. The SI86S663EB-IUR does not implement direction-control logic.
What fail-safe output behavior does the SI86S663EB-IUR exhibit during loss of VDD1?
The SI86S663EB-IUR offers factory-selectable fail-safe mode: either default-high or default-low output on side B when VDD1 is unpowered but VDD2 remains active. This behavior is determined by the ordering option suffix (e.g., "EB" denotes default-low). The SI86S663EB-IUR specifically implements the default-low configuration per its part number.
Can the SI86S663EB-IUR be used in systems requiring AEC-Q100 Grade 0 qualification?
Yes - the SI86S663EB-IUR is AEC-Q100 qualified for Grade 1 (–40 to +125 °C), which covers most automotive under-hood and battery-pack applications. Grade 0 (–40 to +150 °C) is not supported; for that requirement, alternate Skyworks variants such as the Si86S663ED-IUR (Grade 0) would be required - the SI86S663EB-IUR is not rated beyond 125 °C junction temperature.
What are the recommended bypass capacitors and layout practices for the SI86S663EB-IUR?
Skyworks specifies 0.1 µF ceramic + 10 µF bulk capacitors placed adjacent to each VDD/GND pair (VDD1/GND1 and VDD2/GND2). Trace lengths must be minimized; 50 Ω series resistors are recommended on noisy I/O lines. Creepage/clearance must meet ≥8.3 mm for WB SOIC-16 to sustain 6000 VRMS - verified in SI86S663EB-IUR's certified package construction.
SI86S663EB-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:
- 6
- Inputs - Side 1/Side 2:
- 3/3
- 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
SI86S663EB-IUR FAQ
1.How can I place an order for SI86S663EB-IUR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S663EB-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 SI86S663EB-IUR reliable?
The price and inventory of SI86S663EB-IUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S663EB-IUR is usually 5 days.
3.What payment methods are accepted for SI86S663EB-IUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S663EB-IUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S663EB-IUR?
SI86S663EB-IUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S663EB-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 SI86S663EB-IUR?
For technical support, including SI86S663EB-IUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S663EB-IUR requirements.
6.How does Aetrix verify that SI86S663EB-IUR is sourced from the original manufacturer or authorized distributors?
All SI86S663EB-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 SI86S663EB-IUR meets industry standards.
7.What is the process for return or replacement of SI86S663EB-IUR?
All SI86S663EB-IUR units undergo pre-shipment inspection (PSI). If there is an issue with SI86S663EB-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 SI86S663EB-IUR part is unused and in its original packaging.
Return procedure for SI86S663EB-IUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S663EB-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
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
