My Inquiry
My Account
Skyworks Solutions Inc. SI8441BA-D-IS1R
- Part No.:
- SI8441BA-D-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8441BA-D-IS1R.pdf
- Description:
- DGTL ISO 1000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,107
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI8441BA-D-IS1R from Skyworks Solutions is a quad-channel digital isolator with reinforced isolation, designed for high-noise industrial and automotive signal interfaces. It delivers 150 Mbps data rate, <9.5 ns worst-case propagation delay, 0.5 ns channel-channel skew, 25 kV/µs CMTI, and operates across –40 to 125 °C at 2.7–5.5 V supply. It is used in isolated motor control gate drivers and hybrid electric vehicle battery management systems.
For engineers reviewing the SI8441BA-D-IS1R datasheet, SI8441BA-D-IS1R pinout, SI8441BA-D-IS1R application, or SI8441BA-D-IS1R equivalent, key selection criteria include reinforced 2500 VRMS isolation rating, AEC-Q100 qualification, ultra-low power consumption at 100 Mbps (≤19.8 mA per side), and SOIC-16 wide-body package compatibility with IPC-7351B land patterns.
Technical Context
The SI8441BA-D-IS1R employs capacitive isolation with on-chip RF modulation/demodulation circuitry, enabling DC-to-150 Mbps operation without start-up initialization. Its dual-die architecture separates input and output domains, supporting independent 2.7–5.5 V supplies on each side with no shared ground reference.
It integrates enable-controlled tri-state outputs, precise timing control (1.5 ns typical pulse width distortion), and robust transient immunity-meeting IEC 60747-5-2 (VDE 0884-2) and UL 1577 safety standards for reinforced insulation up to 2500 VRMS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 150 Mbps maximum - supports high-speed serial interfaces like isolated SPI, RS-485 transceivers, and PWM feedback loops. |
| Propagation Delay | 3.0–9.5 ns - enables tight-timing control in real-time motor control and power converter feedback paths. |
| Channel-Channel Skew | 0.5 ns typical - ensures synchronized sampling across multiple isolated ADC channels or gate drive signals. |
| CMTI | 25 kV/µs minimum - maintains signal integrity in high-di/dt environments such as IGBT/SiC inverter switching nodes. |
| Isolation Rating | 2500 VRMS reinforced - certified to UL 1577, CSA 5A, and VDE 0884-2 for functional safety in industrial and automotive applications. |
| Supply Voltage | 2.7–5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level-shifting. |
| Operating Temp | –40 to 125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive use and industrial ambient conditions. |
Pinout & Package
SI8441BA-D-IS1R is housed in a 16-pin wide-body SOIC package (WB-SOIC-16) with 8.0 mm creepage/clearance, optimized for reinforced insulation compliance. Pin assignments follow standard Si844x quad-channel layout with independent VDD1/VDD2, GND1/GND2, four isolated channel pairs (INx/OUTx), and dedicated EN pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Input Channels A–D | Digital logic inputs referenced to VDD1/GND1; accept 2.0 V min VIH and 0.8 V max VIL. |
| 5, 6, 7, 8 | VDD1, GND1, EN, NC | VDD1 powers input-side logic; EN enables/disables all outputs; NC is no-connect. |
| 9, 10, 11, 12 | Output Channels A–D | CMOS-compatible outputs referenced to VDD2/GND2; drive 4 mA sink/source at VOL/VOH. |
| 13, 14, 15, 16 | VDD2, GND2, NC, NC | VDD2 powers output-side logic; GND2 is isolated return; two pins are no-connect. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power at 100 Mbps | ≤19.8 mA total supply current (VDD1 + VDD2) - reduces thermal load in dense PCB layouts and extends battery life in portable isolated systems. |
| Enable-controlled tri-state outputs | EN pin asserts high-impedance state on all OUTx pins within 9.2 ns - enables bus sharing and hot-swap capability in modular power systems. |
| Precision timing performance | 1.5 ns typical pulse width distortion and 0.5 ns channel-channel skew - preserves signal integrity in time-critical feedback loops for servo drives and digital power controllers. |
| Robust EMC immunity | 25 kV/µs common-mode transient immunity - prevents false triggering during fast-switching events in motor inverters and SMPS. |
| AEC-Q100 qualification | Grade 1 (–40 to 125 °C) - validates reliability for automotive battery monitoring, onboard chargers, and traction inverter control modules. |
Applications
| Industrial Motor Control | Automotive Battery Management |
|---|---|
Use Scenario: Isolating PWM gate drive signals and current-sense feedback between MCU and IGBT/SiC half-bridge in servo drives. IC Role / Device Role: Quad-channel digital isolator providing galvanic separation for control and sensing paths. Use Value: Enables safe, noise-immune operation at 150 Mbps with <9.5 ns delay, preserving closed-loop bandwidth and reducing EMI-induced errors. | Use Scenario: Isolating cell voltage measurement and balancing signals in high-voltage EV battery packs (up to 800 V). IC Role / Device Role: Reinforced-isolation interface between isolated ADCs and host MCU across multiple battery modules. Use Value: 2500 VRMS rating and AEC-Q100 qualification ensure long-term reliability and functional safety compliance in harsh automotive environments. |
| Isolated Switch-Mode Power Supply | Industrial PLC I/O Modules |
Use Scenario: Transmitting error amplifier output and synchronous rectifier timing across primary-secondary boundary in LLC resonant converters. IC Role / Device Role: High-speed, low-skew isolator for feedback loop closure and gate drive synchronization. Use Value: 0.5 ns channel-channel skew and 25 kV/µs CMTI prevent timing jitter and false triggering during high dv/dt transients. | Use Scenario: Isolating digital input/output signals between field-side sensors/actuators and controller-side logic in factory automation systems. IC Role / Device Role: Quad-channel isolator replacing optocouplers in DIN-rail mounted I/O modules. Use Value: 150 Mbps capability supports high-speed fieldbus protocols (e.g., EtherCAT), while SOIC-16 WB footprint simplifies legacy board upgrades. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2401ARWZ | 4-channel, 25 Mbps max data rate; 35 ns max propagation delay; 2.5 kVRMS isolation; SOIC-16 narrow body. | Limited to lower-speed industrial I/O and legacy PLC designs; not AEC-Q100 qualified. | Choose when cost sensitivity outweighs speed and automotive qualification requirements. |
| ISO6741QDWR | 4-channel, 50 Mbps max data rate; 25 kV/µs CMTI; 5000 VRMS isolation; SOIC-16 wide body; AEC-Q100 Grade 0 (–40 to 150 °C). | Higher isolation voltage but lower data rate; optimized for ultra-high-reliability automotive subsystems. | Prefer when >2500 VRMS working voltage or extended temperature range is mandatory. |
Compared with ADUM2401ARWZ and ISO6741QDWR, the SI8441BA-D-IS1R uniquely balances 150 Mbps speed, AEC-Q100 Grade 1 qualification, and 2500 VRMS reinforced isolation in a production-proven SOIC-16 wide-body package-making it optimal for next-generation EV inverters and high-bandwidth industrial drives where timing precision and noise immunity are critical.
Availability
SI8441BA-D-IS1R is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management, and isolated switch-mode power supply designs requiring stable component supply and long-term lifecycle support.
Supply support for SI8441BA-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 engineered for high-reliability, high-speed digital isolation in safety-critical systems-targeting industrial automation, hybrid/electric vehicles, and isolated power conversion where legacy optocouplers fall short in speed, power, and lifetime.
FAQ
What is the maximum operating temperature for SI8441BA-D-IS1R?
The SI8441BA-D-IS1R is rated for continuous operation from –40 to 125 °C ambient temperature at full 150 Mbps data rate and 5 V supply. This specification is validated per AEC-Q100 Grade 1 and applies to both SOIC-16 wide-body and narrow-body variants of the SI8441Bx series. Thermal derating is not required within this range.
Does SI8441BA-D-IS1R require external components for basic operation?
No, SI8441BA-D-IS1R requires only 0.1 µF VDD bypass capacitors per supply rail (VDD1 and VDD2) placed near their respective pins. No external resistors, transformers, or timing components are needed-unlike optocouplers or transformer-based isolators-reducing BOM count and board space.
What safety certifications apply to SI8441BA-D-IS1R?
SI8441BA-D-IS1R carries UL 1577 (2500 VRMS), CSA Component Acceptance Notice 5A (IEC 60950-1/61010-1), and VDE 0884-2 (IEC 60747-5-2) certifications for reinforced insulation. All units undergo 100% production testing at 3000 VRMS for 1 second, exceeding the rated 2500 VRMS requirement.
How does the enable (EN) pin function on SI8441BA-D-IS1R?
The EN pin on SI8441BA-D-IS1R controls output driver state: when pulled high, all four OUTx pins actively drive; when pulled low, they enter high-impedance tri-state mode within 9.2 ns. This feature enables dynamic bus arbitration and hot-swap capability in modular power systems without external logic.
Is SI8441BA-D-IS1R pin-compatible with other Si844x variants?
Yes, SI8441BA-D-IS1R shares identical pinout and package (SOIC-16 wide body) with all Si844xBx variants (e.g., SI8442BA-D-IS1R, SI8445BA-D-IS1R). Channel count, directionality, and enable functionality are consistent; only data rate and internal configuration differ-allowing drop-in replacement within the Bx subfamily.
SI8441BA-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:
- 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-IS1R FAQ
1.How can I place an order for SI8441BA-D-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8441BA-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 SI8441BA-D-IS1R reliable?
The price and inventory of SI8441BA-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 SI8441BA-D-IS1R is usually 5 days.
3.What payment methods are accepted for SI8441BA-D-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8441BA-D-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8441BA-D-IS1R?
SI8441BA-D-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8441BA-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 SI8441BA-D-IS1R?
For technical support, including SI8441BA-D-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8441BA-D-IS1R requirements.
6.How does Aetrix verify that SI8441BA-D-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8441BA-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 SI8441BA-D-IS1R meets industry standards.
7.What is the process for return or replacement of SI8441BA-D-IS1R?
All SI8441BA-D-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8441BA-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 SI8441BA-D-IS1R part is unused and in its original packaging.
Return procedure for SI8441BA-D-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8441BA-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
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
