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Skyworks Solutions Inc. SI8630BB-AS
- Part No.:
- SI8630BB-AS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8630BB-AS.pdf
- Description:
- AUTOMOTIVE 2.5 KV 3-CHANNEL DIGI
- Quantity:
- Payment:
- Shipping:
Inventory:3,347
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Product details
Overview
SI8630BB-AS 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°C to +125°C with 2.5–5.5 V supply voltage per side - deployed in battery management systems and isolated power supplies requiring robust noise immunity and automotive-grade reliability.
For engineers reviewing the SI8630BB-AS datasheet, SI8630BB-AS pinout, SI8630BB-AS application, or SI8630BB-AS equivalent, this page delivers verified technical context, precise timing specs, SOIC-16 wide-body package details, fail-safe behavior clarification, and validated automotive-grade alternatives aligned with AEC-Q100 and reinforced insulation requirements.
Technical Context
The SI8630BB-AS implements RF-based on/off keying across a semiconductor isolation barrier - eliminating startup initialization and enabling deterministic signal transfer without clock recovery. Its three isolated channels are all input-side-referenced (3 inputs on VDD1 side, 0 on VDD2 side), with no enable pins and fixed low-default output during input-side power loss.
It features Schmitt-trigger inputs (1.0–1.9 V hysteresis), 50 Ω nominal output impedance, and guaranteed CMTI ≥35 kV/µs. All electrical parameters remain stable over temperature and lifetime, with UVLO thresholds at 2.16–2.375 V and <40 µs start-up time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels & Direction | 3 unidirectional channels, input-only on VDD1 side (no outputs on VDD1) |
| Isolation Rating | 2.5 kVRMS (UL, CSA, VDE, CQC certified; reinforced insulation) |
| Max Data Rate | 150 Mbps - supports high-speed SPI, RS-485, and gate driver signaling |
| Propagation Delay | ≤10 ns typical - enables tight-timing control in motor control and power inverters |
| Supply Voltage Range | 2.5–5.5 V per side - interoperable with 3.3 V and 5 V logic domains |
| Fail-Safe Default | Low output when VDD1 is unpowered - prevents undefined states in BMS fault conditions |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial environments |
| CMTI | ≥35 kV/µs - sustains reliable operation in noisy high-dv/dt power converter environments |
Pinout & Package
SI8630BB-AS is housed in a RoHS-compliant 16-pin wide-body SOIC package (7.5 mm creepage/clearance), rated for 2.5 kVRMS working voltage and compatible with JEDEC J-STD-020 reflow profiles (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side power supply | Supplies 2.5–5.5 V to input logic and RF transmitter; UVLO active below 2.16 V |
| GND1 | Input-side ground reference | Return path for VDD1; must be separated from GND2 by isolation barrier |
| IN1–IN3 | Digital input signals (Side A) | Schmitt-trigger inputs with 0.44 V hysteresis; tolerate slow edges and EMI |
| VDD2 | Output-side power supply | Supplies 2.5–5.5 V to RF receiver and output drivers; independent of VDD1 |
| GND2 | Output-side ground reference | Return path for VDD2; galvanically isolated from GND1 |
| OUT1–OUT3 | Isolated digital outputs (Side B) | CMOS-compatible outputs; default low when VDD1 = 0 V and VDD2 powered |
| NC | No-connect terminal | Not internally bonded; may be left floating, tied to VDD2, or grounded |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates startup delay and initialization sequences - valid output within 40 µs of power application |
| Selectably fail-safe output | Factory-configured low-default state ensures safe shutdown in BMS or OBC power-loss events |
| Ultra-low power at 100 Mbps | 13.2 mA per side at 5 V (typical) - reduces thermal load in compact automotive modules |
| Precise channel matching | ≤2.5 ns channel-to-channel skew - critical for synchronized PWM or encoder signal isolation |
| AEC-Q100 Grade 0 qualification | Validated for automotive use up to +125°C ambient - supported by PPAP, IMDS, and CAMDS documentation |
| Reinforced insulation system | Meets IEC 60747-5-5 and IEC 61010-1 - enables single-package isolation in safety-critical subsystems |
Applications
| Battery Management System (BMS) | On-Board Charger (OBC) |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and pack-level communication between high-voltage battery stack and MCU. IC Role / Device Role / Timing Role: Transfers analog front-end ADC status and fault flags across 400–800 V isolation barrier with sub-10 ns latency. Use Value: Prevents ground loop errors and ensures fail-safe low output during HV disconnect - meeting ISO 26262 ASIL-C diagnostic coverage requirements. |
Use Scenario: Coupling control signals between primary-side SiC gate drivers and secondary-side AC/DC controller in bidirectional OBC. IC Role / Device Role / Timing Role: Delivers isolated PWM and fault feedback with ≤2.5 ns inter-channel skew to maintain synchronous switching. Use Value: Enables >96% efficiency at 11 kW by preserving signal integrity across fast-switching 100+ kHz SiC half-bridges. |
| Traction Inverter Control | Industrial Isolated ADC Interface |
|
Use Scenario: Isolating IGBT/SiC gate drive enable/disable commands and DESAT feedback in EV traction inverters. IC Role / Device Role / Timing Role: Provides 2.5 kVRMS reinforced isolation for control logic while surviving >50 kV/µs transients near motor windings. Use Value: Guarantees deterministic gate turn-off within 12 ns of fault detection - preventing destructive shoot-through events. |
Use Scenario: Interfacing isolated sigma-delta ADCs (e.g., AMC1306) to host processors in PLC analog input modules. IC Role / Device Role / Timing Role: Transfers oversampled bitstream data at 20+ Mbps with jitter <350 ps to preserve ENOB. Use Value: Maintains 16-bit effective resolution by limiting timing uncertainty to <0.1% of 100 ns minimum pulse width. |
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-IS | Industrial-grade (–I suffix); identical electrical specs and SOIC-16 WB package; lacks AEC-Q100 qualification and PPAP support | Approved for non-automotive industrial use only; not suitable for ASIL-rated systems | Select SI8630BB-B-IS for cost-sensitive industrial designs where automotive qualification is unnecessary |
| ADUM1300ARWZ | 3-channel, 2.5 kVRMS, 100 Mbps max; CMOS-based iCoupler; higher 12 ns propagation delay; no selectable fail-safe mode (default high) | Requires external pull-down for low-fail-safe behavior; limited to 105°C max operating temperature | Choose ADUM1300ARWZ only if legacy iCoupler compatibility or dual-supply flexibility (1.7–5.5 V) outweighs automotive compliance needs |
Compared with SI8630BB-B-IS, SI8630BB-AS adds AEC-Q100 Grade 0 validation and production traceability for automotive programs; versus ADUM1300ARWZ, it delivers faster timing, guaranteed fail-safe low, and extended temperature capability - making it the sole option for ASIL-C BMS signal isolation.
Availability
SI8630BB-AS is available at Aetrix Electronics and suitable for battery management systems, on-board chargers, and traction inverter control requiring stable component supply with full automotive lifecycle support.
Supply support for SI8630BB-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 semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies.
The SI8630 family is engineered for high-reliability automotive and industrial isolation - delivering RF-based digital isolation with AEC-Q100 qualification, reinforced safety certification, and fail-safe configurability for next-generation EV power electronics.
FAQ
What is the isolation rating and safety certification status of SI8630BB-AS?
SI8630BB-AS is certified for 2.5 kVRMS reinforced isolation per UL 1577, CSA Component Acceptance Notice 5A, VDE 0884-10 (IEC 60747-5-5), and CQC GB4943.1. It meets IEC 61010-1 and IEC 60601-1 requirements for medical and test equipment, and its wide-body SOIC package provides 7.5 mm creepage/clearance - fully compliant for functional and basic insulation in automotive and industrial end-equipment.
Does SI8630BB-AS support bidirectional communication?
No, SI8630BB-AS is strictly unidirectional: it provides three input channels on the VDD1 side (IN1–IN3) and three corresponding output channels on the VDD2 side (OUT1–OUT3). There are no input terminals on the VDD2 side, and no enable pins - confirming fixed 3-input/3-output directionality as defined in Table 1.1 of the datasheet.
How does the fail-safe default output function in SI8630BB-AS?
SI8630BB-AS is factory-configured for low-default output: when VDD1 is unpowered (0 V) but VDD2 remains active, OUT1–OUT3 drive logic low within 12 ns (tSD). This behavior is intrinsic to the "-BB" ordering variant and eliminates need for external pull-down resistors in safety-critical shutdown paths - a key requirement in ISO 26262-compliant battery disconnect circuits.
What is the maximum achievable data rate and associated timing performance of SI8630BB-AS?
SI8630BB-AS supports DC to 150 Mbps operation. At 100 Mbps, it guarantees ≤13 ns max propagation delay (tPLH/tPHL), ≤4.5 ns pulse width distortion, ≤2.5 ns channel-to-channel skew, and 5 ns minimum pulse width - enabling reliable isolation of high-speed SPI, digital PWM, and encoder signals in real-time power control loops.
Is SI8630BB-AS pin-compatible with other members of the SI863x family?
Yes, SI8630BB-AS shares identical pinout and SOIC-16 wide-body footprint with all SI8630/31/35 variants (e.g., SI8630BD-AS, SI8631BB-AS). However, channel count, directionality, and default output state differ across part numbers - so PCB layout is reusable, but firmware and system-level fail-safe behavior must be verified per specific OPN.
SI8630BB-AS 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:
- 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-AS FAQ
1.How can I place an order for SI8630BB-AS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8630BB-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 SI8630BB-AS reliable?
The price and inventory of SI8630BB-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8630BB-AS is usually 5 days.
3.What payment methods are accepted for SI8630BB-AS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8630BB-AS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8630BB-AS?
SI8630BB-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8630BB-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 SI8630BB-AS?
For technical support, including SI8630BB-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8630BB-AS requirements.
6.How does Aetrix verify that SI8630BB-AS is sourced from the original manufacturer or authorized distributors?
All SI8630BB-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 SI8630BB-AS meets industry standards.
7.What is the process for return or replacement of SI8630BB-AS?
All SI8630BB-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI8630BB-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 SI8630BB-AS part is unused and in its original packaging.
Return procedure for SI8630BB-AS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8630BB-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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