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Skyworks Solutions Inc. SI8430BB-C-IS1
- Part No.:
- SI8430BB-C-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8430BB-C-IS1.pdf
- Description:
- DGTL ISO 2500VRMS 3CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,781
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Product details
Overview
SI8430BB-C-IS1 from Skyworks Solutions is a triple-channel, ultra-low-power digital isolator in a 16-pin wide-body SOIC package, supporting up to 150 Mbps data rate, <9.5 ns worst-case propagation delay, and 2.5 kVRMS reinforced isolation. It operates from 2.70–5.5 V on both sides, delivers <6 mA per channel at 100 Mbps (5 V), and targets isolated communication in motor control and industrial power systems.
For engineers reviewing the SI8430BB-C-IS1 datasheet, SI8430BB-C-IS1 pinout, SI8430BB-C-IS1 application, or SI8430BB-C-IS1 equivalent, this page provides verified specifications, safety-certified timing performance, channel-to-channel skew ≤1.8 ns, and direct substitution guidance for legacy optocoupler-based designs requiring high CMTI (25 kV/µs) and AEC-Q100 qualification.
Technical Context
The SI8430BB-C-IS1 implements capacitive isolation with on-chip RF modulation/demodulation across three independent bidirectional channels. Its dual-supply architecture (VDD1/VDD2) enables level-shifting between 2.70–5.5 V domains without external logic, and its enable pin controls output tri-state with <9.2 ns response.
All channels meet IEC 60747-5-2 (VDE 0884-2), UL 1577, and CSA Component Notice 5A safety standards, with 560 Vpeak working voltage and 3.6 kVRMS transient overvoltage rating. The device achieves 60-year lifetime at rated voltage and maintains stable timing across –40 to +125 °C at full 150 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 150 Mbps - supports high-speed SPI, RS-485, and gate driver feedback loops without bottlenecking. |
| Propagation Delay | 3.0–9.5 ns (typ/max) - enables precise timing-critical applications like PWM synchronization in inverters. |
| Channel-Channel Skew | ≤1.8 ns (max) - ensures deterministic phase alignment across all three isolated signals for multi-phase control. |
| CMTI | 25 kV/µs (min) - rejects fast common-mode transients in noisy motor drive and SMPS environments. |
| Isolation Voltage | 2500 VRMS (1 min) - certified for reinforced insulation per UL, CSA, and VDE standards. |
| Supply Range | 2.70–5.5 V on both sides - allows interoperability with 3.3 V microcontrollers and 5 V analog subsystems. |
| Power @ 100 Mbps | <6 mA per channel (5 V) - reduces thermal load and simplifies power budgeting in space-constrained designs. |
Pinout & Package
SI8430BB-C-IS1 is housed in a RoHS-compliant 16-pin wide-body SOIC package (package outline per Skyworks Doc Rev. 1.7, p.28), with creepage/clearance of 8.0 mm and 60-year lifetime at rated voltage.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Side 1 I/O (VDD1 domain) | Pins 1–3: CH1–CH3 inputs; Pins 4–6: CH1–CH3 outputs; Pins 7–8: VDD1 and GND1 - supports asymmetric channel directionality. |
| 9, 10, 11, 12, 13, 14, 15, 16 | Side 2 I/O (VDD2 domain) | Pins 9–11: CH1–CH3 outputs; Pins 12–14: CH1–CH3 inputs; Pins 15–16: VDD2 and GND2 - enables full bidirectional isolation per channel. |
| EN (Pin 10) | Enable control input | Active-high signal forcing all Side 2 outputs into high-impedance state within ≤9.2 ns - critical for safe system reset sequences. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | Valid data appears within 40 µs of power application - eliminates boot-time delays in real-time control systems. |
| Pulse width distortion | ≤2.5 ns (max) - preserves signal integrity for narrow-pulse applications like gate driver dead-time control. |
| Output impedance | 85 Ω ±40% - matches standard PCB trace impedances, reducing need for external termination resistors. |
| AEC-Q100 qualified | Grade 1 (–40 to +125 °C) - validated for automotive powertrain and charging systems requiring long-term reliability. |
| Transient immunity | 25 kV/µs CMTI - suppresses noise coupling in high-dV/dt environments such as IGBT/SiC inverter switching. |
Applications
| Industrial Motor Control | Isolated Switch-Mode Power Supply |
|---|---|
|
Use Scenario: Isolating PWM signals and current-sense feedback between MCU and three-phase inverter stage. IC Role / Device Role / Timing Role: Triple-channel isolator transmitting gate drive commands and ADC sampling triggers with ≤1.8 ns inter-channel skew. Use Value: Enables synchronized switching of IGBTs/MOSFETs while rejecting >25 kV/µs transients from power stage commutation. |
Use Scenario: Providing isolated feedback for secondary-side regulation in LLC resonant converters. IC Role / Device Role / Timing Role: Transmitting error amplifier output and synchronous rectifier timing across isolation barrier with <9.5 ns delay. Use Value: Maintains tight voltage regulation under dynamic load steps by preserving loop bandwidth up to 150 Mbps. |
| Hybrid Electric Vehicle Onboard Charger | Isolated Data Acquisition System |
|
Use Scenario: Isolating CAN bus signals and battery management system (BMS) status lines across high-voltage domains. IC Role / Device Role / Timing Role: Bidirectional isolation of UART/CAN physical layer signals with independent supply domains (3.3 V/5 V). Use Value: Meets AEC-Q100 Grade 1 requirements and supports 2.5 kVRMS working voltage for 400 V battery systems. |
Use Scenario: Isolating precision ADC/DAC interfaces in industrial PLC analog I/O modules. IC Role / Device Role / Timing Role: Transmitting serial interface clocks and data between isolated sensor front-end and host processor. Use Value: Delivers <1.5 ns pulse width distortion to preserve resolution in 24-bit sigma-delta converter timing paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM1300BRWZ | 3-channel, 100 Mbps max, 30 ns max propagation delay, 2.5 kVRMS isolation, SOIC-16 wide body | Limited to 100 Mbps and higher latency - unsuitable for 150 Mbps SPI or fast gate driver feedback | Choose when lower data rate suffices and ADI ecosystem integration is prioritized. |
| ISO6731FDWR | 3-channel, 50 Mbps max, 16 ns max propagation delay, 5 kVRMS isolation, SOIC-16 wide body | Higher isolation rating but halved data rate and no AEC-Q100 qualification | Prefer for medical or high-isolation industrial systems where speed is secondary to dielectric strength. |
Compared with ADUM1300BRWZ and ISO6731FDWR, SI8430BB-C-IS1 uniquely combines 150 Mbps throughput, AEC-Q100 Grade 1 qualification, and ≤1.8 ns channel skew - making it optimal for automotive traction inverters and high-bandwidth industrial servo drives where timing determinism is non-negotiable.
Availability
SI8430BB-C-IS1 is available at Aetrix Electronics and suitable for industrial motor control, hybrid electric vehicle onboard chargers, and isolated switch-mode power supplies requiring stable component supply, long-lifecycle support, and certified safety compliance.
Supply support for SI8430BB-C-IS1 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-reliability applications.
The Si84xx family was designed specifically for replacing optocouplers in demanding industrial and automotive systems, delivering superior speed, power efficiency, and safety certification without optical degradation over time.
FAQ
What is the maximum operating temperature for SI8430BB-C-IS1 at full 150 Mbps data rate?
SI8430BB-C-IS1 supports continuous operation at –40 to +125 °C ambient temperature while maintaining 150 Mbps data rate, 2.70–5.5 V supply range, and full safety certification - verified per Skyworks Rev. 1.7 datasheet Table 1 and Figure 2 timing diagrams.
Does SI8430BB-C-IS1 require external bypass capacitors?
Yes - SI8430BB-C-IS1 requires 0.1 µF ceramic bypass capacitors placed close to each VDD pin (VDD1 and VDD2) as specified in Skyworks Application Note AN915. This ensures stable power delivery and meets EMI/EMC requirements for 150 Mbps operation.
Is SI8430BB-C-IS1 pin-compatible with other Si843x variants?
SI8430BB-C-IS1 shares identical 16-pin wide-body SOIC pinout with Si8431BB-C-IS1 and Si8435BB-C-IS1 per Skyworks Package Outline (p.28), but differs in channel configuration: SI8430BB-C-IS1 has 3 forward channels, while Si8431BB-C-IS1 offers 2 forward + 1 reverse channel.
What safety certifications apply to SI8430BB-C-IS1?
SI8430BB-C-IS1 is certified to UL 1577 (2500 VRMS), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2 - with full documentation in Skyworks Rev. 1.7 datasheet Tables 6 and 7, covering reinforced insulation and 60-year lifetime validation.
Can SI8430BB-C-IS1 operate with different supply voltages on each side?
Yes - SI8430BB-C-IS1 supports independent 2.70–5.5 V supplies on VDD1 and VDD2, enabling level translation between 3.3 V microcontrollers and 5 V analog subsystems without external level shifters, as confirmed in Table 1 and Table 3 of the Skyworks datasheet.
SI8430BB-C-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- 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):
- 25kV/µs (Typ)
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 9.5ns, 9.5ns
- Pulse Width Distortion (Max):
- 2.5ns
- Rise / Fall Time (Typ):
- 3.8ns, 2.8ns
- Voltage - Supply:
- 2.7V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI8430BB-C-IS1 FAQ
1.How can I place an order for SI8430BB-C-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8430BB-C-IS1 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 SI8430BB-C-IS1 reliable?
The price and inventory of SI8430BB-C-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8430BB-C-IS1 is usually 5 days.
3.What payment methods are accepted for SI8430BB-C-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8430BB-C-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8430BB-C-IS1?
SI8430BB-C-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8430BB-C-IS1 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 SI8430BB-C-IS1?
For technical support, including SI8430BB-C-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8430BB-C-IS1 requirements.
6.How does Aetrix verify that SI8430BB-C-IS1 is sourced from the original manufacturer or authorized distributors?
All SI8430BB-C-IS1 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 SI8430BB-C-IS1 meets industry standards.
7.What is the process for return or replacement of SI8430BB-C-IS1?
All SI8430BB-C-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8430BB-C-IS1, 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 SI8430BB-C-IS1 part is unused and in its original packaging.
Return procedure for SI8430BB-C-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8430BB-C-IS1 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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