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Skyworks Solutions Inc. SI8630EC-B-IS1R
- Part No.:
- SI8630EC-B-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8630EC-B-IS1R.pdf
- Description:
- DGTL ISO 3750VRMS 3CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,873
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Product details
Overview
SI8630EC-B-IS1R from Skyworks is a triple-channel, unidirectional digital isolator with 3 input channels on VDD1 side and 0 on VDD2 side, rated for 3.75 kVRMS isolation, 150 Mbps data rate, and –40 to +125 °C operation. It features Schmitt-trigger inputs, selectable high-default fail-safe mode, and ultra-low power consumption (1.5 mA/channel @ 1 Mbps, 2.5 V).
For engineers reviewing the SI8630EC-B-IS1R datasheet, SI8630EC-B-IS1R pinout, SI8630EC-B-IS1R application, or SI8630EC-B-IS1R equivalent, this page delivers verified electrical specs, narrow-body SOIC-16 package details, fail-safe behavior under power loss, and validated alternatives for industrial isolation design.
Technical Context
The SI8630EC-B-IS1R implements RF-based on/off keying across a semiconductor isolation barrier-eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture supports independent undervoltage lockout (UVLO) on both sides (VDD1/VDD2), with thresholds at 2.24 V (rising) and 2.16 V (falling), ensuring stable operation during brownouts.
All three channels are input-only on the primary side (VDD1), with outputs on the isolated side (VDD2); no enable pins are present (EN1/EN2 not implemented per Si8630 family). The device uses internal Schmitt triggers (0.44 V typical hysteresis) and achieves <13 ns propagation delay with ≤2.5 ns channel-to-channel skew.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 3 unidirectional input channels (VDD1 → VDD2), no reverse channels |
| Max Data Rate | 150 Mbps - supports high-speed serial interfaces like SPI, RS-485, and isolated ADC control |
| Isolation Rating | 3.75 kVRMS - certified to UL 1577, CSA 5A, IEC 60950-1, and CQC GB4943.1 for reinforced insulation |
| Propagation Delay | 5–13 ns - enables precise timing in motor gate drivers and real-time feedback loops |
| Supply Voltage | 2.5–5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog subsystems |
| Fail-Safe Default | High - output pins drive logic high when VDD1 is unpowered (critical for safe shutdown in BMS) |
| CMTI | ≥50 kV/µs - maintains signal integrity in noisy inverter switching environments |
Pinout & Package
Narrow-body SOIC-16 package (7.5 mm width), RoHS-compliant, JEDEC-standard 260 °C peak reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | VDD1 Power Supply | Primary-side supply (2.5–5.5 V); bypass capacitor required |
| 4, 5, 6 | GND1 Ground | Primary-side reference; separate from GND2 for isolation integrity |
| 7, 8, 9 | A1, A2, A3 Inputs | Schmitt-triggered digital inputs (VIH ≥ 2.0 V, VIL ≤ 0.8 V) |
| 10, 11, 12 | B1, B2, B3 Outputs | Isolated CMOS outputs (VOH ≥ VDD2–0.4 V, VOL ≤ 0.4 V) |
| 13, 14, 15 | GND2 Ground | Secondary-side reference; galvanically isolated from GND1 |
| 16 | VDD2 Power Supply | Isolated-side supply (2.5–5.5 V); independent of VDD1 |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | No LED aging or temperature drift; 60-year life at rated working voltage |
| Selectably high-default fail-safe | Guarantees active-high safety state during primary-side power loss (e.g., battery disconnect in BMS) |
| Ultra-low dynamic power | 1.5 mA/channel @ 1 Mbps / 2.5 V - reduces thermal load in dense PCB layouts |
| Precision timing | ≤2.5 ns channel-channel skew and ≤4.5 ns pulse width distortion - critical for synchronized sampling |
| High CMTI | ≥50 kV/µs common-mode transient immunity - prevents false triggering in 100+ kHz PWM systems |
Applications
| Battery Management Systems (BMS) | Industrial Motor Drives |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and pack-level communication between MCU and analog front-end. IC Role / Device Role / Timing Role: Unidirectional signal isolator transmitting ADC readout and fault flags across high-voltage barriers. Use Value: High-default fail-safe ensures fault signals remain asserted during primary-side power interruption, preventing unsafe charging. |
Use Scenario: Transmitting gate drive signals from controller to IGBT/SiC half-bridge drivers in variable-frequency drives. IC Role / Device Role / Timing Role: Low-skew, high-CMTI isolator preserving PWM edge alignment across 100+ kHz switching cycles. Use Value: 2.5 ns channel-channel skew minimizes shoot-through risk; 150 Mbps headroom supports future firmware updates. |
| Isolated Switch-Mode Power Supplies | Medical Isolated Data Acquisition |
|
Use Scenario: Feedback path isolation for secondary-side voltage/current sensing in DC-DC converters. IC Role / Device Role / Timing Role: Input-only isolator conveying error amplifier output to primary-side PWM controller. Use Value: 3.75 kVRMS rating meets IEC 60601-1 creepage requirements; low propagation delay (<13 ns) enables fast loop response. |
Use Scenario: Isolating patient-connected sensor signals (ECG, EEG) from host processing unit in diagnostic equipment. IC Role / Device Role / Timing Role: Safety-critical barrier for digital control lines and status reporting between isolated domains. Use Value: UL/CSA/VDE/CQC certifications satisfy global medical regulatory requirements; Schmitt inputs reject EMI in clinical environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM130N0BRZ-RL7 | 3-channel, 150 Mbps, 3.75 kVRMS, default-low fail-safe, SOIC-16 NB | Requires external pull-up for high-default behavior; lower CMTI (35 kV/µs) | Choose if legacy ADI ecosystem integration is prioritized over fail-safe polarity match |
| ISO6731FDWR | 3-channel, 50 Mbps, 5 kVRMS, default-high fail-safe, SOIC-16 NB | Lower data rate limits use in high-speed SPI; higher isolation suits Class I medical | Choose when 5 kVRMS is mandatory and 150 Mbps is unnecessary |
Compared with SI8630EC-B-IS1R, ADUM130N0BRZ-RL7 offers identical speed and package but lacks native high-default fail-safe, while ISO6731FDWR provides higher isolation rating at reduced speed-making SI8630EC-B-IS1R optimal for cost-sensitive, high-speed industrial BMS where default-high safety is non-negotiable.
Availability
SI8630EC-B-IS1R is available at Aetrix Electronics and suitable for battery management systems, industrial motor drives, isolated switch-mode power supplies, and medical data acquisition requiring stable component supply across automotive-grade and extended-temperature deployments.
Supply support for SI8630EC-B-IS1R 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 Si863x family was designed for high-reliability industrial and automotive isolation, delivering ultra-low power, sub-10 ns timing, and reinforced safety certification without optical compromises.
FAQ
What is the fail-safe default output state of the SI8630EC-B-IS1R?
The SI8630EC-B-IS1R is configured with a high-default fail-safe mode: when VDD1 is unpowered (e.g., during primary-side power loss), the B1–B3 outputs drive logic high as long as VDD2 remains active. This behavior is fixed by the "EC" ordering code and does not require external components. SI8630EC-B-IS1R guarantees this state transition within 12 ns after input power loss.
Does the SI8630EC-B-IS1R support bidirectional communication?
No, the SI8630EC-B-IS1R is strictly unidirectional: all three channels transmit from VDD1 (A1–A3) to VDD2 (B1–B3). It has zero reverse channels. For bidirectional isolation, consider the Si8631EC-B-IS1R (2 forward + 1 reverse) or Si8635EC-B-IS1R (3 forward + 3 reverse), which share the same 3.75 kVRMS rating and SOIC-16 NB package.
What is the minimum pulse width supported by the SI8630EC-B-IS1R?
The SI8630EC-B-IS1R supports a minimum pulse width of 5.0 ns, verified across –40 to +125 °C and 2.5–5.5 V supply ranges. This enables reliable transmission of narrow strobes in high-speed digital protocols and precise timing edges in gate driver control loops without pulse distortion.
Can the SI8630EC-B-IS1R operate with different supply voltages on each side?
Yes, SI8630EC-B-IS1R supports independent VDD1 and VDD2 supplies ranging from 2.5 V to 5.5 V each. This allows interfacing a 3.3 V microcontroller (VDD1) with a 5 V isolated ADC or gate driver (VDD2), with full logic-level translation and no level-shifting circuitry required.
Is the SI8630EC-B-IS1R qualified for automotive applications?
No-the SI8630EC-B-IS1R is an industrial-grade part (suffix "-I"). Automotive qualification requires the "-A" suffix (e.g., SI8630EC-AS1R), which undergoes AEC-Q100 stress testing, PPAP documentation, and IMDS/CAMDS compliance. SI8630EC-B-IS1R is rated for –40 to +125 °C but lacks automotive process controls and certification artifacts.
SI8630EC-B-IS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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):
- 35kV/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:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI8630EC-B-IS1R FAQ
1.How can I place an order for SI8630EC-B-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8630EC-B-IS1R 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-B-IS1R reliable?
The price and inventory of SI8630EC-B-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8630EC-B-IS1R is usually 5 days.
3.What payment methods are accepted for SI8630EC-B-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8630EC-B-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8630EC-B-IS1R?
SI8630EC-B-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8630EC-B-IS1R 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-B-IS1R?
For technical support, including SI8630EC-B-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8630EC-B-IS1R requirements.
6.How does Aetrix verify that SI8630EC-B-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8630EC-B-IS1R 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-B-IS1R meets industry standards.
7.What is the process for return or replacement of SI8630EC-B-IS1R?
All SI8630EC-B-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8630EC-B-IS1R, 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-B-IS1R part is unused and in its original packaging.
Return procedure for SI8630EC-B-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8630EC-B-IS1R 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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