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Home > Products > Isolators > Digital Isolators

Skyworks Solutions Inc. SI8462AA-A-IS1

Name: SI8462AA-A-IS1
Brand: Skyworks Solutions Inc.
SKU: SI8462AA-A-IS1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI8462AA-A-IS1

Manufacturer:: Skyworks Solutions Inc.

Category:: Digital Isolators

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: SI8462AA-A-IS1.pdf

Description:: DGTL ISO 1000VRMS 6CH GP 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI8462AA-A-IS1 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 under 9.5 ns, 0.5 ns channel-to-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 SI8462AA-A-IS1 datasheet, SI8462AA-A-IS1 pinout, SI8462AA-A-IS1 application, or SI8462AA-A-IS1 equivalent, key selection criteria include its 150 Mbps capability, 2.5 kV_RMS reinforced insulation rating, 6-channel unidirectional configuration (3+3), and operation from –40°C to +125°C at full speed - critical for industrial inverters and HEV battery management systems.

Technical Context

The SI8462AA-A-IS1 implements capacitive isolation with on-chip RF modulation/demodulation, eliminating startup initialization and ensuring deterministic timing behavior. Its architecture supports independent primary- and secondary-side supplies (VDD1/VDD2), enabling level-shifting between 2.7 V and 5.5 V domains without external components beyond bypass capacitors.

It features 85 Ω nominal output impedance per channel, optimized for controlled-impedance PCB routing, and achieves 6 ns minimum pulse width with 1.5 ns typical pulse width distortion - essential for preserving signal integrity in high-frequency gate drive and ADC sampling interfaces.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	Up to 150 Mbps - enables real-time feedback in 20 kHz+ motor control loops and fast serial interfaces like SPI/CAN FD physical layer isolation.
Propagation Delay	3.0–9.5 ns (typ/max) - ensures sub-10 ns latency for time-critical gate driver enable/disable signals in SiC/GaN power stages.
Channel-Channel Skew	0.5 ns (typ) - maintains precise phase alignment across multiple isolated PWM channels in 3-phase inverter control.
Isolation Voltage	2500 V_RMS (1 min) - meets reinforced insulation requirements per IEC 60747-5-2, UL 1577, and CSA 5A for functional safety up to 300 V_RMS working voltage.
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 high-di/dt power converters.
Operating Temp	–40°C to +125°C at 150 Mbps - qualified for under-hood automotive and industrial ambient environments without derating.

Pinout & Package

SI8462AA-A-IS1 is housed in a RoHS-compliant 16-pin narrow-body SOIC package (7.5 mm × 10.3 mm, 1.27 mm pitch) with creepage/clearance ≥3.9 mm and internal isolation barrier rated to 3600 V_RMS surge.

Pin/Terminal	Circuit Role	Design Meaning
VDD1	Primary-side supply	Power input for input-side logic and isolation transmitter; accepts 2.70–5.5 V with bypass capacitor required.
GND1	Primary-side ground	Reference return for VDD1 domain; must be separated from GND2 by isolation barrier.
IN1–IN3	Input signal terminals	Unidirectional CMOS-compatible inputs accepting 0–VDD1 logic; no external pull-ups needed.
VDD2	Secondary-side supply	Independent power for output-side logic and receiver; supports different voltage than VDD1.
GND2	Secondary-side ground	Reference return for VDD2 domain; galvanically isolated from GND1.
OUT1–OUT3	Output signal terminals	CMOS outputs driving 4 mA sink/source; 85 Ω matched impedance for controlled-impedance trace routing.
NC	No-connect pins	Pins 1, 2, 15, 16 are internally unused; must remain unconnected per datasheet.

Key Features

Feature	Design Value
Zero-startup-delay operation	Valid output data within 40 µs of power application - eliminates boot-time synchronization delays in safety-critical systems.
Low-power 100 Mbps mode	13.3 mA per side at 100 Mbps (5 V) - reduces thermal load in densely packed isolated DC-DC controllers.
High CMTI immunity	25 kV/µs common-mode rejection - prevents data corruption during 100 A/µs switching events in 650 V SiC half-bridges.
Precision timing	0.5 ns channel-to-channel skew and 1.5 ns pulse width distortion - preserves edge alignment for multi-channel PWM generation.
Wide temperature stability	Full 150 Mbps performance maintained from –40°C to +125°C - avoids data-rate throttling in outdoor industrial drives.

Applications

Industrial Motor Drives	Isolated Switch-Mode Power Supplies
Use Scenario: Isolating PWM signals from MCU to three-phase gate drivers in variable-frequency drives operating at 16 kHz switching frequency. IC Role / Device Role / Timing Role: Six-channel unidirectional isolator delivering synchronized, low-skew gate enable/disable signals across high-voltage barriers. Use Value: Enables 0.5 ns inter-channel timing precision to prevent shoot-through in IGBT/SiC modules while sustaining 150 Mbps throughput for dynamic dead-time adjustment.	Use Scenario: Providing feedback isolation for voltage/current sensing in 1 kW LLC resonant converters with 300 V_DC bus. IC Role / Device Role / Timing Role: Isolating analog-to-digital converter outputs and controller PWM returns across 2.5 kV_RMS barrier. Use Value: Delivers 25 kV/µs CMTI immunity to reject noise from high-di/dt transformer windings, ensuring stable regulation under transient load steps.
Hybrid Electric Vehicle Battery Management	Isolated Data Acquisition Systems
Use Scenario: Isolating cell voltage monitoring and pack contactor control signals in 400 V battery packs with distributed sensing nodes. IC Role / Device Role / Timing Role: Bidirectional-capable (via external logic) six-channel isolator supporting both telemetry upload and safety-critical disconnect commands. Use Value: Maintains 125°C operation and 2.5 kV_RMS isolation rating required for ASIL-B functional safety compliance in traction battery subsystems.	Use Scenario: Isolating SPI communication between host processor and isolated ADC/DAC in high-precision test equipment measuring µV-level signals. IC Role / Device Role / Timing Role: High-speed digital isolator preserving 150 Mbps SPI clock integrity across isolation barrier for 1 MSPS sampling. Use Value: Achieves 6 ns minimum pulse width and 1.5 ns pulse width distortion to maintain setup/hold margins for SPI SCLK edges at full data rate.

Industrial Motor Drives

Isolated Switch-Mode Power Supplies

Use Scenario: Isolating PWM signals from MCU to three-phase gate drivers in variable-frequency drives operating at 16 kHz switching frequency.

IC Role / Device Role / Timing Role: Six-channel unidirectional isolator delivering synchronized, low-skew gate enable/disable signals across high-voltage barriers.

Use Value: Enables 0.5 ns inter-channel timing precision to prevent shoot-through in IGBT/SiC modules while sustaining 150 Mbps throughput for dynamic dead-time adjustment.

Use Scenario: Providing feedback isolation for voltage/current sensing in 1 kW LLC resonant converters with 300 V_DC bus.

IC Role / Device Role / Timing Role: Isolating analog-to-digital converter outputs and controller PWM returns across 2.5 kV_RMS barrier.

Use Value: Delivers 25 kV/µs CMTI immunity to reject noise from high-di/dt transformer windings, ensuring stable regulation under transient load steps.

Hybrid Electric Vehicle Battery Management

Isolated Data Acquisition Systems

Use Scenario: Isolating cell voltage monitoring and pack contactor control signals in 400 V battery packs with distributed sensing nodes.

IC Role / Device Role / Timing Role: Bidirectional-capable (via external logic) six-channel isolator supporting both telemetry upload and safety-critical disconnect commands.

Use Value: Maintains 125°C operation and 2.5 kV_RMS isolation rating required for ASIL-B functional safety compliance in traction battery subsystems.

Use Scenario: Isolating SPI communication between host processor and isolated ADC/DAC in high-precision test equipment measuring µV-level signals.

IC Role / Device Role / Timing Role: High-speed digital isolator preserving 150 Mbps SPI clock integrity across isolation barrier for 1 MSPS sampling.

Use Value: Achieves 6 ns minimum pulse width and 1.5 ns pulse width distortion to maintain setup/hold margins for SPI SCLK edges at full data rate.

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital isolator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM140D0BRZ	Quad-channel, 150 Mbps, 2.5 kV_RMS, but only 4 channels vs. SI8462AA-A-IS1's 6 channels; higher 100 Mbps supply current (18.5 mA/side).	Limited to 4-signal isolation; unsuitable for 3-phase gate drive requiring 6 independent paths.	Select when system requires only four isolated signals and ADI ecosystem compatibility is prioritized.
ISO6760QDWR	Six-channel, 50 Mbps max, 5 kV_RMS, 2.7–5.5 V, but lower speed limits use in >20 MHz clock domains.	Insufficient for 150 Mbps SPI or fast PWM; better suited for slower UART/IO-link isolation.	Choose only if 5 kV_RMS isolation is mandatory and data rate ≤50 Mbps suffices.

Compared with ADUM140D0BRZ and ISO6760QDWR, SI8462AA-A-IS1 uniquely delivers six-channel 150 Mbps isolation with sub-nanosecond skew in a standard SOIC-16 footprint - making it the only option for space-constrained, high-speed motor control designs needing full 3-phase gate drive isolation plus auxiliary signaling.

Availability

SI8462AA-A-IS1 is available at Aetrix Electronics and suitable for industrial motor drives, hybrid electric vehicle battery management, and isolated switch-mode power supplies requiring stable component supply and long-term lifecycle support.

Supply support for SI8462AA-A-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 Si84xx family was designed specifically for high-reliability, high-speed digital isolation in harsh industrial and automotive environments - emphasizing low power, precise timing, and robust safety certification.

FAQ

What is the maximum data rate supported by SI8462AA-A-IS1?

The SI8462AA-A-IS1 supports a maximum data rate of 150 Mbps under specified conditions (VDD = 5 V, TA = –40°C to +125°C). This is confirmed in Table 3 and Table 4 of the Skyworks datasheet Rev. 1.6, where Si8462Bx variants (including SI8462AA-A-IS1) are explicitly rated for 0–150 Mbps operation with 6 ns minimum pulse width and 9.5 ns worst-case propagation delay.

Does SI8462AA-A-IS1 require external startup circuitry or initialization?

No, SI8462AA-A-IS1 requires no startup initialization. Valid output data appears within 40 µs of power application (tSU = 15–40 µs), as specified in Table 3. This zero-initialization behavior is inherent to its capacitive isolation architecture and eliminates firmware dependencies for power-on sequencing in safety-critical systems using SI8462AA-A-IS1.

What safety certifications apply to SI8462AA-A-IS1?

SI8462AA-A-IS1 is certified to UL 1577 (2500 V_RMS), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2. These approvals cover reinforced insulation up to 300 V_RMS working voltage and are verified per Table 6 and Section 15 of the datasheet Rev. 1.6 - confirming SI8462AA-A-IS1's suitability for industrial and automotive isolation barriers.

Can SI8462AA-A-IS1 operate with different supply voltages on each side?

Yes, SI8462AA-A-IS1 supports independent VDD1 and VDD2 supplies ranging from 2.70 V to 5.5 V each. Electrical Characteristics tables (Tables 3–5) explicitly list separate VDD1/VDD2 current measurements, and the Functional Description section confirms bidirectional level-shifting capability - enabling SI8462AA-A-IS1 to interface a 3.3 V MCU with a 5 V gate driver stage without external level translators.

What is the channel configuration of SI8462AA-A-IS1?

SI8462AA-A-IS1 provides six unidirectional channels in a 3+3 configuration: IN1–IN3 feed OUT1–OUT3 respectively, with no cross-channel routing. This is defined in the Pin Descriptions section (page 27) and confirmed by the "Si8462" designation in the family naming convention - distinguishing it from Si8460 (1+1), Si8461 (2+2), and Si8463 (4+2) variants. The 'AA' suffix denotes this specific 3+3 channel mapping.

SI8462AA-A-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:: 6

Inputs - Side 1/Side 2:: 4/2

Channel Type:: Unidirectional

Voltage - Isolation:: 1000Vrms

Common Mode Transient Immunity (Min):: 25kV/µs (Typ)

Data Rate:: 1Mbps

Propagation Delay tpLH / tpHL (Max):: 35ns, 35ns

Pulse Width Distortion (Max):: 25ns

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

SI8462AA-A-IS1 FAQ

1.How can I place an order for SI8462AA-A-IS1 through Aetrix?

Please submit a Request for Quotation (RFQ) for SI8462AA-A-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 SI8462AA-A-IS1 reliable?

The price and inventory of SI8462AA-A-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8462AA-A-IS1 is usually 5 days.

3.What payment methods are accepted for SI8462AA-A-IS1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8462AA-A-IS1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI8462AA-A-IS1?

SI8462AA-A-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI8462AA-A-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 SI8462AA-A-IS1?

For technical support, including SI8462AA-A-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8462AA-A-IS1 requirements.

6.How does Aetrix verify that SI8462AA-A-IS1 is sourced from the original manufacturer or authorized distributors?

All SI8462AA-A-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 SI8462AA-A-IS1 meets industry standards.

7.What is the process for return or replacement of SI8462AA-A-IS1?

All SI8462AA-A-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8462AA-A-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 SI8462AA-A-IS1 part is unused and in its original packaging.

Return procedure for SI8462AA-A-IS1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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