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Skyworks Solutions Inc. SI83414BBA-IFR
- Part No.:
- SI83414BBA-IFR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 32-VFDFN Exposed Pad
- Datasheet:
-
SI83414BBA-IFR.pdf
- Description:
- FOUR CHANNEL SOURCING OUTPUT WIT
- Quantity:
- Payment:
- Shipping:
Inventory:2,555
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Product details
Overview
SI83414BBA-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 2.25–5.5 V logic supply-designed for driving solenoids, relays, and lamps in industrial PLC I/O modules.
For engineers reviewing the SI83414BBA-IFR datasheet, SI83414BBA-IFR pinout, SI83414BBA-IFR application, or SI83414BBA-IFR equivalent, key selection considerations include its parallel-only interface (no SPI), dedicated open-drain LED status pins, absence of VDD2 warning indicator, and lack of Inrush Current Mode-making it suitable for cost-sensitive, high-reliability discrete load switching where diagnostics are monitored via external indicators rather than serial bus.
Technical Context
The SI83414BBA-IFR implements four independent low-side switches with integrated voltage, current, and temperature sensing, each isolated across a 1.5 kVRMS CMOS barrier offering >100 kV/µs CMTI. Its control path uses dedicated parallel input lines and an asynchronous OE pin, with no SPI interface-distinguishing it from Si834x variants with serial capability.
Each channel features a multi-voltage smart output clamp for unlimited EAS handling and fast turn-OFF, plus overcurrent, overtemperature, and undervoltage protection. Fault reporting is limited to active-low FLT and four individual LEDn pins-no VDD2_WRN or OPEN_CH indicators-per its "BBA" ordering code configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Low-side, open-drain switch - sinks current to GND2, requires external pull-up for load return path |
| Channels | 4 independent isolated outputs - enables compact multi-load control without external optocouplers or discrete drivers |
| Continuous Current | 0.7 A per channel - supports industrial solenoids and 24 V DC relays with thermal derating up to 125 °C |
| RON | 155 mΩ max - minimizes conduction loss and self-heating at full rated current |
| Switch Supply Range | 9–32 V - compatible with standard industrial 24 V DC power rails and brown-out tolerant down to 9 V |
| Logic Supply Range | 2.25–5.5 V - interfaces directly with 3.3 V or 5 V MCUs without level-shifting |
| Isolation Rating | 1.5 kVRMS - certified for functional safety in PLC backplane and field-side separation |
| Operating Temp | −40 to +125 °C - qualified for harsh industrial environments including cabinet-mounted control modules |
Pinout & Package
SI83414BBA-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 under sustained 0.7 A loads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Logic supply input | Powers internal digital circuitry and isolation transmitter; accepts 2.25–5.5 V |
| GND1 | Logic ground reference | Reference for VDD1 and all logic-level inputs; must be separated from GND2 by isolation barrier |
| OE | Asynchronous output enable | Active-high global enable; forces all Bn outputs OFF when low, independent of An states |
| A1–A4 | Parallel channel control inputs | Direct logic-level signals (H/L) controlling B1–B4 outputs; no internal pull-ups |
| B1–B4 | Low-side switched outputs | Open-drain NMOS outputs sinking up to 0.7 A each; require external load return path |
| FLT | Global fault indicator | Active-low open-drain output asserting when any channel reports overcurrent, overtemperature, or supply fault |
| LED1–LED4 | Per-channel status indicators | Active-low open-drain outputs reflecting real-time ON/OFF state of B1–B4; usable for panel LEDs or external logic |
| VDD2 | Switch supply input | Powers output stage and clamp circuitry; 9–32 V range with UVLO at ~9 V |
| GND2 | Power ground reference | Return path for VDD2 and all Bn outputs; galvanically isolated from GND1 |
| DNC/NC | No-connect terminals | Reserved or unused pins; must be left floating or tied to GND2 per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Galvanic CMOS isolation | 1.5 kVRMS rating with >100 kV/µs CMTI - eliminates optocoupler aging and enables longer lifetime in PLC field-side interfaces |
| Multi-voltage smart clamp | Handles unlimited demagnetization energy (EAS) - protects against inductive kickback from 24 V solenoids without external snubbers |
| Per-channel diagnostics | Four dedicated LEDn pins + global FLT - provides immediate visual or logic-level fault/status feedback without SPI overhead |
| Robust protection suite | Integrated overcurrent, overtemperature, and undervoltage lockout - prevents latch-up and thermal runaway during short-circuit or overload events |
| Industrial-grade operating range | −40 to +125 °C ambient - validated for use in uncooled control cabinets and outdoor-rated automation enclosures |
| Compact DFN-32 package | 9 × 9 mm footprint with exposed thermal pad - supports high-density I/O module designs while enabling efficient heat transfer to PCB copper |
Applications
| Programmable Logic Controller (PLC) Digital Output Module | Industrial Motion Controller I/O Expansion |
|---|---|
Use Scenario: Driving 24 V DC solenoid valves and relay coils in modular PLC chassis with strict isolation requirements between controller and field wiring. IC Role / Device Role / Timing Role: Low-side switch providing galvanically isolated load control with <10 µs update rate and built-in fault detection. Use Value: Replaces 4 discrete optocouplers + MOSFET drivers, reducing BOM count and improving reliability over 10-year field life. | Use Scenario: Adding isolated digital outputs to servo drive auxiliary I/O boards for emergency stop monitoring and auxiliary actuator control. IC Role / Device Role / Timing Role: Isolated low-side driver interfacing motion controller GPIOs to industrial actuators with real-time status feedback via LEDn pins. Use Value: Enables deterministic response (<10 µs propagation delay) and immediate visual fault indication without MCU polling or SPI transaction overhead. |
| Smart Solid-State Relay (SSR) Board | Factory Automation Data Acquisition Node |
Use Scenario: Building compact, DIN-rail mountable SSRs for replacing electromechanical relays in packaging machinery and conveyor controls. IC Role / Device Role / Timing Role: Four-channel isolated switch delivering zero-crossing–free DC switching with integrated EAS clamp for inductive loads. Use Value: Eliminates contact wear and arcing, extends service interval, and supports silent operation in noise-sensitive production environments. | Use Scenario: Integrating isolated digital outputs into distributed I/O nodes that collect sensor data and execute local control logic in automotive assembly lines. IC Role / Device Role / Timing Role: Field-side load driver with fault reporting via FLT and LEDn pins, synchronized to local microcontroller timing without serial bus contention. Use Value: Reduces system latency by avoiding SPI arbitration and enables plug-and-play replacement of legacy relay-based nodes. |
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 |
|---|---|---|---|
| SI83414AAA-IFR | Includes Inrush Current Mode (8 A for 20 ms) and VDD2_WRN indicator; same pinout and package | Required for lamp loads needing high inrush tolerance; adds diagnostic visibility for switch supply margin | Select SI83414AAA-IFR when driving incandescent indicators or cold-filament lamps; otherwise SI83414BBA-IFR offers lower cost and simpler interface |
| SI83414ABA-IFR | Includes OPEN_CH indicator and VDD2_WRN; no Inrush Current Mode; same pinout and package | Needed for open-load detection in safety-critical valve position feedback circuits | Choose SI83414ABA-IFR if detecting disconnected solenoids is mandatory; SI83414BBA-IFR omits this feature to reduce pin count and cost |
Compared with SI83414AAA-IFR and SI83414ABA-IFR, the SI83414BBA-IFR provides the most cost-effective 4-channel low-side isolation for standard industrial loads without advanced diagnostics-ideal for volume PLC output modules where LEDn status and FLT are sufficient for system-level fault management.
Availability
SI83414BBA-IFR is available at Aetrix Electronics and suitable for programmable logic controllers, industrial motion controllers, and smart solid-state relays requiring stable component supply and long-term industrial lifecycle support.
Supply support for SI83414BBA-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 semiconductor company specializing in analog and mixed-signal connectivity solutions for infrastructure, automotive, and industrial markets.
The Si834x product line was developed to replace aging optocoupler-based relay drivers in industrial automation, delivering higher reliability, faster switching, and integrated diagnostics in a single CMOS-isolated IC.
FAQ
What is the maximum continuous current per channel for SI83414BBA-IFR?
The SI83414BBA-IFR supports 0.7 A continuous current per channel at 125 °C ambient, with RON ≤ 155 mΩ. This rating assumes proper PCB thermal design using the exposed pad and adequate copper area on GND2. Derating applies above 85 °C ambient per the thermal characteristics table in the datasheet.
Does SI83414BBA-IFR support SPI communication for diagnostics?
No, SI83414BBA-IFR does not support SPI. It uses a parallel-only interface with dedicated An inputs and LEDn/FLT status pins. For SPI-capable alternatives, consider SI83418BDA-IFR or SI83418BFA-IFR-both share the same 4-channel low-side architecture but add serial diagnostic access.
What isolation rating does SI83414BBA-IFR have, and is it safety-certified?
SI83414BBA-IFR provides 1.5 kVRMS galvanic isolation with UL 1577 recognition (pending final certification), CSA 62368-1 compliance, and CQC GB4943.1 approval. Its CMOS-based barrier achieves >100 kV/µs common-mode transient immunity, exceeding optocoupler performance in noisy industrial environments.
Can SI83414BBA-IFR drive inductive loads like solenoids safely?
Yes, SI83414BBA-IFR includes a multi-voltage smart output clamp that handles unlimited demagnetization energy (EAS), protecting against inductive kickback from 24 V solenoids and relays. No external flyback diodes or snubbers are required, simplifying PCB layout and improving reliability.
What is the function of the OE pin on SI83414BBA-IFR?
The OE (Output Enable) pin on SI83414BBA-IFR is an active-high asynchronous control that globally disables all four Bn outputs regardless of An input states. When OE is low, all outputs are forced OFF-providing hardware-level fail-safe control for emergency shutdown or power sequencing in industrial systems.
SI83414BBA-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:
- Bidirectional, 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)
SI83414BBA-IFR FAQ
1.How can I place an order for SI83414BBA-IFR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI83414BBA-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 SI83414BBA-IFR reliable?
The price and inventory of SI83414BBA-IFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI83414BBA-IFR is usually 5 days.
3.What payment methods are accepted for SI83414BBA-IFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI83414BBA-IFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI83414BBA-IFR?
SI83414BBA-IFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI83414BBA-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 SI83414BBA-IFR?
For technical support, including SI83414BBA-IFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI83414BBA-IFR requirements.
6.How does Aetrix verify that SI83414BBA-IFR is sourced from the original manufacturer or authorized distributors?
All SI83414BBA-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 SI83414BBA-IFR meets industry standards.
7.What is the process for return or replacement of SI83414BBA-IFR?
All SI83414BBA-IFR units undergo pre-shipment inspection (PSI). If there is an issue with SI83414BBA-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 SI83414BBA-IFR part is unused and in its original packaging.
Return procedure for SI83414BBA-IFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI83414BBA-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
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