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Skyworks Solutions Inc. SI8430AB-C-ISR
- Part No.:
- SI8430AB-C-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8430AB-C-ISR.pdf
- Description:
- IC ISOLATOR 3CH 5.5V 16-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,750
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Product details
Overview
SI8430AB-C-ISR 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 across 2.70–5.5 V supply rails on both sides and delivers <6 mA per channel at 100 Mbps under 5 V, enabling high-speed signal isolation in motor control and isolated power supplies.
For engineers reviewing the SI8430AB-C-ISR datasheet, SI8430AB-C-ISR pinout, SI8430AB-C-ISR application, or SI8430AB-C-ISR equivalent, this page provides verified electrical specs, timing behavior, safety certifications (UL, CSA, VDE), and real-world use context for industrial and automotive isolation design.
Technical Context
The SI8430AB-C-ISR implements capacitive isolation with on-chip RF modulation/demodulation, delivering precise timing across temperature (–40 to +125 °C) without initialization. Its three independent channels support bidirectional or unidirectional data paths with enable-controlled output tri-state capability.
It features 85 Ω nominal output impedance, 25 kV/µs common-mode transient immunity (CMTI), and meets IEC 60747-5-2 (VDE 0884-2) for reinforced insulation at up to 560 VPEAK working voltage - validated for 2.5 kVRMS withstand rating per UL 1577 and CSA Component Notice 5A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 150 Mbps - supports high-speed serial interfaces like SPI, RS-485 transceiver control, and gate driver feedback loops. |
| Propagation Delay | 3.0–9.5 ns (typ/max) - enables sub-10 ns timing-critical isolation in PWM-driven systems and ADC sampling synchronization. |
| Channel-Channel Skew | 0.5–1.8 ns (typ/max) - ensures tight inter-channel alignment for multi-phase motor control and synchronized sensor readouts. |
| Isolation Voltage | 2.5 kVRMS (1 min) - certified for reinforced insulation in industrial PLCs and EV battery management systems. |
| Supply Range | 2.70–5.5 V on both VDD1 and VDD2 - allows interoperability with 3.3 V microcontrollers and 5 V legacy logic or analog circuitry. |
| Power @ 100 Mbps | <6 mA per channel at 5 V - reduces thermal load and simplifies power budgeting in compact, fanless enclosures. |
| CMTI | 25 kV/µs - maintains signal integrity in noisy environments such as inverters and switch-mode power supplies. |
Pinout & Package
SI8430AB-C-ISR is housed in a 16-pin wide-body SOIC package (package width = 7.5 mm), providing 8.0 mm minimum creepage and clearance for reinforced insulation compliance. Pin assignments are symmetric across VDD1/VDD2 domains with dedicated enable inputs per side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | VDD1, GND1, IN1–IN3, EN1, VDD1 | Primary-side power, ground, three input channels, and enable - supports independent control of all three isolator inputs. |
| 9, 10, 11, 12, 13, 14, 15, 16 | VDD2, GND2, OUT1–OUT3, EN2, VDD2 | Secondary-side power, ground, three output channels, and enable - enables tri-state control of outputs during system reset or sleep. |
Key Features
| Feature | Design Value |
|---|---|
| Triple-channel isolation | Three independent, bidirectional-capable data paths in one package - reduces component count vs. discrete single-channel isolators. |
| No start-up initialization | Valid output within 40 µs of power application - eliminates boot-time delays in safety-critical systems requiring immediate signal integrity. |
| Pulse width distortion | ≤2.5 ns (max) - preserves duty cycle fidelity for PWM signals used in gate drivers and digital power control. |
| 60-year life at rated voltage | Validated reliability under continuous 2.5 kVRMS stress - supports long-lifecycle deployments in industrial automation and energy infrastructure. |
| AEC-Q100 qualified | Grade 1 (–40 to +125 °C) qualification - confirms suitability for hybrid electric vehicle subsystems including battery monitoring and inverter control. |
Applications
| Industrial Motor Control | Isolated Switch-Mode Power Supply |
|---|---|
Use Scenario: Isolating PWM signals between MCU and three-phase IGBT/SiC gate drivers in servo drives. IC Role / Device Role / Timing Role: Triple-channel isolator transmitting complementary high-side/low-side gate drive signals with matched propagation delay. Use Value: Sub-2 ns channel skew ensures precise dead-time control; 150 Mbps headroom accommodates future firmware upgrades with higher-resolution PWM. |
Use Scenario: Providing feedback isolation for secondary-side voltage/current sensing in LLC resonant converters. IC Role / Device Role / Timing Role: Isolating analog-to-digital converter (ADC) outputs or digital error amplifier signals across primary-secondary boundary. Use Value: 25 kV/µs CMTI prevents false triggering during fast-switching transients; low power consumption minimizes auxiliary supply loading. |
| Hybrid Electric Vehicle BMS | Programmable Logic Controller I/O |
Use Scenario: Isolating cell voltage measurement data and balancing command signals in high-voltage battery packs (up to 800 V). IC Role / Device Role / Timing Role: Transmitting isolated digital telemetry and control commands between battery monitor ICs and MCU over reinforced barrier. Use Value: AEC-Q100 Grade 1 rating and 2.5 kVRMS isolation meet ISO 26262 ASIL-B functional safety requirements for traction battery systems. |
Use Scenario: Digitally isolating field I/O signals (e.g., 24 V DC sensors, solenoid controls) from PLC backplane logic. IC Role / Device Role / Timing Role: Replacing optocouplers in modular I/O modules to improve speed, lifetime, and temperature stability. Use Value: 125 °C ambient operation enables mounting near heat-generating power components; no LED aging or current transfer ratio degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM1300ARWZ-RL | 3-channel, 1 Mbps max data rate; 35 ns max propagation delay; 2.5 kVRMS isolation; SOIC-16 wide body. | Lower speed and higher latency - suitable only for slow control signaling (e.g., enable lines, status flags), not high-speed feedback. | Select when cost sensitivity outweighs speed needs and CMTI >15 kV/µs is sufficient. |
| ISO6731FDWR | 3-channel, 50 Mbps max; 11 ns max propagation delay; 5 kVRMS isolation; SOIC-16 wide body. | Higher isolation rating but lower data rate than SI8430AB-C-ISR - better for high-voltage medical equipment, less ideal for 100+ Mbps motor control loops. | Prefer where regulatory requirements demand >3.75 kVRMS test voltage or enhanced partial discharge performance. |
Compared with ADUM1300ARWZ-RL and ISO6731FDWR, SI8430AB-C-ISR uniquely balances 150 Mbps bandwidth, sub-10 ns timing, and AEC-Q100 qualification - making it optimal for next-generation EV inverters and high-fidelity industrial servo systems where speed, precision, and automotive-grade reliability converge.
Availability
SI8430AB-C-ISR is available at Aetrix Electronics and suitable for industrial motor control, hybrid electric vehicle battery management, and isolated switch-mode power supply designs requiring stable component supply and long-term lifecycle assurance.
Supply support for SI8430AB-C-ISR 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 wireless, automotive, and industrial markets.
The Si84xx family was engineered to replace optocouplers with robust, high-speed, low-power digital isolation - targeting applications demanding precision timing, high CMTI, and long-term reliability in harsh environments.
FAQ
What is the maximum operating temperature for SI8430AB-C-ISR?
The SI8430AB-C-ISR is rated for continuous operation from –40 °C to +125 °C ambient temperature at full 150 Mbps data rate and 5 V supply. This specification is validated per AEC-Q100 Grade 1 requirements and applies to both wide-body SOIC package variants.
Does SI8430AB-C-ISR support bidirectional communication on each channel?
SI8430AB-C-ISR provides three unidirectional channels - each configured as input on the primary side (pins 3–5) and output on the secondary side (pins 11–13). Bidirectional operation requires external logic or pairing with complementary isolators; the device itself does not implement automatic direction detection or internal bus arbitration.
What safety certifications apply to SI8430AB-C-ISR?
SI8430AB-C-ISR carries UL 1577 recognition (2500 VRMS, 1 min), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE certification to IEC 60747-5-2 (VDE 0884-2). These cover reinforced insulation with 560 VPEAK working voltage and are production-tested to 3.0 kVRMS for 1 second.
How does the enable function work on SI8430AB-C-ISR?
SI8430AB-C-ISR has two independent enable inputs: EN1 (pin 6) controls primary-side inputs, and EN2 (pin 14) controls secondary-side outputs. When asserted low, EN2 places all three outputs in high-impedance state within 9.2 ns (max); EN1 disables input sampling but does not affect output state directly.
Is SI8430AB-C-ISR pin-compatible with other Si843x variants?
Yes - SI8430AB-C-ISR shares identical pinout and package (16-pin wide-body SOIC) with all Si8430/31/35 family members, including SI8430BB-C-ISR and SI8431AB-C-ISR. Differences lie in channel configuration (3 vs. 4 vs. 5), data rate grade (A/B), and enable logic polarity - not physical layout.
SI8430AB-C-ISR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-ISR FAQ
1.How can I place an order for SI8430AB-C-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8430AB-C-ISR 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-ISR reliable?
The price and inventory of SI8430AB-C-ISR 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-ISR is usually 5 days.
3.What payment methods are accepted for SI8430AB-C-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8430AB-C-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8430AB-C-ISR?
SI8430AB-C-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8430AB-C-ISR 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-ISR?
For technical support, including SI8430AB-C-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8430AB-C-ISR requirements.
6.How does Aetrix verify that SI8430AB-C-ISR is sourced from the original manufacturer or authorized distributors?
All SI8430AB-C-ISR 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-ISR meets industry standards.
7.What is the process for return or replacement of SI8430AB-C-ISR?
All SI8430AB-C-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8430AB-C-ISR, 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-ISR part is unused and in its original packaging.
Return procedure for SI8430AB-C-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8430AB-C-ISR 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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