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Skyworks Solutions Inc. SI86S622EC-AS
- Part No.:
- SI86S622EC-AS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86S622EC-AS.pdf
- Description:
- 3.75 KVRMS ISOLATOR, 2 UNIDIRECT
- Quantity:
- Payment:
- Shipping:
Inventory:4,455
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Product details
Overview
SI86S622EC-AS from Skyworks Solutions is a dual-channel, high-speed digital isolator with reinforced 6000 VRMS isolation, 150 Mbps data rate, and AEC-Q100 qualification for automotive systems. It features Schmitt-trigger inputs, selectable fail-safe output (default low), and operates across 2.25–5.5 V supply rails. Used in battery management systems and traction inverters where galvanic separation and noise immunity are critical.
For engineers reviewing the SI86S622EC-AS datasheet, SI86S622EC-AS pinout, SI86S622EC-AS application, or SI86S622EC-AS equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-critical timing and safety parameters - all confirmed for the exact SI86S622EC-AS variant.
Technical Context
The SI86S622EC-AS implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust operation without optical degradation. Its dual-channel architecture supports independent side-A and side-B power domains (VDD1/GND1 and VDD2/GND2) with per-side UVLO and reset thresholds (VDDUV+ = 2.18 V, RSTB+ ≈ 1.7 V).
It integrates input deglitch filters (36 ns), precise timing (9 ns typical propagation delay, 3.5 ns pulse width distortion), and high CMTI (100 kV/µs). Fail-safe behavior is fixed at default-low output during unpowered input conditions, as defined by the "EC" ordering suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | 150 Mbps - supports high-speed serial interfaces like SPI, RS-485 transceiver control, and isolated ADC/DAC clocking without bottlenecks. |
| Propagation delay | 9 ns typical - enables tight timing budgets in motor gate drivers and real-time feedback loops. |
| Isolation rating | 6000 VRMS - meets reinforced insulation requirements per UL 1577 and IEC 60747-17 for 600 VAC mains-connected systems. |
| Supply voltage range | 2.25–5.5 V - allows direct interface with 3.3 V microcontrollers and 5 V analog subsystems without level-shifting. |
| CMTI | 100 kV/µs - ensures reliable operation in high-dV/dt environments such as power inverters and onboard chargers. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive use and industrial motor control enclosures. |
| Fail-safe mode | Default low - output pins drive low when side-A supply is absent, preventing undefined states in BMS fault detection paths. |
Pinout & Package
SI86S622EC-AS is housed in an NB SOIC-8 package (3.9 mm creepage/clearance) with 8-pin layout optimized for reinforced isolation. Pin 1 = VDD1, Pin 2 = A1, Pin 3 = A2, Pin 4 = GND1, Pin 5 = GND2, Pin 6 = B1, Pin 7 = B2, Pin 8 = VDD2. No-connect (NC) pins are absent - all pins are functional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 | Independent supply rails | Enable true galvanic separation: side-A logic can run at 3.3 V while side-B drives 5 V gate drivers or ADC references. |
| A1, A2 | Digital inputs (side A) | Accept CMOS/Schmitt-trigger signals; internal 36 ns deglitch filter suppresses EMI-induced glitches in noisy motor control environments. |
| B1, B2 | Digital outputs (side B) | 50 Ω nominal output impedance - matches controlled-impedance PCB traces for clean signal integrity up to 150 Mbps. |
| GND1, GND2 | Isolated ground references | Must be routed on separate PCB planes; no shared copper between sides to maintain 6000 VRMS withstand capability. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift of optocouplers; maintains consistent 9 ns propagation delay across –40 to +125 °C. |
| Selectable fail-safe | "EC" suffix denotes factory-configured default-low output - ensures safe shutdown state in BMS overvoltage detection circuits. |
| AEC-Q100 Grade 1 | Qualified for automotive applications including traction inverters and onboard chargers, with full PPAP documentation support. |
| Transient immunity | 100 kV/µs CMTI and 8 kV HBM ESD rating - sustains operation during load dump events and relay switching transients. |
| Low-power operation | 1.39 mA typical supply current per side at 5 V/500 kHz - reduces thermal load in densely packed power modules. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ICs from MCU host in EV battery packs with 400–800 V DC bus. IC Role / Device Role / Timing Role: Dual-channel isolator conveying ADC conversion ready signals and SPI clock/data across high-voltage barrier. Use Value: 6000 VRMS isolation and 100 kV/µs CMTI prevent false triggering during fast-switching inverter dv/dt events. |
Use Scenario: Transmitting PWM gate drive enable/disable commands from controller to isolated gate driver ICs in 3-phase motor inverters. IC Role / Device Role / Timing Role: High-speed digital isolator delivering synchronized, low-skew (≤3 ns channel-channel skew) control signals to IGBT/SiC half-bridges. Use Value: 9 ns propagation delay and 3.5 ns pulse width distortion preserve dead-time accuracy critical for shoot-through prevention. |
| Industrial PLC I/O Module | Medical Isolated Data Acquisition |
|
Use Scenario: Providing galvanic isolation between field-side 24 V digital inputs and 3.3 V ARM-based PLC processor. IC Role / Device Role / Timing Role: Dual-channel isolator handling discrete sensor status and emergency stop signals with fail-safe default-low assertion. Use Value: Default-low output ensures "safe off" state during controller power loss - meeting IEC 61508 SIL-2 functional safety requirements. |
Use Scenario: Isolating patient-connected ECG front-end analog-to-digital converters from hospital-grade USB/ethernet communication processors. IC Role / Device Role / Timing Role: Reinforced-isolation digital isolator transferring oversampled ADC data streams while maintaining 2 MOPP per IEC 60601-1. Use Value: VDE-certified 2121 Vpeak working voltage and CSA 60601-1 compliance ensure regulatory acceptance for Class II medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM121N1BRZ-RL7 | 5000 VRMS isolation, 150 Mbps, default-high fail-safe, SOIC-8 (3.9 mm creepage) | Lacks AEC-Q100 qualification; not rated for automotive under-hood ambient temperatures beyond 105 °C | Preferred for industrial PLCs where default-high logic aligns with existing firmware, but not suitable for BMS or traction inverter designs requiring Grade 1 automotive qualification. |
| ISO7721FDWR | 5000 VRMS isolation, 100 Mbps, default-low fail-safe, SOIC-16 wide-body (8.0 mm creepage) | Lower data rate limits SPI clock speed; wider SOIC-16 footprint increases PCB area vs. NB SOIC-8 | Appropriate when higher creepage (>6 mm) is mandated by end-equipment standards (e.g., IEC 61000-4-5 surge), but insufficient for 150 Mbps real-time control loops. |
Compared with ADUM121N1BRZ-RL7 and ISO7721FDWR, SI86S622EC-AS uniquely combines AEC-Q100 Grade 1 qualification, 6000 VRMS isolation in NB SOIC-8, and factory-set default-low fail-safe - making it the only option qualified for automotive battery management and traction inverter control without layout or firmware adaptation.
Availability
SI86S622EC-AS is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and medical data acquisition equipment requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for SI86S622EC-AS 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 for high-reliability applications.
The Si86S6xx family was designed specifically for automotive and industrial systems demanding reinforced isolation, high CMTI, and AEC-Q100 compliance - targeting battery electric vehicles, motor drives, and safety-critical medical instrumentation.
FAQ
What is the isolation voltage rating of SI86S622EC-AS, and which safety standards does it meet?
SI86S622EC-AS provides 6000 VRMS isolation per UL 1577 and reinforced insulation per IEC 60747-17 (2121 Vpeak). It is certified by VDE, CSA (62368-1, 60601-1), UL, and CQC. These ratings apply specifically to the NB SOIC-8 package variant and are validated for continuous operation at up to 1500 VRMS working voltage in SSO-8 configuration.
Does SI86S622EC-AS require external startup initialization or configuration?
No. SI86S622EC-AS uses RF-based modulation with no startup initialization sequence. It begins transmitting valid data within 300 µs of VDD reaching 2.18 V, with outputs held low via 100 kΩ pulldown until stabilization. The device automatically enters and exits UVLO and reset states based on per-side VDD thresholds - no firmware or external circuitry is needed.
What does the "EC" suffix in SI86S622EC-AS indicate?
The "EC" suffix specifies the factory-programmed fail-safe mode: default-low output state when side-A supply (VDD1) is unpowered. This is distinct from "EB" (default-high) and "ED" (inverting) variants. The EC configuration is hard-coded during manufacturing and cannot be changed in-circuit.
Can SI86S622EC-AS operate with different supply voltages on each side?
Yes. SI86S622EC-AS supports independent VDD1 and VDD2 supplies ranging from 2.25 V to 5.5 V. Side-A may run at 3.3 V for MCU interfacing while side-B operates at 5 V to drive gate drivers or ADC references - with full 6000 VRMS isolation maintained between domains.
What is the maximum data rate supported by SI86S622EC-AS, and what timing parameters enable it?
SI86S622EC-AS supports up to 150 Mbps. This is enabled by 9 ns typical propagation delay, ≤3 ns channel-channel skew, 3.5 ns pulse width distortion, and 2.5 ns output rise/fall times. These values are guaranteed across –40 to +125 °C and 2.25–5.5 V supply range, per Table 6 and Table 7 in the official datasheet.
SI86S622EC-AS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si86S62x
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 1/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 100kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 13.5ns, 13.5ns
- Pulse Width Distortion (Max):
- 2.5ns
- 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:
- 8-SOIC
SI86S622EC-AS FAQ
1.How can I place an order for SI86S622EC-AS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S622EC-AS 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 SI86S622EC-AS reliable?
The price and inventory of SI86S622EC-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S622EC-AS is usually 5 days.
3.What payment methods are accepted for SI86S622EC-AS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S622EC-AS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S622EC-AS?
SI86S622EC-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S622EC-AS 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 SI86S622EC-AS?
For technical support, including SI86S622EC-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S622EC-AS requirements.
6.How does Aetrix verify that SI86S622EC-AS is sourced from the original manufacturer or authorized distributors?
All SI86S622EC-AS 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 SI86S622EC-AS meets industry standards.
7.What is the process for return or replacement of SI86S622EC-AS?
All SI86S622EC-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI86S622EC-AS, 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 SI86S622EC-AS part is unused and in its original packaging.
Return procedure for SI86S622EC-AS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S622EC-AS 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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