My Inquiry
My Account
Skyworks Solutions Inc. SI8622ET-AS
- Part No.:
- SI8622ET-AS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8622ET-AS.pdf
- Description:
- AUTOMOTIVE HIGH DATA RATE, LOW P
- Quantity:
- Payment:
- Shipping:
Inventory:3,887
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI8622ET-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, and 5 kVRMS isolation rating. It features selectable fail-safe output (default high), operates from 2.5–5.5 V per side, and delivers ultra-low power consumption-4.2 mA per channel at 100 Mbps (5 V) and 3.5 mA per channel at 100 Mbps (2.5 V)-for isolated communication in battery management systems.
For engineers reviewing the SI8622ET-AS datasheet, SI8622ET-AS pinout, SI8622ET-AS application, or SI8622ET-AS equivalent, key selection criteria include its reinforced VDE 0884-10 certification, 100 kV/µs CMTI (T-grade), AEC-Q100 qualification, and dual-channel bidirectional signal isolation with independent side supplies and Schmitt-trigger inputs for noise immunity in high-voltage automotive and industrial interfaces.
Technical Context
The SI8622ET-AS implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust operation without external components beyond 0.1 µF bypass capacitors. Its architecture supports independent undervoltage lockout (UVLO) monitoring on both sides (VDD1/VDD2), with hysteresis of 70 mV typical and fail-safe default-high output behavior during input-side power loss.
It integrates two isolated data channels with matched timing: 0.5 ns typical channel-channel skew, 2 ns propagation delay skew, and 5 ns minimum pulse width. The device maintains stable performance from –40 °C to +125 °C and achieves 60-year lifetime at rated working voltage under reinforced insulation conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial links including SPI, RS-485, and CAN FD physical layer isolation. |
| Propagation delay | 5.0–14 ns - enables precise timing-critical applications such as motor control gate drive synchronization. |
| Isolation rating | 5 kVRMS reinforced - certified to VDE 0884-10 and UL 1577, suitable for safety-critical barrier separation in EV traction inverters. |
| CMTI | 100 kV/µs (T-grade) - ensures reliable operation in noisy high-dv/dt environments like DC-DC converters and IGBT drivers. |
| 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. |
| Fail-safe mode | Default high output - maintains defined logic state during VDD1 loss while VDD2 remains powered, critical for safe system shutdown. |
| Operating temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial ambient conditions without derating. |
Pinout & Package
SI8622ET-AS uses a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance optimized for reinforced insulation. Pin assignments 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 logic; must be low-impedance and separated from GND2 by isolation barrier. |
| VDD1 (Pin 3) | Side 1 power supply | Supplies input-side circuitry; requires 0.1 µF bypass capacitor placed adjacent to pin. |
| A1 (Pin 4) | Side 1 digital I/O | Bidirectional isolated channel 1 input/output; Schmitt-trigger input for noise immunity. |
| A2 (Pin 5) | Side 1 digital I/O | Bidirectional isolated channel 2 input/output; electrically identical to A1, independent timing. |
| GND2 (Pins 9, 16) | Side 2 ground reference | Return path for VDD2-supplied logic; galvanically isolated from GND1; defines secondary-side common. |
| VDD2 (Pin 14) | Side 2 power supply | Supplies output-side circuitry; independent of VDD1, enabling level-shifting and fault containment. |
| B1 (Pin 13) | Side 2 digital I/O | Corresponding output of channel 1; matches A1 timing with <0.5 ns channel-channel skew. |
| B2 (Pin 12) | Side 2 digital I/O | Corresponding output of channel 2; fully decoupled from B1 for dual independent isolation paths. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates optical degradation and startup delays; no initialization required at power-on. |
| Selectably fail-safe output (default high) | Ensures known logic state during VDD1 brownout-critical for watchdog signaling and safety interlocks. |
| Reinforced VDE 0884-10 certification | Validated for single-fault safety in medical (IEC 60601-1) and industrial (IEC 62368-1) end equipment. |
| Ultra-low power at high speed | 3.5 mA per channel @ 100 Mbps / 2.5 V enables thermally constrained designs in sealed enclosures. |
| 100 kV/µs CMTI (T-grade) | Prevents data corruption in high-noise motor drives and fast-switching SiC/GaN power stages. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use from –40 °C to +125 °C junction temperature with zero defects in HTOL testing. |
Applications
| Battery Management Systems (BMS) | Onboard Chargers (OBC) |
|---|---|
Use Scenario: Isolating cell voltage monitor ADC outputs and MCU command signals across high-voltage battery packs (up to 1000 V). IC Role / Device Role / Timing Role: Dual-channel isolator providing independent, low-skew signal paths for voltage sampling and charge/discharge control commands. Use Value: Enables accurate, noise-immune telemetry and failsafe shutdown via default-high fail-safe mode during pack-side power loss. |
Use Scenario: Isolating digital control signals between low-voltage MCU and high-voltage AC/DC and DC/DC stages in EV charging units. IC Role / Device Role / Timing Role: Bidirectional isolation of PWM enable, fault reporting, and status handshake signals with sub-10 ns latency. Use Value: Maintains functional safety integrity under 100 kV/µs transients generated by SiC MOSFET switching in PFC and LLC stages. |
| Traction Inverters | Industrial Motor Drives |
Use Scenario: Isolating gate driver control signals and DESAT feedback from MCU to IGBT/SiC modules in EV powertrains. IC Role / Device Role / Timing Role: Dual-channel isolator delivering synchronized PWM and fault-clear signals with <0.5 ns channel skew. Use Value: Prevents shoot-through and enables fast fault response (<1 µs) due to low propagation delay and high CMTI. |
Use Scenario: Isolating encoder position data and motion controller outputs in servo drives operating in EMI-heavy factory environments. IC Role / Device Role / Timing Role: High-speed, low-jitter isolation of quadrature encoder signals and direction/enable commands. Use Value: Preserves position accuracy with 350 ps peak eye diagram jitter and 5 ns minimum pulse width support. |
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 |
|---|---|---|---|
| ADUM2201ARWZ | 2.5 kVRMS basic isolation; 100 Mbps max; 13 ns propagation delay; no AEC-Q100 or VDE reinforced cert. | Suitable for non-safety-critical industrial comms; not approved for automotive or medical reinforced barriers. | Choose when cost sensitivity outweighs safety certification and high-speed timing requirements. |
| ISO7721FDWR | 5 kVRMS reinforced; 100 Mbps; 11 ns propagation delay; 85 kV/µs CMTI; no default-high fail-safe option. | Meets IEC 62368-1 but lacks AEC-Q100; requires external pull-ups for high-default behavior. | Prefer when TI ecosystem integration is prioritized and fail-safe behavior can be implemented externally. |
Compared with ADUM2201ARWZ and ISO7721FDWR, the SI8622ET-AS uniquely combines AEC-Q100 Grade 1, VDE-reinforced 5 kVRMS, 100 kV/µs CMTI, and factory-configured default-high fail-safe mode-making it the only drop-in solution for automotive BMS and OBC where all three attributes are mandatory.
Availability
SI8622ET-AS is available at Aetrix Electronics and suitable for battery management systems, onboard chargers, traction inverters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI8622ET-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 designed specifically for safety-critical isolation in automotive electrification and industrial automation, emphasizing reliability, low power, and regulatory compliance over legacy optocoupler alternatives.
FAQ
What isolation rating and certification does the SI8622ET-AS support?
The SI8622ET-AS provides 5 kVRMS reinforced isolation and is certified to UL 1577 (5000 VRMS/1 min), VDE 0884-10 (reinforced), IEC 62368-1, and IEC 60601-1. These certifications validate its use in medical and automotive safety barriers where single-fault protection is required. The SI8622ET-AS meets all test conditions specified in VDE 0884-10 for reinforced insulation, including surge withstand up to 10 kV.
Does the SI8622ET-AS require external components for stable operation?
The SI8622ET-AS requires only two 0.1 µF bypass capacitors-one between VDD1 and GND1, and another between VDD2 and GND2-placed adjacent to the respective pins. No pull-up/pull-down resistors, initialization sequences, or clock sources are needed. Its RF-based architecture eliminates startup delays, and Schmitt-trigger inputs provide inherent noise immunity without external filtering.
How does the fail-safe mode function in the SI8622ET-AS?
The SI8622ET-AS is configured at manufacture for default-high fail-safe operation: when VDD1 is unpowered but VDD2 remains active, outputs B1 and B2 remain logic high. This behavior is hardwired via internal pull-ups and does not require configuration registers or external components. It ensures predictable system state during input-side brownouts-essential for safety interlocks in battery management and traction control.
What is the maximum data rate and timing performance of the SI8622ET-AS?
The SI8622ET-AS supports data rates up to 150 Mbps with typical propagation delay of 8.0 ns, pulse width distortion of 0.2 ns, channel-channel skew of 0.5 ns, and peak eye diagram jitter of 350 ps. These values are guaranteed across –40 °C to +125 °C and 2.5–5.5 V supply ranges, enabling deterministic real-time communication in motor control and power converter feedback loops.
Is the SI8622ET-AS qualified for automotive applications?
Yes, the SI8622ET-AS is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C), with full PPAP documentation support and IMDS/CAMDS compliance. It is explicitly listed in Skyworks' automotive-grade OPN matrix for use in onboard chargers, battery management systems, and traction inverters-meeting AIAG requirements for zero-defect manufacturing and long-term reliability in automotive power electronics.
SI8622ET-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
SI8622ET-AS FAQ
1.How can I place an order for SI8622ET-AS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8622ET-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 SI8622ET-AS reliable?
The price and inventory of SI8622ET-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8622ET-AS is usually 5 days.
3.What payment methods are accepted for SI8622ET-AS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8622ET-AS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8622ET-AS?
SI8622ET-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8622ET-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 SI8622ET-AS?
For technical support, including SI8622ET-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8622ET-AS requirements.
6.How does Aetrix verify that SI8622ET-AS is sourced from the original manufacturer or authorized distributors?
All SI8622ET-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 SI8622ET-AS meets industry standards.
7.What is the process for return or replacement of SI8622ET-AS?
All SI8622ET-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI8622ET-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 SI8622ET-AS part is unused and in its original packaging.
Return procedure for SI8622ET-AS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8622ET-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
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
