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Skyworks Solutions Inc. SI83414ABA-IF
- Part No.:
- SI83414ABA-IF
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 32-VFDFN Exposed Pad
- Datasheet:
-
SI83414ABA-IF.pdf
- Description:
- LINEAR IC'S
- Quantity:
- Payment:
- Shipping:
Inventory:3,481
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Product details
Overview
SI83414ABA-IF from Skyworks Solutions is a quad-channel, isolated low-side smart switch IC designed for industrial load control in PLC and motion control systems. 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 robust noise immunity in harsh environments.
For engineers reviewing the SI83414ABA-IF datasheet, SI83414ABA-IF pinout, SI83414ABA-IF application, or SI83414ABA-IF equivalent, key selection considerations include its Inrush Current Mode (8 A for 20 ms), open-channel detection capability, active-low open-drain LED indicators (LED1–LED4), and dedicated VDD2_WRN warning output for analog supply monitoring.
Technical Context
The SI83414ABA-IF implements four independent low-side switches with CMOS-based RF-isolation barrier, each featuring integrated voltage, current, and temperature sensing. Its multi-voltage smart clamp enables unlimited EAS handling and fast turn-OFF for inductive loads like solenoids and relays.
Control is supported via parallel interface with asynchronous OE pin and dedicated indicator outputs-no SPI required. Diagnostics-including VDD2 under-voltage warning, open-circuit detection, and fault status-are reported through discrete pins (VDD2_WRN, FLT, LED1–LED4), enabling real-time system-level feedback without host processor intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Low-side, open-drain configuration with integrated protection |
| Continuous Current | 700 mA per channel at 25 °C; enables driving of 24 V solenoids and lamps |
| On-Resistance | 155 mΩ max per channel; minimizes power loss and thermal rise in high-duty-cycle operation |
| Isolation Rating | 1.5 kVRMS reinforced isolation; UL 1577 recognized for 1 min, compliant with IEC 61131-2 |
| Supply Ranges | VDD1: 2.25–5.5 V (logic); VDD2: 9–32 V (switch); supports wide industrial rail voltages |
| Inrush Mode | 8 A peak for 20 ms; safely energizes cold incandescent lamps without tripping protection |
| Diagnostic Outputs | VDD2_WRN (active-low), FLT (active-low open-drain), LED1–LED4 (per-channel status) |
| Operating Temp | –40 to +125 °C ambient; qualified for extended industrial temperature range |
Pinout & Package
SI83414ABA-IF is housed in a compact 9×9 mm DFN-32 package with exposed thermal pad (EP) on underside for enhanced heat dissipation in high-current applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Logic supply input | Powers digital interface; accepts 2.25–5.5 V; internal diode allows powering from logic inputs |
| OE | Asynchronous output enable | Active-high global enable; forces all outputs OFF when low, independent of channel inputs |
| GND1 / GND2 | Logic & switch ground | Galvanically isolated grounds; must be kept separate to maintain isolation integrity |
| VDD2 | Switch supply input | Powers output stage; 9–32 V range supports standard 24 V industrial rails |
| A1–A4 | Parallel logic inputs | Direct channel control inputs; high = ON (low-side sink enabled) |
| B1–B4 | Switch output terminals | Low-side drain outputs; connect to load cathodes; require external return path to VDD2 |
| LED1–LED4 | Per-channel status indicators | Active-low open-drain outputs; pulled high externally to indicate ON state |
| VDD2_WRN | Analog supply warning | Active-low open-drain; asserts when VDD2 drops below UV threshold (e.g., 18 V nominal) |
| FLT | Fault summary indicator | Active-low open-drain; asserts on any detected fault (over-temp, over-current, open-load, etc.) |
Key Features
| Feature | Design Value |
|---|---|
| Inrush Current Mode | Delivers 8 A for 20 ms to safely energize cold lamp filaments without false overcurrent trip |
| Open-Channel Detection | Reports open-circuit condition per channel via LEDn pins and FLT assertion |
| VDD2 Under-Voltage Warning | Dedicated VDD2_WRN pin provides early warning before switch supply dropout causes functional failure |
| Smart Output Clamp | Multi-voltage clamp handles unlimited demagnetization energy (EAS) while enabling fast inductor turn-OFF |
| Thermal & Overcurrent Protection | Real-time monitoring with automatic current limiting and controlled shutdown to prevent device damage |
| High CMTI Isolation | >100 kV/µs common-mode transient immunity ensures reliable operation in electrically noisy PLC cabinets |
Applications
| Programmable Logic Controllers (PLCs) | Industrial Motion Controllers |
|---|---|
Use Scenario: Controlling multiple solenoid valves and indicator lamps in modular I/O racks. IC Role / Device Role / Timing Role: Low-side switch providing isolated, protected drive for 24 V DC loads with real-time diagnostics. Use Value: Eliminates need for external optocouplers and discrete protection components; reduces board space by 40% vs. discrete solutions. | Use Scenario: Driving brake coils and position feedback indicators in servo amplifier modules. IC Role / Device Role / Timing Role: Fault-tolerant load switch with open-circuit detection and VDD2 monitoring for safety-critical actuation. Use Value: Enables immediate detection of coil disconnection or supply sag-preventing unsafe motion during maintenance. |
| Smart Solid-State Relays | Industrial Data Acquisition Systems |
Use Scenario: Replacing electromechanical relays in DIN-rail mounted SSR modules for HVAC and pump control. IC Role / Device Role / Timing Role: Quad-channel isolated driver with inrush mode for lamp and heater loads. Use Value: Achieves >10M switching cycles (vs. ~100k for EM relays) and eliminates contact arcing in dusty environments. | Use Scenario: Conditioning and isolating digital outputs in distributed I/O nodes connected to fieldbus networks. IC Role / Device Role / Timing Role: Galvanically isolated output stage with diagnostic reporting for predictive maintenance alerts. Use Value: Provides per-channel status visibility to host controller via LEDn pins-reducing firmware polling overhead by 75%. |
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-IF | No Inrush Current Mode; no VDD2_WRN pin; same 4-channel low-side topology and 700 mA rating | Lacks lamp-driving capability and early supply warning; suitable only for resistive/inductive loads without cold-start surge | Select when diagnostics beyond FLT and LEDn are unnecessary and cost optimization is critical |
| SI83414ACA-IF | Includes open-channel detection but omits VDD2_WRN; retains Inrush Mode and LEDn indicators | Provides load integrity monitoring but no analog supply health reporting; ideal for systems with redundant VDD2 supervision | Choose when open-load detection is mandatory but VDD2 margin monitoring is handled externally |
Compared with SI83414BAA-IF and SI83414ACA-IF, the SI83414ABA-IF uniquely combines Inrush Current Mode, VDD2_WRN warning, and open-channel detection-making it the only variant in the Si834x family that fully supports lamp loads *and* provides dual-layer supply health visibility without SPI dependency.
Availability
SI83414ABA-IF 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 support, and guaranteed traceability in safety-critical designs.
Supply support for SI83414ABA-IF 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 engineered specifically for industrial automation applications requiring high-reliability, galvanically isolated load switching with comprehensive diagnostics-replacing legacy optocoupler-plus-driver architectures with single-chip integration.
FAQ
What is the maximum continuous current per channel for the SI83414ABA-IF?
The SI83414ABA-IF delivers up to 700 mA continuous current per channel at 25 °C ambient, with RON specified at 155 mΩ max. Derating applies above 85 °C; full 700 mA operation requires adequate PCB copper area and thermal management per the datasheet layout guidelines. The SI83414ABA-IF maintains this rating across its full 9–32 V VDD2 range.
Does the SI83414ABA-IF support SPI communication?
No, the SI83414ABA-IF does not include SPI functionality. It belongs to the "Parallel-only" variant group (denoted by "A" in the third character of the part number). All configuration and diagnostics are accessed via dedicated pins-VDD2_WRN, FLT, and LED1–LED4-eliminating the need for firmware-driven register access while retaining full fault visibility.
How does the Inrush Current Mode work on the SI83414ABA-IF?
The SI83414ABA-IF's Inrush Current Mode delivers 8 A peak current for up to 20 ms upon channel activation, specifically designed to overcome the low cold resistance of incandescent lamps. This mode activates automatically on rising edge of A1–A4 inputs and deactivates once steady-state current is established or after timeout-without requiring external circuitry or host intervention.
What is the purpose of the VDD2_WRN pin on the SI83414ABA-IF?
The VDD2_WRN pin on the SI83414ABA-IF is an active-low, open-drain indicator that asserts when the switch supply voltage (VDD2) falls below the warning threshold (typically ~18 V). It provides early notification of marginal VDD2 conditions-allowing system-level response before undervoltage lockout disables outputs-enhancing reliability in brown-out scenarios common in factory power distribution.
Can the SI83414ABA-IF drive both resistive and inductive loads?
Yes, the SI83414ABA-IF is explicitly qualified for both resistive (e.g., lamps, heaters) and inductive (e.g., solenoids, relays, contactor coils) loads. Its integrated smart output clamp handles unlimited demagnetization energy (EAS), enabling fast, safe turn-OFF of inductive loads without external snubbers-while the Inrush Current Mode ensures reliable lamp ignition.
SI83414ABA-IF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 32-VFDFN Exposed Pad
- Packaging:
- Tray
- 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-IF FAQ
1.How can I place an order for SI83414ABA-IF through Aetrix?
Please submit a Request for Quotation (RFQ) for SI83414ABA-IF 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-IF reliable?
The price and inventory of SI83414ABA-IF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI83414ABA-IF is usually 5 days.
3.What payment methods are accepted for SI83414ABA-IF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI83414ABA-IF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI83414ABA-IF?
SI83414ABA-IF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI83414ABA-IF 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-IF?
For technical support, including SI83414ABA-IF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI83414ABA-IF requirements.
6.How does Aetrix verify that SI83414ABA-IF is sourced from the original manufacturer or authorized distributors?
All SI83414ABA-IF 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-IF meets industry standards.
7.What is the process for return or replacement of SI83414ABA-IF?
All SI83414ABA-IF units undergo pre-shipment inspection (PSI). If there is an issue with SI83414ABA-IF, 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-IF part is unused and in its original packaging.
Return procedure for SI83414ABA-IF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI83414ABA-IF 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
-
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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