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Skyworks Solutions Inc. SI8441BB-D-IS1R
- Part No.:
- SI8441BB-D-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8441BB-D-IS1R.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,230
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Product details
Overview
SI8441BB-D-IS1R 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, 2.7–5.5 V dual supply operation, and 2500 VRMS reinforced isolation. It serves as a high-reliability signal barrier in isolated power supplies and motor control interfaces.
For engineers reviewing the SI8441BB-D-IS1R datasheet, SI8441BB-D-IS1R pinout, SI8441BB-D-IS1R application, or SI8441BB-D-IS1R equivalent, key selection criteria include its 150 Mbps capability at 125 °C, channel-to-channel skew ≤1.8 ns, CMTI ≥25 kV/µs, and AEC-Q100 qualification for automotive-grade robustness.
Technical Context
The SI8441BB-D-IS1R implements capacitive isolation with on-chip CMOS drivers and receivers, enabling DC-to-150 Mbps operation without start-up initialization. Its dual-supply architecture (VDD1/VDD2) supports independent 2.7–5.5 V domains per side, with precise timing control via matched internal paths.
It features an enable input (ENx) that places outputs in high-impedance state within 9.2 ns, and achieves 6 ns minimum pulse width at 150 Mbps. The device meets IEC 60747-5-2 (VDE 0884-2), UL 1577, and CSA Component Notice 5A safety standards for reinforced insulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 150 Mbps - enables high-speed serial communication in isolated ADC/DAC and industrial Ethernet PHY interfaces. |
| Propagation Delay | 3.0–9.5 ns - ensures sub-10 ns timing predictability for real-time motor control loop closure. |
| Channel-Channel Skew | ≤1.8 ns - maintains phase alignment across all four channels for synchronized PWM or encoder signal isolation. |
| CMTI | ≥25 kV/µs - suppresses noise-induced glitches in high-dV/dt environments like IGBT gate drivers and inverters. |
| Isolation Voltage | 2500 VRMS - certified for reinforced insulation per UL, CSA, and VDE standards in safety-critical systems. |
| Supply Range | 2.7–5.5 V per side - supports interoperability with both 3.3 V microcontrollers and 5 V legacy logic. |
| Operating Temp | –40 to +125 °C - qualified for under-hood automotive and industrial ambient conditions at full 150 Mbps performance. |
Pinout & Package
SI8441BB-D-IS1R is housed in a 16-pin wide-body SOIC (WB-SOIC-16) package with 8.0 mm creepage/clearance, rated for 2500 VRMS isolation. Pin assignments follow standard Si844x quad-channel layout with independent input/output sides separated by the isolation barrier.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Primary-side power and ground | Supplies input-side logic and isolator transmitter; decoupling required per datasheet layout guidelines. |
| VDD2, GND2 | Secondary-side power and ground | Supplies output-side logic and receiver; galvanically isolated from VDD1/GND1. |
| IN1–IN4 | Digital input signals (side 1) | Accept TTL/CMOS-compatible logic levels; VIH ≥2.0 V, VIL ≤0.8 V across full voltage range. |
| OUT1–OUT4 | Isolated digital outputs (side 2) | Drive 4 mA loads at VOL ≤0.4 V; output impedance ≈85 Ω for controlled-impedance PCB routing. |
| EN1–EN4 | Per-channel enable inputs | Assert low to force corresponding OUTx into high-Z state; ten2 ≤9.2 ns disable time. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power at 100 Mbps | 8.0 mA (VDD1) + 10 mA (VDD2) typical at 5 V - reduces thermal load in dense power-conversion modules. |
| Pulse width distortion | ≤2.5 ns - preserves duty cycle integrity for precision PWM and clock distribution applications. |
| Start-up time | 15–40 µs - enables fast system wake-up without external reset sequencing. |
| AEC-Q100 qualification | Grade 1 (–40 to +125 °C) - validated for automotive subsystems including battery management and traction inverters. |
| RoHS-compliant packaging | Wide-body SOIC with Pb-free terminations - meets global environmental compliance requirements without derating. |
Applications
| Industrial Motor Control | Isolated Switch-Mode Power Supply |
|---|---|
Use Scenario: Isolating gate-drive signals between MCU and three-phase IGBT/MOSFET half-bridges in servo drives. IC Role / Device Role / Timing Role: Quad-channel digital isolator transmitting PWM and fault feedback across primary-secondary barrier. Use Value: 150 Mbps data rate and ≤1.8 ns channel skew ensure synchronized switching with minimal dead-time uncertainty. | Use Scenario: Providing isolated feedback for voltage regulation and overcurrent protection in 1–3 kW AC/DC converters. IC Role / Device Role / Timing Role: Transmitting error amplifier output and status flags from secondary to primary controller side. Use Value: 25 kV/µs CMTI prevents false triggering during high-frequency transformer ringing and load transients. |
| Automotive Battery Management | Isolated Data Acquisition |
Use Scenario: Isolating cell voltage and temperature measurements from high-voltage battery packs to MCU in EVs. IC Role / Device Role / Timing Role: Transmitting digitized sensor data and balancing commands across 400–800 V barriers. Use Value: AEC-Q100 Grade 1 rating and 2500 VRMS isolation support functional safety requirements per ISO 26262 ASIL-C. | Use Scenario: Interfacing isolated ADCs (e.g., ADS131M04) to host processors in high-noise test equipment. IC Role / Device Role / Timing Role: Delivering synchronized 24-bit conversion results across isolation boundary with minimal jitter. Use Value: Sub-10 ns propagation delay and 6 ns minimum pulse width preserve timing resolution for multi-channel sampling. |
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, 2.7–5.5 V, 2500 VRMS, but uses magnetic coupling and has higher 10.5 ns max propagation delay. | Less suitable for ultra-low-skew timing-critical loops due to 3 ns higher channel skew. | Prefer SI8441BB-D-IS1R where propagation delay consistency and CMTI >25 kV/µs are mandatory. |
| ISO6741QDWR | 4-channel, 50 Mbps, 1.71–5.5 V, 5000 VRMS, capacitive isolation, but limited to 50 Mbps and lacks AEC-Q100 qualification. | Applicable only in lower-speed, non-automotive industrial systems requiring higher isolation voltage. | Select SI8441BB-D-IS1R when 150 Mbps throughput and automotive qualification are required. |
Compared with ADUM140D0BRIZ and ISO6741QDWR, SI8441BB-D-IS1R uniquely delivers 150 Mbps speed with ≤1.8 ns channel skew and AEC-Q100 Grade 1 qualification-making it optimal for high-fidelity motor control and automotive BMS where timing fidelity and reliability are non-negotiable.
Availability
SI8441BB-D-IS1R is available at Aetrix Electronics and suitable for industrial motor control, isolated switch-mode power supplies, and automotive battery management systems requiring stable component supply and long-term lifecycle assurance.
Supply support for SI8441BB-D-IS1R 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 Si844x family was designed specifically for high-speed, low-power, safety-certified digital isolation in demanding industrial and automotive applications-replacing optocouplers with superior reliability, speed, and temperature stability.
FAQ
What is the maximum operating temperature for SI8441BB-D-IS1R at full 150 Mbps data rate?
The SI8441BB-D-IS1R operates at up to 125 °C ambient temperature while maintaining 150 Mbps performance, as verified in Table 3 and Table 4 of the datasheet under VDD = 5 V and 3.3 V conditions. This rating applies to both wide-body and narrow-body SOIC packages and is supported by AEC-Q100 Grade 1 qualification.
Does SI8441BB-D-IS1R require external start-up initialization or configuration?
No, SI8441BB-D-IS1R requires no start-up initialization or configuration. It begins passing valid data within 15–40 µs after power application (tSU), as specified in Table 3. This zero-config behavior simplifies system design and eliminates boot-time dependencies in safety-critical applications.
What safety certifications apply to SI8441BB-D-IS1R and what working voltages do they support?
SI8441BB-D-IS1R is certified to UL 1577 (2500 VRMS), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2. These support up to 600 VRMS reinforced insulation working voltage (CSA/VDE) and 2500 VRMS isolation withstand voltage (UL), with production-tested 3000 VRMS for 1 second.
How does the enable function operate on SI8441BB-D-IS1R, and what is its timing impact?
Each ENx pin on SI8441BB-D-IS1R controls one output channel: asserting ENx low places the corresponding OUTx in high-impedance state within 7.0–9.2 ns (ten2). When enabled, data passes with propagation delay of 3.0–9.5 ns (tPHL/tPLH). This per-channel control enables dynamic isolation in multi-zone power systems.
Is SI8441BB-D-IS1R pin-compatible with other members of the Si844x family, such as SI8440 or SI8442?
Yes, SI8441BB-D-IS1R shares identical pinout and package (WB-SOIC-16) with all Si8440/41/42/45 variants. However, electrical differences exist: SI8441B supports 150 Mbps, while SI8440A is limited to 1 Mbps and SI8442B offers different channel directionality. Pin compatibility enables drop-in replacement only within same speed/variant group (e.g., SI8441BB-D-IS1R ↔ SI8441AB-D-IS1R).
SI8441BB-D-IS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI8441BB-D-IS1R FAQ
1.How can I place an order for SI8441BB-D-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8441BB-D-IS1R 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-IS1R reliable?
The price and inventory of SI8441BB-D-IS1R 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-IS1R is usually 5 days.
3.What payment methods are accepted for SI8441BB-D-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8441BB-D-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8441BB-D-IS1R?
SI8441BB-D-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8441BB-D-IS1R 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-IS1R?
For technical support, including SI8441BB-D-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8441BB-D-IS1R requirements.
6.How does Aetrix verify that SI8441BB-D-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8441BB-D-IS1R 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-IS1R meets industry standards.
7.What is the process for return or replacement of SI8441BB-D-IS1R?
All SI8441BB-D-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8441BB-D-IS1R, 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-IS1R part is unused and in its original packaging.
Return procedure for SI8441BB-D-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8441BB-D-IS1R 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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