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Skyworks Solutions Inc. SI8622BT-AS2R
- Part No.:
- SI8622BT-AS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8622BT-AS2R.pdf
- Description:
- AUTOMOTIVE LOW-POWER SINGLE AND
- Quantity:
- Payment:
- Shipping:
Inventory:1,089
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Product details
Overview
SI8622BT-AS2R from Skyworks Solutions is a dual-channel, reinforced-isolation digital isolator in WB SOIC-16 package, delivering 150 Mbps data rate, <10 ns propagation delay, and 5 kVRMS isolation rating. It features selectable fail-safe output (default high), operates from 2.5–5.5 V per side, and supports industrial and automotive systems requiring robust noise immunity and long-term reliability.
For engineers reviewing the SI8622BT-AS2R datasheet, SI8622BT-AS2R pinout, SI8622BT-AS2R application, or SI8622BT-AS2R equivalent, this page provides verified electrical specs, validated pin functions, real-world use cases in battery management and motor control, and confirmed alternative parts with documented functional differences.
Technical Context
The SI8622BT-AS2R implements RF-based on/off keying across a semiconductor isolation barrier-no startup initialization required. Its dual-channel architecture supports independent 2.5–5.5 V supplies on each side, with Schmitt-trigger inputs and undervoltage lockout (UVLO) on both VDD1 and VDD2.
It delivers precise timing: 0.5 ns typical channel-channel skew, 2 ns propagation delay skew, and 5 ns minimum pulse width. Reinforced VDE 0884-10 certification (up to 5 kVRMS) and 10 kV surge capability are confirmed for the "T" variant, matching the "BT" suffix in SI8622BT-AS2R.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces like SPI, RS-485, and isolated ADC/DAC links. |
| Propagation delay | 5.0–14 ns - enables tight timing budgets in real-time motor control and power converter feedback loops. |
| Isolation rating | 5000 VRMS - meets reinforced insulation requirements for safety-critical industrial and EV traction inverters. |
| Supply voltage | 2.5–5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog subsystems without level shifters. |
| Fail-safe mode | Default high output - ensures defined logic state during VDD1 loss, critical for safe shutdown in BMS and OBC applications. |
| CMTI | ≥60 kV/µs - maintains signal integrity in high-dv/dt environments such as IGBT gate drivers and SiC-based inverters. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive and industrial ambient conditions. |
Pinout & Package
SI8622BT-AS2R uses a wide-body SOIC-16 (WB SOIC-16) package with 8.0 mm creepage/clearance, supporting reinforced insulation up to 5 kVRMS. Pin functions are validated per Skyworks datasheet revision 206328B (Sept. 2023).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND1 (Pins 1, 7) | Side 1 ground reference | Return path for VDD1-supplied input side; must be decoupled with 0.1 µF capacitor near Pin 3. |
| VDD1 (Pin 3) | Side 1 power supply | Supplies input-side logic and RF transmitter; range 2.5–5.5 V; UVLO threshold 2.24 V (typ). |
| A1 (Pin 4), A2 (Pin 5) | Side 1 digital I/O | Two independent input channels; Schmitt-triggered for >0.44 V hysteresis and high noise margin. |
| GND2 (Pins 9, 16) | Side 2 ground reference | Isolated return for VDD2-supplied output side; requires separate 0.1 µF bypass at Pin 14. |
| VDD2 (Pin 14) | Side 2 power supply | Supplies output-side RF receiver and driver; independent of VDD1; same UVLO behavior. |
| B1 (Pin 13), B2 (Pin 12) | Side 2 digital I/O | Two isolated output channels; default-high fail-safe mode confirmed by "T" suffix and ordering guide. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates startup initialization and optical degradation; enables immediate data transmission after power-on. |
| Reinforced VDE 0884-10 certification | Validated for 5 kVRMS working voltage and 10 kV surge, enabling single-component isolation in Class I medical and EV systems. |
| Selectably fail-safe outputs | "T" variant guarantees default-high state when VDD1 is unpowered-prevents undefined gate drive or false fault signals. |
| Ultra-low power at 100 Mbps | 7.6 mA (VDD1) / 8.2 mA (VDD2) at 5 V - reduces thermal load in densely packed power modules. |
| 60 kV/µs CMTI (min) | Ensures reliable operation in SiC/GaN inverter switching nodes where common-mode transients exceed 50 kV/µs. |
Applications
| Battery Management Systems (BMS) | Industrial Motor Drives |
|---|---|
Use Scenario: Isolating cell voltage monitoring and pack-level communication between high-voltage battery stacks (up to 1000 V) and low-voltage MCU domains. IC Role / Device Role / Timing Role: Dual-channel isolator providing galvanic separation for analog front-end ADC interface and digital daisy-chain communication (e.g., ISO-TP or custom UART). Use Value: 5 kVRMS reinforced rating eliminates need for external creepage extenders; 0.5 ns channel skew preserves sampling phase alignment across multi-cell measurements. | Use Scenario: Isolating PWM signals from controller to IGBT/SiC gate drivers in 3-phase inverters for HVAC compressors and servo drives. IC Role / Device Role / Timing Role: High-speed, low-skew isolator transmitting complementary PWM pairs with matched propagation delay to prevent shoot-through. Use Value: 2 ns propagation delay skew ensures <10 ns timing mismatch between high-side and low-side gate signals-critical for >20 kHz switching frequencies. |
| Onboard Chargers (OBC) | Traction Inverters |
Use Scenario: Signal isolation between AC/DC PFC controller and DC/DC LLC controller in bi-directional EV chargers operating at 3.3–5 kW. IC Role / Device Role / Timing Role: Dual-channel isolator carrying error amplifier feedback and enable signals across primary-secondary boundary. Use Value: Default-high fail-safe mode forces disable state during primary-side brownout-preventing uncontrolled DC/DC burst mode operation. | Use Scenario: Isolating current-sense amplifier outputs and MCU command signals in 150 kW+ electric vehicle traction inverters. IC Role / Device Role / Timing Role: Robust isolator handling simultaneous analog sensing and digital control paths under 10 kV surge events. Use Value: 10 kV surge capability and 60 kV/µs CMTI meet ISO 26262 ASIL-D EMC requirements without additional filtering. |
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-RL7 | 2.5–5.5 V supply; 150 Mbps; 3.75 kVRMS basic isolation; no reinforced certification; default-low fail-safe. | Lacks VDE-reinforced rating and 5 kVRMS withstand; unsuitable for automotive traction or medical isolation barriers. | Select only for cost-sensitive industrial PLC I/O where reinforced insulation is not mandated. |
| ISO7721DWR | 2.25–5.5 V supply; 100 Mbps; 5 kVRMS reinforced; 3.75 kVRMS transient; default-high; SOIC-8 package (single-channel). | Single-channel; lower data rate; smaller creepage (3.7 mm); not drop-in compatible due to pin count and channel count mismatch. | Use only when board space is constrained and dual-channel functionality can be implemented with two units. |
Compared with ADUM220N0BRZ-RL7 and ISO7721DWR, SI8622BT-AS2R uniquely combines dual-channel 150 Mbps operation, VDE-reinforced 5 kVRMS rating, and guaranteed default-high fail-safe behavior in a single WB SOIC-16 package-making it the only option qualified for ASIL-B automotive powertrain subsystems without derating.
Availability
SI8622BT-AS2R is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply, long-lifecycle support, and automotive-grade traceability.
Supply support for SI8622BT-AS2R 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 wireless, automotive, and industrial markets.
The Si86xx family was designed specifically for high-reliability signal isolation in safety-critical power conversion and automotive electrification systems-emphasizing low power, precise timing, and certified reinforced insulation.
FAQ
What is the isolation rating and certification status of SI8622BT-AS2R?
SI8622BT-AS2R is rated for 5000 VRMS reinforced isolation and certified to VDE 0884-10 (reinforced), UL 1577, CSA IEC 62368-1, and CQC GB4943.1. The "T" in the part number explicitly denotes VDE-reinforced qualification per Skyworks' ordering guide, confirming suitability for medical and automotive high-voltage barriers.
Does SI8622BT-AS2R support fail-safe operation, and what is its default state?
Yes, SI8622BT-AS2R supports selectable fail-safe operation, and the "T" suffix confirms default-high output behavior when VDD1 is unpowered. This is implemented via internal pull-ups on both A1 and A2 inputs, ensuring defined logic-high states on B1 and B2 during input-side power loss-critical for safe system shutdown.
What package type and pin count does SI8622BT-AS2R use?
SI8622BT-AS2R uses a wide-body SOIC-16 (WB SOIC-16) package with 16 pins and 8.0 mm creepage/clearance. This package is explicitly listed in Tables 1 and 4 of the Skyworks datasheet 206328B for Si8622 devices, supporting reinforced 5 kVRMS isolation without external spacing enhancements.
What are the supply voltage requirements for SI8622BT-AS2R?
SI8622BT-AS2R requires independent 2.5–5.5 V supplies on both sides: VDD1 powers the input side (A1/A2), and VDD2 powers the output side (B1/B2). Each supply has dedicated UVLO (2.24 V typ) and must be bypassed with a 0.1 µF capacitor placed adjacent to its respective VDD and GND pins.
How does SI8622BT-AS2R achieve high noise immunity in electric vehicle systems?
SI8622BT-AS2R achieves ≥60 kV/µs common-mode transient immunity (CMTI) through its RF modulation architecture and optimized semiconductor isolation barrier. This performance is validated per Figure 13 in the datasheet and ensures reliable operation in high-dv/dt environments such as SiC-based traction inverters, where fast-switching nodes generate severe common-mode noise.
SI8622BT-AS2R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 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
SI8622BT-AS2R FAQ
1.How can I place an order for SI8622BT-AS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8622BT-AS2R 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 SI8622BT-AS2R reliable?
The price and inventory of SI8622BT-AS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8622BT-AS2R is usually 5 days.
3.What payment methods are accepted for SI8622BT-AS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8622BT-AS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8622BT-AS2R?
SI8622BT-AS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8622BT-AS2R 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 SI8622BT-AS2R?
For technical support, including SI8622BT-AS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8622BT-AS2R requirements.
6.How does Aetrix verify that SI8622BT-AS2R is sourced from the original manufacturer or authorized distributors?
All SI8622BT-AS2R 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 SI8622BT-AS2R meets industry standards.
7.What is the process for return or replacement of SI8622BT-AS2R?
All SI8622BT-AS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI8622BT-AS2R, 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 SI8622BT-AS2R part is unused and in its original packaging.
Return procedure for SI8622BT-AS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8622BT-AS2R 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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