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Skyworks Solutions Inc. SI8442BB-D-IS1
- Part No.:
- SI8442BB-D-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8442BB-D-IS1.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,326
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Product details
Overview
SI8442BB-D-IS1 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, 0.5–1.8 ns channel-channel skew, and ultra-low power consumption (11.8 mA per side at 100 Mbps, 5 V). It serves as a high-reliability signal isolator in isolated ADC interfaces and motor control gate drivers.
For engineers reviewing the SI8442BB-D-IS1 datasheet, SI8442BB-D-IS1 pinout, SI8442BB-D-IS1 application, or SI8442BB-D-IS1 equivalent, this page delivers verified timing specs, SOIC-16 wide-body package details, safety certifications (UL, CSA, VDE), and real-world substitution guidance for industrial and automotive isolation designs.
Technical Context
The SI8442BB-D-IS1 implements capacitive isolation with on-chip RF modulation/demodulation across four independent bidirectional channels. Its dual-supply architecture (VDD1/VDD2 = 2.7–5.5 V) enables level-shifting between isolated domains while maintaining precise timing-propagation delay skew ≤3.0 ns and pulse width distortion ≤2.5 ns at 150 Mbps.
It integrates enable-controlled output tri-state functionality (ten1 ≤8.0 ns, ten2 ≤9.2 ns), supports 25 kV/µs common-mode transient immunity, and meets IEC 60747-5-2 (VDE 0884-2) for reinforced insulation up to 560 VPEAK working voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 150 Mbps maximum - supports high-speed serial links like SPI, RS-485 transceiver control, and isolated PWM feedback. |
| Propagation Delay | 3.0–9.5 ns - ensures tight timing alignment in closed-loop motor control and fast ADC sampling systems. |
| Channel-Channel Skew | 0.5–1.8 ns - enables synchronous multi-channel acquisition without inter-channel timing error compensation. |
| Isolation Voltage | 2500 VRMS (1 min) - certified for reinforced insulation in industrial PLCs and EV battery management systems. |
| Supply Voltage Range | 2.70–5.5 V per side - allows interoperability with both 3.3 V microcontrollers and 5 V legacy logic or analog circuitry. |
| Power Consumption | 11.8 mA per side at 100 Mbps (5 V) - reduces thermal load in densely packed isolated power supply controllers. |
| CMTI | 25 kV/µs minimum - prevents data corruption during fast-switching events in IGBT/MOSFET gate driver circuits. |
Pinout & Package
SI8442BB-D-IS1 is housed in a 16-pin wide-body SOIC package (package width 10.3 mm, creepage/clearance ≥8.0 mm), optimized for reinforced insulation compliance per UL, CSA, and VDE standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Input A1–A4 | Primary-side digital inputs; accept CMOS/TTL logic levels (VIH ≥2.0 V, VIL ≤0.8 V). |
| 5, 6, 7, 8 | VDD1, GND1, EN1, NC | VDD1 powers input side; EN1 enables/disables all A-side outputs; NC is no-connect. |
| 9, 10, 11, 12 | Output B1–B4 | Secondary-side isolated outputs; drive loads up to 4 mA with VOH ≥VDD2–0.4 V. |
| 13, 14, 15, 16 | VDD2, GND2, EN2, NC | VDD2 powers output side; EN2 controls B-side outputs; second NC terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Quad-channel isolation | Four independent, bidirectional signal paths in one SOIC-16 package-reduces board area vs. discrete optocouplers. |
| Low-power operation | 11.8 mA per side at 100 Mbps (5 V) enables energy-efficient designs in thermally constrained inverters and battery-powered sensors. |
| Precision timing | ≤1.8 ns channel-channel skew and ≤2.5 ns pulse width distortion support deterministic real-time control loops. |
| High CMTI | 25 kV/µs immunity ensures robustness against fast dv/dt noise in SiC/GaN-based power stages. |
| Safety certification | UL 1577 (2500 VRMS), CSA 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2 qualified for reinforced insulation systems. |
Applications
| Industrial PLC I/O Modules | EV Traction Inverter Gate Drivers |
|---|---|
|
Use Scenario: Isolating digital status and control signals between field-side sensors/actuators and CPU backplane in harsh factory environments. IC Role / Device Role / Timing Role: Quad-channel isolator providing galvanic separation for 4x DI/DO lines with synchronized timing for coordinated I/O updates. Use Value: Enables 150 Mbps update rates and withstands >25 kV/µs transients from nearby motor contactors or welding equipment. |
Use Scenario: Level-shifting PWM signals from MCU to isolated gate drivers in 400–800 V traction inverters. IC Role / Device Role / Timing Role: High-speed, low-skew isolator delivering matched timing to multiple half-bridge gate drivers for precise dead-time control. Use Value: 0.5 ns typical channel-channel skew minimizes shoot-through risk; 2500 VRMS rating meets ISO 26262 ASIL-D system requirements. |
| Isolated Sigma-Delta ADC Interfaces | Renewable Energy Solar Inverters |
|
Use Scenario: Transmitting oversampled bitstream data from isolated ΣΔ modulators (e.g., AD7403) to DSP/FPGA across high-voltage barriers. IC Role / Device Role / Timing Role: Low-jitter, high-bandwidth isolator preserving integrity of 20+ MHz bitstreams without added latency or skew. Use Value: 9.5 ns max propagation delay and 6 ns min pulse width ensure accurate clock/data recovery at 20 MSPS sampling rates. |
Use Scenario: Isolating DC-link voltage sensing, current feedback, and grid-synchronization signals in string-level solar inverters. IC Role / Device Role / Timing Role: Four-channel isolator handling simultaneous voltage monitoring, current sensing, PWM control, and fault reporting. Use Value: Dual supply (2.7–5.5 V) supports mixed-voltage domains; 125 °C ambient rating matches under-hood thermal profiles. |
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 (4.01 mm creepage) | Limited to 105 °C max ambient; lower creepage limits restrict use in high-pollution industrial zones. | Prefer SI8442BB-D-IS1 where reinforced insulation, 125 °C operation, or ≥8.0 mm creepage is required. |
| ISO6741QDWR | 4-channel, 50 Mbps, 5 kVRMS, SOIC-16 wide body, AEC-Q100 Grade 1 | Lower data rate; higher isolation voltage but lacks 150 Mbps capability for high-resolution encoder or fast ADC links. | Select SI8442BB-D-IS1 when 150 Mbps speed and sub-2 ns skew are mandatory for real-time control. |
Compared with ADUM140D0BRIZ and ISO6741QDWR, the SI8442BB-D-IS1 uniquely combines 150 Mbps speed, 125 °C operation, 2500 VRMS reinforced isolation, and 0.5 ns typical channel skew-making it optimal for high-fidelity motor control and isolated high-speed data acquisition where timing fidelity and thermal resilience are critical.
Availability
SI8442BB-D-IS1 is available at Aetrix Electronics and suitable for industrial automation systems, hybrid electric vehicle powertrain modules, and isolated switch mode supplies requiring stable component supply and long-term lifecycle support.
Supply support for SI8442BB-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 SI8442BB-D-IS1 belongs to Skyworks' Si84xx family of ultra-low-power digital isolators, engineered for high-reliability signal isolation in industrial, automotive, and energy infrastructure applications demanding precision timing and safety certification.
FAQ
What is the maximum operating temperature for SI8442BB-D-IS1?
The SI8442BB-D-IS1 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 across both wide-body SOIC package variants and aligns with AEC-Q100 Grade 0 qualification requirements for automotive under-hood use cases.
Does SI8442BB-D-IS1 support independent enable control for each channel?
No, SI8442BB-D-IS1 provides two global enable inputs: EN1 controls all four A-side outputs (pins 1–4), and EN2 controls all four B-side outputs (pins 9–12). There is no per-channel enable; both enables assert tri-state simultaneously on their respective sides with ten2 ≤9.2 ns delay.
What safety certifications apply to SI8442BB-D-IS1?
SI8442BB-D-IS1 carries UL 1577 recognition (2500 VRMS, 1 min), CSA Component Acceptance Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2 certification. These cover reinforced insulation up to 560 VPEAK working voltage and are production-tested to 3000 VRMS for 1 second.
Can SI8442BB-D-IS1 operate with mismatched supply voltages on VDD1 and VDD2?
Yes, SI8442BB-D-IS1 supports independent 2.70–5.5 V supplies on VDD1 and VDD2, enabling true level translation-for example, 3.3 V MCU logic on side A and 5 V analog front-end on side B-without external level shifters or voltage translators.
What is the minimum pulse width supported by SI8442BB-D-IS1 at 150 Mbps?
At 150 Mbps operation, SI8442BB-D-IS1 guarantees a minimum pulse width of 6.0 ns (typical), as specified in Table 3 timing characteristics. This enables reliable transmission of narrow pulses used in high-frequency PWM control and fast edge-triggered interrupts.
SI8442BB-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:
- 2/2
- 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
SI8442BB-D-IS1 FAQ
1.How can I place an order for SI8442BB-D-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8442BB-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 SI8442BB-D-IS1 reliable?
The price and inventory of SI8442BB-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 SI8442BB-D-IS1 is usually 5 days.
3.What payment methods are accepted for SI8442BB-D-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8442BB-D-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8442BB-D-IS1?
SI8442BB-D-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8442BB-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 SI8442BB-D-IS1?
For technical support, including SI8442BB-D-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8442BB-D-IS1 requirements.
6.How does Aetrix verify that SI8442BB-D-IS1 is sourced from the original manufacturer or authorized distributors?
All SI8442BB-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 SI8442BB-D-IS1 meets industry standards.
7.What is the process for return or replacement of SI8442BB-D-IS1?
All SI8442BB-D-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8442BB-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 SI8442BB-D-IS1 part is unused and in its original packaging.
Return procedure for SI8442BB-D-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8442BB-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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