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Skyworks Solutions Inc. SI8620ET-AS
- Part No.:
- SI8620ET-AS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8620ET-AS.pdf
- Description:
- AUTOMOTIVE 10 KV SURGE, 5 KV ISO
- Quantity:
- Payment:
- Shipping:
Inventory:1,620
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Product details
Overview
SI8620ET-AS from Skyworks Solutions is a dual-channel, reinforced-isolation digital isolator in a wide-body SOIC-16 package, delivering 5 kVRMS isolation, 150 Mbps data rate, <10 ns propagation delay, and fail-safe default-high output mode for industrial and automotive power systems.
For engineers reviewing the SI8620ET-AS datasheet, SI8620ET-AS pinout, SI8620ET-AS application, or SI8620ET-AS equivalent, key selection criteria include reinforced VDE 0884-10 certification, 2.5–5.5 V dual-supply operation, channel-channel skew ≤2.5 ns, CMTI ≥100 kV/µs, and automotive-grade AEC-Q100 qualification.
Technical Context
The SI8620ET-AS implements RF-based on/off keying across a semiconductor isolation barrier-eliminating startup initialization and enabling robust noise immunity without optical degradation. Its dual independent channels operate with separate 2.5–5.5 V supplies (VDD1/VDD2), Schmitt-trigger inputs, and fail-safe logic-high default during input-side power loss.
Each channel features precise timing control: typical 8 ns propagation delay, 0.5 ns channel-channel skew, 1.5 ns pulse width distortion, and 5 ns minimum pulse width. The device supports 3.3 V and 5 V logic families and maintains stable performance from –40 °C to +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces including SPI, RS-485, and isolated ADC/DAC links. |
| Isolation rating | 5 kVRMS reinforced - certified per VDE 0884-10 and UL 1577, enabling use in mains-connected industrial and EV traction inverters. |
| Propagation delay | 5–14 ns - ensures tight timing alignment in real-time motor control and feedback loops. |
| Channel-channel skew | ≤2.5 ns - preserves phase integrity between dual signals in encoder or PWM isolation applications. |
| CMTI | ≥100 kV/µs - rejects fast transients in high-noise environments like battery management systems and onboard chargers. |
| Supply voltage | 2.5–5.5 V per side - allows interoperability with both 3.3 V microcontrollers and 5 V analog front-ends. |
| Fail-safe mode | Default-high output - guarantees known logic state during input-side brownout, critical for safety-critical gate driver enable paths. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive and industrial ambient conditions. |
Pinout & Package
SI8620ET-AS is housed in a WB SOIC-16 package with 8.3 mm creepage/clearance, supporting reinforced insulation up to 5 kVRMS. Pin assignments are validated per Skyworks datasheet revision 206328B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND1 | Side 1 ground reference | Return path for VDD1-supplied input side; must be decoupled with 0.1 µF capacitor. |
| VDD1 | Side 1 supply input | 2.5–5.5 V power for channel A inputs; enables independent logic-level translation. |
| A1, A2 | Side 1 digital I/O | Dual input/output pins for first isolated channel; Schmitt-triggered for noise immunity. |
| GND2 | Side 2 ground reference | Isolated return path for VDD2-supplied output side; galvanically separated from GND1. |
| VDD2 | Side 2 supply input | 2.5–5.5 V power for channel B outputs; supports mixed-voltage system interfacing. |
| B1, B2 | Side 2 digital I/O | Dual input/output pins for second isolated channel; fail-safe default-high when VDD1 = 0 V. |
| NC | No-connect terminal | Pins 2, 6, 8, 10, 11, 15 - internally unconnected; may be left floating or tied to GND/VDD per layout needs. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced VDE 0884-10 certification | Enables single-package isolation in safety-critical systems without external creepage barriers. |
| 100 kV/µs CMTI | Prevents data corruption during fast-switching events in SiC/GaN inverter gate drive circuits. |
| Fail-safe default-high output | Guarantees active-enable state for downstream drivers during input-side power failure. |
| Ultra-low power at 100 Mbps | 5.5 mA per channel at 5 V - reduces thermal load in densely packed power modules. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications including OBC, BMS, and traction inverter control units. |
| No start-up initialization | Delivers valid output within 40 µs of power application - eliminates firmware boot dependencies. |
Applications
| Motor Control Systems | Isolated Data Acquisition |
|---|---|
Use Scenario: Isolating PWM signals and fault feedback between MCU and IGBT/SiC gate drivers in servo drives and HVAC inverters. IC Role / Device Role / Timing Role: Dual-channel isolator providing independent, low-skew signal paths for gate enable and DESAT feedback. Use Value: 2.5 ns channel-channel skew and 100 kV/µs CMTI ensure timing fidelity and noise resilience in 100 kHz+ switching systems. | Use Scenario: Isolating SPI communication between isolated ADCs (e.g., AMC1306) and host microcontrollers in battery pack monitoring. IC Role / Device Role / Timing Role: High-speed digital isolator bridging measurement and control domains while maintaining data integrity. Use Value: 150 Mbps capability supports oversampled 24-bit ADC readouts with minimal latency overhead. |
| Onboard Chargers (OBC) | Traction Inverters |
Use Scenario: Isolating digital control signals between AC/DC and DC/DC stages in bidirectional EV chargers. IC Role / Device Role / Timing Role: Reinforced-isolation interface for communication, status reporting, and safety interlocks. Use Value: 5 kVRMS rating and VDE-reinforced certification satisfy IEC 62368-1 requirements for mains-connected equipment. | Use Scenario: Isolating gate drive signals and current sensing feedback in high-power EV traction inverters. IC Role / Device Role / Timing Role: Dual-channel isolator enabling simultaneous high-side and low-side gate driving with matched propagation. Use Value: <10 ns propagation delay and fail-safe default-high prevent shoot-through during controller reset or brownout. |
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 |
|---|---|---|---|
| ADUM2201ARWZ | 2.5 kVRMS basic isolation; 100 Mbps max; no AEC-Q100 qualification; SOIC-16WB not available. | Suitable for non-safety-critical industrial automation but not automotive or reinforced-insulation designs. | Select only if 2.5 kVRMS and non-automotive qualification are acceptable. |
| ISO7721FDWR | 5 kVRMS reinforced; 100 Mbps; 25 kV/µs CMTI; SOIC-16WB available; no AEC-Q100 Grade 1. | Meets IEC 62368-1 but lacks automotive qualification; lower CMTI limits use in high-dV/dt SiC systems. | Choose when automotive qualification is unnecessary and cost sensitivity outweighs CMTI margin. |
Compared with ADUM2201ARWZ and ISO7721FDWR, SI8620ET-AS uniquely combines 5 kVRMS reinforced isolation, 150 Mbps speed, 100 kV/µs CMTI, and AEC-Q100 Grade 1 in a single WB SOIC-16 package-making it the only option qualified for high-reliability automotive traction and charging systems requiring full safety compliance.
Availability
SI8620ET-AS is available at Aetrix Electronics and suitable for industrial automation systems, battery management systems, and onboard chargers requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for SI8620ET-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 for wireless, automotive, and industrial markets.
The Si86xx family was designed specifically for high-reliability isolation in safety-critical power conversion and control systems-emphasizing reinforced certification, ultra-low power, and robust transient immunity.
FAQ
What isolation rating does the SI8620ET-AS support, and which standards does it meet?
The SI8620ET-AS supports 5 kVRMS reinforced isolation and is certified to UL 1577 (5000 VRMS, 1 min), VDE 0884-10 (reinforced), IEC 62368-1, and CSA standards. It meets creepage and clearance requirements for reinforced insulation in industrial and automotive end-equipment, including onboard chargers and traction inverters.
Does the SI8620ET-AS require external startup configuration or initialization code?
No, the SI8620ET-AS requires no startup initialization. It delivers valid output within 40 µs of power application and operates immediately upon VDD1/VDD2 reaching UVLO thresholds. This eliminates firmware dependencies and simplifies system boot sequences in safety-critical applications using SI8620ET-AS.
What is the default output behavior of the SI8620ET-AS during input-side power loss?
The SI8620ET-AS features a selectable fail-safe mode; the "ET" suffix denotes default-high output. When VDD1 is unpowered and VDD2 remains active, both B1 and B2 outputs default to logic high-ensuring predictable gate driver enable states in SI8620ET-AS-based power systems.
Can the SI8620ET-AS operate with different supply voltages on each side?
Yes, SI8620ET-AS supports independent 2.5–5.5 V supplies on VDD1 and VDD2. This enables level-shifting between 3.3 V microcontrollers and 5 V analog subsystems without external translators-maintaining signal integrity and timing accuracy across both sides of the isolation barrier in SI8620ET-AS implementations.
Is the SI8620ET-AS qualified for automotive applications, and what evidence supports this?
Yes, SI8620ET-AS is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C) and built using automotive-specific manufacturing flows. It includes AIAG-compliant PPAP documentation and IMDS/CAMDS listings-verifying its suitability for onboard chargers, battery management systems, and traction inverters per SI8620ET-AS product specifications.
SI8620ET-AS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 2/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 60kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 13ns, 13ns
- Pulse Width Distortion (Max):
- 4.5ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI8620ET-AS FAQ
1.How can I place an order for SI8620ET-AS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8620ET-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 SI8620ET-AS reliable?
The price and inventory of SI8620ET-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8620ET-AS is usually 5 days.
3.What payment methods are accepted for SI8620ET-AS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8620ET-AS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8620ET-AS?
SI8620ET-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8620ET-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 SI8620ET-AS?
For technical support, including SI8620ET-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8620ET-AS requirements.
6.How does Aetrix verify that SI8620ET-AS is sourced from the original manufacturer or authorized distributors?
All SI8620ET-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 SI8620ET-AS meets industry standards.
7.What is the process for return or replacement of SI8620ET-AS?
All SI8620ET-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI8620ET-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 SI8620ET-AS part is unused and in its original packaging.
Return procedure for SI8620ET-AS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8620ET-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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