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Skyworks Solutions Inc. SI8441BA-D-IS1
- Part No.:
- SI8441BA-D-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8441BA-D-IS1.pdf
- Description:
- DGTL ISO 1000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,988
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Product details
Overview
SI8441BA-D-IS1 from Skyworks Solutions is a quad-channel, ultra-low-power digital isolator in a 16-pin wide-body SOIC package, supporting up to 150 Mbps data rate with worst-case propagation delay <9.5 ns, 0.5 ns channel-channel skew, and 25 kV/µs common-mode transient immunity. It operates across 2.70–5.5 V supply rails and delivers <8.0 mA per channel at 100 Mbps (5 V), enabling high-speed isolation in motor control and isolated ADC interfaces.
For engineers reviewing the SI8441BA-D-IS1 datasheet, SI8441BA-D-IS1 pinout, SI8441BA-D-IS1 application, or SI8441BA-D-IS1 equivalent, this page provides verified timing specs, safety certifications (UL 1577, VDE 0884-2, CSA 5A), package dimensions, real-world power consumption at 1 Mbps/100 Mbps, and two validated alternative isolators for industrial and automotive systems.
Technical Context
The SI8441BA-D-IS1 implements capacitive isolation with on-chip RF modulation/demodulation circuitry, delivering precise timing stability over –40 to +125 °C without initialization. Its four independent bidirectional channels support asymmetric supply operation (VDD1 ≠ VDD2) and feature integrated enable inputs with 5–8 ns enable-to-data-valid latency.
It achieves reinforced insulation per IEC 60747-5-2 and UL 1577, rated for 2500 VRMS withstand voltage (1 min), with 8.0 mm clearance and 8.0 mm creepage in the wide-body SOIC-16 package. Transient immunity remains stable at 25 kV/µs across full temperature and supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 150 Mbps - supports high-speed serial links (e.g., SPI, RS-485 transceiver control, isolated CAN FD signaling) |
| Propagation Delay | 3.0–9.5 ns - enables sub-10 ns timing-critical feedback loops in motor gate drivers and power inverters |
| Channel-Channel Skew | 0.5 ns typical - ensures synchronized sampling across multiple isolated ADC/DAC channels |
| Supply Current @ 100 Mbps | 8.0 mA per channel (5 V) - reduces thermal load in dense PCB layouts with multiple isolators |
| CMTI | 25 kV/µs - maintains signal integrity during fast-switching events in SiC/GaN power stages |
| Isolation Voltage | 2500 VRMS (1 min) - meets reinforced insulation requirements for industrial mains-connected equipment |
| Operating Temp | –40 to +125 °C - qualified for under-hood automotive and industrial drive environments |
Pinout & Package
SI8441BA-D-IS1 is housed in a 16-pin wide-body SOIC package (package outline per Skyworks Doc #28), with 8 pins on each side, 1.27 mm pitch, and 10.3 mm body width. Creepage/clearance meet IEC 60664-1 Group II requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Primary-side VDD1, GND1, INx, ENx | VDD1 powers input-side logic; INx accepts 2.0–5.5 V logic; ENx enables/disables output drivers |
| 9, 10, 11, 12, 13, 14, 15, 16 | Secondary-side VDD2, GND2, OUTx | VDD2 powers output-side logic; OUTx drives CMOS loads with 85 Ω nominal output impedance |
Key Features
| Feature | Design Value |
|---|---|
| Quad-channel bidirectional isolation | Four independent, non-inverting signal paths with separate enable controls per channel pair |
| Ultra-low power at high speed | 8.0 mA per channel at 100 Mbps (5 V), enabling >100 Mbps operation without forced air cooling |
| Precision timing performance | 0.5 ns channel-channel skew and 1.5 ns pulse width distortion ensure deterministic signal alignment |
| AEC-Q100 qualified | Qualified to Grade 1 (–40 to +125 °C), supporting use in hybrid electric vehicle battery management and traction inverter control |
| Reinforced safety certification | UL 1577 (2500 VRMS), VDE 0884-2 (IEC 60747-5-2), CSA 5A - eliminates need for external safety components |
Applications
| Industrial Motor Control | Isolated ADC Interface |
|---|---|
Use Scenario: Gate driver isolation in 3-phase inverter stacks using SiC MOSFETs switching at 100+ kHz. IC Role / Device Role / Timing Role: Isolates PWM signals from MCU to gate drivers while preserving <10 ns edge fidelity and <1 ns skew across all three phase legs. Use Value: Enables precise dead-time control and prevents shoot-through failures during fast transitions. |
Use Scenario: Isolating serial interface (SPI) between precision 24-bit delta-sigma ADC and host processor in high-voltage energy metering. IC Role / Device Role / Timing Role: Transfers conversion data and configuration commands across 2500 VRMS barrier with no clock jitter accumulation. Use Value: Maintains ADC effective resolution by eliminating ground-loop noise and timing uncertainty in isolated domain. |
| Hybrid Electric Vehicle BMS | Isolated Switch-Mode Power Supply |
Use Scenario: Cell voltage monitoring and balancing command isolation in 400–800 V battery packs. IC Role / Device Role / Timing Role: Transmits fault signals and balance-enable pulses from isolated slave controllers to central MCU with <40 µs start-up time. Use Value: Ensures rapid response to overvoltage/overtemperature events without compromising galvanic separation. |
Use Scenario: Feedback loop isolation in 1 kW LLC resonant converter with primary-side controller and secondary-side optocoupler replacement. IC Role / Device Role / Timing Role: Carries error amplifier output across isolation barrier with <9.5 ns propagation delay and 25 kV/µs CMTI. Use Value: Improves transient response and stability margin versus optocouplers, especially under EMI stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM140D0BRIZ | 4-channel, 150 Mbps, 2.5 kVRMS, SOIC-16 narrow body; higher 100 Mbps current (12.5 mA/ch @ 5 V) | Narrow-body footprint saves board space but reduces creepage (4.01 mm vs. 8.0 mm); not AEC-Q100 qualified | Preferred when PCB area is constrained and automotive qualification is not required |
| ISO6741QDWR | 4-channel, 50 Mbps max, 5000 VRMS, SOIC-16 wide body; lower power (3.5 mA/ch @ 1 Mbps), higher isolation rating | Lower speed limits use in feedback loops only; certified to VDE 0884-11 (reinforced) and AEC-Q100 Grade 0 (–40 to +150 °C) | Selected when >3.75 kVRMS working voltage or extended temperature range is mandatory |
Compared with ADUM140D0BRIZ and ISO6741QDWR, the SI8441BA-D-IS1 offers the best balance of 150 Mbps speed, AEC-Q100 Grade 1 qualification, and 8.0 mm creepage in wide-body SOIC-making it optimal for high-reliability industrial motor drives where timing precision and safety margin are jointly critical.
Availability
SI8441BA-D-IS1 is available at Aetrix Electronics and suitable for industrial motor control, hybrid electric vehicle battery management, and isolated switch-mode power supplies requiring stable component supply and long-term lifecycle support.
Supply support for SI8441BA-D-IS1 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, timing, and isolation technologies.
The Si84xx family was designed for high-reliability, high-speed digital isolation in harsh environments-targeting industrial automation, automotive electrification, and energy infrastructure where legacy optocouplers fail to meet speed, power, or lifetime requirements.
FAQ
What is the maximum operating temperature for SI8441BA-D-IS1?
The SI8441BA-D-IS1 is specified for continuous operation from –40 °C to +125 °C at 150 Mbps with 15 pF load and 5 V supply. This rating is validated per AEC-Q100 Grade 1 and applies to both wide-body SOIC package variants. Derating is not required within this range, and propagation delay variation remains <1 ns across the full span.
Does SI8441BA-D-IS1 support asymmetric supply voltages?
Yes, SI8441BA-D-IS1 supports independent VDD1 (primary side) and VDD2 (secondary side) supplies ranging from 2.70 V to 5.5 V each. This allows interfacing a 3.3 V microcontroller to a 5 V gate driver stage without level shifters, maintaining full 150 Mbps data rate and timing specifications across all valid supply combinations.
What safety certifications apply to SI8441BA-D-IS1?
SI8441BA-D-IS1 carries UL 1577 recognition (2500 VRMS, File E257455), VDE 0884-2 certification per IEC 60747-5-2 (File 5006301-4880-0001), and CSA Component Acceptance Notice 5A (File 232873). These cover reinforced insulation for up to 600 VRMS working voltage per IEC 61010-1 and IEC 60950-1 standards.
How does the enable pin function on SI8441BA-D-IS1?
Each channel pair on SI8441BA-D-IS1 has a dedicated enable input (EN1/EN2). When asserted high, outputs follow inputs with 5–8 ns enable-to-data-valid latency; when low, outputs enter high-impedance state within 7–9.2 ns. This enables dynamic channel gating in multi-isolator systems without external logic.
Is SI8441BA-D-IS1 pin-compatible with other Si84xx variants?
SI8441BA-D-IS1 shares identical pinout and package with all Si8440/41/42/45 wide-body SOIC variants (e.g., SI8441BB-D-IS1, SI8442BA-D-IS1). However, data rate, power consumption, and timing specs differ by suffix: 'A' denotes 1 Mbps max (Si844xAx), 'B' denotes 150 Mbps (Si844xBx). Electrical substitution requires validation of speed and current requirements.
SI8441BA-D-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 1000Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs (Typ)
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 9.5ns, 9.5ns
- Pulse Width Distortion (Max):
- 2.5ns
- Rise / Fall Time (Typ):
- 3.8ns, 2.8ns
- Voltage - Supply:
- 2.7V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI8441BA-D-IS1 FAQ
1.How can I place an order for SI8441BA-D-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8441BA-D-IS1 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 SI8441BA-D-IS1 reliable?
The price and inventory of SI8441BA-D-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8441BA-D-IS1 is usually 5 days.
3.What payment methods are accepted for SI8441BA-D-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8441BA-D-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8441BA-D-IS1?
SI8441BA-D-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8441BA-D-IS1 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 SI8441BA-D-IS1?
For technical support, including SI8441BA-D-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8441BA-D-IS1 requirements.
6.How does Aetrix verify that SI8441BA-D-IS1 is sourced from the original manufacturer or authorized distributors?
All SI8441BA-D-IS1 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 SI8441BA-D-IS1 meets industry standards.
7.What is the process for return or replacement of SI8441BA-D-IS1?
All SI8441BA-D-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8441BA-D-IS1, 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 SI8441BA-D-IS1 part is unused and in its original packaging.
Return procedure for SI8441BA-D-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8441BA-D-IS1 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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