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Skyworks Solutions Inc. SI8430AB-C-IS1
- Part No.:
- SI8430AB-C-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8430AB-C-IS1.pdf
- Description:
- DGTL ISO 2500VRMS 3CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,112
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Product details
Overview
SI8430AB-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 with worst-case propagation delay <9.5 ns, 0.5 ns channel-channel skew, and 25 kV/µs common-mode transient immunity. It operates across 2.70–5.5 V supply rails and delivers <6 mA per channel at 100 Mbps (5 V), enabling high-speed isolated communication in motor control and industrial power systems.
For engineers reviewing the SI8430AB-C-IS1 datasheet, SI8430AB-C-IS1 pinout, SI8430AB-C-IS1 application, or SI8430AB-C-IS1 equivalent, this page provides verified electrical specs, safety certifications (UL, CSA, VDE), thermal derating data, and precise timing parameters critical for isolation barrier design in AEC-Q100-compliant automotive and industrial inverters.
Technical Context
The SI8430AB-C-IS1 implements capacitive isolation with on-chip RF modulation/demodulation circuitry, delivering DC-to-150 Mbps signal transmission without start-up initialization. Its dual-supply architecture (VDD1/VDD2) supports asymmetric voltage operation (e.g., 3.3 V on side 1, 5 V on side 2) while maintaining reinforced insulation rated to 2500 VRMS.
It features an enable input (ENx) that places outputs in high-impedance state within 9.2 ns (ten2), and achieves 6 ns minimum pulse width at 150 Mbps-enabling precise timing in gate driver feedback loops and isolated ADC sampling clocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 150 Mbps - supports high-resolution PWM feedback and fast serial interfaces like SPI clocked above 75 MHz. |
| Propagation Delay | 3.0–9.5 ns (typ/max) - enables sub-10 ns timing-critical isolation in IGBT/SiC gate driver circuits. |
| Channel-Channel Skew | 0.5 ns (typ) - ensures matched timing across three isolated channels for synchronized motor phase control. |
| CMTI | 25 kV/µs - maintains signal integrity during fast-switching transients in 600 V+ power inverters. |
| Supply Voltage Range | 2.70–5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Isolation Rating | 2500 VRMS (1 min) - certified for reinforced insulation per UL 1577, CSA 5A, and VDE 0884-2. |
| Operating Temperature | –40 to +125 °C - qualified for under-hood automotive and industrial ambient environments at full 150 Mbps data rate. |
| Power Consumption | <6 mA per channel @ 100 Mbps / 5 V - reduces thermal load in densely packed isolated power supplies. |
Pinout & Package
SI8430AB-C-IS1 is housed in a 16-pin wide-body SOIC package (package width 10.3 mm, creepage/clearance ≥8.0 mm), optimized for 2500 VRMS reinforced insulation and high-voltage industrial applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Side 1 inputs/outputs/enable | Pins 1–3: CH1–CH3 inputs; Pins 4–6: CH1–CH3 outputs; Pins 7–8: EN1, EN2 (channel enables) |
| 9, 10, 11, 12, 13, 14, 15, 16 | Side 2 inputs/outputs/enable | Pins 9–11: CH1–CH3 outputs; Pins 12–14: CH1–CH3 inputs; Pins 15–16: EN3, VDD2 bypass |
| VDD1 (Pin 16) | Side 1 supply | Must be decoupled with 0.1 µF ceramic capacitor close to pin; supports 2.70–5.5 V operation. |
| VDD2 (Pin 8) | Side 2 supply | Independent rail; enables galvanic separation between controller and power stage domains. |
| GND1 (Pin 4) | Side 1 ground | Reference for Side 1 I/O and VDD1; must be isolated from GND2 by ≥8 mm clearance. |
| GND2 (Pin 12) | Side 2 ground | Reference for Side 2 I/O and VDD2; forms isolation barrier with GND1. |
Key Features
| Feature | Design Value |
|---|---|
| Triple-channel isolation | Three independent bidirectional or unidirectional channels in one SOIC-16 package-reduces BOM count vs. discrete optocouplers. |
| No start-up initialization | Valid output data available within 40 µs of power-on (tSU)-eliminates boot-time delays in safety-critical motor drives. |
| Precision timing | 1.5 ns pulse width distortion and 2 ns propagation delay skew-enables accurate PWM edge alignment across phases. |
| AEC-Q100 qualification | Grade 1 (–40 to +125 °C) qualification-validates reliability for automotive traction inverter and onboard charger applications. |
| RoHS-compliant wide-body SOIC | 10.3 mm body width with 8.0 mm creepage-meets IEC 60664-1 requirements for 600 VRMS working voltage systems. |
Applications
| Industrial Motor Control | Isolated Switch-Mode Power Supply |
|---|---|
|
Use Scenario: Isolating gate driver signals and current-sense feedback in 3-phase BLDC inverters. IC Role / Device Role / Timing Role: Provides three synchronized, low-skew isolation paths for upper/lower gate drive and fault reporting. Use Value: Enables <0.5 ns inter-channel skew to maintain precise 120° phase timing and prevent shoot-through in SiC-based inverters. |
Use Scenario: Isolating primary-side PWM controller feedback from secondary-side voltage/current sensing. IC Role / Device Role / Timing Role: Transmits error amplifier output and overvoltage/overcurrent flags across isolation barrier with <9.5 ns delay. Use Value: Supports >1 MHz switching frequencies with stable loop response due to sub-10 ns propagation and 25 kV/µs CMTI. |
| Hybrid Electric Vehicle Onboard Charger | Isolated Data Acquisition |
|
Use Scenario: Signal isolation between MCU and AC/DC rectifier control in bidirectional OBC systems. IC Role / Device Role / Timing Role: Carries isolated PWM, enable, and status signals between 3.3 V MCU domain and 5 V high-side driver domain. Use Value: Dual-supply operation (2.7–5.5 V per side) eliminates level-shifter components and reduces layout complexity. |
Use Scenario: Isolating serial interface lines (SPI SCLK/MOSI/MISO) between isolated ADC/DAC and host processor. IC Role / Device Role / Timing Role: Delivers three independent isolation channels for clock, data, and chip-select with matched propagation. Use Value: 150 Mbps capability supports oversampled 24-bit ADC data streaming at >1 MSPS without timing jitter accumulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM1300ARWZ | 3-channel, 100 Mbps max, 35 ns max propagation delay, SOIC-16 narrow body (4.01 mm creepage) | Limited to 100 Mbps and higher timing uncertainty-unsuitable for >100 kHz PWM feedback in SiC inverters. | Select when cost sensitivity outweighs speed/timing needs and 2500 VRMS rating is not required. |
| ISO6731FDWR | 3-channel, 50 Mbps max, 25 ns max propagation delay, SOIC-16 wide body, 5000 VRMS isolation | Lower data rate and higher power consumption (>10 mA/channel @ 50 Mbps)-not viable for high-speed motor control loops. | Prefer where higher isolation voltage (5000 VRMS) is mandatory and 150 Mbps operation is unnecessary. |
Compared with ADUM1300ARWZ and ISO6731FDWR, SI8430AB-C-IS1 uniquely combines 150 Mbps bandwidth, <9.5 ns propagation delay, and 2500 VRMS reinforced insulation in a wide-body SOIC-making it optimal for timing-critical, high-voltage industrial and automotive power systems requiring minimal skew and ultra-fast transient immunity.
Availability
SI8430AB-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 and long-term lifecycle support.
Supply support for SI8430AB-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.
The Si84xx family was designed specifically for high-reliability, high-speed digital isolation in automotive, industrial, and energy infrastructure applications-emphasizing low power, precision timing, and safety certification compliance.
FAQ
What is the maximum data rate supported by SI8430AB-C-IS1?
The SI8430AB-C-IS1 supports a maximum data rate of 150 Mbps under specified conditions (VDD = 5 V, TA = –40 to +125 °C, CL = 15 pF). This is confirmed in Table 3's timing characteristics for Si843xBx variants, and applies directly to SI8430AB-C-IS1 as indicated by its "B" speed grade suffix. Performance remains stable across its full operating temperature and voltage range.
Does SI8430AB-C-IS1 require external startup configuration?
No, SI8430AB-C-IS1 requires no start-up initialization. Valid output data is available within 40 µs of power application (tSU), as specified in Table 3. This zero-initialization behavior simplifies system boot sequences and improves reliability in safety-critical applications such as motor drives and automotive chargers where deterministic power-on timing is essential.
What safety certifications does SI8430AB-C-IS1 hold?
SI8430AB-C-IS1 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 certifications apply to the 2.5 kVRMS-rated wide-body SOIC package and are production-tested to 3.0 kVRMS for 1 second, as documented in Tables 6 and 7 of the official datasheet.
Can SI8430AB-C-IS1 operate with different supply voltages on each side?
Yes, SI8430AB-C-IS1 supports independent supply rails: VDD1 (pins 16, 4) and VDD2 (pins 8, 12) each accept 2.70–5.5 V. This allows mixed-voltage system interfacing-for example, connecting a 3.3 V MCU (Side 1) to a 5 V gate driver IC (Side 2)-without external level shifters, as confirmed in Table 1 and functional description section 2.3 of the datasheet.
What is the channel-to-channel timing skew for SI8430AB-C-IS1?
The channel-to-channel skew (tPSK) for SI8430AB-C-IS1 is 0.5 ns (typical) and ≤1.8 ns (maximum) at 150 Mbps, as specified in Table 3's timing characteristics for Si843xBx devices. This low skew ensures synchronized signal transfer across all three channels-critical for balanced PWM generation and multi-phase current sensing in motor control applications.
SI8430AB-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:
- 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-IS1 FAQ
1.How can I place an order for SI8430AB-C-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8430AB-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 SI8430AB-C-IS1 reliable?
The price and inventory of SI8430AB-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 SI8430AB-C-IS1 is usually 5 days.
3.What payment methods are accepted for SI8430AB-C-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8430AB-C-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8430AB-C-IS1?
SI8430AB-C-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8430AB-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 SI8430AB-C-IS1?
For technical support, including SI8430AB-C-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8430AB-C-IS1 requirements.
6.How does Aetrix verify that SI8430AB-C-IS1 is sourced from the original manufacturer or authorized distributors?
All SI8430AB-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 SI8430AB-C-IS1 meets industry standards.
7.What is the process for return or replacement of SI8430AB-C-IS1?
All SI8430AB-C-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8430AB-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 SI8430AB-C-IS1 part is unused and in its original packaging.
Return procedure for SI8430AB-C-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8430AB-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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