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Skyworks Solutions Inc. SI83414AAA-IFR
- Part No.:
- SI83414AAA-IFR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 32-VFDFN Exposed Pad
- Datasheet:
-
SI83414AAA-IFR.pdf
- Description:
- DGTL ISOL 1500VRMS 4CH SPI 32DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,115
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Product details
Overview
SI83414AAA-IFR from Skyworks Solutions is a quad-channel isolated low-side smart switch IC designed for industrial load control in PLCs and motion controllers. It delivers 700 mA continuous current per channel (RON = 155 mΩ), supports 9–32 V switch supply and 2.25–5.5 V logic supply, and integrates galvanic isolation with >100 kV/µs CMTI for driving solenoids, relays, and lamps.
For engineers reviewing the SI83414AAA-IFR datasheet, SI83414AAA-IFR pinout, SI83414AAA-IFR application, or SI83414AAA-IFR equivalent, key selection considerations include its Inrush Current Mode (8 A for 20 ms), eight diagnostics accessible via SPI or open-drain LED pins, and compatibility with parallel interface control and fault-indicator feedback in safety-critical industrial systems.
Technical Context
The SI83414AAA-IFR implements four independent low-side switches with integrated current, voltage, and temperature sensing per channel, enabling real-time load monitoring and autonomous protection. Its RF-based CMOS isolation barrier provides 1.5 kVRMS safety rating and eliminates optocoupler aging while supporting bidirectional diagnostics communication separate from switch control paths.
Each channel features a multi-voltage smart output clamp for unlimited EAS handling and fast turn-OFF, plus dedicated undervoltage monitoring for both VDD1 and VDD2 supplies. Fault reporting includes overcurrent, overtemperature, open-circuit, and communication error detection - all configurable and cleared via SPI or hardware pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Low-side, open-drain configuration with internal current-sinking capability |
| Channels | 4 independent isolated channels with individual diagnostics and status indicators |
| Continuous Current | 700 mA per channel at 25 °C; enables direct drive of industrial solenoids and indicator lamps |
| RON | 155 mΩ typical; minimizes power loss and thermal rise under full load |
| Isolation Rating | 1.5 kVRMS (UL 1577 recognized); supports reinforced insulation in IEC 61131-2 compliant systems |
| CMTI | >100 kV/µs; ensures reliable operation in noisy factory environments with fast transients |
| Inrush Mode | 8 A for 20 ms; sustains lamp filament surge without tripping overload protection |
| Operating Temp | –40 to +125 °C; qualified for extended use in uncooled control cabinets and motor drives |
Pinout & Package
SI83414AAA-IFR is housed in a compact 9 mm × 9 mm DFN-32 package with exposed thermal pad (EP) for enhanced power dissipation in high-density industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Logic supply input | Powers digital interface (2.25–5.5 V); powers internal logic even when VDD2 is off via internal diode |
| VDD2 | Switch supply input | Provides power to all four low-side switches (9–32 V); monitored for UV warning (VDD2_WRN) |
| GND1 / GND2 | Logic / Switch ground | Galvanically isolated grounds separated by CMOS isolation barrier; no shared reference required |
| A1–A4 | Parallel input controls | Direct logic-level inputs for each channel; high = ON, low = OFF (active-high control) |
| B1–B4 | Switch outputs | Low-side output terminals; sink up to 700 mA each with integrated RON and clamp |
| OE | Output enable | Asynchronous global disable; forces all Bx outputs OFF regardless of A-input state |
| LED1–LED4 | Channel status indicators | Active-low open-drain outputs reflecting real-time ON/OFF state of corresponding Bx channel |
| FLT | Fault indicator | Active-low open-drain output asserting when any diagnostic fault (overcurrent, overtemp, etc.) is active |
| VDD2_WRN | Switch supply warning | Active-low open-drain flag indicating VDD2 is in warning range (9–18 V), not full UV shutdown |
Key Features
| Feature | Design Value |
|---|---|
| Multi-voltage smart clamp | Handles unlimited demagnetization energy (EAS) while enabling fast inductor turn-OFF and reducing arcing |
| Inrush Current Mode | Delivers 8 A peak for 20 ms to safely energize cold lamp filaments without false overcurrent trips |
| Eight diagnostics via SPI | Reports VDD1/VDD2 status, overcurrent, overtemperature, open-circuit, and communication errors with channel granularity |
| Dedicated fault & status pins | FLT, LED1–LED4, and VDD2_WRN provide immediate hardware-level visibility without SPI polling |
| RF-based CMOS isolation | Replaces aging optocouplers with 1.5 kVRMS-rated, 100+ kV/µs CMTI barrier and no LED degradation |
| IEC 61131-2 compliance | Meets industrial programmable controller immunity and safety requirements for deployment in PLC backplanes |
Applications
| Programmable Logic Controllers (PLCs) | Industrial Motion Controllers |
|---|---|
Use Scenario: Controlling multiple solenoid valves and indicator lamps on a modular I/O rack in a factory automation line. IC Role / Device Role / Timing Role: Low-side switch providing isolated, current-limited drive with real-time open-circuit detection and VDD2 supply monitoring. Use Value: Eliminates external flyback diodes and discrete protection circuitry while enabling predictive maintenance via open-load diagnostics. | Use Scenario: Driving brake coils and position feedback indicators in servo amplifier modules requiring functional safety. IC Role / Device Role / Timing Role: Galvanically isolated load driver with <10 µs update rate and fault signaling synchronized to motion control cycles. Use Value: Supports SIL-2 capable designs through dual-channel diagnostics (SPI + FLT pin) and 1.5 kVRMS isolation certified to UL 1577. |
| Smart Solid-State Relays | Industrial Data Acquisition Systems |
Use Scenario: Replacing electromechanical relays in DIN-rail mounted SSR modules for HVAC and pump control panels. IC Role / Device Role / Timing Role: Quad-channel low-side switch with integrated EAS clamp and inrush mode for resistive/inductive hybrid loads. Use Value: Enables silent, bounce-free switching with 100× longer lifetime than mechanical relays and no contact wear-out failure mode. | Use Scenario: Conditioning and isolating digital outputs from analog sensor signal chains in distributed I/O nodes. IC Role / Device Role / Timing Role: Isolated output stage converting microcontroller GPIO signals into robust, protected 24 V industrial outputs. Use Value: Provides channel-by-channel fault isolation so one failed sensor output does not compromise entire data acquisition subsystem. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-side isolated switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI83414BAA-IFR | No Inrush Current Mode; same 4-channel low-side, 700 mA, 155 mΩ, DFN-32 | Lacks 8 A/20 ms inrush support; suitable where lamp loads are absent | Select SI83414BAA-IFR only if inrush capability is unnecessary and cost optimization is prioritized. |
| SI83414ABA-IFR | Includes open-channel indicator (OPEN_CH pin); otherwise identical electrical specs | Provides additional open-circuit detection at system level via dedicated pin, not just SPI register | Choose SI83414ABA-IFR when hardware-level open-load alarm is required without SPI polling overhead. |
Compared with SI83414BAA-IFR and SI83414ABA-IFR, the SI83414AAA-IFR uniquely combines Inrush Current Mode with channel status LEDs and FLT output - making it optimal for mixed-resistive/inductive load systems needing both surge tolerance and immediate visual fault indication.
Availability
SI83414AAA-IFR is available at Aetrix Electronics and suitable for programmable logic controllers, industrial motion controllers, and smart solid-state relays requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical deployments.
Supply support for SI83414AAA-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 U.S.-based semiconductor company specializing in analog and mixed-signal connectivity solutions for infrastructure, automotive, and industrial markets.
The Si834x product line was engineered specifically for replacing optocoupler-based relay drivers in industrial control systems - delivering higher reliability, faster timing, and richer diagnostics while maintaining pin-compatible migration paths.
FAQ
What is the maximum continuous current per channel for SI83414AAA-IFR?
The SI83414AAA-IFR supports 700 mA continuous current per channel at 25 °C ambient, with RON of 155 mΩ. Derating applies above 25 °C per the thermal characteristics in the datasheet; full 700 mA operation requires adequate PCB copper area and airflow. This rating enables direct drive of standard 24 V solenoids and indicator lamps without external current boosting.
Does SI83414AAA-IFR support SPI communication?
No, SI83414AAA-IFR uses a parallel interface only - it lacks MOSI, MISO, SCLK, and NSS pins. Diagnostics are reported exclusively through hardware pins (LED1–LED4, FLT, VDD2_WRN). For SPI-capable variants, consider SI83414BDA-IFR or SI83414ADA-IFR, which share the same 4-channel low-side architecture but add serial configuration and monitoring.
What isolation voltage does SI83414AAA-IFR provide?
SI83414AAA-IFR provides 1.5 kVRMS galvanic isolation across its CMOS-based barrier, certified to UL 1577 (1500 Vrms for 1 minute) and compliant with IEC 61131-2. This rating supports reinforced insulation in industrial control equipment operating at 250 VAC mains potential, with transient immunity exceeding 100 kV/µs for robust noise rejection.
How does the Inrush Current Mode work in SI83414AAA-IFR?
The Inrush Current Mode in SI83414AAA-IFR allows each channel to deliver up to 8 A for 20 ms upon turn-on, specifically to handle cold-filament surges in incandescent lamps. This mode activates automatically during initial switch closure and deactivates once steady-state current is reached - preventing false overcurrent shutdown while maintaining full protection during normal operation.
Can SI83414AAA-IFR drive high-side loads?
No, SI83414AAA-IFR is configured exclusively as a low-side switch (sinking output). Its B1–B4 pins connect to load ground return paths, not to positive rails. For high-side drive, Skyworks offers the SI83408AFA-IFR (4-channel sourcing variant) or SI83401BAA-IFR (single-channel sourcing), both in the same Si834x family and DFN-32 package.
SI83414AAA-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:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- 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):
- 2.1µs, 2.2µs (Typ)
- Pulse Width Distortion (Max):
- 10µs (Min)
- Rise / Fall Time (Typ):
- 3µs, 3µs
- Voltage - Supply:
- 2.25V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-DFN (9x9)
SI83414AAA-IFR FAQ
1.How can I place an order for SI83414AAA-IFR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI83414AAA-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 SI83414AAA-IFR reliable?
The price and inventory of SI83414AAA-IFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI83414AAA-IFR is usually 5 days.
3.What payment methods are accepted for SI83414AAA-IFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI83414AAA-IFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI83414AAA-IFR?
SI83414AAA-IFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI83414AAA-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 SI83414AAA-IFR?
For technical support, including SI83414AAA-IFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI83414AAA-IFR requirements.
6.How does Aetrix verify that SI83414AAA-IFR is sourced from the original manufacturer or authorized distributors?
All SI83414AAA-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 SI83414AAA-IFR meets industry standards.
7.What is the process for return or replacement of SI83414AAA-IFR?
All SI83414AAA-IFR units undergo pre-shipment inspection (PSI). If there is an issue with SI83414AAA-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 SI83414AAA-IFR part is unused and in its original packaging.
Return procedure for SI83414AAA-IFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI83414AAA-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.
-
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.
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ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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