My Inquiry
My Account
Skyworks Solutions Inc. SI83414ABA-IFR
- Part No.:
- SI83414ABA-IFR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 32-VFDFN Exposed Pad
- Datasheet:
-
SI83414ABA-IFR.pdf
- Description:
- LINEAR IC'S
- Quantity:
- Payment:
- Shipping:
Inventory:4,599
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI83414ABA-IFR from Skyworks Solutions is a 4-channel isolated low-side smart switch IC with galvanic CMOS isolation, 0.7 A continuous current per channel (155 mΩ RON), 9–32 V switch supply, and integrated diagnostics including open-circuit detection and VDD2 undervoltage warning - deployed in industrial PLC output modules for driving solenoids and relays.
For engineers reviewing the SI83414ABA-IFR datasheet, SI83414ABA-IFR pinout, SI83414ABA-IFR application, or SI83414ABA-IFR equivalent, key selection criteria include its parallel-input + open-drain indicator interface, Inrush Current Mode (8 A/20 ms), multi-voltage clamp for unlimited EAS handling, and support for -40°C to +125°C operation in compact DFN-32 packaging.
Technical Context
The SI83414ABA-IFR implements four independent low-side switches with dedicated isolation channels, each featuring real-time voltage, current, and temperature sensing. Its RF-based CMOS isolation barrier delivers >100 kV/µs CMTI and 1.5 kVRMS safety rating, eliminating optocoupler aging and enabling deterministic timing.
Control uses parallel logic inputs with asynchronous OE enable and exposes diagnostics via open-drain LEDn pins (A1–A4) and FLT/VDD2_WRN indicators - no SPI required. The device supports Inrush Current Mode for lamp loads and employs a multi-voltage output clamp to manage demagnetization energy without external snubbers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Low-side, open-drain switch configuration - sinks load current to GND2, compatible with common-anode industrial actuators. |
| Continuous Current | 0.7 A per channel - enables direct drive of 24 V solenoids and relays without external MOSFETs. |
| RON | 155 mΩ max at 25°C - minimizes power loss and thermal rise under full load. |
| Switch Supply Range | 9 V–32 V - matches standard industrial 24 V DC systems with margin for brownout tolerance. |
| Logic Supply Range | 2.25 V–5.5 V - interfaces directly with 3.3 V or 5 V MCUs without level-shifting. |
| Isolation Rating | 1.5 kVRMS for 1 minute - certified to UL 1577, CSA 62368-1, and GB4943.1 for functional safety compliance. |
| CMTI | >100 kV/µs - ensures reliable operation in noisy factory environments with fast transients on shared ground planes. |
| Operating Temp | -40°C to +125°C - supports placement in uncooled control cabinets near power electronics. |
Pinout & Package
SI83414ABA-IFR is housed in a compact 9 mm × 9 mm, 32-pin DFN package with exposed thermal pad (EP) on underside for PCB heat dissipation. Pin 1 marked by dot; pins arranged in two rows (16 per side), with GND2 distributed across multiple pins for low-inductance return paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Logic supply input | Powers digital interface (2.25–5.5 V); internal diode allows VDD1 bootstrapping from logic inputs. |
| OE | Asynchronous output enable | Active-high global enable; forces all outputs OFF when low - critical for safe system reset. |
| GND1 | Logic ground reference | Return path for VDD1 and digital signals; galvanically isolated from GND2. |
| A1–A4 | Channel status indicators | Open-drain, active-low outputs reflecting real-time ON/OFF state of B1–B4 switches. |
| B1–B4 | Switch output terminals | Low-side power outputs; sink current to GND2 - connect to load cathodes or relay coils. |
| VDD2 | Switch supply input | High-voltage rail (9–32 V); powers output stage and internal protection circuitry. |
| GND2 | Power ground reference | Return path for B1–B4 loads; isolated from GND1; multiple pins reduce impedance and EMI. |
| FLT | Fault indicator | Open-drain, active-low signal asserting when any diagnostic fault (over-temp, over-current, etc.) is detected. |
| VDD2_WRN | VDD2 undervoltage warning | Open-drain, active-low output signaling VDD2 below 18 V threshold - enables early brownout response. |
| LED1–LED4 | Optional status LEDs | Not present on SI83414ABA-IFR - pin functions reserved but not bonded out per ordering guide. |
Key Features
| Feature | Design Value |
|---|---|
| Inrush Current Mode | Delivers 8 A peak for 20 ms to safely energize cold lamp filaments without tripping overcurrent protection. |
| Multi-voltage output clamp | Clamps inductive kickback at multiple voltage levels - handles unlimited EAS without external components or voltage spikes. |
| Open-circuit detection | Reports broken-wire faults on B1–B4 via FLT and status registers - eliminates false "ON" assumptions in safety-critical loops. |
| VDD2 undervoltage warning | VDD2_WRN pin asserts before full undervoltage shutdown - enables graceful system deactivation instead of abrupt failure. |
| Galvanic CMOS isolation | Replaces optocouplers with RF-modulated isolation - no LED degradation, 10× longer lifetime, and stable timing over temperature. |
| Industrial-grade diagnostics | Eight distinct fault types reported (e.g., over-temp, over-current, communication error) via dedicated pins - no SPI needed for basic monitoring. |
Applications
| Programmable Logic Controllers (PLCs) | Industrial Data Acquisition Systems |
|---|---|
Use Scenario: Output module in modular PLC rack driving 24 V DC solenoid valves and indicator lamps in factory automation lines. IC Role / Device Role / Timing Role: Low-side switch providing isolated, current-limited, and fault-monitored actuation control - replaces discrete optocoupler + MOSFET combinations. Use Value: Enables single-chip replacement of 4-channel opto-isolated drivers with built-in diagnostics, reducing board area by 40% and eliminating field-failure root causes like open-load undetection. | Use Scenario: Remote I/O node collecting sensor data and controlling local actuators in hazardous-area oil & gas monitoring systems. IC Role / Device Role / Timing Role: Isolated switch interface between microcontroller and explosion-proof solenoid actuators - operates reliably under high EMI and wide ambient temperature swings. Use Value: Delivers >100 kV/µs CMTI and -40°C to +125°C operation to maintain signal integrity and functional safety in harsh upstream environments. |
| Motion Controllers | Smart Solid-State Relays |
Use Scenario: Compact servo drive auxiliary board switching brake coils and limit switches in CNC machine tools. IC Role / Device Role / Timing Role: Fast-turning (10 µs update rate) low-side driver with precise inrush control - synchronizes mechanical braking with motion profiles. Use Value: Eliminates contact wear and bounce of electromechanical relays while supporting 8 A inrush for rapid brake engagement without nuisance tripping. | Use Scenario: DIN-rail mounted solid-state relay module replacing legacy electromechanical relays in building HVAC control panels. IC Role / Device Role / Timing Role: Four-channel isolated power switch with VDD2_WRN and FLT indicators - provides predictive maintenance visibility via undervoltage and fault alerts. Use Value: Reduces mean time to repair (MTTR) by 70% through immediate open-circuit and supply fault indication - no need for multimeter probing during commissioning. |
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 |
|---|---|---|---|
| SI83414BAA-IFR | No Inrush Current Mode; no VDD2_WRN pin; same 4-channel low-side, 0.7 A, DFN-32 package. | Lacks lamp-driving capability and early brownout warning - suitable only where loads are purely resistive or inductive without cold-start surge. | Select SI83414BAA-IFR only if Inrush Mode and VDD2_WRN are unused; otherwise SI83414ABA-IFR provides broader load compatibility. |
| SI83414ACA-IFR | Includes open-channel (OPEN_CH) indicator pin; omits VDD2_WRN; same electrical specs and package. | Optimized for wiring-integrity monitoring in safety-critical loops where broken-wire detection is prioritized over supply health reporting. | Choose SI83414ACA-IFR when OPEN_CH is required for SIL2-compliant diagnostics; SI83414ABA-IFR better suits general-purpose industrial control with supply monitoring needs. |
Compared with SI83414BAA-IFR and SI83414ACA-IFR, SI83414ABA-IFR uniquely combines Inrush Current Mode *and* VDD2_WRN in a 4-channel low-side configuration - enabling robust lamp driving and predictive brownout response without sacrificing diagnostic coverage or footprint.
Availability
SI83414ABA-IFR is available at Aetrix Electronics and suitable for programmable logic controllers, industrial data acquisition systems, and motion controllers requiring stable component supply across extended production lifecycles.
Supply support for SI83414ABA-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, with leadership in RF, timing, and isolation technologies.
The Si834x product line was designed specifically for industrial automation applications demanding high-reliability, galvanically isolated switching with embedded diagnostics - replacing aging optocoupler-based architectures with CMOS isolation and intelligent protection.
FAQ
What is the maximum continuous current per channel for SI83414ABA-IFR?
The SI83414ABA-IFR supports 0.7 A continuous current per channel at 25°C ambient, with RON specified at 155 mΩ max. Derating applies above 85°C case temperature per the thermal characteristics table in the datasheet. This rating enables direct drive of standard 24 V industrial solenoids and relays without external current boosting.
Does SI83414ABA-IFR require an SPI interface to operate?
No, SI83414ABA-IFR operates fully with parallel logic inputs (A1–A4) and OE enable - SPI is not required. Diagnostics are accessible via open-drain indicator pins (FLT, VDD2_WRN, A1–A4). SPI is optional and only needed for advanced register-level control or reading additional diagnostic details beyond what the pins provide.
What isolation certifications does SI83414ABA-IFR hold?
SI83414ABA-IFR carries pending UL 1577 recognition (1500 VRMS/1 min), CSA certification to 62368-1, and CQC approval to GB4943.1. Its 1.5 kVRMS isolation rating and >100 kV/µs CMTI meet requirements for reinforced insulation in industrial control equipment per IEC 61131-2.
How does the Inrush Current Mode function in SI83414ABA-IFR?
SI83414ABA-IFR's Inrush Current Mode delivers up to 8 A peak for 20 ms upon channel activation - specifically engineered for cold lamp filaments. It automatically reverts to 0.7 A continuous mode after the interval, preventing thermal damage while ensuring reliable ignition. This feature is enabled by default and requires no configuration.
Can SI83414ABA-IFR detect open-circuit faults on its output channels?
Yes, SI83414ABA-IFR provides open-circuit detection on all four B1–B4 outputs. When a load disconnect is sensed, it asserts the FLT pin and updates the channel status on A1–A4. This capability is implemented via internal current-sense circuitry and does not require external components or SPI access - visible immediately on the indicator pins.
What is the purpose of the VDD2_WRN pin on SI83414ABA-IFR?
The VDD2_WRN pin on SI83414ABA-IFR is an open-drain, active-low indicator that asserts when the switch supply voltage (VDD2) drops below 18 V - signaling an early-stage undervoltage condition before full shutdown occurs at ~9 V. This enables host systems to initiate controlled deactivation or alert operators prior to functional loss.
SI83414ABA-IFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si834x
- Package/Case:
- 32-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive 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)
SI83414ABA-IFR FAQ
1.How can I place an order for SI83414ABA-IFR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI83414ABA-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 SI83414ABA-IFR reliable?
The price and inventory of SI83414ABA-IFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI83414ABA-IFR is usually 5 days.
3.What payment methods are accepted for SI83414ABA-IFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI83414ABA-IFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI83414ABA-IFR?
SI83414ABA-IFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI83414ABA-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 SI83414ABA-IFR?
For technical support, including SI83414ABA-IFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI83414ABA-IFR requirements.
6.How does Aetrix verify that SI83414ABA-IFR is sourced from the original manufacturer or authorized distributors?
All SI83414ABA-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 SI83414ABA-IFR meets industry standards.
7.What is the process for return or replacement of SI83414ABA-IFR?
All SI83414ABA-IFR units undergo pre-shipment inspection (PSI). If there is an issue with SI83414ABA-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 SI83414ABA-IFR part is unused and in its original packaging.
Return procedure for SI83414ABA-IFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI83414ABA-IFR 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
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
