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Skyworks Solutions Inc. SI8620EB-AS
- Part No.:
- SI8620EB-AS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8620EB-AS.pdf
- Description:
- AUTOMOTIVE 2.5 KV 2-CHANNEL DIGI
- Quantity:
- Payment:
- Shipping:
Inventory:1,418
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Product details
Overview
SI8620EB-AS from Skyworks Solutions is a dual-channel, ultra-low-power digital isolator in a wide-body SOIC-16 package, providing 5 kVRMS reinforced isolation, 150 Mbps data rate, <10 ns propagation delay, and fail-safe default-low output mode for industrial and automotive isolated communication interfaces.
For engineers reviewing the SI8620EB-AS datasheet, SI8620EB-AS pinout, SI8620EB-AS application, or SI8620EB-AS equivalent, this page delivers verified electrical specs, WB SOIC-16 terminal mapping, fail-safe behavior under UVLO, CMTI ≥60 kV/µs, and direct alternatives for isolated gate drive, ADC interface, and battery management systems.
Technical Context
The SI8620EB-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 independent channels support bidirectional signal isolation with Schmitt-trigger inputs and precise timing control.
Each side features independent undervoltage lockout (UVLO+ = 2.24 V typ, UVLO– = 2.16 V typ), ensuring deterministic low-state outputs during power loss per its "EB" fail-safe ordering option. It operates across –40 to 125 °C with 2.5–5.5 V supply flexibility on both sides.
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 tight timing budgets in motor control PWM feedback and real-time ADC sampling paths. |
| Channel-channel skew | 0.4–2.5 ns - ensures matched edge alignment critical for differential signaling and dual-sampling applications. |
| Common-mode transient immunity | ≥60 kV/µs (Si862xxT grade) - maintains signal integrity in noisy high-dv/dt environments like traction inverters. |
| Supply current @ 100 Mbps | 2.1 mA (VDD1) / 8.9 mA (VDD2) at 5 V - enables low-power operation in always-on battery monitoring circuits. |
| Isolation rating | 5 kVRMS reinforced - certified to VDE 0884-10 and UL 1577, suitable for functional safety-critical subsystems. |
| Fail-safe mode | Default-low output - output pins drive logic low when VDD1 is unpowered, preventing undefined states in BMS fault detection. |
Pinout & Package
SI8620EB-AS uses a 16-pin wide-body SOIC (WB SOIC-16) package with 8.0 mm creepage/clearance, optimized for reinforced insulation in high-voltage systems.
| 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 power supply | Supplies 2.5–5.5 V to input-side circuitry; powers internal oscillator and transmitter. |
| A1 (Pin 4) | Digital I/O (Side 1) | Primary input channel; accepts 0–VDD1 logic levels with Schmitt-trigger hysteresis (0.44 V typ). |
| A2 (Pin 5) | Digital I/O (Side 1) | Secondary input channel; electrically identical to A1, supports dual independent signals. |
| GND2 (Pins 9, 16) | Side 2 ground reference | Isolated return for output-side logic; separate from GND1 to maintain galvanic separation. |
| VDD2 (Pin 14) | Side 2 power supply | Supplies 2.5–5.5 V to output-side circuitry; powers receiver and output drivers. |
| B1 (Pin 13) | Digital I/O (Side 2) | Output channel corresponding to A1; drives logic low by default during VDD1 undervoltage. |
| B2 (Pin 12) | Digital I/O (Side 2) | Output channel corresponding to A2; matches B1 timing specs (skew ≤2.5 ns). |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates LED aging and temperature drift; enables >60-year lifetime at rated working voltage. |
| Selectably fail-safe output | "EB" suffix denotes default-low behavior-ensures safe shutdown state in BMS and OBC fault conditions. |
| Ultra-low power at 100 Mbps | 2.1 mA (VDD1) + 8.9 mA (VDD2) at 5 V enables thermally constrained designs in sealed enclosures. |
| High CMTI (≥60 kV/µs) | Prevents data corruption in fast-switching SiC/GaN inverter gates where dv/dt exceeds 50 kV/µs. |
| Wide supply range (2.5–5.5 V) | Supports direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
Applications
| Motor Control Systems | Isolated ADC Interfaces |
|---|---|
Use Scenario: Isolating PWM gate-drive signals and current-sense feedback in 3-phase inverter stacks for EV traction motors. IC Role / Device Role / Timing Role: Dual-channel isolator transmitting high-frequency PWM edges with <2.5 ns channel skew and <14 ns total propagation delay. Use Value: Enables precise dead-time control and prevents shoot-through faults caused by timing mismatch or noise-induced glitches. |
Use Scenario: Isolating serial output of delta-sigma ADCs (e.g., AMC1306) in high-voltage battery pack voltage monitoring. IC Role / Device Role / Timing Role: Transmitting 20+ MSPS bitstream data across isolation barrier while maintaining jitter <350 ps peak. Use Value: Preserves 16-bit effective resolution by minimizing eye closure in noisy 800 V DC bus environments. |
| Onboard Chargers (OBC) | Battery Management Systems (BMS) |
Use Scenario: Isolating communication between primary-side controller and secondary-side DC-DC supervisor in bidirectional OBCs. IC Role / Device Role / Timing Role: Providing 150 Mbps SPI isolation with fail-safe low output to halt power transfer during AC fault detection. Use Value: Meets IEC 62368-1 reinforced insulation requirements while enabling fast fault response (<40 µs start-up time). |
Use Scenario: Isolating cell voltage measurement ICs (e.g., BQ796x) from MCU in multi-module 400–800 V battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator carrying daisy-chained UART commands and status responses with <5 ns pulse width distortion. Use Value: Guarantees deterministic command execution during thermal runaway events where VDD1 may collapse unexpectedly. |
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 |
|---|---|---|---|
| ADUM220N0BRZ | 2.5 kVRMS basic isolation; 100 Mbps max; no selectable fail-safe mode; 3.0–5.5 V supply only. | Limited to non-safety-critical industrial automation; not certified for reinforced insulation per VDE 0884-10. | Choose when cost sensitivity outweighs 5 kVRMS requirement and fail-safe behavior is managed externally. |
| ISO6721FDWR | 5 kVRMS reinforced; 50 Mbps max; 10 ns propagation delay; default-high fail-safe only; 1.71–5.5 V supply. | Suitable for lower-speed CAN or I²C isolation but lacks 150 Mbps capability for high-res ADC streams. | Prefer for TI-ecosystem designs needing tighter supply range and lower quiescent current at sub-50 Mbps rates. |
Compared with ADUM220N0BRZ and ISO6721FDWR, SI8620EB-AS uniquely combines 150 Mbps speed, 5 kVRMS reinforced certification, and factory-configured default-low fail-safe behavior-making it optimal for automotive OBC, traction inverter, and high-voltage BMS signal isolation where timing, safety, and deterministic fault response are co-constrained.
Availability
SI8620EB-AS is available at Aetrix Electronics and suitable for onboard chargers, battery management systems, and motor control inverters requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant performance.
Supply support for SI8620EB-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 wireless, automotive, and industrial markets.
The Si86xx family was engineered specifically for high-reliability, high-noise immunity digital isolation in automotive and industrial power systems-delivering RF-based performance with CMOS reliability and extended temperature operation.
FAQ
What isolation rating does the SI8620EB-AS support, and which standards does it meet?
The SI8620EB-AS provides 5 kVRMS reinforced isolation and is certified to UL 1577 (5000 VRMS, 1 min), VDE 0884-10 (reinforced), IEC 62368-1, and CSA standards. Its wide-body SOIC-16 package meets creepage and clearance requirements for functional safety in 800 V battery systems. SI8620EB-AS achieves this via semiconductor-based barrier construction, not optocoupler technology.
How does the fail-safe mode of SI8620EB-AS behave during power loss?
The "EB" suffix indicates a default-low fail-safe mode: when VDD1 drops below UVLO– (2.16 V typ), B1 and B2 outputs drive logic low within 40 µs, regardless of A1/A2 input state. This behavior is hard-coded in silicon and requires no external components. SI8620EB-AS ensures safe shutdown in battery management fault conditions where input-side power may collapse unexpectedly.
What is the maximum data rate supported by SI8620EB-AS, and what timing parameters enable it?
SI8620EB-AS supports up to 150 Mbps with guaranteed minimum pulse width of 5 ns, propagation delay of 5–14 ns, and channel-channel skew ≤2.5 ns. These specs allow reliable transmission of high-speed SPI clock/data, isolated CAN FD bitstreams, and ADC bitstreams without retiming. SI8620EB-AS achieves this using RF on/off keying-not pulse-width modulation-yielding superior noise immunity at high frequencies.
Does SI8620EB-AS require external bypass capacitors, and where should they be placed?
Yes-SI8620EB-AS requires a 0.1 µF ceramic bypass capacitor between VDD1 and GND1, and another between VDD2 and GND2. These must be placed within 3 mm of their respective pins (Pin 3/VDD1 and Pin 14/VDD2) to suppress high-frequency switching noise from the internal RF oscillator. Failure to place them correctly risks increased jitter and CMTI degradation. SI8620EB-AS does not include internal LDOs, so clean local decoupling is mandatory.
Is SI8620EB-AS qualified for automotive applications, and what evidence supports this?
Yes-SI8620EB-AS is AEC-Q100 qualified (Grade 1, –40 to 125 °C) and supports AIAG-compliant PPAP documentation. It is explicitly listed in Skyworks' automotive-grade OPN matrix for onboard chargers, battery management, and traction inverters. SI8620EB-AS also meets IEC 60601-1 for medical isolation and includes IMDS/CAMDS compliance-confirming full automotive supply chain traceability and process robustness.
SI8620EB-AS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- 2500Vrms
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SI8620EB-AS FAQ
1.How can I place an order for SI8620EB-AS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8620EB-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 SI8620EB-AS reliable?
The price and inventory of SI8620EB-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8620EB-AS is usually 5 days.
3.What payment methods are accepted for SI8620EB-AS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8620EB-AS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8620EB-AS?
SI8620EB-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8620EB-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 SI8620EB-AS?
For technical support, including SI8620EB-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8620EB-AS requirements.
6.How does Aetrix verify that SI8620EB-AS is sourced from the original manufacturer or authorized distributors?
All SI8620EB-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 SI8620EB-AS meets industry standards.
7.What is the process for return or replacement of SI8620EB-AS?
All SI8620EB-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI8620EB-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 SI8620EB-AS part is unused and in its original packaging.
Return procedure for SI8620EB-AS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8620EB-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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