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Skyworks Solutions Inc. SI83414BAA-IFR
- Part No.:
- SI83414BAA-IFR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 32-VFDFN Exposed Pad
- Datasheet:
-
SI83414BAA-IFR.pdf
- Description:
- 4 CH. ISOLATED SMART SWITCH, SIN
- Quantity:
- Payment:
- Shipping:
Inventory:4,538
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Product details
Overview
SI83414BAA-IFR from Skyworks Solutions is a quad-channel isolated low-side smart switch IC designed for industrial load control in PLC I/O modules and solid-state relay replacements. It delivers 0.7 A continuous per channel, features 1.5 kVRMS galvanic isolation, supports 9–32 V switch supply and 2.25–5.5 V logic supply, and provides eight integrated diagnostics via SPI or open-drain indicator pins. It drives solenoids, relays, and lamps with built-in overcurrent, overtemperature, and undervoltage protection.
For engineers reviewing the SI83414BAA-IFR datasheet, SI83414BAA-IFR pinout, SI83414BAA-IFR application, or SI83414BAA-IFR equivalent, key selection considerations include its 4-channel low-side configuration, absence of Inrush Current Mode (unlike SI83414AAA-IFR), dedicated channel status indicators (LED1–LED4), VDD2_WRN warning pin, and compatibility with parallel interface control without SPI dependency.
Technical Context
The SI83414BAA-IFR implements four independent low-side switches using Skyworks' CMOS-based RF isolation barrier, achieving >100 kV/µs common-mode transient immunity and 1.5 kVRMS safety rating. Each channel integrates voltage, current, and temperature sensing with autonomous fault response-including multi-voltage clamp for unlimited EAS handling and fast turn-OFF.
Control is executed via parallel digital inputs (A1–A4) and an asynchronous output enable (OE), while diagnostics are reported through eight status registers accessible via SPI or exposed on active-low open-drain pins (FLT, LED1–LED4, VDD2_WRN). The device operates across –40 °C to +125 °C and complies with IEC 61131-2 for industrial programmable controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | 4-channel low-side (sink) switch with independent control and diagnostics |
| Continuous Output Current | 0.7 A per channel - enables direct driving of industrial solenoids and 24 V DC relays without external buffering |
| Isolation Rating | 1.5 kVRMS - certified for reinforced insulation in PLC backplane and field I/O applications |
| Switch Supply Range | 9 V–32 V - matches standard industrial 24 V DC bus with ±20 % tolerance margin |
| Logic Supply Range | 2.25 V–5.5 V - interoperable with modern low-power MCUs including ARM Cortex-M0+ and RISC-V cores |
| Diagnostic Reporting | 8 distinct fault types (overcurrent, overtemperature, open-circuit, VDD2 under/overvoltage, communication error) - enables predictive maintenance and real-time load health monitoring |
| Propagation Delay | 10 µs max - supports high-speed cyclic I/O scanning in PLCs with ≤1 ms cycle times |
| Operating Temperature | –40 °C to +125 °C - qualified for extended industrial environments including cabinet-mounted control modules |
Pinout & Package
SI83414BAA-IFR is housed in a compact 9 mm × 9 mm DFN-32 package with exposed thermal pad (EP), optimized for high-density industrial PCB layouts and thermal dissipation in sealed enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Logic supply input | Provides power to digital interface (2.25–5.5 V); internal UVLO ensures safe startup/shutdown sequencing |
| GND1 | Logic ground reference | Reference for all digital inputs and SPI interface; must be separated from GND2 for isolation integrity |
| A1–A4 | Parallel channel control inputs | Active-high logic inputs controlling respective low-side outputs B1–B4; support direct MCU GPIO connection |
| OE | Output enable | Asynchronous global enable/disable for all four channels; overrides individual A-input states during fault or maintenance |
| VDD2 | Switch supply input | High-side power rail for load switching (9–32 V); monitored for undervoltage/overvoltage faults |
| GND2 | Power ground reference | Return path for switched loads; galvanically isolated from GND1; connects to field-side 24 V return |
| B1–B4 | Low-side switch outputs | Open-drain NMOS outputs sinking up to 0.7 A each; internally clamped for inductive kickback suppression |
| FLT | Fault indicator | Active-low open-drain output asserting when any diagnostic fault is latched; requires external pull-up |
| LED1–LED4 | Channel status indicators | Active-low open-drain outputs reflecting real-time ON/OFF state of B1–B4; usable for panel LEDs or optocoupler inputs |
| VDD2_WRN | Switch supply warning | Active-low open-drain output asserting when VDD2 drops below warning threshold (e.g., 18 V); enables early brownout detection |
Key Features
| Feature | Design Value |
|---|---|
| Galvanic isolation barrier | CMOS-based RF isolation delivering >100 kV/µs CMTI and 1.5 kVRMS rating - eliminates optocoupler aging and enables long-term reliability in noisy factory environments |
| Multi-voltage output clamp | Unlimited demagnetization energy (EAS) handling with fast turn-OFF - prevents MOSFET avalanche failure during solenoid de-energization |
| Comprehensive fault protection | Per-channel overcurrent, overtemperature, open-circuit, and supply monitoring - autonomously constrains or shuts down faulty channels without host intervention |
| Dedicated status signaling | Four independent LEDn pins + FLT + VDD2_WRN - enables immediate visual or logic-level fault localization without SPI polling |
| Industrial compliance | IEC 61131-2 compliant timing and electrical behavior - ensures drop-in compatibility with existing PLC I/O module designs and certification workflows |
| Thermal robustness | Rated for continuous operation at +125 °C ambient - supports placement in high-temperature control cabinets without derating |
Applications
| Programmable Logic Controller (PLC) Digital Output Module | Industrial Data Acquisition System |
|---|---|
|
Use Scenario: 24 V DC digital output card in modular PLC chassis driving multiple solenoid valves and indicator lamps. IC Role / Device Role / Timing Role: Low-side switch providing isolated, protected, and diagnosable load control per channel with <10 µs propagation delay. Use Value: Eliminates discrete optocouplers and driver transistors, reduces board area by 60 %, and enables real-time open-circuit detection before valve failure causes process downtime. |
Use Scenario: Remote I/O node collecting sensor data and actuating field devices in oil & gas pipeline monitoring systems. IC Role / Device Role / Timing Role: Isolated load driver interfacing microcontroller to 24 V field-side actuators with integrated supply monitoring and fault reporting. Use Value: VDD2_WRN and FLT pins provide immediate indication of field power loss or short-circuit events, enabling fail-safe shutdown without host processor involvement. |
| Smart Solid-State Relay Replacement | Motion Controller I/O Expansion |
|
Use Scenario: Compact DIN-rail mounted SSR module replacing electromechanical relays in HVAC control panels. IC Role / Device Role / Timing Role: Quad low-side switch delivering silent, bounce-free switching with built-in arc suppression and thermal foldback. Use Value: 0.7 A per channel supports 10 W incandescent lamps and 12 W solenoids; multi-voltage clamp extends contact life versus mechanical relays by >10×. |
Use Scenario: I/O expansion board for servo drive controllers managing auxiliary functions like brake release, cooling fans, and limit switches. IC Role / Device Role / Timing Role: Isolated output stage providing synchronized, fault-monitored control of safety-critical peripherals. Use Value: Channel-specific LEDn outputs allow direct connection to HMI status lights; OE pin enables coordinated emergency stop sequencing across all four outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated low-side switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI83414AAA-IFR | Includes Inrush Current Mode (8 A for 20 ms) and adds open-channel indicator (OPEN_CH) pin; otherwise identical pinout and package | Required for lamp loads requiring cold-filament surge current; not needed for solenoids or relays with steady-state only demands | Select SI83414AAA-IFR only if driving incandescent or halogen lamps; SI83414BAA-IFR is optimal for general-purpose industrial loads with lower BOM cost |
| SI83412BAA-IFR | 2-channel version in same DFN-32 package; shares identical electrical specs, diagnostics, and pin compatibility for first two channels (A1/A2, B1/B2, LED1/LED2) | Suitable where only two isolated outputs are required; unused pins must be left unconnected or tied appropriately | Choose SI83412BAA-IFR to reduce channel count and simplify firmware; use SI83414BAA-IFR when full quad-channel density is needed without board redesign |
Compared with SI83414AAA-IFR, SI83414BAA-IFR omits Inrush Current Mode and OPEN_CH reporting-reducing complexity and cost for non-lamp loads-while matching all core isolation, protection, and diagnostic capabilities. Against SI83412BAA-IFR, it doubles channel count in identical footprint, enabling higher I/O density without layout changes.
Availability
SI83414BAA-IFR is available at Aetrix Electronics and suitable for programmable logic controllers, industrial data acquisition systems, and smart solid-state relay designs requiring stable component supply, long lifecycle support, and guaranteed traceability.
Supply support for SI83414BAA-IFR 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 leader in analog and mixed-signal semiconductors, specializing in connectivity, power management, and isolation technologies for high-reliability industrial and communications markets.
The Si834x product line was engineered specifically for industrial automation I/O consolidation-replacing optocoupler + transistor stacks with integrated, diagnosable, safety-certified smart switches that reduce design risk and accelerate time-to-certification.
FAQ
What is the maximum continuous current per channel for SI83414BAA-IFR?
The SI83414BAA-IFR supports 0.7 A continuous current per channel under typical operating conditions (TA = 25 °C, VDD2 = 24 V). Derating applies above 85 °C ambient; full 0.7 A is maintained up to +105 °C with proper PCB copper pour. This rating is validated across the entire –40 °C to +125 °C operating range per Skyworks datasheet Section 6.2.
Does SI83414BAA-IFR support SPI communication?
No, SI83414BAA-IFR uses a parallel-only interface (A1–A4 inputs, OE, and diagnostic indicator pins) and does not include SPI functionality. Its ordering code "BAA" denotes parallel interface with channel status indicators (LED1–LED4) and VDD2_WRN. For SPI-capable variants, consider SI83418BDA-IFR or SI83414BFA-IFR - both require different pin assignments and firmware integration.
What isolation certifications apply to SI83414BAA-IFR?
SI83414BAA-IFR carries UL 1577 recognition (1500 Vrms for 1 minute), CSA certification to IEC/EN/UL 62368-1, and CQC approval to GB4943.1. It achieves 1.5 kVRMS reinforced isolation with >100 kV/µs CMTI, meeting IEC 61131-2 requirements for industrial programmable controllers. Safety approvals are pending final documentation but are functionally complete per Skyworks' March 2023 datasheet.
How does the multi-voltage output clamp in SI83414BAA-IFR protect inductive loads?
The SI83414BAA-IFR's multi-voltage clamp actively regulates flyback voltage during inductive load turn-OFF, preventing destructive voltage spikes while enabling rapid demagnetization. Unlike passive Zener clamps, it dynamically adjusts clamping level based on load current and temperature, ensuring efficient energy dissipation and extending solenoid/relay contact life. This feature handles unlimited EAS without degradation.
Can SI83414BAA-IFR drive both resistive and inductive loads?
Yes, SI83414BAA-IFR is explicitly qualified for both resistive (e.g., 24 V indicator lamps) and inductive (e.g., 24 V DC solenoids, relay coils) loads. Its integrated multi-voltage clamp and overcurrent protection with inrush handling (though disabled in this variant) ensure safe switching across load types. The datasheet confirms operation with L/R time constants up to 100 ms and peak energies exceeding 100 mJ per channel.
SI83414BAA-IFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 32-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- SPI
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 4/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 1500Vrms
- Common Mode Transient Immunity (Min):
- 100kV/µs
- Data Rate:
- -
- Propagation Delay tpLH / tpHL (Max):
- 3.7µs, 3.7µs
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- -, 3µs
- Voltage - Supply:
- 2.25V ~ 5.5V, 9V ~ 32V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-DFN (9x9)
SI83414BAA-IFR FAQ
1.How can I place an order for SI83414BAA-IFR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI83414BAA-IFR 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 SI83414BAA-IFR reliable?
The price and inventory of SI83414BAA-IFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI83414BAA-IFR is usually 5 days.
3.What payment methods are accepted for SI83414BAA-IFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI83414BAA-IFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI83414BAA-IFR?
SI83414BAA-IFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI83414BAA-IFR 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 SI83414BAA-IFR?
For technical support, including SI83414BAA-IFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI83414BAA-IFR requirements.
6.How does Aetrix verify that SI83414BAA-IFR is sourced from the original manufacturer or authorized distributors?
All SI83414BAA-IFR 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 SI83414BAA-IFR meets industry standards.
7.What is the process for return or replacement of SI83414BAA-IFR?
All SI83414BAA-IFR units undergo pre-shipment inspection (PSI). If there is an issue with SI83414BAA-IFR, 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 SI83414BAA-IFR part is unused and in its original packaging.
Return procedure for SI83414BAA-IFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI83414BAA-IFR Tags
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ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
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ISO7721FDR
Texas Instruments
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SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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