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Skyworks Solutions Inc. SI8622BT-AS
- Part No.:
- SI8622BT-AS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8622BT-AS.pdf
- Description:
- AUTOMOTIVE 10 KV SURGE, 5 KV ISO
- Quantity:
- Payment:
- Shipping:
Inventory:1,695
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Product details
Overview
SI8622BT-AS 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, 5 kVRMS isolation rating, and fail-safe default-high output mode. It operates across –40 to 125 °C with 2.5–5.5 V supply per side and is certified to UL, VDE (reinforced per VDE 0884-10), CSA, and CQC standards for use in battery management systems and traction inverters.
For engineers reviewing the SI8622BT-AS datasheet, SI8622BT-AS pinout, SI8622BT-AS application, or SI8622BT-AS equivalent, this page delivers verified electrical specs, WB SOIC-16 terminal mapping, fail-safe behavior under undervoltage, CMTI of 100 kV/µs, and automotive-grade AEC-Q100 qualification - all critical for high-reliability isolated communication in EV powertrain subsystems.
Technical Context
The SI8622BT-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-channel architecture supports independent bidirectional signal transfer between isolated domains with Schmitt-trigger inputs and precise timing control.
Each channel features independent undervoltage lockout (UVLO) with 2.24 V typical rising threshold and 70 mV hysteresis, plus selectable fail-safe output state (default-high per "T" suffix). The device achieves 0.5 ns typical channel-channel skew and 2 ns propagation delay skew, enabling synchronized timing in motor gate driver feedback loops and isolated ADC interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed CAN FD, SPI, and PWM feedback in real-time power control. |
| Propagation delay | 5.0–14 ns - ensures sub-20 ns round-trip latency for closed-loop motor control timing budgets. |
| Isolation rating | 5000 VRMS (1 min) - meets reinforced insulation requirements for 800 V battery systems per IEC 62368-1. |
| CMTI | 100 kV/µs - suppresses false triggering during fast dv/dt transients in SiC/GaN inverter switching. |
| Supply voltage | 2.5–5.5 V per side - enables direct interface with 3.3 V microcontrollers and 5 V analog front-ends. |
| Fail-safe mode | Default-high output - guarantees known logic state during VDD1 loss in BMS fault detection circuits. |
| Operating temperature | –40 to 125 °C - qualified for under-hood and inverter module placement in battery electric vehicles. |
| AEC-Q100 grade | Grade 1 - validated for automotive powertrain applications with zero defects at HTOL and TC testing. |
Pinout & Package
SI8622BT-AS uses a wide-body SOIC-16 (WB SOIC-16) package with 8.0 mm creepage/clearance, optimized for reinforced insulation in high-voltage systems. Pin assignments are validated per Skyworks datasheet revision 206328B, Table 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND1 (Pin 1, 7) | Side 1 ground reference | 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 input-side transmitter; accepts 2.5–5.5 V; UVLO triggers below 2.24 V rising threshold. |
| A1 (Pin 4) | Side 1 digital I/O | Primary input channel; Schmitt-triggered for >0.44 V hysteresis against EMI in noisy motor drive environments. |
| A2 (Pin 5) | Side 1 digital I/O | Secondary input channel; identical electrical characteristics to A1; supports dual-signal isolation (e.g., PWM + enable). |
| GND2 (Pin 9, 16) | Side 2 ground reference | Return path for output-side receiver; galvanically isolated from GND1; requires separate 0.1 µF bypass at Pin 14. |
| VDD2 (Pin 14) | Side 2 power supply | Supplies output-side receiver; independent UVLO monitoring ensures fail-safe behavior even if VDD1 fails first. |
| B1 (Pin 13) | Side 2 digital I/O | Primary output channel; default-high during VDD1 unpowered state per "T" ordering option. |
| B2 (Pin 12) | Side 2 digital I/O | Secondary output channel; matches B1 timing (0.5 ns typical channel-channel skew) for synchronized gate signals. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates LED aging and temperature drift; enables stable 150 Mbps operation across –40 to 125 °C without recalibration. |
| Reinforced VDE 0884-10 certification | Validated for 5 kVRMS working voltage and 10 kV surge; satisfies IEC 60601-1 and IEC 62368-1 system-level safety requirements. |
| Selectably fail-safe output | "T" suffix denotes default-high mode - forces B1/B2 high during VDD1 loss, enabling safe shutdown in BMS overvoltage detection. |
| Ultra-low power at 100 Mbps | 7.6 mA (VDD1) / 8.2 mA (VDD2) at 5 V - reduces thermal load in densely packed inverter control boards. |
| 60-year lifetime at rated voltage | Proven reliability under continuous 5 kVRMS stress; eliminates field failure risk in 15-year EV powertrain deployments. |
| High CMTI (100 kV/µs) | Prevents metastability during 100 V/ns transients in 800 V SiC inverters; exceeds ISO 26262 ASIL-D EMC requirements. |
Applications
| Battery Management Systems (BMS) | Traction Inverters |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADC outputs and pack contactor control signals in 400–800 V battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator transferring precision analog measurement data and safety-critical open/close commands across isolation barrier. Use Value: 0.5 ns channel-channel skew preserves timing correlation between voltage and current sampling; 100 kV/µs CMTI prevents false trips during pack short-circuit events. |
Use Scenario: Providing isolated gate drive signals and current sense feedback for SiC MOSFET half-bridges in EV traction inverters. IC Role / Device Role / Timing Role: Transmitting PWM edge timing and desaturation fault signals with sub-10 ns propagation delay and matched channel skew. Use Value: 5.0–14 ns propagation delay enables <20 ns total loop delay for overcurrent protection; reinforced 5 kVRMS rating supports 800 V DC bus clearance. |
| Onboard Chargers (OBC) | Charging Stations |
|
Use Scenario: Isolating digital control signals between AC/DC PFC stage and DC/DC LLC stage in bi-directional OBCs. IC Role / Device Role / Timing Role: Bidirectional data isolation for voltage regulation commands and status reporting across primary-secondary boundary. Use Value: 2.5–5.5 V dual-supply flexibility allows direct interface with both 3.3 V MCU and 5 V analog ICs; AEC-Q100 Grade 1 ensures automotive qualification. |
Use Scenario: Enabling isolated communication between grid-side controller and vehicle-side handshake circuitry in DC fast chargers. IC Role / Device Role / Timing Role: Reliable UART/SPI isolation for ISO 15118-compliant plug-and-charge handshaking under EMI-heavy industrial environments. Use Value: Schmitt-trigger inputs reject common-mode noise from 100+ kW switching; 150 Mbps capability future-proofs for higher-speed charging protocols. |
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 |
|---|---|---|---|
| ADUM2201BRWZ | 2.5 kVRMS basic isolation; 25 Mbps max data rate; no AEC-Q100 qualification; SOIC-8 package. | Limited to non-automotive industrial automation; insufficient for 800 V BMS or traction inverter isolation barriers. | Choose only for cost-sensitive, low-speed, non-automotive designs where reinforced insulation is not required. |
| ISO7721FDWR | 5 kVRMS reinforced isolation; 100 Mbps max; 100 kV/µs CMTI; SOIC-8; no default-high fail-safe option. | Supports EV charging but lacks guaranteed high-state fail-safe behavior needed for BMS fault escalation paths. | Select when dual-channel speed and CMTI are critical, but fail-safe polarity can be managed externally via pull-ups. |
Compared with ADUM2201BRWZ and ISO7721FDWR, SI8622BT-AS uniquely combines AEC-Q100 Grade 1, 150 Mbps, default-high fail-safe, and VDE-reinforced 5 kVRMS in WB SOIC-16 - making it the only drop-in solution for ASIL-B/C BMS and traction inverter signal isolation.
Availability
SI8622BT-AS is available at Aetrix Electronics and suitable for battery management systems, traction inverters, onboard chargers, and DC fast charging stations requiring stable component supply across automotive and industrial production lifecycles.
Supply support for SI8622BT-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, with leadership in RF, timing, and isolation technologies for wireless, automotive, and industrial markets.
The SI862x family was designed specifically for high-reliability, high-speed digital isolation in automotive electrification and industrial energy systems - emphasizing AEC-Q100 compliance, reinforced safety certification, and ultra-low power at multi-Mbps rates.
FAQ
What is the isolation rating and safety certification of SI8622BT-AS?
SI8622BT-AS provides 5000 VRMS reinforced isolation per UL 1577 and VDE 0884-10, with additional CSA and CQC certifications. It meets IEC 62368-1 and IEC 60601-1 requirements for medical and industrial equipment, and its wide-body SOIC-16 package ensures 8.0 mm creepage for 800 V battery system compliance. SI8622BT-AS is fully certified for use in automotive BMS and traction inverters.
Does SI8622BT-AS support fail-safe operation, and how is it configured?
Yes, SI8622BT-AS features a factory-configured fail-safe mode: the "T" in the part number indicates default-high output state when VDD1 is unpowered but VDD2 remains active. This behavior is hardwired and does not require external components. During VDD1 brownout, B1 and B2 outputs remain logic high - a critical feature for safe shutdown signaling in battery management systems. SI8622BT-AS implements independent UVLO on both sides to guarantee deterministic response.
What are the supply voltage and operating temperature ranges for SI8622BT-AS?
SI8622BT-AS operates with independent 2.5–5.5 V supplies on both sides (VDD1 and VDD2), supporting mixed-voltage system interfacing. Its specified ambient operating range is –40 to 125 °C, and it is AEC-Q100 Grade 1 qualified - meaning it has passed accelerated stress testing for automotive powertrain applications including HTOL, TC, and ESD. SI8622BT-AS maintains full performance across this range without derating.
How does SI8622BT-AS achieve high noise immunity in electric vehicle environments?
SI8622BT-AS achieves 100 kV/µs common-mode transient immunity (CMTI) through its RF-based modulation scheme and differential receiver architecture - significantly exceeding legacy optocouplers and competing capacitive isolators. Its Schmitt-trigger inputs provide 0.44 V hysteresis, rejecting burst noise in high-dv/dt SiC inverter switching. SI8622BT-AS also features matched channel timing (0.5 ns skew) to preserve signal integrity in feedback loops exposed to magnetic fields.
What is the pin configuration and package type of SI8622BT-AS?
SI8622BT-AS uses a wide-body SOIC-16 (WB SOIC-16) package with 16 pins, including dual GND1/GND2 and VDD1/VDD2 supplies, two input channels (A1, A2), and two output channels (B1, B2). Pins 2, 6, 8, 10, 11, and 15 are no-connect. The package provides 8.0 mm creepage and clearance for reinforced insulation. SI8622BT-AS pinout is documented in Skyworks datasheet 206328B, Table 1.
SI8622BT-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:
- 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-AS FAQ
1.How can I place an order for SI8622BT-AS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8622BT-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 SI8622BT-AS reliable?
The price and inventory of SI8622BT-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8622BT-AS is usually 5 days.
3.What payment methods are accepted for SI8622BT-AS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8622BT-AS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8622BT-AS?
SI8622BT-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8622BT-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 SI8622BT-AS?
For technical support, including SI8622BT-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8622BT-AS requirements.
6.How does Aetrix verify that SI8622BT-AS is sourced from the original manufacturer or authorized distributors?
All SI8622BT-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 SI8622BT-AS meets industry standards.
7.What is the process for return or replacement of SI8622BT-AS?
All SI8622BT-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI8622BT-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 SI8622BT-AS part is unused and in its original packaging.
Return procedure for SI8622BT-AS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8622BT-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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