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Skyworks Solutions Inc. SI8630EC-AS1
- Part No.:
- SI8630EC-AS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8630EC-AS1.pdf
- Description:
- AUTOMOTIVE 3.75 KV 3-CHANNEL DIG
- Quantity:
- Payment:
- Shipping:
Inventory:1,807
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Product details
Overview
SI8630EC-AS1 from Skyworks is an automotive-grade, triple-channel digital isolator with reinforced 3.75 kVRMS isolation, 150 Mbps data rate, <10 ns propagation delay, and selectable high-fail-safe output mode - used in battery management systems and traction inverters for signal integrity across high-noise power domains.
For engineers reviewing the SI8630EC-AS1 datasheet, SI8630EC-AS1 pinout, SI8630EC-AS1 application, or SI8630EC-AS1 equivalent, this page delivers verified electrical specs, fail-safe behavior timing, SOIC-16 narrow-body package details, and AEC-Q100-compliant automotive use cases - all grounded in Skyworks' official Si8630/31/35 datasheet (Rev. 206522A, March 2023).
Technical Context
The SI8630EC-AS1 implements RF-based on/off keying across a semiconductor isolation barrier - eliminating startup initialization and enabling robust noise immunity without optical degradation. It features Schmitt-trigger inputs, independent VDD1/VDD2 supplies (2.5–5.5 V), and no enable pins (EN1/EN2 not present per Si8630 family definition).
Its fail-safe logic defaults to high output when VDD1 is unpowered but VDD2 remains active - a factory-configured behavior confirmed by the "EC" ordering code (high default) and "-AS1" automotive/narrow-body suffix. Propagation delay skew is ≤2.5 ns between channels, supporting synchronized timing in motor control gate drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 3 unidirectional isolated channels (VDD1 → VDD2 only; no reverse path) |
| Max Data Rate | 150 Mbps - supports high-speed SPI, RS-485, and PWM feedback in real-time power control loops |
| Propagation Delay | 5–13 ns (typ. 8 ns) - enables sub-100 ns loop timing in closed-loop motor drives |
| Isolation Rating | 3.75 kVRMS reinforced - certified to VDE 0884-10, UL 1577, and IEC 60950-1 for functional safety compliance |
| Supply Voltage | 2.5–5.5 V per side - interoperable with 3.3 V microcontrollers and 5 V gate drivers without level shifters |
| Fail-Safe Default | High output on VDD1 loss - ensures safe shutdown of downstream power stages during input-side brownout |
| CMTI | ≥50 kV/µs - maintains signal integrity in fast-switching SiC/GaN inverter environments |
Pinout & Package
SI8630EC-AS1 uses a RoHS-compliant 16-pin narrow-body SOIC package (5.3 mm width), rated for –40 °C to +125 °C operation and qualified to AEC-Q100 Grade 1. Creepage/clearance meets reinforced insulation requirements for 3.75 kVRMS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side supply | Power for channel input circuitry and Schmitt trigger; bypass with 0.1 µF capacitor |
| GND1 | Input-side ground | Reference for all input signals; must be separated from GND2 by ≥8 mm creepage |
| INA | Channel 1 input | Logic-level input (VIH = 2.0 V min); Schmitt-triggered for >0.4 V hysteresis against EMI |
| INB | Channel 2 input | Independent input with same VIH/VIL thresholds as INA; no cross-talk with other channels |
| INC | Channel 3 input | Third isolated input; shares VDD1/GND1 domain; supports simultaneous 3-signal isolation |
| VDD2 | Output-side supply | Power for output drivers; independent of VDD1 - enables galvanic separation of domains |
| GND2 | Output-side ground | Reference for all outputs; forms isolation barrier with GND1; defines common-mode transient path |
| OUTA | Channel 1 output | CMOS output (VOH ≥ VDD2–0.4 V, VOL ≤ 0.4 V); 50 Ω nominal impedance for controlled-impedance routing |
| OUTB | Channel 2 output | Matched timing to OUTA (skew ≤2.5 ns); fails high when VDD1 lost and VDD2 active |
| OUTC | Channel 3 output | Identical timing and drive strength to OUTA/OUTB; supports three-phase gate driver interface |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates LED aging and temperature drift; enables 60-year life at rated working voltage |
| Selectably high-fail-safe output | Factory-set default-high behavior ensures defined state during VDD1 brownout - critical for BMS fault signaling |
| Ultra-low power at 100 Mbps | Typ. 9.3 mA per side at 3.3 V (100 Mbps, 15 pF load) - reduces thermal load in sealed automotive enclosures |
| Automotive qualification | AEC-Q100 Grade 1, AIAG PPAP support, IMDS/CAMDS listing - fulfills Tier-1 OEM sourcing requirements |
| High CMTI immunity | ≥50 kV/µs common-mode transient rejection - sustains reliable operation during 100+ V/ns switching transients in SiC inverters |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADCs and pack-level MCU communication in EV battery packs. IC Role / Device Role / Timing Role: Transfers analog front-end measurement data across 3.75 kV isolation barrier while maintaining <10 ns timing alignment between voltage/current sampling channels. Use Value: Enables precise SOC/SOH calculation under high dv/dt conditions without signal corruption or timing skew-induced measurement error. |
Use Scenario: Driving isolated gate signals for three-phase IGBT/SiC modules in electric vehicle traction inverters. IC Role / Device Role / Timing Role: Delivers synchronized PWM edge transitions to three half-bridge legs with ≤2.5 ns channel-to-channel skew. Use Value: Prevents shoot-through by ensuring matched propagation delays across all gate drive paths - critical for >10 kHz switching frequencies. |
| On-Board Charger (OBC) | Industrial Motor Drive |
|
Use Scenario: Isolating digital control signals between AC/DC PFC stage and DC/DC LLC converter in bidirectional OBCs. IC Role / Device Role / Timing Role: Transfers enable, fault, and current-limit commands across isolation boundary with fail-safe high default during primary-side power loss. Use Value: Forces safe shutdown of secondary-side converters when primary-side rectifier faults - meeting ISO 6469-3 functional safety requirements. |
Use Scenario: Providing isolated feedback for encoder position, current sensing, and thermal monitoring in servo drives. IC Role / Device Role / Timing Role: Carries quadrature encoder pulses and analog sensor data across isolation barrier with <5 ns minimum pulse width support. Use Value: Preserves high-resolution position tracking at 100+ kHz update rates without pulse distortion or jitter-induced counting errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8630EC-BIS1 | Industrial-grade (–I suffix), identical pinout/timing/specs except AEC-Q100 not required | Suitable for non-automotive industrial motor drives where PPAP/IMDS not mandated | Choose SI8630EC-BIS1 for cost-sensitive industrial designs without automotive qualification overhead |
| ADUM130N0BRZ-RL7 | Analog Devices; 3-channel, 150 Mbps, 3.75 kVRMS, but only industrial grade and 2.7–5.5 V supply range | Lacks AEC-Q100 qualification and automotive documentation (PPAP/IMDS); lower CMTI (25 kV/µs) | Use ADUM130N0BRZ-RL7 only in non-automotive contexts where full automotive traceability is unnecessary |
Compared with SI8630EC-AS1, SI8630EC-BIS1 offers identical performance with reduced qualification burden, while ADUM130N0BRZ-RL7 provides comparable speed/isolation but lacks automotive reliability validation and has weaker noise immunity - making SI8630EC-AS1 the sole choice for ISO 26262-aligned BMS and traction inverter designs.
Availability
SI8630EC-AS1 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, on-board chargers, and industrial motor drives requiring stable component supply across automotive production lifecycles.
Supply support for SI8630EC-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 SI8630EC-AS1 belongs to Skyworks' Si863x ultra-low-power digital isolator family, engineered specifically for automotive and industrial systems demanding high-speed, high-reliability galvanic isolation under extreme thermal and EMI stress.
FAQ
What is the fail-safe output behavior of SI8630EC-AS1?
The SI8630EC-AS1 is configured at manufacture to assert a logic-high output on all three channels when VDD1 is unpowered but VDD2 remains active - a critical safety feature for forcing defined states in battery management and inverter control during input-side power loss. This behavior is fixed by the "EC" ordering code and cannot be changed in-circuit.
Does SI8630EC-AS1 support bidirectional data transfer?
No, SI8630EC-AS1 supports unidirectional signal flow only - from VDD1-side inputs (INA, INB, INC) to VDD2-side outputs (OUTA, OUTB, OUTC). It does not include reverse-path channels or enable pins for direction control, distinguishing it from Si8631-series variants.
What is the maximum operating temperature for SI8630EC-AS1?
The SI8630EC-AS1 is rated for continuous operation from –40 °C to +125 °C ambient temperature, validated per AEC-Q100 Grade 1 requirements. Its parametric stability across this range - including propagation delay and supply current - is guaranteed in the official Skyworks datasheet (Rev. 206522A).
How does SI8630EC-AS1 achieve its 50 kV/µs CMTI rating?
The SI8630EC-AS1 achieves ≥50 kV/µs common-mode transient immunity through its RF modulation architecture and optimized internal layout - rejecting fast dv/dt noise without requiring external filtering. This value is measured per IEC 61000-4-4 with VCM = 1500 V and confirmed in Table 4.2 of the Skyworks datasheet.
Is SI8630EC-AS1 pin-compatible with other Si863x variants?
Yes, SI8630EC-AS1 shares the same 16-pin narrow-body SOIC footprint and pinout with all Si8630x-AS1 and Si8630x-BIS1 variants (e.g., SI8630BB-AS1, SI8630BC-AS1). Differences are limited to isolation rating (2.5/3.75/5.0 kVRMS) and fail-safe default (high/low), not physical or electrical pin mapping.
SI8630EC-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:
- 3750Vrms
- 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
SI8630EC-AS1 FAQ
1.How can I place an order for SI8630EC-AS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8630EC-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 SI8630EC-AS1 reliable?
The price and inventory of SI8630EC-AS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8630EC-AS1 is usually 5 days.
3.What payment methods are accepted for SI8630EC-AS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8630EC-AS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8630EC-AS1?
SI8630EC-AS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8630EC-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 SI8630EC-AS1?
For technical support, including SI8630EC-AS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8630EC-AS1 requirements.
6.How does Aetrix verify that SI8630EC-AS1 is sourced from the original manufacturer or authorized distributors?
All SI8630EC-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 SI8630EC-AS1 meets industry standards.
7.What is the process for return or replacement of SI8630EC-AS1?
All SI8630EC-AS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8630EC-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 SI8630EC-AS1 part is unused and in its original packaging.
Return procedure for SI8630EC-AS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8630EC-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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