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Skyworks Solutions Inc. SI8620BT-IS2
- Part No.:
- SI8620BT-IS2
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8620BT-IS2.pdf
- Description:
- LOW-POWER SINGLE AND DUAL-CHANNE
- Quantity:
- Payment:
- Shipping:
Inventory:2,675
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Product details
Overview
SI8620BT-IS2 from Skyworks Solutions is a dual-channel, reinforced-isolation digital isolator in wide-body 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 high), and operates across –40 to 125 °C for use in battery management systems and isolated ADC interfaces.
For engineers reviewing the SI8620BT-IS2 datasheet, SI8620BT-IS2 pinout, SI8620BT-IS2 application, or SI8620BT-IS2 equivalent, key selection criteria include its 5 kVRMS reinforced VDE 0884-10 certification, dual-channel bidirectional capability, 2.5–5.5 V dual-supply operation, and automotive-grade AEC-Q100 qualification for traction inverter control and onboard charger signal isolation.
Technical Context
The SI8620BT-IS2 implements RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture delivers precise timing with ≤0.5 ns channel-channel skew and ≤2 ns propagation delay skew.
It integrates independent undervoltage lockout (UVLO) monitors per side (VDD1/VDD2), with UVLO+ = 2.24 V (typ) and hysteresis of 70 mV (typ), ensuring deterministic fail-safe behavior during power transitions. The device supports fail-safe default-high output via ordering option and maintains stable performance over temperature and lifetime.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial communication in motor control gate drivers and isolated SPI interfaces. |
| Propagation delay | 5.0–14 ns - enables tight timing budgets in real-time feedback loops for inverters and power supplies. |
| Isolation rating | 5 kVRMS reinforced - certified to VDE 0884-10 and UL 1577, suitable for mains-connected industrial and automotive safety barriers. |
| Supply voltage | 2.5–5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level shifting. |
| Channel-channel skew | ≤2.5 ns - ensures matched timing between dual channels for differential signaling or redundant sensing paths. |
| CMTI | ≥60 kV/µs - suppresses false triggering in high-dv/dt environments like IGBT/SiC gate drive circuits. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive and industrial ambient conditions without derating. |
Pinout & Package
SI8620BT-IS2 is housed in a WB SOIC-16 package (wide-body, 10.3 mm creepage/clearance), optimized for reinforced insulation. Pin assignments are validated per Skyworks DS 206328B Section 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND1 (Pins 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 supply | Power for input-side circuitry; accepts 2.5–5.5 V; UVLO threshold 2.24 V (typ). |
| A1 (Pin 4) | Side 1 digital I/O | Primary input/output channel; Schmitt-triggered for noise immunity; compatible with CMOS/TTL levels. |
| A2 (Pin 5) | Side 1 digital I/O | Secondary input/output channel on same side; electrically isolated from A1 but shares GND1/VDD1. |
| GND2 (Pins 9, 16) | Side 2 ground reference | Return path for output-side logic; galvanically isolated from GND1; requires separate 0.1 µF bypass at Pin 14. |
| VDD2 (Pin 14) | Side 2 supply | Power for output-side circuitry; independent UVLO monitoring ensures fail-safe behavior when VDD1 fails. |
| B1 (Pin 13) | Side 2 digital I/O | Corresponding output channel to A1; default-high fail-safe state active when VDD1 unpowered. |
| B2 (Pin 12) | Side 2 digital I/O | Corresponding output channel to A2; matches B1 timing characteristics (skew ≤2.5 ns). |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced VDE 0884-10 certification | Validated for 5 kVRMS working voltage and 10 kV surge immunity - eliminates need for external transient protection in EV charging systems. |
| Selectably fail-safe (default high) | Output remains logic high during VDD1 loss while VDD2 is powered - critical for safe shutdown signaling in BMS fault detection. |
| Ultra-low power at 100 Mbps | 5.5 mA per channel at 5 V - reduces thermal load in densely packed inverters and enables smaller heatsinks. |
| Schmitt-trigger inputs | Hysteresis of 0.44 V (typ) - rejects >100 mV noise spikes common in motor drive PCBs without external filtering. |
| 60-year life at rated voltage | Proven reliability under continuous 5 kVRMS stress - supports 15+ year service life in industrial UPS and solar inverters. |
Applications
| Battery Management Systems | Isolated ADC Interfaces |
|---|---|
Use Scenario: Signal isolation between MCU and cell monitor ICs in high-voltage EV battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator transmitting voltage/current sampling clocks and data across 400–800 V barriers. Use Value: 5 kVRMS reinforced rating meets IEC 62109 and ISO 6469 requirements; ≤2.5 ns skew preserves sampling phase alignment. |
Use Scenario: Isolating serial interface (SPI) between precision ADC and host processor in medical imaging power supplies. IC Role / Device Role / Timing Role: Bidirectional data isolator carrying clock, CS, and data lines while blocking ground loops. Use Value: 150 Mbps capability supports oversampled 24-bit ADCs; CMTI ≥60 kV/µs prevents corruption during EMI events. |
| Traction Inverters | Onboard Chargers |
Use Scenario: Gate driver signal isolation for SiC MOSFET half-bridges in electric vehicle traction inverters. IC Role / Device Role / Timing Role: Dual-channel isolator delivering PWM signals with matched propagation delay to upper/lower switches. Use Value: <10 ns propagation delay and ≤2.5 ns skew enable <100 ns dead-time control; AEC-Q100 Grade 1 qualification ensures automotive reliability. |
Use Scenario: Isolating control signals between AC/DC and DC/DC stages in bidirectional EV onboard chargers. IC Role / Device Role / Timing Role: Level-shifting and noise-immune transmission of enable, fault, and status signals across isolation boundaries. Use Value: Fail-safe default-high output asserts "disable" on primary-side power loss; 2.5–5.5 V supply range simplifies auxiliary rail design. |
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; SOIC-16WB not available; max data rate 10 Mbps. | Limited to non-safety-critical industrial automation; insufficient for automotive reinforced insulation requirements. | Choose only for cost-sensitive, low-speed, non-automotive designs where 5 kVRMS is not mandated. |
| ISO7721FDWR | 5 kVRMS reinforced; SOIC-16WB available; max data rate 100 Mbps; no AEC-Q100 qualification. | Acceptable for industrial inverters but lacks automotive qualification for traction systems or OBCs requiring PPAP support. | Select when automotive qualification is unnecessary and 100 Mbps suffices; verify CMTI (85 kV/µs) meets system dv/dt demands. |
Compared with ADUM2201BRWZ and ISO7721FDWR, SI8620BT-IS2 uniquely combines 150 Mbps speed, AEC-Q100 Grade 1, and VDE-reinforced 5 kVRMS in one SOIC-16WB package-enabling single-part qualification across EV traction, charging, and industrial high-voltage systems.
Availability
SI8620BT-IS2 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, onboard chargers, isolated ADC interfaces, and industrial motor control requiring stable component supply with long-term lifecycle assurance.
Supply support for SI8620BT-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 provider of analog and mixed-signal semiconductors, specializing in RF, timing, and isolation technologies for high-reliability applications.
The Si86xx family was designed specifically for safety-critical isolation in automotive electrification and industrial power systems, emphasizing reinforced certification, ultra-low power, and precise timing stability across temperature.
FAQ
What isolation rating and certification does SI8620BT-IS2 support?
SI8620BT-IS2 provides 5 kVRMS reinforced isolation, certified to VDE 0884-10 (reinforced), UL 1577 (5000 VRMS), CSA IEC 62368-1, and CQC GB4943.1. It is explicitly qualified for reinforced insulation per VDE standards, making it suitable for functional safety applications in EV battery systems and industrial inverters where basic isolation is insufficient.
Does SI8620BT-IS2 require external components for stable operation?
Yes, SI8620BT-IS2 requires a 0.1 µF ceramic bypass capacitor between VDD1 and GND1, and another between VDD2 and GND2, placed as close as possible to the respective pins. No pull-up/pull-down resistors are needed-the device includes internal fail-safe biasing. External series resistors (50–300 Ω) are optional for extreme-noise environments but not required for standard operation.
How does the fail-safe mode function on SI8620BT-IS2?
SI8620BT-IS2 is configured as default-high fail-safe: when VDD1 is unpowered but VDD2 remains active, outputs B1 and B2 remain logic high. This behavior is fixed by the "T" suffix in the part number and enables safe shutdown signaling-for example, holding an inverter gate driver disabled during MCU power loss. The state returns to normal within 1 µs after VDD1 stabilizes.
What is the maximum data rate and timing precision of SI8620BT-IS2?
SI8620BT-IS2 supports up to 150 Mbps data rate with typical propagation delay of 8.0 ns, pulse width distortion of 0.2 ns, and channel-channel skew of 0.5 ns. These values are guaranteed over –40 to 125 °C and enable precise synchronization in high-frequency motor control loops and isolated high-speed serial links such as SPI and RS-485 transceiver interfaces.
Is SI8620BT-IS2 qualified for automotive applications?
Yes, SI8620BT-IS2 is AEC-Q100 qualified (Grade 1, –40 to 125 °C) and supports AIAG-compliant PPAP documentation and IMDS/CAMDS reporting. It is designated for automotive-grade use in onboard chargers, battery management systems, and traction inverters-meeting the robustness and low-defectivity requirements of automotive electronics manufacturing.
SI8620BT-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:
- 2/0
- 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
SI8620BT-IS2 FAQ
1.How can I place an order for SI8620BT-IS2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8620BT-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 SI8620BT-IS2 reliable?
The price and inventory of SI8620BT-IS2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8620BT-IS2 is usually 5 days.
3.What payment methods are accepted for SI8620BT-IS2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8620BT-IS2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8620BT-IS2?
SI8620BT-IS2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8620BT-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 SI8620BT-IS2?
For technical support, including SI8620BT-IS2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8620BT-IS2 requirements.
6.How does Aetrix verify that SI8620BT-IS2 is sourced from the original manufacturer or authorized distributors?
All SI8620BT-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 SI8620BT-IS2 meets industry standards.
7.What is the process for return or replacement of SI8620BT-IS2?
All SI8620BT-IS2 units undergo pre-shipment inspection (PSI). If there is an issue with SI8620BT-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 SI8620BT-IS2 part is unused and in its original packaging.
Return procedure for SI8620BT-IS2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8620BT-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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