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Skyworks Solutions Inc. SI83416BDA-IFR
- Part No.:
- SI83416BDA-IFR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 32-VFDFN Exposed Pad
- Datasheet:
-
SI83416BDA-IFR.pdf
- Description:
- 2 CH, ISOLATED SMART SWITCH, SIN
- Quantity:
- Payment:
- Shipping:
Inventory:3,076
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Product details
Overview
SI83416BDA-IFR from Skyworks Solutions is a dual-channel isolated smart switch with high-side sourcing capability, 1.25 A continuous current per channel, 78 mΩ RON, 9–32 V switch supply, and galvanic isolation up to 1.5 kVRMS. It integrates fault protection, SPI diagnostics, and operates in industrial control systems driving solenoids and relays.
For engineers reviewing the SI83416BDA-IFR datasheet, SI83416BDA-IFR pinout, SI83416BDA-IFR application, or SI83416BDA-IFR equivalent, key selection considerations include its SPI-only interface, dual-channel sourcing topology, 1.25 A/78 mΩ output specification, -40°C to +125°C operation, and compliance with IEC 61131-2 for programmable logic controller environments.
Technical Context
The SI83416BDA-IFR implements two independent isolated high-side switches using RF-based CMOS isolation, each with dedicated voltage/current/temperature sensing and a multi-voltage smart clamp for unlimited EAS handling. Its SPI interface provides full access to eight diagnostic registers including overcurrent, overtemperature, open-circuit, and communication error reporting.
Switch control is fully decoupled from diagnostics: channel enable is managed via SPI SW_EN bits, while fault status is reported asynchronously through FLT and internal registers. The device supports inrush current mode (8 A for 20 ms) only on variants with "AAA" or "ADA" suffixes - not applicable to SI83416BDA-IFR per Ordering Guide Table 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 2 independent high-side sourcing switches |
| Continuous Current | 1.25 A per channel at 78 mΩ RON, enabling robust drive of industrial solenoids and relays |
| Isolation Rating | 1.5 kVRMS for 1 minute; UL 1577 recognized, CSA 62368-1 certified |
| Logic Supply Range | 2.25 V–5.5 V, compatible with low-power MCUs including 2.5 V and 3.3 V systems |
| Switch Supply Range | 9 V–32 V, matching standard industrial DC bus voltages |
| CMTI | >100 kV/µs, ensuring reliable operation in noisy factory environments |
| Operating Temperature | -40°C to +125°C ambient, qualified for extended industrial use |
| Interface Type | SPI-only (no parallel inputs); requires MOSI, MISO, SCLK, NSS for full diagnostics and control |
Pinout & Package
SI83416BDA-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 1.25 A loads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Logic supply input | Powers digital interface (SPI) and isolation transmitter side; 2.25–5.5 V range |
| VDD2 | Switch supply input | Powers high-side output stage; accepts 9–32 V industrial rail; monitored for undervoltage warning |
| GND1 / GND2 | Logic / power ground | Galvanically separated grounds; must be routed independently to maintain isolation integrity |
| MOSI / MISO / SCLK / NSS | SPI interface signals | Full-duplex serial interface for configuring SW_EN, reading diagnostics, and clearing faults |
| B1 / B2 | High-side switch outputs | Source current to load; each rated for 1.25 A continuous, 78 mΩ RON, with integrated clamp and protection |
| FLT | Active-low fault indicator | Open-drain output asserting when any diagnostic fault (overcurrent, overtemp, etc.) is detected and unconfirmed |
| NC | No connect | Two pins (positions 21 and 22 per datasheet Figure 2) are unused and must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| RF-based CMOS isolation | Eliminates LED aging and CTR drift of optocouplers; enables >100 kV/µs CMTI and 1.5 kVRMS safety rating |
| Dual high-side sourcing topology | Directly drives loads referenced to system ground without external high-side drivers or bootstrap circuitry |
| SPI-managed diagnostics | Eight distinct fault reports (including open-circuit, overtemperature, supply UV/OV) accessible via register reads, not limited to pin indicators |
| Smart multi-voltage output clamp | Handles unlimited demagnetization energy (EAS) during inductive turn-off while maintaining fast switching speed |
| Asynchronous fault shutdown | Hardware-level response to critical faults (e.g., overtemperature) forces immediate output disable, independent of SPI activity |
| IEC 61131-2 compliance | Validated for use in PLC output modules requiring standardized electrical immunity and timing behavior |
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. IC Role / Device Role / Timing Role: Dual-channel isolated high-side switch providing controlled current sourcing with real-time fault reporting via SPI to PLC CPU. Use Value: Replaces discrete optocoupler + MOSFET + protection IC solutions, reducing BOM count by 60% and enabling predictive maintenance via open-circuit detection. | Use Scenario: Distributed I/O node acquiring status from field sensors and actuating local relays in factory automation. IC Role / Device Role / Timing Role: Isolated switch interface between microcontroller and 24 V industrial loads, with diagnostics reported over SPI to host MCU. Use Value: Enables centralized health monitoring of all connected loads via eight diagnostic registers, eliminating need for external sense resistors or comparators. |
| Motion Controllers | Smart Solid-State Relays |
Use Scenario: Compact servo drive auxiliary output controlling brake release coils and limit switches. IC Role / Device Role / Timing Role: Dual-channel high-side driver delivering precise 1.25 A pulses with <10 µs update rate and overtemperature constraint enforcement. Use Value: Guarantees safe brake engagement during thermal overload events via hardware-level shutdown, independent of firmware execution. | Use Scenario: DIN-rail mounted solid-state relay module replacing electromechanical relays in HVAC and packaging equipment. IC Role / Device Role / Timing Role: Isolated smart switch providing zero-crossing–free switching with built-in EAS clamp for inductive load handling. Use Value: Extends relay lifetime by eliminating contact arcing through active demagnetization control, validated for >100,000 cycles at full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated high-side switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI83406BDA-IF | Identical pinout, package, and SPI interface; same 2-channel, 1.25 A, 78 mΩ spec; differs only in tape-and-reel packaging (no "R" suffix) | No functional difference; suitable for same PCB design and firmware | Select SI83406BDA-IF if reel packaging is not required or if legacy BOM uses non-R variant |
| ADUM7223BRZ | 2-channel isolated gate driver (not smart switch); requires external MOSFETs, no integrated protection or diagnostics | Lacks current limiting, temperature sensing, EAS clamp, and SPI diagnostics - demands additional support circuitry | Choose ADUM7223BRZ only when custom high-current or high-voltage switching (>32 V) is needed beyond SI83416BDA-IFR's integrated capabilities |
Compared with SI83406BDA-IF, SI83416BDA-IFR offers identical functionality with tape-and-reel delivery for automated assembly; versus ADUM7223BRZ, it delivers full system integration - eliminating external FETs, sense resistors, and protection ICs - while adding diagnostic visibility essential for industrial safety compliance.
Availability
SI83416BDA-IFR is available at Aetrix Electronics and suitable for programmable logic controllers, motion controllers, and smart solid-state relays requiring stable component supply, long-term industrial lifecycle support, and guaranteed traceable sourcing.
Supply support for SI83416BDA-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, with leadership in RF, isolation, and precision timing technologies.
The Si834x product line was designed specifically for industrial automation applications requiring reinforced isolation, integrated protection, and diagnostic-rich digital interfaces - targeting PLC output modules, distributed I/O, and smart relay replacements.
FAQ
What is the maximum continuous output current per channel for SI83416BDA-IFR?
The SI83416BDA-IFR delivers 1.25 A continuous current per channel at 78 mΩ RON, verified under 25°C ambient and 32 V VDD2 conditions per datasheet Table 1 and Section 3.3. This rating applies to both channels simultaneously with appropriate PCB thermal design and derating above 85°C ambient.
Does SI83416BDA-IFR support inrush current mode for lamp loads?
No, SI83416BDA-IFR does not support inrush current mode. Per the Ordering Guide (Table 1), only variants with "AAA", "ADA", or "AFA" suffixes include this feature. SI83416BDA-IFR is designated as "BDA", indicating SPI-only interface without inrush capability - confirmed by absence of Inrush Current Mode in its truth table (Table 5).
What isolation certifications apply to SI83416BDA-IFR?
SI83416BDA-IFR carries UL 1577 recognition (1500 VRMS/1 min), CSA certification to IEC/EN/UL 62368-1, and CQC approval to GB4943.1. These certifications are explicitly listed in the datasheet Safety Approvals section and apply to the entire Si834x family, including SI83416BDA-IFR.
Can SI83416BDA-IFR drive low-side loads?
No, SI83416BDA-IFR is configured exclusively as a high-side sourcing switch. The Ordering Guide specifies "Sourcing" for all "BDA" variants, and Figure 2 confirms B1/B2 as sourcing outputs. Low-side sinking capability is only available in "BBA", "BCA", and "BDA" variants with "11", "12", or "14" prefixes (e.g., SI83411BBA-IF), not SI83416BDA-IFR.
What is the function of the FLT pin on SI83416BDA-IFR?
The FLT pin on SI83416BDA-IFR is an active-low, open-drain fault indicator that asserts when any diagnostic fault condition (e.g., overcurrent, overtemperature, open-circuit, or communication error) is detected and unconfirmed. Its behavior is governed by the Clear Fault Delay (tCFD) timer and can be overridden via SPI configuration per Section 3.6 of the datasheet.
Is SI83416BDA-IFR compatible with 2.5 V microcontrollers?
Yes, SI83416BDA-IFR supports 2.25 V–5.5 V logic supply (VDD1), making it fully compatible with 2.5 V microcontrollers. The SPI interface operates within this range, and all logic thresholds are specified to meet standard CMOS levels across the full VDD1 window per Table 14 (Power Supply Characteristics).
SI83416BDA-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:
- 2
- Inputs - Side 1/Side 2:
- 2/0
- 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)
SI83416BDA-IFR FAQ
1.How can I place an order for SI83416BDA-IFR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI83416BDA-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 SI83416BDA-IFR reliable?
The price and inventory of SI83416BDA-IFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI83416BDA-IFR is usually 5 days.
3.What payment methods are accepted for SI83416BDA-IFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI83416BDA-IFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI83416BDA-IFR?
SI83416BDA-IFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI83416BDA-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 SI83416BDA-IFR?
For technical support, including SI83416BDA-IFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI83416BDA-IFR requirements.
6.How does Aetrix verify that SI83416BDA-IFR is sourced from the original manufacturer or authorized distributors?
All SI83416BDA-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 SI83416BDA-IFR meets industry standards.
7.What is the process for return or replacement of SI83416BDA-IFR?
All SI83416BDA-IFR units undergo pre-shipment inspection (PSI). If there is an issue with SI83416BDA-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 SI83416BDA-IFR part is unused and in its original packaging.
Return procedure for SI83416BDA-IFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI83416BDA-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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