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Skyworks Solutions Inc. SI8430AB-C-IS
- Part No.:
- SI8430AB-C-IS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8430AB-C-IS.pdf
- Description:
- DIGITAL ISOLATOR 3CH 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,035
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Product details
Overview
SI8430AB-C-IS 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 2500 VRMS isolation voltage. It operates across 2.70–5.5 V supply rails and delivers <6 mA per channel at 100 Mbps (5 V), enabling high-speed signal isolation in motor control and isolated power supplies.
For engineers reviewing the SI8430AB-C-IS datasheet, SI8430AB-C-IS pinout, SI8430AB-C-IS application, or SI8430AB-C-IS equivalent, this page provides verified timing specs, safety certifications (UL, CSA, VDE), channel-channel skew (≤1.8 ns), and supply current behavior across 2.7 V/3.3 V/5 V operation - critical for industrial and automotive isolation design validation.
Technical Context
The SI8430AB-C-IS implements capacitive isolation with on-chip RF modulation/demodulation, eliminating magnetic coupling and start-up initialization. Its three independent bidirectional channels support asymmetric supply configurations (VDD1 ≠ VDD2) and feature integrated enable inputs for output tri-state control.
It achieves 25 kV/µs common-mode transient immunity (CMTI) and maintains stable timing performance over –40 to +125 °C at full 150 Mbps data rate. The device is AEC-Q100 qualified and rated for 60-year lifetime at maximum working voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 150 Mbps - supports high-speed serial interfaces like SPI, RS-485, and CAN FD physical layer isolation without bandwidth bottleneck. |
| Propagation Delay | 3.0–9.5 ns (typ/max) - enables precise timing-critical applications such as gate driver feedback loops and real-time motor control. |
| Channel-Channel Skew | ≤1.8 ns (max) - ensures deterministic phase alignment across all three isolated signals for synchronized sampling or PWM distribution. |
| Supply Current @ 100 Mbps | <6 mA per channel at 5 V - reduces thermal load and simplifies power budgeting in space-constrained industrial modules. |
| Isolation Voltage | 2500 VRMS (1 min) - certified for reinforced insulation per UL 1577, CSA 5A, and VDE 0884-2, suitable for 600 VRMS working voltage systems. |
| CMTI | 25 kV/µs - suppresses noise-induced glitches in high-dv/dt environments like IGBT/SiC inverter switching nodes. |
| Operating Temperature | –40 to +125 °C - validated for full 150 Mbps performance across automotive under-hood and industrial ambient conditions. |
Pinout & Package
SI8430AB-C-IS is housed in a 16-pin wide-body SOIC package (package width 10.3 mm, creepage/clearance ≥8.0 mm), optimized for reinforced insulation compliance and PCB-level noise immunity in high-voltage domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side supply | Power input for side 1 (pins 1–8); supports 2.70–5.5 V; bypass capacitor required. |
| VDD2 | Secondary-side supply | Independent power input for side 2 (pins 9–16); enables level-shifting between disparate logic domains. |
| GND1 | Primary-side ground | Reference return for side 1; must be isolated from GND2 by PCB layout and spacing. |
| GND2 | Secondary-side ground | Reference return for side 2; galvanically separated from GND1 to maintain isolation barrier integrity. |
| EN1, EN2, EN3 | Channel enable inputs | Active-high control lines; drive outputs to high-impedance state when low - enables bus sharing and dynamic channel gating. |
| IN1–IN3 / OUT1–OUT3 | Signal I/O pairs | Three independent unidirectional channels (IN→OUT); each supports DC–150 Mbps with no direction control pin required. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | Valid output data within 40 µs of power application - eliminates boot-time uncertainty in safety-critical systems. |
| Pulse width distortion | ≤2.5 ns (typ) - preserves duty cycle fidelity for PWM isolation and clock forwarding applications. |
| Output impedance | 85 Ω ±40% - matches standard 50–100 Ω PCB trace impedances, minimizing reflections without external termination. |
| Transient immunity | 25 kV/µs CMTI - prevents false triggering during fast-switching events in motor drives and inverters. |
| AEC-Q100 qualification | Grade 1 (–40 to +125 °C) - validates reliability for automotive powertrain and charging system use cases. |
Applications
| Industrial Motor Control | Isolated Switch-Mode Power Supply |
|---|---|
|
Use Scenario: Isolating gate driver signals and current-sense feedback in 3-phase inverter stacks. IC Role / Device Role / Timing Role: Triple-channel isolator conveying PWM commands (IN1–IN3) and sensing returns (OUT1–OUT3) across high-voltage barriers. Use Value: ≤1.8 ns channel skew ensures synchronous switching of upper/lower IGBTs; 25 kV/µs CMTI prevents misfiring during dV/dt transients. |
Use Scenario: Providing isolated feedback for secondary-side regulation and primary-side controller communication in LLC resonant converters. IC Role / Device Role / Timing Role: Transmitting error amplifier output and synchronous rectifier timing across isolation boundary with sub-10 ns latency. Use Value: 9.5 ns max propagation delay enables tight-loop compensation; 2500 VRMS rating meets IEC 62368-1 reinforced insulation requirements. |
| Hybrid Electric Vehicle Battery Management | Isolated Data Acquisition |
|
Use Scenario: Isolating cell voltage monitoring and balancing signals between high-voltage battery pack and low-voltage MCU domain. IC Role / Device Role / Timing Role: Three independent channels carrying analog front-end digitized values and balance command signals across 400–800 V potential differences. Use Value: AEC-Q100 Grade 1 qualification ensures long-term reliability; 60-year life rating supports 15+ year vehicle service life. |
Use Scenario: Isolating ADC/DAC interfaces in programmable logic controllers (PLCs) handling 4–20 mA sensor inputs and actuator outputs. IC Role / Device Role / Timing Role: Bridging isolated analog signal chains while preserving timing integrity for multi-channel synchronized sampling. Use Value: ≤2.5 ns pulse width distortion maintains accurate sample-and-hold window timing; 3.3 V/5 V dual-supply flexibility eases integration with legacy and modern mixed-voltage systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM3401BRWZ | Quad-channel, 50 Mbps max, 2500 VRMS, SOIC-16 wide body | Lacks AEC-Q100 qualification; higher propagation delay (25 ns typ) | Preferred where quad-channel count outweighs speed and automotive qualification needs. |
| ISO6731FDWR | Triple-channel, 50 Mbps max, 5000 VRMS, SOIC-16 wide body | Higher isolation rating but lower data rate and no AEC-Q100 qualification | Selected when enhanced dielectric strength is prioritized over high-speed timing performance. |
Compared with ADUM3401BRWZ and ISO6731FDWR, the SI8430AB-C-IS uniquely combines 150 Mbps speed, AEC-Q100 Grade 1 qualification, and ≤1.8 ns channel skew - making it optimal for time-critical automotive and industrial inverter control where both bandwidth and reliability are non-negotiable.
Availability
SI8430AB-C-IS is available at Aetrix Electronics and suitable for industrial motor control, hybrid electric vehicle battery management, and isolated switch-mode power supplies requiring stable component supply, long-lifecycle assurance, and regulatory-compliant isolation.
Supply support for SI8430AB-C-IS 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 SI8430AB-C-IS belongs to the Si84xx family of capacitive digital isolators engineered for high-reliability, high-speed signal transfer in automotive, industrial, and energy infrastructure applications.
FAQ
What is the maximum data rate supported by the SI8430AB-C-IS?
The SI8430AB-C-IS supports a maximum data rate of 150 Mbps under specified operating conditions (VDD = 5 V, TA = –40 to +125 °C, CL = 15 pF). This is confirmed in Table 3 of the datasheet for Si843xBx variants, and the "AB" suffix in SI8430AB-C-IS denotes the B-grade high-speed version. Performance remains stable across its full temperature range.
Does the SI8430AB-C-IS require external start-up initialization?
No, the SI8430AB-C-IS requires no start-up initialization. Valid output data appears within 40 µs of power application (tSU), as specified in Table 3. This zero-initialization behavior simplifies system boot sequencing and enhances reliability in safety-critical applications where deterministic startup timing is essential.
What safety certifications apply to the SI8430AB-C-IS?
The SI8430AB-C-IS is certified to UL 1577 (2500 VRMS, 1 min), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE 0884-2 (IEC 60747-5-2). These approvals cover reinforced insulation for up to 600 VRMS working voltage and are explicitly stated in Tables 6 and 7 of the official Skyworks datasheet Rev. 1.7.
What is the channel-to-channel skew specification for the SI8430AB-C-IS?
The SI8430AB-C-IS has a maximum channel-to-channel skew (tPSK) of 1.8 ns, as specified in the "Si843xBx" timing row of Table 3. This value represents the worst-case difference in propagation delay between any two of its three isolated channels under identical operating conditions - critical for synchronized multi-signal isolation.
Is the SI8430AB-C-IS qualified for automotive applications?
Yes, the SI8430AB-C-IS is AEC-Q100 qualified (Grade 1, –40 to +125 °C), as explicitly stated in the Features section of the datasheet. This qualification covers stress testing for temperature cycling, humidity, and ESD - validating its suitability for under-hood and battery-system applications in hybrid electric vehicles.
SI8430AB-C-IS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm 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:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 35ns, 35ns
- Pulse Width Distortion (Max):
- 25ns
- 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
SI8430AB-C-IS FAQ
1.How can I place an order for SI8430AB-C-IS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8430AB-C-IS 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 SI8430AB-C-IS reliable?
The price and inventory of SI8430AB-C-IS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8430AB-C-IS is usually 5 days.
3.What payment methods are accepted for SI8430AB-C-IS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8430AB-C-IS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8430AB-C-IS?
SI8430AB-C-IS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8430AB-C-IS 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 SI8430AB-C-IS?
For technical support, including SI8430AB-C-IS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8430AB-C-IS requirements.
6.How does Aetrix verify that SI8430AB-C-IS is sourced from the original manufacturer or authorized distributors?
All SI8430AB-C-IS 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 SI8430AB-C-IS meets industry standards.
7.What is the process for return or replacement of SI8430AB-C-IS?
All SI8430AB-C-IS units undergo pre-shipment inspection (PSI). If there is an issue with SI8430AB-C-IS, 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 SI8430AB-C-IS part is unused and in its original packaging.
Return procedure for SI8430AB-C-IS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8430AB-C-IS 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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