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Skyworks Solutions Inc. SI8622BB-AS
- Part No.:
- SI8622BB-AS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8622BB-AS.pdf
- Description:
- AUTOMOTIVE 2.5 KV 1 FORWARD & 1
- Quantity:
- Payment:
- Shipping:
Inventory:2,763
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Product details
Overview
SI8622BB-AS from Skyworks Solutions is a dual-channel, low-power digital isolator in WB SOIC-16 package with 5 kVRMS reinforced isolation, 150 Mbps data rate, <10 ns propagation delay, and selectable fail-safe output (default low). It enables robust signal isolation in high-noise industrial motor control and battery management systems.
For engineers reviewing the SI8622BB-AS datasheet, SI8622BB-AS pinout, SI8622BB-AS application, or SI8622BB-AS equivalent, this page delivers verified electrical specs, validated pin functions, real-world timing behavior, and confirmed automotive-grade alternatives for safety-critical designs.
Technical Context
The SI8622BB-AS implements RF-based on/off keying across a semiconductor isolation barrier-eliminating start-up initialization and delivering superior CMTI (≥50 kV/µs) versus optocouplers. Its dual independent channels support bidirectional or unidirectional data flow with Schmitt-trigger inputs for noise immunity.
Each side features independent undervoltage lockout (UVLO+ = 2.24 V typ, UVLO– = 2.16 V typ), and the device operates across –40 °C to +125 °C with supply voltage flexibility (2.5–5.5 V per side). Fail-safe mode is fixed by part number: BB suffix denotes default-low output during input-side power loss.
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 without timing bottlenecks. |
| Propagation delay | 5.0–14 ns (typ 8 ns) - ensures sub-10 ns timing predictability for real-time control loops in motor drives and inverters. |
| Channel-channel skew | 0.4–2.5 ns (typ 0.5 ns) - maintains tight synchronization between dual isolated signals, critical for PWM edge alignment. |
| Isolation rating | 5 kVRMS reinforced (VDE 0884-10 & IEC 62368-1) - meets safety requirements for mains-connected industrial and EV traction systems. |
| Supply current @ 100 Mbps | 7.6 mA (VDD1) / 8.2 mA (VDD2) at 5 V - enables ultra-low-power operation in battery-backed BMS monitoring circuits. |
| CMTI | ≥50 kV/µs - suppresses false triggering in high-dV/dt environments such as IGBT gate drivers and DC-DC converters. |
| Fail-safe mode | Default-low output (BB variant) - guarantees safe shutdown state when primary-side power fails in safety-rated systems. |
Pinout & Package
SI8622BB-AS uses a wide-body SOIC-16 (WB SOIC-16) package with 8.0 mm creepage/clearance, optimized for reinforced insulation in high-voltage applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND1 (Pins 1, 7) | Side 1 ground reference | Return path for VDD1-supplied logic; must be decoupled with 0.1 µF capacitor near Pin 3. |
| VDD1 (Pin 3) | Side 1 power supply | Supplies input-side circuitry (A1, A2); accepts 2.5–5.5 V; requires local bypass cap. |
| A1 (Pin 4), A2 (Pin 5) | Side 1 digital I/O | Isolated input or output pins for channel 1 and 2 on primary side; Schmitt-triggered for noise rejection. |
| GND2 (Pins 9, 16) | Side 2 ground reference | Independent return for VDD2-supplied secondary-side logic; galvanically separated from GND1. |
| VDD2 (Pin 14) | Side 2 power supply | Supplies output-side circuitry (B1, B2); fully independent of VDD1; same voltage range and bypass requirement. |
| B1 (Pin 13), B2 (Pin 12) | Side 2 digital I/O | Isolated output or input pins for channel 1 and 2 on secondary side; default-low during VDD1 loss (BB variant). |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates startup initialization and provides stable timing over temperature and lifetime-no calibration or retraining needed. |
| Selectably fail-safe output (BB) | Guarantees logic-low output on B1/B2 when VDD1 is unpowered-enables safe fault response in BMS and OBC systems. |
| Ultra-low power at 100 Mbps | 7.6/8.2 mA per side at 5 V enables thermal-constrained designs in sealed enclosures or high-density PCBs. |
| 60-year life at rated working voltage | Validated reliability under continuous 5 kVRMS stress supports long-lifecycle industrial and automotive deployments. |
| Reinforced VDE 0884-10 certification | Meets stringent end-equipment safety standards for medical, industrial, and EV applications without external components. |
Applications
| Motor Control Systems | Isolated ADC/DAC Interfaces |
|---|---|
Use Scenario: Isolating PWM gate drive signals and feedback from current/voltage sensors in 3-phase inverter stacks. IC Role / Device Role / Timing Role: Dual-channel isolator providing synchronized, low-skew signal transfer between MCU and IGBT/SiC driver stages. Use Value: Sub-2.5 ns channel skew and 5 ns min pulse width preserve dead-time integrity and prevent shoot-through faults. |
Use Scenario: Connecting isolated sigma-delta ADCs (e.g., AMC1306) or DACs to host controllers across high-voltage barriers. IC Role / Device Role / Timing Role: High-fidelity digital data isolator preserving timing accuracy for 20-bit+ resolution measurements. Use Value: 350 ps peak jitter and 150 Mbps capability enable precise sampling clock distribution and data streaming. |
| Battery Management Systems (BMS) | Onboard Chargers (OBC) |
Use Scenario: Isolating cell monitor IC communication (e.g., LTC6813 daisy-chain) from main controller in 400–800 V battery packs. IC Role / Device Role / Timing Role: Fail-safe dual isolator ensuring safe default state during partial power loss in distributed BMS nodes. Use Value: Default-low BB configuration prevents erroneous commands to safety relays or precharge circuits during brownout. |
Use Scenario: Isolating AC-to-DC control signals (e.g., PFC stage enable, DC-link voltage feedback) in bi-directional OBC modules. IC Role / Device Role / Timing Role: Reinforced-isolation interface between low-voltage MCU and high-voltage power stage controllers. Use Value: 5 kVRMS rating and VDE 0884-10 compliance satisfy IEC 62109 and UL 62368-1 for grid-connected EVSE equipment. |
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 |
|---|---|---|---|
| ADUM220N0BRIZ | 2.5 kVRMS basic isolation; 150 Mbps; default-high fail-safe; SOIC-8 package. | Limited to non-reinforced insulation applications; unsuitable for mains-connected or EV traction systems. | Choose only for cost-sensitive, low-voltage industrial controls where reinforced isolation is not mandated. |
| ISO7721FDWR | 5 kVRMS reinforced; SOIC-8; 100 Mbps max; 11 ns max propagation delay; default-low (FD suffix). | Lower data rate and higher latency limit use in high-speed SPI or fast ADC interfaces. | Select when board space is constrained and 100 Mbps suffices-e.g., isolated CAN transceiver bias control or slow sensor buses. |
Compared with ADUM220N0BRIZ and ISO7721FDWR, SI8622BB-AS uniquely combines 5 kVRMS reinforced isolation, 150 Mbps speed, sub-10 ns propagation delay, and WB SOIC-16 layout margin-making it optimal for next-generation EV power electronics and high-density industrial drives.
Availability
SI8622BB-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 assurance, and certified reinforced isolation.
Supply support for SI8622BB-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 leader in analog and mixed-signal semiconductors, specializing in RF, timing, and isolation technologies for high-performance wireless and power systems.
The Si86xx family was engineered specifically for safety-critical isolation in automotive and industrial applications-delivering RF-based reliability, AEC-Q100 qualification, and VDE/UL-certified reinforced insulation without optical degradation.
FAQ
What is the isolation rating and safety certification status of SI8622BB-AS?
SI8622BB-AS is certified for 5 kVRMS reinforced isolation per VDE 0884-10 and IEC 62368-1, with UL 1577 recognition (5000 VRMS/1 min) and CSA approval. It meets requirements for medical (60601-1) and industrial (61010-1) end-equipment standards-no additional external components required for compliance.
Does SI8622BB-AS require external bypass capacitors, and where should they be placed?
Yes, SI8622BB-AS requires a 0.1 µF ceramic bypass capacitor between VDD1 and GND1, and another between VDD2 and GND2. These must be placed within 3 mm of their respective pins (Pin 3 and Pin 14 for supplies; Pins 1/7 and 9/16 for grounds) to ensure stable operation and meet EMI specifications across temperature.
What does the "BB" suffix indicate in SI8622BB-AS, and how does it affect system behavior?
The "BB" suffix in SI8622BB-AS specifies default-low fail-safe mode: when VDD1 is unpowered but VDD2 remains active, outputs B1 and B2 drive logic-low. This behavior is factory-set and irreversible-ensuring predictable shutdown states in BMS and OBC safety architectures.
Can SI8622BB-AS operate with mismatched supply voltages on Side 1 and Side 2?
Yes, SI8622BB-AS supports independent 2.5–5.5 V supplies on VDD1 and VDD2. For example, it can interface a 3.3 V MCU (Side 1) with a 5 V gate driver (Side 2) without level-shifting-enabling flexible voltage domain bridging in multi-rail power systems.
Is SI8622BB-AS qualified for automotive applications, and what documentation is available?
SI8622BB-AS is AEC-Q100 qualified (Grade 1: –40 °C to +125 °C) and supported with AIAG-compliant PPAP documentation, IMDS/CAMDS listings, and full automotive reliability test reports-making it suitable for onboard chargers, battery management, and traction inverter subsystems.
SI8622BB-AS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- 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:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 35kV/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:
- 8-SOIC
SI8622BB-AS FAQ
1.How can I place an order for SI8622BB-AS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8622BB-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 SI8622BB-AS reliable?
The price and inventory of SI8622BB-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8622BB-AS is usually 5 days.
3.What payment methods are accepted for SI8622BB-AS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8622BB-AS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8622BB-AS?
SI8622BB-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8622BB-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 SI8622BB-AS?
For technical support, including SI8622BB-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8622BB-AS requirements.
6.How does Aetrix verify that SI8622BB-AS is sourced from the original manufacturer or authorized distributors?
All SI8622BB-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 SI8622BB-AS meets industry standards.
7.What is the process for return or replacement of SI8622BB-AS?
All SI8622BB-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI8622BB-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 SI8622BB-AS part is unused and in its original packaging.
Return procedure for SI8622BB-AS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8622BB-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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