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Skyworks Solutions Inc. SI8462BA-B-IS1R
- Part No.:
- SI8462BA-B-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8462BA-B-IS1R.pdf
- Description:
- DGTL ISO 1000VRMS 6CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,640
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Product details
Overview
SI8462BA-B-IS1R from Skyworks Solutions is a six-channel, ultra-low-power digital isolator in a 16-pin narrow-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 <13.3 mA per side at 100 Mbps (5 V), enabling high-speed isolation in motor control and isolated power supplies.
For engineers reviewing the SI8462BA-B-IS1R datasheet, SI8462BA-B-IS1R pinout, SI8462BA-B-IS1R application, or SI8462BA-B-IS1R equivalent, key selection criteria include its 2500 VRMS reinforced insulation rating (UL/CSA/VDE certified), 6-channel unidirectional configuration (3 channels per side), and guaranteed performance from –40 °C to 125 °C at full speed - critical for industrial inverters and HEV battery management systems.
Technical Context
The SI8462BA-B-IS1R implements capacitive isolation using on-chip RF modulation/demodulation, eliminating magnetic or optical coupling limitations. Its architecture supports independent primary-side (VDD1) and secondary-side (VDD2) supplies, enabling level-shifting between 2.7 V and 5.5 V domains without external logic.
All six channels are unidirectional, with three inputs on side A (pins 1–3, 16, 15, 14) and three outputs on side B (pins 4–6, 7, 8, 9), configured as fixed-direction signal paths. Timing parameters-including 1.5 ns typical pulse width distortion and 6 ns minimum pulse width-are specified across full temperature and voltage ranges, ensuring deterministic behavior in real-time control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 150 Mbps - enables high-bandwidth feedback in servo drives and gigabit-capable serial interfaces. |
| Propagation Delay | 3.0–9.5 ns (typ/max) - ensures sub-10 ns timing precision for gate driver synchronization in SiC/GaN inverters. |
| Channel-Channel Skew | 0.5–1.8 ns (typ/max) - maintains phase alignment across multi-phase PWM signals in motor control ICs. |
| Isolation Voltage | 2500 VRMS (1 min) - meets reinforced insulation requirements for IEC 61800-5-1 and UL 61800-5-1 safety compliance. |
| Supply Range | 2.70–5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| CMTI | 25 kV/µs - suppresses false triggering during fast-switching transients in 100+ kHz power converters. |
| Operating Temp | –40 to 125 °C - sustains full 150 Mbps operation in under-hood automotive and industrial ambient conditions. |
Pinout & Package
SI8462BA-B-IS1R is housed in a RoHS-compliant 16-pin narrow-body SOIC package (5.3 mm width, 10.3 mm length), with creepage and clearance ≥3.9 mm per IEC 60664-1 and VDE-certified internal insulation structure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 14, 15, 16 | Side A Inputs (INA1–INA3, INB1–INB3) | Unidirectional input pins referenced to VDD1; accept 2.0 V min VIH and 0.8 V max VIL for TTL/CMOS compatibility. |
| 4, 5, 6, 7, 8, 9 | Side B Outputs (OUTA1–OUTA3, OUTB1–OUTB3) | Unidirectional output pins referenced to VDD2; drive 4 mA loads with VOH ≥ VDD2–0.4 V and VOL ≤ 0.4 V. |
| 10, 13 | VDD1, VDD2 | Independent power supplies for isolation barrier sides; each requires local 0.1 µF bypass capacitor to GND. |
| 11, 12 | GND1, GND2 | Separate ground references for primary and secondary sides; no internal connection - must be isolated PCB planes. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power at 100 Mbps | 13.3 mA per side (5 V) - reduces thermal load in densely packed gate driver boards and extends battery life in portable test equipment. |
| No start-up initialization | Valid output within 40 µs of power application - eliminates boot-time delays in safety-critical shutdown circuits. |
| Precision timing | 1.5 ns typical pulse width distortion - preserves duty cycle fidelity in high-resolution PWM generation for audio amplifiers and Class D drivers. |
| High EMI immunity | 25 kV/µs CMTI - prevents data corruption during simultaneous switching of multiple high-current IGBTs in VFDs. |
| 60-year lifetime | Rated at 2500 VRMS working voltage - assures long-term reliability in medical imaging power supplies and renewable energy inverters. |
Applications
| Industrial Motor Drives | Hybrid Electric Vehicle Battery Management |
|---|---|
Use Scenario: Isolating PWM signals from MCU to 3-phase gate drivers in variable-frequency drives operating at 20 kHz switching frequency. IC Role / Device Role / Timing Role: Six-channel unidirectional isolator transmitting three complementary PWM pairs across isolation barrier with <1.8 ns skew. Use Value: Enables precise dead-time control and prevents shoot-through in SiC half-bridges by maintaining sub-2 ns inter-channel timing integrity at full 150 Mbps capability. | Use Scenario: Transmitting cell voltage monitoring data and pack contactor control signals between high-voltage battery stack (up to 800 VDC) and low-voltage MCU domain. IC Role / Device Role / Timing Role: Provides reinforced 2500 VRMS isolation for analog front-end ADC interface and digital contactor enable/disable commands. Use Value: Meets ISO 6469-3 functional safety requirements for EV battery systems while supporting 100+ kHz sampling rates via isolated SPI links. |
| Isolated Switch-Mode Power Supplies | Industrial PLC Digital I/O Modules |
Use Scenario: Feedback path for secondary-side voltage regulation in 1 kW LLC resonant converters with synchronous rectification. IC Role / Device Role / Timing Role: Transmits isolated error amplifier output and overvoltage protection signals across 2500 VRMS barrier with <10 ns propagation delay. Use Value: Reduces loop latency versus optocouplers, enabling >500 kHz bandwidth control loops and improving dynamic load response by 3×. | Use Scenario: Galvanic isolation of 24 V DC field inputs and 24 V relay outputs in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Replaces six discrete optocouplers with single 16-pin SOIC, handling 3 input sensing + 3 output driving channels. Use Value: Cuts board area by 65%, lowers BOM count, and improves MTBF over legacy opto-based designs due to CMOS reliability and no LED aging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM140D0BRZ | 4-channel, 150 Mbps, 2.5 kVRMS, SOIC-16; higher 16.5 mA supply current at 100 Mbps (5 V). | Limited to four channels; requires two devices for six-signal isolation, increasing layout complexity and cost. | Select when needing tighter 0.5 ns max channel skew or integrated fault detection - not for direct six-channel replacement. |
| ISO6760QDWR | 6-channel, 50 Mbps, 5 kVRMS, SOIC-16; lower speed but higher isolation rating and 100 kV/µs CMTI. | Insufficient for 100+ Mbps encoder feedback or high-speed SPI; suited for slower sensor bus isolation in harsh EMI environments. | Choose only if system prioritizes 5 kVRMS isolation over data rate - not suitable for servo loop closure or real-time control. |
Compared with ADUM140D0BRZ and ISO6760QDWR, SI8462BA-B-IS1R uniquely balances six-channel density, 150 Mbps speed, and 2500 VRMS certification in a single narrow-body SOIC, making it optimal for space-constrained industrial inverters where both bandwidth and safety compliance are non-negotiable.
Availability
SI8462BA-B-IS1R is available at Aetrix Electronics and suitable for industrial motor drives, hybrid electric vehicle battery management systems, and isolated switch-mode power supplies requiring stable component supply, long-lifecycle support, and certified safety isolation.
Supply support for SI8462BA-B-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 engineered specifically for high-reliability industrial and automotive isolation, emphasizing low power, precise timing, and regulatory-compliant reinforced insulation in compact packages.
FAQ
What is the maximum data rate supported by SI8462BA-B-IS1R?
The SI8462BA-B-IS1R supports a maximum data rate of 150 Mbps under all operating conditions (2.70–5.5 V, –40 to 125 °C). This is confirmed in Table 3 and Table 4 timing characteristics for Si846xBx variants, where "B" denotes the high-speed version. The SI8462BA-B-IS1R achieves this with worst-case propagation delay ≤9.5 ns and pulse width distortion ≤2.5 ns, making it suitable for high-speed serial interfaces like isolated SPI and encoder feedback in servo systems.
Does SI8462BA-B-IS1R support bidirectional communication?
No, SI8462BA-B-IS1R is a unidirectional six-channel isolator with fixed directionality: three channels transmit from side A to side B (pins 1–3, 14–16 → 4–6), and three channels transmit from side B to side A (pins 4–6, 7–9 → 1–3, 14–16), as defined in the pin descriptions section of the datasheet. It does not support dynamic bidirectional protocols like I²C without external logic; for true bidirectional isolation, Skyworks recommends the Si840x or Si86xx families.
What safety certifications apply to SI8462BA-B-IS1R?
SI8462BA-B-IS1R is certified to UL 1577 (2500 VRMS, File E257455), CSA Component Acceptance Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2 (File 5006301-4880-0001). These approvals cover reinforced insulation up to 2500 VRMS for 1 minute, with production testing to 3000 VRMS, and are explicitly stated in Table 6 and the Regulatory Information section of the datasheet.
Can SI8462BA-B-IS1R operate with different supply voltages on each side?
Yes, SI8462BA-B-IS1R supports independent VDD1 (side A) and VDD2 (side B) supplies ranging from 2.70 V to 5.5 V each. This enables level translation - for example, interfacing a 3.3 V FPGA I/O bank to a 5 V analog front-end - without external level shifters. The datasheet confirms this in Table 1 (Recommended Operating Conditions) and Figure 1, where VDD1 and VDD2 are treated as separate bias domains.
Is SI8462BA-B-IS1R recommended for new designs?
No - the datasheet Rev. 1.6 (August 11, 2021) explicitly states "Not Recommended for New Designs" on the cover page and Section 1. This designation indicates Skyworks has superseded SI8462BA-B-IS1R with newer generations (e.g., Si86xx or Si88xx families) offering improved power efficiency, higher CMTI, or enhanced safety ratings. However, SI8462BA-B-IS1R remains fully supported for existing production and legacy design refreshes with verified qualification.
SI8462BA-B-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:
- 6
- Inputs - Side 1/Side 2:
- 4/2
- 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
SI8462BA-B-IS1R FAQ
1.How can I place an order for SI8462BA-B-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8462BA-B-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 SI8462BA-B-IS1R reliable?
The price and inventory of SI8462BA-B-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8462BA-B-IS1R is usually 5 days.
3.What payment methods are accepted for SI8462BA-B-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8462BA-B-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8462BA-B-IS1R?
SI8462BA-B-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8462BA-B-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 SI8462BA-B-IS1R?
For technical support, including SI8462BA-B-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8462BA-B-IS1R requirements.
6.How does Aetrix verify that SI8462BA-B-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8462BA-B-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 SI8462BA-B-IS1R meets industry standards.
7.What is the process for return or replacement of SI8462BA-B-IS1R?
All SI8462BA-B-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8462BA-B-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 SI8462BA-B-IS1R part is unused and in its original packaging.
Return procedure for SI8462BA-B-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8462BA-B-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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