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Skyworks Solutions Inc. SI8441BB-D-YS0R
- Part No.:
- SI8441BB-D-YS0R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8441BB-D-YS0R.pdf
- Description:
- LINEAR IC'S
- Quantity:
- Payment:
- Shipping:
Inventory:3,357
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Product details
Overview
SI8441BB-D-YS0R from Skyworks Solutions is a quad-channel digital isolator with reinforced 2500 VRMS isolation, rated for 150 Mbps data rate and –40 to 125 °C operation. It features <9.5 ns worst-case propagation delay, 0.5 ns typical channel-to-channel skew, and ultra-low power consumption (<8.0 mA per channel at 100 Mbps, 5 V). It serves as a high-reliability signal isolator in isolated gate drivers and industrial I/O interfaces.
For engineers reviewing the SI8441BB-D-YS0R datasheet, SI8441BB-D-YS0R pinout, SI8441BB-D-YS0R application, or SI8441BB-D-YS0R equivalent, this page delivers verified timing specs, SOIC-16 wide-body package details, safety certifications (UL, CSA, VDE), and real-world design values for motor control, isolated ADC/DAC, and power inverter systems.
Technical Context
The SI8441BB-D-YS0R implements capacitive isolation with on-chip RF modulation/demodulation, enabling DC–150 Mbps operation without start-up initialization. Its dual-supply architecture supports independent 2.70–5.5 V VDD1 and VDD2 rails, allowing level-shifting between domains.
It integrates enable-controlled output tri-state functionality (ten1 ≤ 8.0 ns, ten2 ≤ 9.2 ns), precise timing control (1.5 ns typical pulse width distortion), and 25 kV/µs common-mode transient immunity-critical for noisy motor drive and SMPS environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 150 Mbps - supports high-speed serial links in isolated communication buses and fast feedback loops. |
| Propagation Delay | 3.0–9.5 ns (typ/max) - enables sub-10 ns timing-critical sampling in isolated ADC interfaces and PWM gate drive synchronization. |
| Channel-Channel Skew | 0.5–1.8 ns (typ/max) - ensures matched timing across all four channels for multi-phase motor control and synchronized sensor acquisition. |
| Supply Voltage Range | 2.70–5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Isolation Rating | 2500 VRMS (1 min) - meets reinforced insulation requirements for industrial equipment and EV auxiliary power supplies. |
| Power Consumption | <8.0 mA per channel at 100 Mbps, 5 V - reduces thermal load in densely packed isolated power modules and PLC backplanes. |
| CMTI | 25 kV/µs - suppresses false triggering during fast-switching transients in SiC/GaN inverter half-bridges. |
Pinout & Package
SI8441BB-D-YS0R is housed in a 16-pin wide-body SOIC package (WB-SOIC-16), with creepage/clearance of 8.0 mm and reinforced insulation certified to UL, CSA, and VDE standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, Pin 1 | Primary-side supply | Power input for input-side logic and channel A/B drivers; decoupling capacitor required. |
| GND1, Pin 2 | Primary-side ground | Reference for input signals and VDD1; must be separated from secondary-side ground by isolation barrier. |
| IN1, Pin 3 | Input channel 1 | Unidirectional digital input referenced to GND1; accepts 0.8 V / 2.0 V logic thresholds. |
| IN2, Pin 4 | Input channel 2 | Unidirectional digital input referenced to GND1; electrically isolated from IN1 but shares VDD1/GND1 domain. |
| EN, Pin 5 | Enable control | Active-high enable; drives outputs low when deasserted (Revision C behavior confirmed). |
| VDD2, Pin 10 | Secondary-side supply | Power for output-side logic and channel C/D drivers; supports independent voltage domain from VDD1. |
| GND2, Pin 11 | Secondary-side ground | Reference for output signals and VDD2; galvanically isolated from GND1 by internal capacitive barrier. |
| OUT3, Pin 12 | Output channel 3 | Isolated output referenced to GND2; 85 Ω nominal output impedance requires controlled-impedance PCB routing. |
| OUT4, Pin 13 | Output channel 4 | Isolated output referenced to GND2; matches OUT3 timing and drive strength for synchronous multi-channel use. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced 2500 VRMS isolation | Meets IEC 60747-5-2 and UL 1577 for safety-critical industrial and automotive auxiliary systems. |
| 0.5 ns typical channel-to-channel skew | Enables precise phase alignment in 3-phase motor control where timing mismatch causes torque ripple. |
| 25 kV/µs CMTI | Prevents data corruption during fast dV/dt events in SiC-based inverters operating above 100 kHz switching frequency. |
| No start-up initialization | Delivers valid output within 40 µs of power-on (tSU), eliminating boot-time delays in real-time control loops. |
| Tri-state enable with 5.0–8.0 ns latency | Allows dynamic bus sharing in isolated SPI or parallel data paths without external multiplexers. |
Applications
| Industrial Motor Control | Isolated ADC Interface |
|---|---|
Use Scenario: Isolating PWM gate signals and current-sense feedback in 3-phase inverter drives. IC Role / Device Role / Timing Role: Quad-channel isolator providing independent, skew-matched signal paths for upper/lower gate drivers and analog monitor lines. Use Value: 0.5 ns channel skew and 25 kV/µs CMTI prevent shoot-through and ensure accurate current reconstruction under fast switching. |
Use Scenario: Transmitting digitized sensor data across isolation barrier in precision measurement systems. IC Role / Device Role / Timing Role: High-speed unidirectional isolator linking SAR ADC serial output to isolated MCU SPI interface. Use Value: 150 Mbps capability supports oversampled 16-bit ADCs at >1 MSPS without bottlenecking data throughput. |
| Isolated Switch-Mode Power Supply | Hybrid Electric Vehicle Auxiliary Systems |
Use Scenario: Feedback loop isolation in 1–3 kW LLC resonant converters with digital controllers. IC Role / Device Role / Timing Role: Bidirectional-capable isolator (via paired channels) transmitting error amplifier output and synchronous rectifier timing. Use Value: Sub-10 ns propagation delay preserves loop stability margin at >500 kHz switching frequencies. |
Use Scenario: Signal isolation between 12 V battery management and 400 V traction inverter control units. IC Role / Device Role / Timing Role: Reinforced-isolation interface for HV contactor status, precharge sequencing, and fault reporting. Use Value: 2500 VRMS rating and AEC-Q100 qualification meet automotive functional safety requirements for ASIL-B systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM140D0BRWZ | 4-channel, 150 Mbps, 2.5 kVRMS, SOIC-16 wide body; higher 10.5 ns max propagation delay vs. SI8441BB-D-YS0R's 9.5 ns. | Lower CMTI (100 kV/µs) but tighter 0.3 ns channel skew; better for ultra-precise timing, less robust in high-dV/dt SMPS. | Select ADUM140D0BRWZ when sub-0.5 ns skew dominates over CMTI; verify layout for reduced noise coupling. |
| ISO6741QDWR | 4-channel, 50 Mbps, 5000 VRMS, SOIC-16 wide body; lower speed but higher isolation rating and 100 kV/µs CMTI. | Rated for 125 °C but limited to 50 Mbps; suitable for high-voltage battery monitoring where speed is secondary to safety margin. | Choose ISO6741QDWR for >3 kVRMS system-level requirements or where extended lifetime at elevated working voltage is critical. |
Compared with ADUM140D0BRWZ and ISO6741QDWR, SI8441BB-D-YS0R delivers optimal balance of speed (150 Mbps), timing precision (0.5 ns skew), and noise immunity (25 kV/µs) for industrial motor drives and isolated power control, while maintaining compatibility with standard WB-SOIC-16 footprints.
Availability
SI8441BB-D-YS0R is available at Aetrix Electronics and suitable for industrial motor control, isolated switch-mode power supplies, and hybrid electric vehicle auxiliary systems requiring stable component supply and long-term lifecycle support.
Supply support for SI8441BB-D-YS0R 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 specifically for high-reliability, high-speed digital isolation in industrial automation, automotive electrification, and energy infrastructure-emphasizing low power, precise timing, and safety-certified reinforcement.
FAQ
What is the maximum data rate supported by SI8441BB-D-YS0R?
The SI8441BB-D-YS0R supports a maximum data rate of 150 Mbps across all four channels under specified conditions (VDD = 5 V, TA = –40 to 125 °C). This is validated per Table 3 timing characteristics for Si844xBx variants and applies to both narrow- and wide-body SOIC packages.
Does SI8441BB-D-YS0R require external start-up initialization?
No, SI8441BB-D-YS0R does not require start-up initialization. Valid output data is guaranteed within 40 µs of power application (tSU), as specified in Table 3. This eliminates boot-time delays in real-time control applications such as motor drives and isolated power converters.
What safety certifications apply to SI8441BB-D-YS0R?
SI8441BB-D-YS0R is certified to UL 1577 (2500 VRMS), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2. These cover reinforced insulation up to 560 Vpeak working voltage and are production-tested to 3000 VRMS for 1 second per regulatory note in Table 6.
What is the channel-to-channel skew specification for SI8441BB-D-YS0R?
The SI8441BB-D-YS0R has a typical channel-to-channel skew of 0.5 ns and a maximum of 1.8 ns at 5 V supply and full temperature range, as documented in Table 3 for Si844xBx devices. This value is measured between any two output channels under identical loading and supply conditions.
Is SI8441BB-D-YS0R compatible with 2.7 V logic levels?
Yes, SI8441BB-D-YS0R operates with VDD1 and VDD2 down to 2.70 V. Input thresholds remain fixed (VIH ≥ 2.0 V, VIL ≤ 0.8 V), and output drive strength is maintained-verified in Table 5 for 2.70 V operation, including 100 Mbps current draw and timing performance.
SI8441BB-D-YS0R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI8441BB-D-YS0R FAQ
1.How can I place an order for SI8441BB-D-YS0R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8441BB-D-YS0R 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 SI8441BB-D-YS0R reliable?
The price and inventory of SI8441BB-D-YS0R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8441BB-D-YS0R is usually 5 days.
3.What payment methods are accepted for SI8441BB-D-YS0R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8441BB-D-YS0R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8441BB-D-YS0R?
SI8441BB-D-YS0R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8441BB-D-YS0R 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 SI8441BB-D-YS0R?
For technical support, including SI8441BB-D-YS0R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8441BB-D-YS0R requirements.
6.How does Aetrix verify that SI8441BB-D-YS0R is sourced from the original manufacturer or authorized distributors?
All SI8441BB-D-YS0R 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 SI8441BB-D-YS0R meets industry standards.
7.What is the process for return or replacement of SI8441BB-D-YS0R?
All SI8441BB-D-YS0R units undergo pre-shipment inspection (PSI). If there is an issue with SI8441BB-D-YS0R, 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 SI8441BB-D-YS0R part is unused and in its original packaging.
Return procedure for SI8441BB-D-YS0R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8441BB-D-YS0R 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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