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Skyworks Solutions Inc. SI86S660EB-IU
- Part No.:
- SI86S660EB-IU
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
SI86S660EB-IU.pdf
- Description:
- 2.5 KVRMS ISOLATOR, 6 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:4,042
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Product details
Overview
SI86S660EB-IU from Skyworks Solutions is a 6-channel, reinforced digital isolator with 6000 VRMS isolation rating, 150 Mbps data rate, and 10 ns typical propagation delay. It features dual supply operation (2.25–5.5 V), Schmitt-trigger + CMOS inputs, tri-state outputs with enable, and fail-safe default-high output mode. It is used in isolated motor control gate drivers and battery management system signal interfaces.
For engineers reviewing the SI86S660EB-IU datasheet, SI86S660EB-IU pinout, SI86S660EB-IU application, or SI86S660EB-IU equivalent, key selection criteria include reinforced IEC 60747-17 certification, AEC-Q100 qualification for automotive use, 125 °C operating temperature, and WB SOIC-16 package with 8.3 mm creepage.
Technical Context
The SI86S660EB-IU implements RF-based on/off keying across a semiconductor isolation barrier-eliminating startup initialization and enabling robust noise immunity. Its architecture supports independent undervoltage lockout (UVLO) and reset on both sides (VDD1/VDD2), with 100 kΩ weak pulldown during unpowered states and configurable fail-safe output polarity.
It delivers precise timing performance: 10 ns typical propagation delay, 3.5 ns pulse width distortion, and 100 kV/µs transient immunity. The device operates across –40 to 125 °C and supports tri-state output control via EN1/EN2 pins, with no external components required beyond 0.1 µF and 10 µF bypass capacitors per side.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed SPI, isolated ADC/DAC, and real-time motor control feedback loops. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for industrial & automotive safety-critical systems. |
| Propagation delay | 10 ns typical - enables sub-100 ns loop timing in isolated gate driver control paths and fast-response BMS monitoring. |
| Supply voltage | 2.25–5.5 V per side - allows direct interface with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications including traction inverters and onboard chargers. |
| Fail-safe mode | Default high output - ensures safe logic state during power loss on input side while output side remains powered. |
| CMTI | 100 kV/µs minimum - prevents false triggering in high-dv/dt environments like SiC/GaN power stages. |
Pinout & Package
SI86S660EB-IU is housed in a wide-body SOIC-16 (WB SOIC-16) package with 8.3 mm creepage and 10.3 mm clearance, supporting 6000 VRMS isolation. Pin numbering follows standard SOIC-16 layout (pin 1 = VDD1, pin 16 = VDD2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 | Independent supply rails | Enable galvanic separation of logic domains; each side powers its own I/O and internal circuitry. |
| GND1, GND2 | Side-specific ground references | Prevent ground-loop coupling; must be routed separately with no shared copper between isolation domains. |
| A1–A6 | Side A digital I/O | Input/output channels on primary side; support CMOS/Schmitt thresholds and 50 Ω nominal output impedance. |
| B1–B6 | Side B digital I/O | Corresponding isolated output/input channels on secondary side; fully bidirectional and independently driven. |
| EN1, EN2 | Active-high output enable | Tri-states all outputs on respective side-used for bus arbitration, power sequencing, or fault isolation. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot delay-outputs become valid within 0.3 ms of VDD stabilization. |
| Reinforced IEC 60747-17 rating | Validated for functional safety in automotive and medical systems requiring dual-insulation integrity. |
| Schmitt trigger + CMOS threshold inputs | Provides >300 mV hysteresis at 3.3 V, rejecting EMI-induced glitches in noisy motor drive or inverter environments. |
| Tri-state outputs with enable | EN1/EN2 pins allow dynamic bus sharing and prevent contention in multi-master isolated communication topologies. |
| AEC-Q100 Grade 1 qualification | Guarantees reliability over 125 °C ambient and 1000-hour HTOL testing-required for EV traction inverter gate drivers. |
Applications
| Industrial Motor Control | Automotive Battery Management |
|---|---|
Use Scenario: Isolating PWM signals between MCU and IGBT/SiC gate drivers in servo drives and variable-frequency drives. IC Role / Device Role / Timing Role: Six-channel digital isolator providing independent, low-jitter signal paths for gate enable, fault feedback, and current sense synchronization. Use Value: 10 ns propagation delay and 3.5 ns pulse width distortion preserve PWM edge fidelity, minimizing shoot-through risk in high-frequency switching. | Use Scenario: Signal isolation between cell monitor ICs and main BMS controller in 800 V EV battery packs. IC Role / Device Role / Timing Role: Reinforced isolator transmitting voltage/current sampling data and cell balancing commands across high-potential barriers. Use Value: 6000 VRMS rating and AEC-Q100 qualification ensure long-term reliability under thermal cycling and high-voltage transients. |
| Isolated Switch-Mode Power Supply | Medical Isolated Data Acquisition |
Use Scenario: Feedback path isolation in 1–3 kW AC/DC PSUs using digital controllers (e.g., UCC28950) and opto-replacement topologies. IC Role / Device Role / Timing Role: High-speed isolator carrying error amplifier output and synchronous rectifier timing signals across primary-secondary boundary. Use Value: 150 Mbps capability supports fast loop response; 2.25–5.5 V supply range simplifies biasing from auxiliary windings. | Use Scenario: Isolating analog front-end digitization paths in portable ultrasound and patient monitors meeting IEC 60601-1. IC Role / Device Role / Timing Role: Reinforced isolator separating ADC serial interface (SPI) and interrupt lines between high-voltage sensor stage and low-voltage processing unit. Use Value: CSA and VDE certification to 60601-1 ensures compliance with medical safety standards; 125 °C rating supports sterilization cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6601ARIZ-RL | Integrated isolated DC-DC converter (500 mW); 6-channel; 25 Mbps max data rate; 50 ns propagation delay. | Preferred where board space is constrained and isolated power is needed-but unsuitable for 150 Mbps timing-critical links. | Select ADUM6601ARIZ-RL only when isolated supply generation is required alongside signal isolation. |
| ISO6760FDWR | 6-channel; 50 Mbps; 1000 VRMS; 25 ns propagation delay; no AEC-Q100 or reinforced certification. | Cost-sensitive industrial automation where 6000 VRMS and automotive qualification are not mandated. | Choose ISO6760FDWR for non-safety-critical factory floor controls with lower speed and isolation requirements. |
Compared with ADUM6601ARIZ-RL and ISO6760FDWR, SI86S660EB-IU uniquely combines 150 Mbps speed, 6000 VRMS reinforced isolation, AEC-Q100 Grade 1, and 10 ns timing-making it the only option for high-performance automotive and industrial real-time control.
Availability
SI86S660EB-IU is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management systems, and isolated switch-mode power supplies requiring stable component supply and long-term lifecycle assurance.
Supply support for SI86S660EB-IU 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 and mixed-signal 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-speed data integrity, and extended temperature operation-targeting traction inverters, onboard chargers, and precision industrial automation.
FAQ
What is the isolation voltage rating and safety certification status of SI86S660EB-IU?
SI86S660EB-IU 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. These certifications are confirmed in Skyworks' official datasheet revision 206553B and apply directly to the SI86S660EB-IU ordering part number in WB SOIC-16 packaging.
Does SI86S660EB-IU support fail-safe output configuration, and how is it implemented?
Yes, SI86S660EB-IU implements selectable fail-safe output behavior via ordering option: the "E" suffix denotes default-high output during input-side power loss while output-side supply remains active. This is achieved through internal configuration stored in nonvolatile memory and verified in Table 4 of the datasheet. The SI86S660EB-IU maintains this behavior across –40 to 125 °C without external components.
What are the supply voltage requirements and bypass capacitor recommendations for SI86S660EB-IU?
SI86S660EB-IU requires 2.25–5.5 V on both VDD1 and VDD2, with separate 0.1 µF ceramic and 10 µF bulk capacitors placed adjacent to each VDD/GND pair. This dual-capacitor structure is mandatory per Section 3.2.1 of the datasheet to suppress high-frequency noise and sustain transient current demands during 150 Mbps switching. No additional series resistors are required unless system-level EMI exceeds specification limits.
How does the EN1 and EN2 pin functionality work on SI86S660EB-IU?
EN1 and EN2 are active-high enable inputs that place all six outputs on Side A or Side B into high-impedance (tri-state) mode respectively. When pulled low or left floating (with internal pull-down), outputs remain active. This feature is used for bus arbitration and fault containment-e.g., disabling gate drive signals during overcurrent events. The behavior is defined in Table 4 and Figure 9 of the SI86S660EB-IU datasheet.
Is SI86S660EB-IU qualified for automotive applications, and what does the "-IU" suffix indicate?
Yes, SI86S660EB-IU is AEC-Q100 Grade 1 qualified (–40 to 125 °C) and manufactured using automotive-specific process flows. The "-IU" suffix denotes industrial/automotive grade with enhanced screening, IMDS/CAMDS compliance, and PPAP documentation support. This distinguishes it from commercial-grade variants and confirms suitability for EV traction inverters, onboard chargers, and battery management systems.
SI86S660EB-IU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 6
- Inputs - Side 1/Side 2:
- 6/0
- 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
SI86S660EB-IU FAQ
1.How can I place an order for SI86S660EB-IU through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S660EB-IU 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 SI86S660EB-IU reliable?
The price and inventory of SI86S660EB-IU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S660EB-IU is usually 5 days.
3.What payment methods are accepted for SI86S660EB-IU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S660EB-IU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S660EB-IU?
SI86S660EB-IU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S660EB-IU 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 SI86S660EB-IU?
For technical support, including SI86S660EB-IU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S660EB-IU requirements.
6.How does Aetrix verify that SI86S660EB-IU is sourced from the original manufacturer or authorized distributors?
All SI86S660EB-IU 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 SI86S660EB-IU meets industry standards.
7.What is the process for return or replacement of SI86S660EB-IU?
All SI86S660EB-IU units undergo pre-shipment inspection (PSI). If there is an issue with SI86S660EB-IU, 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 SI86S660EB-IU part is unused and in its original packaging.
Return procedure for SI86S660EB-IU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S660EB-IU 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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