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Skyworks Solutions Inc. SI8620BT-AS2
- Part No.:
- SI8620BT-AS2
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8620BT-AS2.pdf
- Description:
- AUTOMOTIVE LOW-POWER SINGLE AND
- Quantity:
- Payment:
- Shipping:
Inventory:1,969
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Product details
Overview
SI8620BT-AS2 from Skyworks Solutions is a dual-channel, reinforced-isolation digital isolator in wide-body SOIC-16 package, supporting up to 150 Mbps data rate, <10 ns propagation delay, and 5 kVRMS isolation rating. It features Schmitt-trigger inputs, selectable fail-safe output (default low), and operates from 2.5–5.5 V across –40 to +125 °C for use in battery management systems and traction inverters.
For engineers reviewing the SI8620BT-AS2 datasheet, SI8620BT-AS2 pinout, SI8620BT-AS2 application, or SI8620BT-AS2 equivalent, key selection criteria include its reinforced VDE 0884-10 certification, 100 kV/µs CMTI (T-grade), automotive AEC-Q100 qualification, and dual-channel bidirectional signal isolation with independent side supplies.
Technical Context
The SI8620BT-AS2 implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture delivers precise timing with ≤0.5 ns channel-channel skew and ≤2 ns propagation delay skew.
It supports independent 2.5–5.5 V supplies on both sides, features undervoltage lockout (UVLO) per side with 70 mV hysteresis, and integrates 50 Ω output impedance drivers compatible with controlled-impedance PCB routing for high-speed signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces like SPI, RS-485, and CAN FD without timing bottlenecks. |
| Propagation delay | 5.0–14 ns - ensures sub-15 ns latency critical for real-time motor control loop timing. |
| Isolation rating | 5 kVRMS reinforced - certified to VDE 0884-10 and UL 1577, enabling direct interface with 690 VAC industrial bus systems. |
| CMTI | 100 kV/µs - suppresses common-mode noise in high-dv/dt environments such as IGBT gate drivers and inverters. |
| Supply voltage | 2.5–5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Operating temperature | –40 to +125 °C - meets automotive under-hood and industrial ambient requirements without derating. |
| Fail-safe mode | Default low output - ensures safe shutdown state during VDD1 loss in battery monitoring applications. |
Pinout & Package
SI8620BT-AS2 uses a WB SOIC-16 package (7.5 mm creepage/clearance) with reinforced insulation. Pin functions are validated per Skyworks datasheet Rev. 206328B, Table 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND1 (Pins 1, 7) | Side 1 ground reference | Provides low-impedance return path for input-side logic; must be decoupled with 0.1 µF capacitor near Pin 3 (VDD1). |
| VDD1 (Pin 3) | Side 1 power supply | Supplies isolated input-side circuitry; accepts 2.5–5.5 V; UVLO threshold at 2.24 V (typ). |
| A1 (Pin 4), A2 (Pin 5) | Side 1 digital I/O channels | Bidirectional data paths with Schmitt-trigger inputs; tolerate 0.8 V/2.0 V logic thresholds for noise margin. |
| GND2 (Pins 9, 16) | Side 2 ground reference | Independent return for output-side circuitry; galvanically isolated from GND1; requires separate 0.1 µF bypass at Pin 14. |
| VDD2 (Pin 14) | Side 2 power supply | Supplies isolated output-side logic; identical UVLO behavior to VDD1; enables split-domain power architecture. |
| B1 (Pin 13), B2 (Pin 12) | Side 2 digital I/O channels | Correspond to A1/A2 respectively; default-low fail-safe ensures B1/B2 drive low when VDD1 is unpowered. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced VDE 0884-10 isolation | Validated per Clause 7.3 for 5 kVRMS working voltage - eliminates need for external creepage extenders in medical and EV charging designs. |
| 100 kV/µs CMTI (T-grade) | Guaranteed minimum immunity to fast transients - prevents data corruption in 1200 V SiC inverter switching nodes. |
| AEC-Q100 Grade 1 qualification | Qualified for automotive applications including onboard chargers and battery management - supports PPAP documentation and IMDS compliance. |
| Ultra-low power at 100 Mbps | 5.5 mA per channel @ 5 V - reduces thermal load in densely packed power modules versus optocoupler alternatives. |
| No start-up initialization | Outputs follow inputs within 40 µs of VDD stabilization - simplifies firmware boot sequences and eliminates configuration registers. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADCs and MCU communication in 800 V EV battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator transmitting sampled analog data and command signals across high-voltage barriers with <10 ns timing skew. Use Value: Enables accurate SOC estimation via synchronized sampling while meeting IEC 62619 reinforced insulation requirements. |
Use Scenario: Transmitting PWM gate signals from controller to SiC half-bridge drivers in electric vehicle traction inverters. IC Role / Device Role / Timing Role: High-CMTI isolator delivering matched propagation delays (<2 ns skew) to ensure precise dead-time control. Use Value: Prevents shoot-through failures by maintaining nanosecond-level timing integrity under 100 kV/µs dv/dt stress. |
| Industrial PLC I/O Module | Medical Isolated Data Acquisition |
|
Use Scenario: Digitally isolating fieldbus interfaces (RS-485, CAN) and digital I/O in factory automation controllers. IC Role / Device Role / Timing Role: Dual-channel isolator handling bidirectional serial data and discrete status signals with fail-safe default-low outputs. Use Value: Ensures safe deactivation of actuators during power loss per IEC 61000-4-5 surge immunity requirements. |
Use Scenario: Isolating patient-connected ECG/EEG front-end ADCs from host processing unit in diagnostic equipment. IC Role / Device Role / Timing Role: Reinforced-isolation barrier meeting IEC 60601-1 2× MOPP requirements for patient safety. Use Value: Eliminates risk of leakage current exceeding 10 µA while supporting 150 Mbps data throughput for high-resolution waveforms. |
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 |
|---|---|---|---|
| ADUM220N0BRZ | 2.5 kVRMS basic isolation; 100 Mbps max; 13 ns propagation delay; SOIC-8 package. | Lacks reinforced certification and automotive qualification; unsuitable for >400 VAC systems or EV drivetrain use. | Select only for cost-sensitive industrial controls where 2.5 kVRMS and non-automotive qualification are acceptable. |
| ISO7721FDWR | 5 kVRMS reinforced; 100 Mbps; 11 ns propagation delay; SOIC-8; no AEC-Q100. | Meets IEC 62368-1 but not VDE 0884-10; lower CMTI (85 kV/µs); no automotive flow validation. | Prefer for consumer/industrial power supplies needing reinforced isolation but not automotive-grade reliability. |
Compared with ADUM220N0BRZ and ISO7721FDWR, SI8620BT-AS2 uniquely combines VDE-reinforced 5 kVRMS, 100 kV/µs CMTI, AEC-Q100 Grade 1, and dual-channel SOIC-16 packaging - making it the only option qualified for high-voltage automotive traction systems requiring full regulatory alignment.
Availability
SI8620BT-AS2 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, industrial PLCs, and medical data acquisition requiring stable component supply and long-term lifecycle support.
Supply support for SI8620BT-AS2 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.
The Si86xx family was designed specifically for high-reliability isolation in automotive electrification and industrial power conversion, emphasizing reinforced safety certification, ultra-low power, and RF-based noise immunity over legacy optocouplers.
FAQ
What is the isolation rating and safety certification of SI8620BT-AS2?
SI8620BT-AS2 provides 5 kVRMS reinforced isolation, certified to UL 1577 (5000 VRMS/1 min), VDE 0884-10 (reinforced), IEC 62368-1, and IEC 60601-1. These certifications validate its suitability for medical and high-voltage industrial applications where double protection is mandated.
Does SI8620BT-AS2 require external configuration or initialization at power-up?
No, SI8620BT-AS2 requires no configuration or initialization. Outputs begin following inputs within 40 µs after VDD1 and VDD2 exceed their UVLO thresholds. This zero-config operation simplifies firmware design and eliminates boot-time dependencies on the SI8620BT-AS2.
What is the fail-safe behavior of SI8620BT-AS2 during input-side power loss?
SI8620BT-AS2 is ordered with default-low fail-safe mode (denoted by "T" in the part number). When VDD1 is unpowered but VDD2 remains active, outputs B1 and B2 drive logic low - a critical safety feature for disabling gate drivers or shutting down sensors in SI8620BT-AS2-based BMS designs.
How does SI8620BT-AS2 achieve high common-mode transient immunity?
SI8620BT-AS2 achieves 100 kV/µs CMTI through its RF-based modulation architecture and optimized internal layout. Unlike pulse-width or edge-detection isolators, its on/off keying scheme inherently rejects fast dv/dt noise, making SI8620BT-AS2 ideal for SiC/GaN inverter gate drive isolation.
Is SI8620BT-AS2 qualified for automotive applications?
Yes, SI8620BT-AS2 is AEC-Q100 Grade 1 qualified (–40 to +125 °C), manufactured using automotive-specific process flows, and supported with AIAG-compliant PPAP documentation and IMDS/CAMDS listings - confirming its readiness for use in onboard chargers, battery management, and traction inverters.
SI8620BT-AS2 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
SI8620BT-AS2 FAQ
1.How can I place an order for SI8620BT-AS2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8620BT-AS2 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 SI8620BT-AS2 reliable?
The price and inventory of SI8620BT-AS2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8620BT-AS2 is usually 5 days.
3.What payment methods are accepted for SI8620BT-AS2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8620BT-AS2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8620BT-AS2?
SI8620BT-AS2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8620BT-AS2 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 SI8620BT-AS2?
For technical support, including SI8620BT-AS2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8620BT-AS2 requirements.
6.How does Aetrix verify that SI8620BT-AS2 is sourced from the original manufacturer or authorized distributors?
All SI8620BT-AS2 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 SI8620BT-AS2 meets industry standards.
7.What is the process for return or replacement of SI8620BT-AS2?
All SI8620BT-AS2 units undergo pre-shipment inspection (PSI). If there is an issue with SI8620BT-AS2, 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 SI8620BT-AS2 part is unused and in its original packaging.
Return procedure for SI8620BT-AS2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8620BT-AS2 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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