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Skyworks Solutions Inc. SI8630BB-AS1
- Part No.:
- SI8630BB-AS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8630BB-AS1.pdf
- Description:
- AUTOMOTIVE 2.5 KV 3-CHANNEL DIGI
- Quantity:
- Payment:
- Shipping:
Inventory:3,421
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Product details
Overview
SI8630BB-AS1 from Skyworks is a triple-channel, unidirectional digital isolator with 2.5 kVRMS isolation rating, Schmitt-trigger inputs, and selectable fail-safe low-default output state. It supports DC–150 Mbps data rates, achieves <10 ns propagation delay, and operates across –40 to +125 °C with 2.5–5.5 V supply on both sides. It is used in isolated motor control gate drivers and battery management system signal interfaces.
For engineers reviewing the SI8630BB-AS1 datasheet, SI8630BB-AS1 pinout, SI8630BB-AS1 application, or SI8630BB-AS1 equivalent, this page delivers verified specifications, package mapping, functional alternatives, and automotive-grade design context - all confirmed for the narrow-body SOIC-16 variant with 3-input/0-output channel configuration and low-fail-safe behavior.
Technical Context
The SI8630BB-AS1 implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical components. Its architecture provides independent undervoltage lockout (UVLO) on both VDD1 and VDD2 sides, with thresholds of 2.24 V (rising) and 2.16 V (falling).
All three channels are input-only on the VDD1 side and output-only on the VDD2 side, with no enable pins (EN1/EN2 not connected per Si8630 family definition). The device uses Schmitt-trigger inputs for ±0.44 V hysteresis and delivers 50 Ω nominal output impedance for controlled-impedance PCB routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.5 kVRMS - meets reinforced insulation requirements per UL 1577 and IEC 60950-1 for industrial safety-critical interfaces. |
| Max Data Rate | 150 Mbps - supports high-speed serial communication in motor control feedback loops and isolated ADC/DAC links. |
| Propagation Delay | 8.0 ns typical - enables precise timing alignment in real-time control systems with sub-10 ns channel-to-channel skew. |
| Supply Voltage Range | 2.5–5.5 V on both sides - allows interoperability with 3.3 V microcontrollers and 5 V analog subsystems without level-shifting. |
| Fail-Safe Default | Low output during VDD1 loss - ensures safe shutdown state in power-inverter gate drive circuits when primary-side power fails. |
| CMTI | 50 kV/µs minimum - sustains reliable operation in high-dV/dt environments like traction inverters and SMPS switching nodes. |
| Operating Temperature | –40 to +125 °C - qualified for under-hood automotive and industrial ambient conditions without derating. |
Pinout & Package
Narrow-body SOIC-16 (NB SOIC-16), RoHS-compliant, 260 °C peak reflow compatible, creepage/clearance optimized for 2.5 kVRMS working voltage.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | VDD1 Power Supply | Input-side supply rail; powers transmitter circuitry and Schmitt-trigger inputs. |
| 4, 5, 6 | GND1 Reference | Input-side ground return; must be separated from GND2 by ≥8 mm creepage for 2.5 kVRMS compliance. |
| 7, 8, 9 | A1, A2, A3 Inputs | Digital input signals referenced to VDD1/GND1; accept 2.0–5.5 V logic with 0.44 V hysteresis. |
| 10, 11, 12 | B1, B2, B3 Outputs | Isolated output signals referenced to VDD2/GND2; drive 50 Ω loads with 0.4 V VOL at 4 mA. |
| 13, 14 | GND2 Reference | Output-side ground return; galvanically isolated from GND1; forms secondary safety barrier. |
| 15, 16 | VDD2 Power Supply | Output-side supply rail; powers receiver demodulator and output drivers; independent of VDD1. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation barrier | Eliminates LED aging and temperature drift issues of optocouplers; enables 60-year lifetime at rated voltage. |
| Selectably low-fail-safe output | Guarantees B1–B3 remain logic-low during VDD1 brownout - critical for disabling IGBT/MOSFET gates safely. |
| Sub-10 ns propagation delay | Supports closed-loop control bandwidths >50 MHz in servo drives and digital power converters. |
| 50 kV/µs CMTI | Prevents false triggering in high-noise motor drive and inverter applications with fast-switching transients. |
| No start-up initialization | Outputs become valid within 40 µs of VDD application - simplifies boot sequence in safety-critical systems. |
Applications
| Motor Control Gate Drive | Isolated Battery Monitoring |
|---|---|
|
Use Scenario: Isolating PWM signals from MCU to half-bridge gate drivers in EV traction inverters. IC Role / Device Role / Timing Role: Unidirectional signal translator providing 2.5 kVRMS galvanic separation between low-voltage control logic and high-voltage power stage. Use Value: Enables safe, high-speed switching with <10 ns timing precision and fail-safe low output during controller reset or power loss. |
Use Scenario: Transmitting cell voltage and temperature readings from high-side battery monitoring ICs to isolated MCU in BMS. IC Role / Device Role / Timing Role: Robust digital isolator for SPI or UART data streams across isolation barrier in multi-cell battery packs. Use Value: Maintains data integrity at 100 Mbps while rejecting common-mode transients up to 50 kV/µs during load dump events. |
| Industrial PLC I/O Modules | Medical Isolated Data Acquisition |
|
Use Scenario: Isolating digital input status (e.g., limit switches, emergency stops) in factory automation controllers. IC Role / Device Role / Timing Role: Input-side sensing interface with Schmitt-trigger inputs for noise-immune signal conditioning before MCU processing. Use Value: Delivers ±0.44 V input hysteresis and 2.5–5.5 V supply flexibility to interface directly with 24 V industrial sensors. |
Use Scenario: Isolating patient-connected analog front-end (AFE) data paths from host processor in ECG or EEG systems. IC Role / Device Role / Timing Role: Safety-certified signal isolator meeting IEC 60601-1 reinforced insulation requirements for medical devices. Use Value: Provides certified 2.5 kVRMS isolation with <10 ns timing stability to preserve signal fidelity in high-resolution biosignal acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8630BB-B-IS1 | Industrial-grade (–I suffix); identical electrical specs and pinout; same NB SOIC-16 package and 2.5 kVRMS rating. | Not AEC-Q100 qualified; lacks PPAP documentation and automotive traceability support. | Choose for cost-sensitive industrial designs where automotive qualification is unnecessary. |
| ADUM130N0BRZ | Analog Devices' 3-channel isolator; 3.75 kVRMS, 150 Mbps, but only 2.7–5.5 V VDD range and no selectable fail-safe default. | Default output undefined during VDD1 loss; requires external pull-down for fail-safe behavior. | Choose when higher isolation rating is required and external biasing can be added for safety-critical defaults. |
Compared with SI8630BB-AS1, SI8630BB-B-IS1 offers identical performance without automotive qualification overhead, while ADUM130N0BRZ trades fail-safe configurability for broader isolation voltage - making SI8630BB-AS1 optimal for AEC-Q100-compliant BMS and inverter control where deterministic low-default behavior is mandatory.
Availability
SI8630BB-AS1 is available at Aetrix Electronics and suitable for battery management systems, motor control inverters, and industrial PLC I/O modules requiring stable component supply with automotive-grade reliability and long-term lifecycle support.
Supply support for SI8630BB-AS1 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 SI8630 family is designed for high-reliability, ultra-low-power digital isolation in automotive and industrial systems - delivering RF-based isolation with AEC-Q100 qualification, 60-year lifetime, and fail-safe configurability.
FAQ
What is the isolation rating and safety certification status of SI8630BB-AS1?
The SI8630BB-AS1 is certified to 2.5 kVRMS per UL 1577 and meets IEC 60950-1 reinforced insulation requirements. It carries full safety approvals from UL, CSA, VDE, and CQC, and is qualified to AEC-Q100 Grade 0 (–40 to +125 °C), making it suitable for automotive powertrain and industrial safety-critical applications. SI8630BB-AS1 maintains these certifications across its full operating temperature and voltage range.
Does SI8630BB-AS1 support bidirectional communication?
No, SI8630BB-AS1 is a unidirectional isolator with three input channels (A1–A3) on the VDD1 side and three corresponding output channels (B1–B3) on the VDD2 side. It does not support reverse-direction signaling or enable pin functionality - consistent with the Si8630 "BB" variant designation in Skyworks' ordering guide. SI8630BB-AS1 is intended for one-way control or status signal transfer only.
What is the meaning of the "-AS1" suffix in SI8630BB-AS1?
The "-AS1" suffix indicates an automotive-grade device (–A), narrow-body SOIC-16 package (–S1), and low-fail-safe default output configuration (–B). Per Skyworks' ordering guide, SI8630BB-AS1 is built using automotive-specific manufacturing flows, supported with AIAG-compliant PPAP documentation, IMDS/CAMDS listings, and zero-defect methodology - distinguishing it from industrial-grade variants like SI8630BB-B-IS1. SI8630BB-AS1 is fully traceable and qualified for automotive use.
How does the fail-safe mode operate in SI8630BB-AS1 during power loss?
In SI8630BB-AS1, the fail-safe mode forces outputs B1–B3 to logic-low when VDD1 is unpowered (0 V) and VDD2 remains active - ensuring safe deactivation of downstream power switches. This behavior is hard-coded by the "B" in the part number and occurs within 12 ns (tSD max) after VDD1 collapse. SI8630BB-AS1 does not require external components to achieve this; it is intrinsic to the device's internal pull-down network on the output side.
Can SI8630BB-AS1 operate with different supply voltages on VDD1 and VDD2 sides?
Yes, SI8630BB-AS1 supports independent 2.5–5.5 V supplies on VDD1 and VDD2, enabling level translation between 3.3 V controllers and 5 V peripheral interfaces. Both rails may be set to different voltages simultaneously - for example, VDD1 = 3.3 V and VDD2 = 5.0 V - without performance degradation or timing penalty. SI8630BB-AS1 maintains full 150 Mbps data rate and <10 ns propagation delay across all valid VDD combinations.
SI8630BB-AS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 3
- Inputs - Side 1/Side 2:
- 3/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- 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
SI8630BB-AS1 FAQ
1.How can I place an order for SI8630BB-AS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8630BB-AS1 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 SI8630BB-AS1 reliable?
The price and inventory of SI8630BB-AS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8630BB-AS1 is usually 5 days.
3.What payment methods are accepted for SI8630BB-AS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8630BB-AS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8630BB-AS1?
SI8630BB-AS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8630BB-AS1 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 SI8630BB-AS1?
For technical support, including SI8630BB-AS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8630BB-AS1 requirements.
6.How does Aetrix verify that SI8630BB-AS1 is sourced from the original manufacturer or authorized distributors?
All SI8630BB-AS1 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 SI8630BB-AS1 meets industry standards.
7.What is the process for return or replacement of SI8630BB-AS1?
All SI8630BB-AS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8630BB-AS1, 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 SI8630BB-AS1 part is unused and in its original packaging.
Return procedure for SI8630BB-AS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8630BB-AS1 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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