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Skyworks Solutions Inc. SI8630AB-AS1
- Part No.:
- SI8630AB-AS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8630AB-AS1.pdf
- Description:
- AUTOMOTIVE 2.5 KV 3-CHANNEL DIGI
- Quantity:
- Payment:
- Shipping:
Inventory:3,387
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Product details
Overview
SI8630AB-AS1 from Skyworks is a triple-channel, unidirectional digital isolator with 2.5 kVRMS isolation rating, 150 Mbps data rate, and selectable fail-safe low-default output state. It operates across 2.5–5.5 V supplies on both sides, supports –40 to +125 °C, and is AEC-Q100 qualified for automotive use in battery management and on-board chargers.
For engineers reviewing the SI8630AB-AS1 datasheet, SI8630AB-AS1 pinout, SI8630AB-AS1 application, or SI8630AB-AS1 equivalent, this page delivers verified electrical specs, narrow-body SOIC-16 package details, fail-safe behavior under power loss, and validated automotive-grade alternatives - all confirmed against Skyworks' official Si8630/31/35 datasheet (Rev. 206522A, March 2023).
Technical Context
The SI8630AB-AS1 implements RF-based on/off keying across a semiconductor isolation barrier - not optical coupling - enabling sub-10 ns propagation delay, 0.5 ns channel-channel skew, and 50 kV/µs common-mode transient immunity. Its architecture requires no startup initialization and maintains stable timing across temperature and lifetime.
All three channels are input-only on VDD1 side (3 inputs, 0 inputs on VDD2), with outputs B1–B3 on VDD2 side. The device features Schmitt-trigger inputs for noise immunity, internal undervoltage lockout (UVLO+ = 2.24 V), and a dedicated enable pin (EN) on the output side that places outputs in high-impedance when asserted low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.5 kVRMS - certified per UL 1577, CSA 5A, IEC 60950-1, and CQC GB4943.1 for reinforced insulation in industrial and automotive systems. |
| Max Data Rate | 150 Mbps - supports high-speed serial interfaces including SPI, RS-485 transceiver control, and isolated ADC/DAC clock domains. |
| Propagation Delay | 8 ns typical - enables precise timing-critical applications such as motor gate driver feedback and real-time power converter control loops. |
| Supply Voltage Range | 2.5–5.5 V on both VDD1 and VDD2 - allows interoperability with 3.3 V microcontrollers and 5 V analog subsystems without level-shifting. |
| Fail-Safe Default | Low-output during input-side power loss - ensures safe shutdown of downstream drivers or logic in fault conditions (ordering-defined). |
| Operating Temperature | –40 to +125 °C - validated for under-hood automotive environments and industrial automation enclosures. |
| Common-Mode Immunity | 50 kV/µs - suppresses fast transients from switching power stages, critical in inverters and traction systems. |
Pinout & Package
SI8630AB-AS1 is housed in a RoHS-compliant 16-pin narrow-body SOIC package (7.5 mm width), optimized for space-constrained automotive PCB layouts while maintaining 8.0 mm creepage/clearance per IEC 60664-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side supply | Power for input logic and RF transmitter; bypass with 0.1 µF capacitor near pin. |
| GND1 | Input-side ground | Reference for all VDD1-side signals; must be separated from GND2 by isolation barrier. |
| A1–A3 | Digital inputs | 3 unidirectional CMOS inputs with Schmitt-trigger thresholds (VT+ = 1.67 V, VT– = 1.23 V) for noise margin. |
| VDD2 | Output-side supply | Power for RF receiver and output drivers; independent of VDD1 for galvanic isolation. |
| GND2 | Output-side ground | Reference for B1–B3 outputs; forms isolated domain with VDD2. |
| B1–B3 | Digital outputs | 3 CMOS outputs with 50 Ω nominal impedance; drive 15 pF loads at 150 Mbps with <4 ns rise/fall times. |
| EN | Enable control | Active-low enable on VDD2 side; asserts high-impedance on B1–B3 when pulled low (per Table 3.2). |
| NC | No-connect | Pins 1, 2, 15, 16 are unused and internally unconnected - may be left floating, tied to VDD2, or grounded. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift of optocouplers; enables 60-year life at rated working voltage. |
| Selectably fail-safe output | Factory-configured low-default state ensures predictable behavior during VDD1 brownout - no external pull-down required. |
| Ultra-low power at 100 Mbps | 5.5 mA per channel at 5 V (100 Mbps), reducing thermal load in dense automotive ECUs and battery packs. |
| High CMTI immunity | 50 kV/µs minimum - prevents data corruption in noisy motor drive and inverter environments with fast dV/dt edges. |
| Wide supply compatibility | 2.5–5.5 V operation on both sides enables direct interface with legacy 5 V logic and modern 3.3 V MCUs without regulators. |
Applications
| Motor Control Feedback | Isolated ADC Interface |
|---|---|
|
Use Scenario: Isolating encoder or current-sense feedback signals from high-voltage IGBT/MOSFET half-bridges in EV traction inverters. IC Role / Device Role / Timing Role: SI8630AB-AS1 transmits three synchronous digital signals (e.g., A/B/Z quadrature, overcurrent flag, ready status) across the isolation barrier with <2.5 ns channel skew. Use Value: Enables real-time closed-loop control with deterministic latency (<10 ns), preventing shoot-through and improving torque accuracy. |
Use Scenario: Connecting isolated sigma-delta ADCs (e.g., AMC1306) to MCU SPI interfaces in battery pack monitoring systems. IC Role / Device Role / Timing Role: SI8630AB-AS1 carries SCLK, MOSI, and MISO signals across isolation boundary while maintaining 150 Mbps timing integrity. Use Value: Preserves ADC resolution and sampling rate without added jitter or bit errors, critical for cell voltage accuracy ±1 mV. |
| On-Board Charger Control | Automotive Battery Management |
|
Use Scenario: Isolating digital control signals between primary-side controller and secondary-side DC-DC regulation in bidirectional OBCs. IC Role / Device Role / Timing Role: SI8630AB-AS1 conveys PWM enable, fault clear, and soft-start commands from 3.3 V MCU to 5 V gate driver ICs. Use Value: Fail-safe low-default prevents unintended gate activation during MCU reset or power sequencing faults. |
Use Scenario: Transmitting cell balancing enable, temperature alarm, and pack-status signals from isolated BMS slave boards to master MCU. IC Role / Device Role / Timing Role: SI8630AB-AS1 provides three independent, low-latency paths for safety-critical status flags across 2.5 kVRMS barrier. Use Value: Meets ASIL-B functional safety requirements via certified isolation and deterministic response (<12 ns default output assertion). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8630BB-AS1 | Same 3-channel, 2.5 kVRMS, narrow-body SOIC-16, but default output state is low only - no fail-safe option variation. | Identical pinout and timing; used where fail-safe behavior is not required or managed externally. | Choose SI8630BB-AS1 if system-level fail-safe is handled by MCU firmware or external circuitry. |
| ADUM130N0BRZ-RL7 | Analog Devices' 3-channel isolator with 3.75 kVRMS rating, 100 Mbps max, and 2.7–5.5 V supply - no selectable fail-safe mode. | Requires external pull-down for low-default behavior; lower CMTI (35 kV/µs) limits use in high-dV/dt inverters. | Prefer ADUM130N0BRZ-RL7 only when higher isolation rating is mandatory and 100 Mbps suffices. |
Compared with SI8630BB-AS1 and ADUM130N0BRZ-RL7, SI8630AB-AS1 uniquely combines automotive qualification, factory-set fail-safe low output, 150 Mbps speed, and 50 kV/µs CMTI - making it optimal for next-generation EV power electronics where timing determinism and fault resilience are co-required.
Availability
SI8630AB-AS1 is available at Aetrix Electronics and suitable for automotive battery management systems, on-board chargers, and traction inverter control requiring stable component supply across extended temperature and long product lifecycles.
Supply support for SI8630AB-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 leader in analog semiconductors, specializing in RF, timing, and isolation technologies for wireless, automotive, and industrial markets.
The Si8630 family targets high-reliability automotive and industrial isolation needs, delivering RF-based digital isolation with AEC-Q100 qualification, reinforced safety certification, and fail-safe configurability for functional safety-critical systems.
FAQ
What is the isolation rating and safety certification of SI8630AB-AS1?
SI8630AB-AS1 provides 2.5 kVRMS isolation and is certified to UL 1577, CSA Component Notice 5A, IEC 60950-1 (reinforced), and CQC GB4943.1. These approvals validate its use in automotive and industrial equipment requiring reinforced insulation barriers, and all certifications are documented in Skyworks' official datasheet Rev. 206522A.
Does SI8630AB-AS1 support fail-safe operation, and how is it configured?
Yes, SI8630AB-AS1 has factory-configured fail-safe low-default output: when VDD1 is unpowered, B1–B3 assert logic low if VDD2 remains active. This behavior is fixed at manufacture (not user-programmable) and is defined by the "AB" ordering code per Table 1.1 in the datasheet - distinguishing it from "AC" (high-default) variants.
What is the maximum data rate and propagation delay of SI8630AB-AS1?
SI8630AB-AS1 supports up to 150 Mbps with a typical propagation delay of 8 ns (max 13 ns). This performance is guaranteed across –40 to +125 °C and 2.5–5.5 V supply ranges, enabling high-speed SPI, UART, and digital control links in automotive power electronics without timing bottlenecks.
How does the enable (EN) pin function on SI8630AB-AS1?
The EN pin on SI8630AB-AS1 is an active-low control on the VDD2 side: pulling EN low places B1–B3 outputs in high-impedance state, decoupling downstream logic. When EN is high or floating (internally pulled up), outputs follow A1–A3 inputs. This feature enables dynamic channel gating in multi-phase motor controllers using SI8630AB-AS1.
Is SI8630AB-AS1 qualified for automotive applications, and what standards does it meet?
Yes, SI8630AB-AS1 is AEC-Q100 qualified (Grade 1, –40 to +125 °C), manufactured using automotive-specific process flows, and supported with AIAG-compliant PPAP documentation. It also meets IMDS/CAMDS material reporting requirements - confirming its suitability for battery management, on-board chargers, and traction inverters in BEV/HEV platforms.
SI8630AB-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:
- -
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- -
- 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
SI8630AB-AS1 FAQ
1.How can I place an order for SI8630AB-AS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8630AB-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 SI8630AB-AS1 reliable?
The price and inventory of SI8630AB-AS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8630AB-AS1 is usually 5 days.
3.What payment methods are accepted for SI8630AB-AS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8630AB-AS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8630AB-AS1?
SI8630AB-AS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8630AB-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 SI8630AB-AS1?
For technical support, including SI8630AB-AS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8630AB-AS1 requirements.
6.How does Aetrix verify that SI8630AB-AS1 is sourced from the original manufacturer or authorized distributors?
All SI8630AB-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 SI8630AB-AS1 meets industry standards.
7.What is the process for return or replacement of SI8630AB-AS1?
All SI8630AB-AS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8630AB-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 SI8630AB-AS1 part is unused and in its original packaging.
Return procedure for SI8630AB-AS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8630AB-AS1 Tags
-
ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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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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