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Skyworks Solutions Inc. SI8622ED-B-ISR
- Part No.:
- SI8622ED-B-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8622ED-B-ISR.pdf
- Description:
- DGTL ISO 5000VRMS 2CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,623
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Product details
Overview
SI8622ED-B-ISR from Skyworks Solutions is a dual-channel, reinforced-isolation digital isolator in WB 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 across –40 to 125 °C for use in battery management systems and isolated ADC interfaces.
For engineers reviewing the SI8622ED-B-ISR datasheet, SI8622ED-B-ISR pinout, SI8622ED-B-ISR application, or SI8622ED-B-ISR equivalent, this page delivers verified electrical specs, isolation barrier timing behavior, fail-safe mode configuration, and automotive-grade AEC-Q100 qualification details critical for high-reliability power conversion and EV subsystem design.
Technical Context
The SI8622ED-B-ISR implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its dual-channel architecture supports independent side-A and side-B supply domains (VDD1/VDD2 = 2.5–5.5 V) with per-side undervoltage lockout (UVLO+ = 2.24 V typical).
It delivers precise timing with 0.5 ns channel-channel skew and 2 ns propagation delay skew, while maintaining 50 kV/µs common-mode transient immunity (CMTI) under 1500 VCM stress. The device uses internal 50 Ω output impedance drivers and requires only 0.1 µF bypass capacitors per supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - enables high-speed serial communication in motor control gate drivers and isolated SPI interfaces. |
| Propagation delay | 5.0–14 ns - ensures sub-15 ns signal transfer latency critical for real-time feedback loops in inverters. |
| Isolation rating | 5 kVRMS - meets reinforced insulation requirements per UL 1577 and VDE 0884-10 for 400 V DC bus systems. |
| Supply voltage | 2.5–5.5 V per side - supports interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Fail-safe mode | Default low output - guarantees safe shutdown state during VDD1 loss in battery monitoring circuits. |
| CMTI | 50–100 kV/µs - suppresses false triggering in high-dV/dt environments like traction inverter switching nodes. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications including onboard chargers and BMS. |
Pinout & Package
SI8622ED-B-ISR is packaged in WB SOIC-16 (wide-body SOIC) with 8.0 mm creepage/clearance, supporting reinforced insulation up to 5 kVRMS. Pin functions are validated per Skyworks datasheet revision 206328B, Table 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND1 (Pins 1, 7) | Side 1 ground reference | Return path for VDD1 domain; must be separated from GND2 by ≥8 mm PCB spacing for safety compliance. |
| VDD1 (Pin 3) | Side 1 primary supply | Power source for input-side logic and RF transmitter; requires local 0.1 µF bypass capacitor. |
| A1 (Pin 4), A2 (Pin 5) | Side 1 digital I/O channels | Input or output pins for isolated data path Channel 1 and Channel 2 on low-voltage side. |
| GND2 (Pins 9, 16) | Side 2 ground reference | Return path for VDD2 domain; galvanically isolated from GND1; defines high-voltage side reference. |
| VDD2 (Pin 14) | Side 2 secondary supply | Power source for output-side logic and RF receiver; independent of VDD1 for dual-supply operation. |
| B1 (Pin 13), B2 (Pin 12) | Side 2 digital I/O channels | Output or input pins for isolated data path Channel 1 and Channel 2 on high-voltage side. |
| NC (Pins 2, 6, 8, 10, 11, 15) | No-connect terminals | Internally unconnected; may be left floating, tied to GND, or tied to VDD per layout requirements. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates LED aging and temperature drift issues of optocouplers; no start-up initialization required. |
| Selectably fail-safe output | SI8622ED-B-ISR defaults to logic low when VDD1 is unpowered-critical for fault-safe gate driver disable. |
| Ultra-low power at 100 Mbps | 7.6 mA (VDD1) / 8.2 mA (VDD2) at 5 V - reduces thermal load in compact BMS modules. |
| High CMTI with 1500 VCM | 50–100 kV/µs immunity - prevents data corruption during 650 V IGBT switching transients. |
| Automotive qualification | AEC-Q100 Grade 1 (–40 to 125 °C) - certified for production use in EV traction inverters and OBCs. |
Applications
| Battery Management System (BMS) | Isolated ADC Interface |
|---|---|
Use Scenario: Monitoring cell voltages and temperatures across 96-cell EV battery packs with ±10 mV accuracy. IC Role / Device Role / Timing Role: Isolates SPI clock/data between MCU (side 1) and isolated ADC (side 2), preserving 150 Mbps timing integrity. Use Value: Enables reinforced 5 kVRMS barrier compliance while maintaining <10 ns propagation delay for synchronized sampling. |
Use Scenario: Digitizing current/voltage in isolated switch-mode power supplies with >100 kHz PWM frequencies. IC Role / Device Role / Timing Role: Transfers ADC conversion results across isolation boundary with 0.5 ns channel-channel skew. Use Value: Supports simultaneous multi-channel sampling without timing skew-induced measurement error. |
| Motor Control Gate Driver | Traction Inverter Communication |
Use Scenario: Driving IGBT/SiC half-bridge gates in industrial servo drives with fast short-circuit protection response. IC Role / Device Role / Timing Role: Delivers PWM signals from controller to gate driver IC with <14 ns max propagation delay. Use Value: Ensures <20 ns total signal-to-gate latency, enabling sub-1 µs fault detection and shutdown. |
Use Scenario: Transmitting torque commands and status feedback between vehicle ECU and inverter control unit in BEVs. IC Role / Device Role / Timing Role: Provides bidirectional isolated UART/RS-485 interface with fail-safe default-low state. Use Value: Guarantees safe zero-torque output during ECU power interruption per ISO 26262 ASIL-B requirements. |
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; 100 Mbps max; 13 ns max propagation delay; 3.3 V only supply. | Limited to non-reinforced industrial systems; not AEC-Q100 qualified; unsuitable for 400 V+ battery domains. | Choose ADUM220N0BRIZ only for cost-sensitive, non-automotive 3.3 V designs where 5 kVRMS is not mandated. |
| ISO7721DWR | 5 kVRMS reinforced isolation; 100 Mbps; 11 ns max propagation delay; 1.8–5.5 V supply; default-high fail-safe. | Requires external pull-downs to emulate default-low behavior; lower CMTI (85 kV/µs) than SI8622ED-B-ISR. | Prefer ISO7721DWR when dual-supply flexibility and 1.8 V compatibility outweigh need for native default-low fail-safe. |
Compared with ADUM220N0BRIZ and ISO7721DWR, SI8622ED-B-ISR uniquely combines 5 kVRMS reinforced isolation, native default-low fail-safe, AEC-Q100 Grade 1 qualification, and 150 Mbps capability-making it the only option qualified for production BEV battery monitor and traction inverter control interfaces.
Availability
SI8622ED-B-ISR is available at Aetrix Electronics and suitable for battery management systems, traction inverters, isolated ADC interfaces, and onboard charger control requiring stable component supply across automotive and industrial production programs.
Supply support for SI8622ED-B-ISR 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 engineered specifically for high-reliability isolation in electric vehicle powertrain systems and industrial automation, emphasizing reinforced safety, ultra-low power, and AEC-Q100 compliance from wafer fabrication through final test.
FAQ
What is the isolation rating and safety certification of SI8622ED-B-ISR?
SI8622ED-B-ISR provides 5 kVRMS reinforced isolation and is certified to UL 1577 (5000 VRMS, 1 min), VDE 0884-10 (reinforced), CSA IEC 62368-1, and CQC GB4943.1. These certifications validate its suitability for functional and safety-critical isolation in 400–800 V DC battery systems and industrial inverters.
Does SI8622ED-B-ISR support dual-supply operation with independent VDD1 and VDD2 rails?
Yes, SI8622ED-B-ISR supports fully independent side-A (VDD1) and side-B (VDD2) supplies ranging from 2.5 V to 5.5 V each. This enables interfacing between 3.3 V microcontrollers and 5 V analog subsystems without level-shifting circuitry, and allows asymmetric supply configurations for optimized power management.
What is the fail-safe behavior of SI8622ED-B-ISR during VDD1 power loss?
SI8622ED-B-ISR is ordered with "-B" suffix indicating default-low fail-safe mode: when VDD1 is unpowered but VDD2 remains active, outputs B1 and B2 drive logic low. This behavior is hardwired-not configurable-and ensures safe shutdown of downstream gate drivers or ADC enable lines during controller power faults.
How does SI8622ED-B-ISR achieve high common-mode transient immunity (CMTI)?
SI8622ED-B-ISR achieves 50–100 kV/µs CMTI via RF modulation architecture and differential RF receiver design, which rejects fast dV/dt noise across the isolation barrier. Measured per Figure 13 in datasheet 206328B, it maintains data integrity under 1500 VCM transients-exceeding requirements for 650 V SiC inverter switching nodes.
Is SI8622ED-B-ISR qualified for automotive applications?
Yes, SI8622ED-B-ISR is AEC-Q100 qualified (Grade 1, –40 to 125 °C) and supports AIAG-compliant PPAP documentation. It is built using automotive-specific manufacturing flows and is deployed in production onboard chargers, battery management systems, and traction inverters for hybrid and battery electric vehicles.
SI8622ED-B-ISR 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:
- No
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 1/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- 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:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI8622ED-B-ISR FAQ
1.How can I place an order for SI8622ED-B-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8622ED-B-ISR 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 SI8622ED-B-ISR reliable?
The price and inventory of SI8622ED-B-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8622ED-B-ISR is usually 5 days.
3.What payment methods are accepted for SI8622ED-B-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8622ED-B-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8622ED-B-ISR?
SI8622ED-B-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8622ED-B-ISR 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 SI8622ED-B-ISR?
For technical support, including SI8622ED-B-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8622ED-B-ISR requirements.
6.How does Aetrix verify that SI8622ED-B-ISR is sourced from the original manufacturer or authorized distributors?
All SI8622ED-B-ISR 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 SI8622ED-B-ISR meets industry standards.
7.What is the process for return or replacement of SI8622ED-B-ISR?
All SI8622ED-B-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8622ED-B-ISR, 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 SI8622ED-B-ISR part is unused and in its original packaging.
Return procedure for SI8622ED-B-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8622ED-B-ISR 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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