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Skyworks Solutions Inc. SI8442BB-C-IS1R
- Part No.:
- SI8442BB-C-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8442BB-C-IS1R.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,885
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Product details
Overview
SI8442BB-C-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, 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 <11.8 mA per side at 100 Mbps (5 V), enabling high-speed isolated communication in motor control and industrial power inverters.
For engineers reviewing the SI8442BB-C-IS1R datasheet, SI8442BB-C-IS1R pinout, SI8442BB-C-IS1R application, or SI8442BB-C-IS1R equivalent, this page provides verified timing specs, safety certifications (UL 1577, VDE 0884-2, CSA 5A), isolation parameters (2500 VRMS), and real-world design values for layout, power, and signal integrity planning.
Technical Context
The SI8442BB-C-IS1R uses capacitive isolation with on-chip RF modulation/demodulation circuitry to achieve high-speed, low-latency signal transfer across galvanic barriers. Its architecture supports independent bidirectional channels with no start-up initialization and stable performance from –40 °C to +125 °C at full 150 Mbps data rate.
All four channels feature matched propagation delay (±3.0 ns P-P skew), precise pulse width control (6 ns min), and integrated enable inputs that transition outputs to tri-state within 9.2 ns. The device meets reinforced insulation requirements per IEC 60747-5-2 and UL 1577, with 8.0 mm clearance/creepage in the wide-body SOIC package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 150 Mbps - supports high-speed serial interfaces like isolated SPI, RS-485 transceivers, and gate driver feedback loops. |
| Propagation Delay | 3.0–9.5 ns - enables sub-10 ns timing-critical applications such as PWM synchronization in motor drives. |
| Channel-Channel Skew | 0.5 ns typical - ensures tight timing alignment across all four isolated signals for multi-phase control systems. |
| Supply Current @ 100 Mbps | 11.8 mA per side (5 V) - reduces thermal load and simplifies power budgeting in compact industrial modules. |
| Common-Mode Transient Immunity | 25 kV/µs - maintains signal integrity in noisy environments like variable-frequency drives and power inverters. |
| Isolation Voltage | 2500 VRMS (1 min) - certified for reinforced insulation per UL, VDE, and CSA standards in safety-critical systems. |
| Operating Temperature | –40 °C to +125 °C - validated for continuous operation at full speed in automotive-grade and industrial ambient conditions. |
Pinout & Package
SI8442BB-C-IS1R is housed in a RoHS-compliant 16-pin wide-body SOIC package (WB-SOIC-16) with 8.0 mm minimum creepage and clearance, optimized for reinforced insulation in high-voltage systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Primary-side VDD1, GND1, INx, ENx | Pins 1–4: Input channels A–D; Pins 5–6: Enable inputs ENA–ENB; Pins 7–8: VDD1 and GND1 - primary-side power and signal interface. |
| 9, 10, 11, 12, 13, 14, 15, 16 | Secondary-side VDD2, GND2, OUTx | Pins 9–12: Output channels A–D; Pins 13–14: Enable outputs ENA#–ENB#; Pins 15–16: VDD2 and GND2 - isolated output domain with independent supply. |
Key Features
| Feature | Design Value |
|---|---|
| Quad-channel isolation | Four independent, bidirectional signal paths with matched timing - eliminates need for multiple discrete isolators in multi-signal systems. |
| No start-up initialization | Valid output data within 40 µs of power application - simplifies system boot sequencing and avoids firmware delays. |
| Enable-controlled tri-state | ENx inputs force corresponding OUTx into high-impedance state within 9.2 ns - enables bus sharing and hot-swap capability. |
| Low-power operation | <1.6 mA per channel at 1 Mbps (5 V) - extends battery life in portable test equipment and low-power industrial sensors. |
| Wide supply range | 2.70–5.5 V on both sides - supports interoperability between 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
Applications
| Industrial Motor Control | Isolated Switch-Mode Power Supply |
|---|---|
|
Use Scenario: Isolating PWM signals and current-sense feedback between MCU and gate drivers in 3-phase inverters. IC Role / Device Role / Timing Role: Quad-channel isolator providing synchronized, low-skew gate drive signals and ADC sampling triggers across isolation barrier. Use Value: 0.5 ns channel-channel skew and 9.5 ns max propagation delay ensure precise phase alignment and reduce torque ripple. |
Use Scenario: Isolating feedback signals (voltage/current) from secondary side to primary-side controller in LLC resonant converters. IC Role / Device Role / Timing Role: High-CMTI (25 kV/µs) isolator preserving analog-to-digital conversion accuracy under fast-switching noise. Use Value: 25 kV/µs CMTI prevents data corruption during 100+ V/ns switching transients, improving regulation stability. |
| Hybrid Electric Vehicle Inverter | Isolated Data Acquisition System |
|
Use Scenario: Transmitting isolated gate commands and fault status between vehicle MCU and traction inverter module. IC Role / Device Role / Timing Role: AEC-Q100 qualified quad isolator delivering robust, high-speed communication in under-hood environments. Use Value: –40 °C to +125 °C operation at full 150 Mbps ensures reliable PWM timing even during extended thermal soak cycles. |
Use Scenario: Isolating sensor inputs (thermocouples, strain gauges) and digital outputs in programmable logic controllers. IC Role / Device Role / Timing Role: Four-channel isolator enabling simultaneous acquisition of multiple analog channels with shared clock domain. Use Value: 6 ns minimum pulse width and 1.5 ns pulse width distortion preserve timing fidelity for high-resolution sigma-delta ADC interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM1402ARWZ | 4-channel, 100 Mbps, 25 kV/µs CMTI, 16-pin wide-body SOIC, but higher 10 ns max propagation delay and no enable pins. | Lacks dedicated enable inputs; requires external logic for tri-state control in shared-bus architectures. | Choose when enable functionality is unnecessary and legacy ADI footprint compatibility is required. |
| ISO6741QDWR | 4-channel, 50 Mbps, 16-pin SOIC, 1000 VRMS isolation, lower power (1.2 mA/ch @ 1 Mbps), but not AEC-Q100 qualified. | Rated only for basic insulation; unsuitable for reinforced insulation requirements in automotive traction systems. | Prefer for cost-sensitive industrial controls where 50 Mbps suffices and automotive qualification is not mandated. |
Compared with ADUM1402ARWZ and ISO6741QDWR, the SI8442BB-C-IS1R uniquely combines 150 Mbps speed, AEC-Q100 qualification, integrated enable inputs, and 2500 VRMS reinforced insulation-making it optimal for next-generation EV inverters and high-fidelity isolated data links.
Availability
SI8442BB-C-IS1R is available at Aetrix Electronics and suitable for industrial motor control, hybrid electric vehicle inverters, and isolated switch-mode power supplies requiring stable component supply, long-term lifecycle support, and certified safety compliance.
Supply support for SI8442BB-C-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 Si84xx family was designed specifically for high-reliability, high-speed digital isolation in safety-critical industrial and automotive systems-delivering superior CMTI, timing precision, and regulatory certification over optocoupler alternatives.
FAQ
What is the maximum operating temperature for SI8442BB-C-IS1R at full 150 Mbps data rate?
The SI8442BB-C-IS1R is fully specified for continuous operation from –40 °C to +125 °C at 150 Mbps, with worst-case propagation delay guaranteed ≤9.5 ns across this range. This rating applies to both wide-body SOIC packages and is validated per AEC-Q100 Grade 1 requirements, making SI8442BB-C-IS1R suitable for under-hood automotive and high-ambient industrial environments.
Does SI8442BB-C-IS1R support independent enable control for each channel?
No-SI8442BB-C-IS1R provides two enable inputs (ENA and ENB), each controlling two output channels (A/B and C/D respectively). When ENA is low, OUTA and OUTB enter tri-state; when ENB is low, OUTC and OUTD enter tri-state. This dual-enable architecture allows grouped channel control while maintaining minimal pin count, and is explicitly documented in the functional description section of the SI8442BB-C-IS1R datasheet.
What safety certifications apply to SI8442BB-C-IS1R?
SI8442BB-C-IS1R is certified to UL 1577 (2500 VRMS, 1 min), VDE 0884-2 (IEC 60747-5-2), and CSA Component Acceptance Notice 5A (IEC 60950-1/61010-1). These cover reinforced insulation with 8.0 mm creepage/clearance in the wide-body SOIC package, and all certifications are production-tested to 3000 VRMS for 1 second per regulatory protocol.
Can SI8442BB-C-IS1R operate with different supply voltages on primary and secondary sides?
Yes-SI8442BB-C-IS1R supports independent 2.70–5.5 V supplies on VDD1 (pins 7) and VDD2 (pin 15), enabling level translation between 3.3 V controllers and 5 V peripherals without external level shifters. Input thresholds (VIH ≥2.0 V, VIL ≤0.8 V) and output drive (VOH ≥VDD–0.4 V) are maintained across the full voltage range, as confirmed in Tables 3–5 of the SI8442BB-C-IS1R datasheet.
Is SI8442BB-C-IS1R pin-compatible with other members of the Si844x family?
Yes-SI8442BB-C-IS1R shares identical pinout, package (WB-SOIC-16), and footprint with all Si8440/41/42/45 variants, including Si8442AB-C-IS1R and Si8442BB-C-IS, differing only in speed grade (B = 150 Mbps) and temperature grade (C = –40 to +125 °C). This allows direct substitution within the same family for performance upgrades or qualification changes without PCB revision.
SI8442BB-C-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:
- 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-C-IS1R FAQ
1.How can I place an order for SI8442BB-C-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8442BB-C-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 SI8442BB-C-IS1R reliable?
The price and inventory of SI8442BB-C-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8442BB-C-IS1R is usually 5 days.
3.What payment methods are accepted for SI8442BB-C-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8442BB-C-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8442BB-C-IS1R?
SI8442BB-C-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8442BB-C-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 SI8442BB-C-IS1R?
For technical support, including SI8442BB-C-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8442BB-C-IS1R requirements.
6.How does Aetrix verify that SI8442BB-C-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8442BB-C-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 SI8442BB-C-IS1R meets industry standards.
7.What is the process for return or replacement of SI8442BB-C-IS1R?
All SI8442BB-C-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8442BB-C-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 SI8442BB-C-IS1R part is unused and in its original packaging.
Return procedure for SI8442BB-C-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8442BB-C-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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