My Inquiry
My Account
Skyworks Solutions Inc. SI8630ET-IS2
- Part No.:
- SI8630ET-IS2
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8630ET-IS2.pdf
- Description:
- LINEAR IC'S
- Quantity:
- Payment:
- Shipping:
Inventory:1,363
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI8630ET-IS2 from Skyworks is a triple-channel, unidirectional digital isolator with reinforced 5 kVRMS isolation, Schmitt-trigger inputs, and selectable high-default fail-safe output mode. It operates from 2.5–5.5 V on both sides, supports up to 150 Mbps data rate, achieves <10 ns propagation delay, and is rated for –40°C to +125°C industrial temperature range - deployed in isolated gate drivers and battery management systems.
For engineers reviewing the SI8630ET-IS2 datasheet, SI8630ET-IS2 pinout, SI8630ET-IS2 application, or SI8630ET-IS2 equivalent, key selection criteria include its 5 kVRMS reinforced insulation (VDE 0884-10), 0.5 ns channel-channel skew, 50 kV/µs CMTI, and SOIC-16 wide-body package with creepage/clearance compliant to IEC 61010-1 and IEC 60601-1.
Technical Context
The SI8630ET-IS2 implements RF-based on/off keying across a semiconductor isolation barrier - eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture delivers deterministic timing with sub-nanosecond skew and no external components beyond 0.1 µF bypass capacitors per supply rail.
All three channels are input-side (VDD1) to output-side (VDD2) unidirectional, with no enable pins (EN1/EN2 not connected). The default-high fail-safe mode ensures outputs drive logic high during input-side power loss while maintaining isolation integrity under 5 kVRMS working voltage and 10 kV surge capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS reinforced (VDE 0884-10 certified); enables single-package isolation in medical and industrial safety-critical systems requiring 60-year lifetime at rated voltage. |
| Max Data Rate | 150 Mbps; supports high-speed serial interfaces like SPI, RS-485 transceiver control, and real-time motor feedback loops without timing bottlenecks. |
| Propagation Delay | 8 ns typical (≤13 ns max); ensures tight synchronization between isolated control and sensing domains in fast-switching power converters. |
| Channel-Channel Skew | 0.5 ns typical (≤2.5 ns max); guarantees precise phase alignment across all three isolated signals - critical for multi-phase gate driver timing. |
| CMTI | 100 kV/µs (Si8630xT variant); suppresses false triggering in high-dV/dt environments such as SiC/GaN inverter half-bridges and traction inverters. |
| Supply Voltage Range | 2.5–5.5 V on both VDD1 and VDD2; allows interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level-shifting. |
| Fail-Safe Output | Default-high (ordering option 'ET'); maintains active logic state on output side during input-side brownout - essential for safe shutdown sequencing in BMS. |
Pinout & Package
SI8630ET-IS2 is housed in a RoHS-compliant 16-pin wide-body SOIC package (7.5 mm creepage, 8.3 mm clearance), qualified for reinforced insulation per VDE 0884-10 and UL 1577. The package supports surface-mount reflow per JEDEC J-STD-020 (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side power supply | Supplies power to input-side logic and RF transmitter; requires 0.1 µF bypass capacitor to GND1. |
| GND1 | Input-side ground reference | Return path for VDD1; must be separated from GND2 by ≥8.3 mm PCB clearance to maintain 5 kVRMS isolation barrier. |
| A1, A2, A3 | Digital input channels | Three Schmitt-triggered CMOS inputs accepting 2.5–5.5 V logic; immune to noise up to 50 kV/µs common-mode transients. |
| VDD2 | Output-side power supply | Supplies power to output-side RF receiver and driver; independent of VDD1 - enables galvanic separation of power domains. |
| GND2 | Output-side ground reference | Return path for VDD2; forms isolated signal return for B1–B3 outputs; must not be connected to GND1. |
| B1, B2, B3 | Digital output channels | Three CMOS outputs with 50 Ω nominal impedance; drive 15 pF loads at 150 Mbps; default-high during VDD1 loss. |
| NC | No-connect terminal | Pins 1, 2, 15, and 16 are internally unconnected; must remain floating or tied to GND/VDD per layout guidelines - no functional role. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates LED aging and temperature drift; enables stable timing performance across –40°C to +125°C with no calibration or initialization required. |
| Reinforced 5 kVRMS isolation | Meets VDE 0884-10 and UL 1577 standards; supports single-chip isolation in Class I medical equipment and industrial PLCs without external creepage extenders. |
| 0.5 ns channel-channel skew | Enables simultaneous sampling of three isolated current/voltage sensors in motor control - preserving vector control accuracy at >20 kHz PWM frequencies. |
| 100 kV/µs CMTI | Prevents metastability in SiC/GaN half-bridge gate drivers during 100 V/ns switching events - verified per IEC 61000-4-4. |
| Default-high fail-safe mode | Ensures B1–B3 assert logic high when VDD1 fails - used to hold gate drivers in OFF state during input-side power loss in battery management systems. |
Applications
| Motor Control Systems | Isolated ADC Interfaces |
|---|---|
|
Use Scenario: Isolating PWM signals and fault feedback between MCU and 3-phase IGBT/SiC gate drivers in servo drives. IC Role / Device Role / Timing Role: SI8630ET-IS2 provides three synchronized, low-skew isolated channels to transmit gate enable, dead-time control, and DESAT feedback with <10 ns delay matching. Use Value: Enables precise timing coordination across isolated domains, reducing shoot-through risk and improving inverter efficiency by >1.2% at 20 kHz switching. |
Use Scenario: Transmitting digitized current/voltage measurements from isolated shunt/sense transformers to host MCU in energy metering. IC Role / Device Role / Timing Role: SI8630ET-IS2 carries SPI clock, MOSI, and MISO signals across the isolation barrier while maintaining 150 Mbps throughput and sub-ns skew. Use Value: Preserves 24-bit ADC resolution and sampling coherence across isolation boundary - critical for Class 0.2 metering accuracy compliance. |
| Battery Management Systems | Traction Inverters |
|
Use Scenario: Isolating cell monitoring IC communication and pack-level fault signaling in EV battery packs operating at 800 V DC bus. IC Role / Device Role / Timing Role: SI8630ET-IS2 conveys daisy-chain UART commands and overvoltage alerts from isolated slave controllers to master MCU with fail-safe high default. Use Value: Guarantees safe open-circuit response during primary-side power interruption - preventing thermal runaway via immediate contactor disengagement. |
Use Scenario: Isolating control signals between vehicle MCU and high-power SiC inverter modules in BEV powertrains. IC Role / Device Role / Timing Role: SI8630ET-IS2 delivers gate drive enable, phase current sense enable, and fault clear signals with 100 kV/µs CMTI immunity. Use Value: Maintains signal integrity during 100 V/ns dv/dt events in 800 V systems - eliminating spurious turn-on and extending inverter MTBF by 3×. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM130D0BRWZ | 3-channel, 150 Mbps, 3.75 kVRMS, default-low fail-safe, SOIC-16 narrow body | Lacks reinforced 5 kVRMS rating and VDE 0884-10 certification; lower CMTI (75 kV/µs) | Use where 3.75 kV isolation suffices and board space constraints favor narrow-body package. |
| ISO7731FDWR | 3-channel, 100 Mbps, 5 kVRMS, default-low, SOIC-16 wide body, lower power (1.2 mA @ 1 Mbps) | Lower data rate limits SPI clock speed; no default-high option; CMTI = 85 kV/µs | Select when ultra-low quiescent current is prioritized over 150 Mbps and fail-safe polarity flexibility. |
Compared with ADUM130D0BRWZ and ISO7731FDWR, SI8630ET-IS2 uniquely combines 5 kVRMS reinforced isolation, 150 Mbps bandwidth, default-high fail-safe, and 100 kV/µs CMTI - making it optimal for high-reliability automotive traction and medical power systems where timing precision and safety integrity are non-negotiable.
Availability
SI8630ET-IS2 is available at Aetrix Electronics and suitable for battery management systems, motor control inverters, and isolated data acquisition requiring stable component supply across automotive and industrial production cycles.
Supply support for SI8630ET-IS2 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 for high-performance wireless and power systems.
The SI8630ET-IS2 belongs to Skyworks' Si863x ultra-low-power digital isolator family, engineered for safety-critical industrial and automotive applications demanding long-term reliability, high CMTI, and reinforced insulation without optical degradation.
FAQ
What is the isolation rating and safety certification of SI8630ET-IS2?
SI8630ET-IS2 is certified for 5 kVRMS reinforced isolation per VDE 0884-10, UL 1577, CSA 5A, and CQC GB4943.1. It meets IEC 61010-1 and IEC 60601-1 requirements for medical and industrial equipment, with 10 kV surge capability and 60-year lifetime at rated working voltage - validated across –40°C to +125°C.
Does SI8630ET-IS2 require external components for operation?
SI8630ET-IS2 requires only two 0.1 µF ceramic bypass capacitors - one between VDD1 and GND1, another between VDD2 and GND2 - placed adjacent to the package. No pull-up/down resistors, level shifters, or initialization firmware are needed, as the device powers up with deterministic default-high outputs and zero-startup latency.
How does the fail-safe default-high mode function in SI8630ET-IS2?
In SI8630ET-IS2, the "ET" suffix denotes default-high fail-safe behavior: when VDD1 is unpowered or below UVLO threshold (≤2.16 V), outputs B1–B3 actively drive logic high as long as VDD2 remains powered. This is implemented via internal 10 µA pull-ups and ensures safe system state retention during input-side brownouts - critical in BMS and inverter safety chains.
What is the channel configuration and directionality of SI8630ET-IS2?
SI8630ET-IS2 provides three unidirectional channels (A1→B1, A2→B2, A3→B3) with no enable pins (EN1/EN2 are NC). All inputs reside on the VDD1 side; all outputs on the VDD2 side. It does not support bidirectional or reverse-direction channels - unlike SI8631 or SI8635 variants.
Can SI8630ET-IS2 operate with mismatched supply voltages on VDD1 and VDD2?
Yes - SI8630ET-IS2 supports independent 2.5–5.5 V supplies on VDD1 and VDD2. For example, it can interface a 3.3 V MCU (VDD1) with a 5 V gate driver stage (VDD2), or a 2.5 V sensor interface (VDD1) with a 3.3 V ADC domain (VDD2), without external level translation or voltage regulation between sides.
SI8630ET-IS2 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:
- Yes
- Number of Channels:
- 3
- Inputs - Side 1/Side 2:
- 3/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- 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
SI8630ET-IS2 FAQ
1.How can I place an order for SI8630ET-IS2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8630ET-IS2 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 SI8630ET-IS2 reliable?
The price and inventory of SI8630ET-IS2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8630ET-IS2 is usually 5 days.
3.What payment methods are accepted for SI8630ET-IS2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8630ET-IS2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8630ET-IS2?
SI8630ET-IS2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8630ET-IS2 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 SI8630ET-IS2?
For technical support, including SI8630ET-IS2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8630ET-IS2 requirements.
6.How does Aetrix verify that SI8630ET-IS2 is sourced from the original manufacturer or authorized distributors?
All SI8630ET-IS2 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 SI8630ET-IS2 meets industry standards.
7.What is the process for return or replacement of SI8630ET-IS2?
All SI8630ET-IS2 units undergo pre-shipment inspection (PSI). If there is an issue with SI8630ET-IS2, 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 SI8630ET-IS2 part is unused and in its original packaging.
Return procedure for SI8630ET-IS2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8630ET-IS2 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
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
