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Skyworks Solutions Inc. SI8622BT-IS2
- Part No.:
- SI8622BT-IS2
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8622BT-IS2.pdf
- Description:
- LOW-POWER SINGLE AND DUAL-CHANNE
- Quantity:
- Payment:
- Shipping:
Inventory:4,778
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Product details
Overview
SI8622BT-IS2 from Skyworks Solutions is a dual-channel, reinforced-isolation digital isolator in WB SOIC-16 package with 5 kVRMS isolation rating, 150 Mbps data rate, <10 ns propagation delay, and selectable fail-safe output (default high). It enables robust signal transmission across high-voltage barriers in isolated power supplies and motor control systems.
For engineers reviewing the SI8622BT-IS2 datasheet, SI8622BT-IS2 pinout, SI8622BT-IS2 application, or SI8622BT-IS2 equivalent, key selection criteria include its VDE-reinforced 5 kVRMS rating, 2.5–5.5 V dual-supply operation, Schmitt-trigger inputs for noise immunity, and automotive-grade AEC-Q100 qualification for battery management and traction inverter designs.
Technical Context
The SI8622BT-IS2 implements RF-based on/off keying modulation across a semiconductor isolation barrier-eliminating startup initialization and delivering superior CMTI (≥60 kV/µs) versus optocouplers. Its architecture supports independent undervoltage lockout (UVLO) per side with 70 mV hysteresis and precise timing control.
It features two unidirectional isolated channels (A1→B1, A2→B2), each with 50 Ω nominal output impedance, 5 ns minimum pulse width, and channel-to-channel skew ≤2.5 ns. Fail-safe mode is fixed by part number: "T" suffix denotes default-high outputs 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 CAN FD without external clock recovery. |
| Isolation rating | 5 kVRMS reinforced - certified to VDE 0884-10 and UL 1577, enabling use in safety-critical industrial and automotive HV systems. |
| Propagation delay | 5–14 ns - ensures tight timing margins in real-time control loops such as motor phase synchronization. |
| 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. |
| Power consumption | 3.4 mA @ 1 Mbps / 5.2 mA @ 100 Mbps (VDD=2.5 V) - enables ultra-low-power operation in battery-backed or energy-harvested subsystems. |
| CMTI | ≥60 kV/µs - suppresses false triggering in noisy environments like IGBT gate drivers and DC-DC converter feedback paths. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive and industrial ambient conditions without derating. |
Pinout & Package
SI8622BT-IS2 uses a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance ≥8.3 mm, supporting reinforced insulation up to 5 kVRMS. Pin assignments are validated per Skyworks datasheet revision 206328B.
| 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 to maintain isolation integrity. |
| VDD1 (Pin 3) | Side 1 primary supply | Powers input-side circuitry (A1, A2); requires 0.1 µF bypass capacitor placed adjacent to pin. |
| A1 (Pin 4), A2 (Pin 5) | Side 1 digital inputs | Schmitt-trigger buffered inputs accepting 2.0–5.5 V logic; tolerate ±10 µA leakage and support fail-safe default-high behavior. |
| GND2 (Pins 9, 16) | Side 2 ground reference | Return path for VDD2-supplied logic; galvanically isolated from GND1; defines secondary-side common-mode plane. |
| VDD2 (Pin 14) | Side 2 secondary supply | Powers output-side circuitry (B1, B2); independent of VDD1; enables asymmetric supply configurations (e.g., 3.3 V input / 5 V output). |
| B1 (Pin 13), B2 (Pin 12) | Side 2 digital outputs | 50 Ω output drivers with VOH ≥ VDD2–0.4 V and VOL ≤ 0.4 V; compatible with controlled-impedance PCB routing for >50 Mbps signals. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced VDE 0884-10 certification | Enables single-component isolation in functional safety architectures (IEC 61800-5-2, ISO 26262 ASIL-B compliant systems). |
| Selectable fail-safe mode (T = default high) | Guarantees known output state (logic high) during VDD1 loss-critical for preventing unintended actuator activation in BMS and OBCs. |
| 60-year life at rated working voltage | Supports long-lifecycle deployments in infrastructure equipment (e.g., solar inverters, EV charging stations) without isolation degradation. |
| No start-up initialization required | Eliminates boot-time delays and firmware dependencies-output follows input within 40 µs of VDD stabilization. |
| Ultra-low power at 2.5 V | 3.4 mA total @ 1 Mbps enables always-on monitoring in low-power wake-up circuits without compromising responsiveness. |
Applications
| Battery Management Systems (BMS) | Onboard Chargers (OBC) |
|---|---|
Use Scenario: Isolating cell voltage monitoring ADCs and pack contactor control signals in 400–800 V EV battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator transmitting sampled analog front-end data and safety-critical relay commands across the main HV/LV barrier. Use Value: 5 kVRMS reinforced rating meets IEC 62619 requirements; 125 °C operation supports under-pack mounting; default-high fail-safe prevents contactor latch-up during MCU reset. |
Use Scenario: Signal isolation between AC/DC PFC controller and DC/DC LLC secondary-side feedback loop in bidirectional OBCs. IC Role / Device Role / Timing Role: Transmitting PWM enable/disable and voltage regulation error signals across isolation boundary with <14 ns delay. Use Value: 150 Mbps capability supports fast transient response; 60 kV/µs CMTI rejects switching noise from SiC MOSFETs; AEC-Q100 grade ensures reliability over 15-year vehicle lifetime. |
| Traction Inverters | Industrial Motor Drives |
Use Scenario: Isolating gate driver inputs for three-phase IGBT/SiC modules in electric axle drives. IC Role / Device Role / Timing Role: Delivering isolated PWM signals from inverter MCU to isolated gate driver ICs with matched channel skew ≤2.5 ns. Use Value: Tight propagation delay matching ensures balanced phase timing; reinforced insulation withstands 10 kV surge events per VDE 0884-10; operates continuously at 125 °C junction temperature. |
Use Scenario: Isolating encoder position feedback and current sense amplifier outputs in servo drives. IC Role / Device Role / Timing Role: Transmitting quadrature encoder pulses and isolated analog current measurements to motion controller with minimal jitter. Use Value: 350 ps peak eye diagram jitter preserves edge integrity at 10 MHz encoder rates; Schmitt inputs reject EMI from nearby IGBT switching; 2.5 V operation interfaces directly with low-voltage FPGAs. |
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 |
|---|---|---|---|
| ADUM220N1BRZ | 3.75 kVRMS basic isolation; 100 Mbps max; no AEC-Q100 qualification; SOIC-8 package. | Limited to non-automotive industrial use; insufficient for reinforced insulation requirements in EV traction systems. | Choose only for cost-sensitive, non-safety-critical 2.5–3.3 V systems where 5 kVRMS and automotive qualification are not required. |
| ISO7721FDWR | 5 kVRMS reinforced; 100 Mbps; 2.25–5.5 V; SOIC-8; no default-high fail-safe option. | Lacks configurable fail-safe output state-outputs float or go high-impedance during input-side power loss, requiring external pull-ups. | Select when board space is constrained and fail-safe behavior can be implemented externally; verify CMTI (85 kV/µs) suffices for target noise environment. |
Compared with ADUM220N1BRZ and ISO7721FDWR, SI8622BT-IS2 uniquely combines VDE-reinforced 5 kVRMS, AEC-Q100 qualification, default-high fail-safe, and 150 Mbps performance in a WB SOIC-16-making it the only drop-in solution for automotive-grade dual-channel isolation where safety, speed, and deterministic power-loss behavior are jointly mandated.
Availability
SI8622BT-IS2 is available at Aetrix Electronics and suitable for battery management systems, onboard chargers, traction inverters, and industrial motor drives requiring stable component supply across extended product lifecycles.
Supply support for SI8622BT-IS2 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 designed specifically for high-reliability, high-noise industrial and automotive isolation applications-emphasizing low power, precise timing, and safety-certified reinforced insulation without optical degradation mechanisms.
FAQ
What is the isolation rating and safety certification status of SI8622BT-IS2?
SI8622BT-IS2 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 safety-critical applications including EV battery systems and medical power supplies where double or reinforced insulation is mandated by end-equipment standards.
Does SI8622BT-IS2 support fail-safe operation, and how is it configured?
Yes, SI8622BT-IS2 has a fixed fail-safe mode defined by its part number: the "T" suffix indicates default-high output behavior. When VDD1 is unpowered but VDD2 remains active, both B1 and B2 outputs drive logic high. This eliminates need for external pull-up resistors in safety-critical shutdown sequences-for example, holding IGBT gate drivers enabled until system-level watchdog intervention occurs.
What are the supply voltage requirements and power consumption characteristics of SI8622BT-IS2?
SI8622BT-IS2 operates from 2.5 V to 5.5 V on both VDD1 and VDD2 sides independently. At 2.5 V and 1 Mbps, it draws 3.4 mA total (1.7 mA per channel); at 100 Mbps, consumption rises to 5.2 mA (2.6 mA per channel). Its ultra-low quiescent current enables integration into always-on monitoring circuits without thermal or battery-life penalties.
How does SI8622BT-IS2 achieve high noise immunity in electric vehicle applications?
SI8622BT-IS2 achieves ≥60 kV/µs common-mode transient immunity (CMTI) via RF-based on/off keying modulation and differential receiver architecture-rejecting fast transients induced by SiC/GaN switching in traction inverters and OBCs. Its Schmitt-trigger inputs further enhance noise rejection, ensuring reliable operation even with >1500 V common-mode slew rates across the isolation barrier.
Is SI8622BT-IS2 qualified for automotive use, and what does that entail?
Yes, SI8622BT-IS2 is AEC-Q100 qualified (Grade 1: –40 to +125 °C) and supported with AIAG-compliant PPAP documentation, IMDS/CAMDS listings, and automotive-specific manufacturing flow validation. This qualification confirms zero defects in high-temperature operating life testing and guarantees robustness against mechanical stress, thermal cycling, and voltage transients encountered in automotive powertrain and charging systems.
SI8622BT-IS2 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-IS2 FAQ
1.How can I place an order for SI8622BT-IS2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8622BT-IS2 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-IS2 reliable?
The price and inventory of SI8622BT-IS2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8622BT-IS2 is usually 5 days.
3.What payment methods are accepted for SI8622BT-IS2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8622BT-IS2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8622BT-IS2?
SI8622BT-IS2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8622BT-IS2 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-IS2?
For technical support, including SI8622BT-IS2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8622BT-IS2 requirements.
6.How does Aetrix verify that SI8622BT-IS2 is sourced from the original manufacturer or authorized distributors?
All SI8622BT-IS2 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-IS2 meets industry standards.
7.What is the process for return or replacement of SI8622BT-IS2?
All SI8622BT-IS2 units undergo pre-shipment inspection (PSI). If there is an issue with SI8622BT-IS2, 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-IS2 part is unused and in its original packaging.
Return procedure for SI8622BT-IS2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8622BT-IS2 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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