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Home > Products > Isolators > Digital Isolators

Skyworks Solutions Inc. SI8463AB-B-IS1

Name: SI8463AB-B-IS1
Brand: Skyworks Solutions Inc.
SKU: SI8463AB-B-IS1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI8463AB-B-IS1

Manufacturer:: Skyworks Solutions Inc.

Category:: Digital Isolators

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

Datasheet:: SI8463AB-B-IS1.pdf

Description:: DGTL ISO 2500VRMS 6CH GP 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI8463AB-B-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, <1.5 ns pulse width distortion, and 0.5 ns channel-channel skew-designed for high-noise industrial motor control and isolated ADC interfaces.

For engineers reviewing the SI8463AB-B-IS1 datasheet, SI8463AB-B-IS1 pinout, SI8463AB-B-IS1 application, or SI8463AB-B-IS1 equivalent, key selection criteria include its 2.7–5.5 V dual-supply operation, 25 kV/µs common-mode transient immunity, 2500 VRMS isolation rating, and precise timing performance across –40 to +125 °C ambient temperature.

Technical Context

The SI8463AB-B-IS1 implements capacitive isolation with on-chip RF modulation/demodulation circuitry, enabling robust signal transmission across galvanically isolated domains without magnetic or optical components. It features independent primary and secondary supply domains (VDD1/VDD2), each supporting 2.7–5.5 V, and requires no start-up initialization.

Its timing architecture delivers deterministic latency with <9.5 ns max propagation delay, <2.5 ns pulse width distortion, and <1.8 ns channel-channel skew at 150 Mbps-enabling synchronous sampling in isolated feedback loops for power inverters and servo drives.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	Up to 150 Mbps - supports high-speed serial interfaces like SPI, RS-485 transceiver control, and isolated gate driver feedback.
Propagation Delay	3.0–9.5 ns - enables sub-10 ns timing-critical isolation in real-time motor control and digital power management.
Channel-Channel Skew	0.5–1.8 ns - ensures tight synchronization across all six channels for multi-phase current sensing or PWM signal distribution.
CMTI	25 kV/µs - maintains signal integrity during fast-switching events in SiC/GaN-based inverters and industrial drives.
Isolation Voltage	2500 VRMS - certified for reinforced insulation per UL 1577, CSA 5A, and VDE IEC 60747-5-2 standards.
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-shifting.
Power @ 100 Mbps	17.2 mA per supply at 5 V - ultra-low active power enables thermally constrained designs in sealed enclosures.

Pinout & Package

SI8463AB-B-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 and clearance ≥3.9 mm, qualified for reinforced insulation per IEC 60747-5-2.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6	Primary-side input channels (IN1–IN6)	Digital inputs referenced to VDD1; accept 2.0 V min VIH and 0.8 V max VIL for 3.3/5 V logic compatibility.
7, 8, 9, 10, 11, 12	Secondary-side output channels (OUT1–OUT6)	CMOS outputs referenced to VDD2; drive 4 mA loads with VOH ≥ VDD2–0.4 V and VOL ≤ 0.4 V.
13, 16	VDD1 and VDD2	Independent 2.7–5.5 V supplies for input and output sides-enables level translation and fault containment.
14, 15	GND1 and GND2	Galvanically isolated ground references; must not be connected externally to preserve isolation barrier integrity.

Key Features

Feature	Design Value
Ultra-low power at high speed	17.2 mA per supply at 100 Mbps and 5 V-reduces thermal load in dense PCB layouts and extends battery life in portable test equipment.
Precision timing performance	0.5 ns typical channel-channel skew and 1.5 ns pulse width distortion-supports synchronized sampling of three-phase currents in motor drives.
No start-up initialization	Valid output within 40 µs of power application-eliminates boot-time delays in safety-critical systems requiring immediate isolation readiness.
High CMTI immunity	25 kV/µs common-mode transient rejection-prevents false triggering during fast dv/dt events in SiC inverter half-bridges.
Extended temperature range	Full 150 Mbps operation from –40 to +125 °C-enables deployment in under-hood automotive power modules and industrial PLC backplanes.

Applications

Industrial Motor Control	Isolated ADC Interface
Use Scenario: Isolating PWM gate signals and current-sense feedback in 3-phase inverter drives using SiC MOSFETs. IC Role / Device Role / Timing Role: Six-channel isolator providing independent, low-skew paths for three upper/lower gate drivers and two current-sense ADC clocks. Use Value: 0.5 ns channel-channel skew and 25 kV/µs CMTI prevent shoot-through and ensure accurate current reconstruction at 20 kHz switching frequency.	Use Scenario: Transmitting high-resolution analog-to-digital conversion results from isolated sensor front-ends to host MCU. IC Role / Device Role / Timing Role: Digital isolator conveying SPI clock, data, and frame sync signals across isolation barrier while maintaining timing alignment. Use Value: <9.5 ns propagation delay and <2.5 ns pulse width distortion preserve 16-bit ADC timing margins in precision energy metering applications.
Hybrid Electric Vehicle Inverters	Isolated Switch-Mode Power Supply
Use Scenario: Isolating control signals between vehicle battery management system (BMS) and traction inverter gate drivers. IC Role / Device Role / Timing Role: Six-channel isolator routing enable, fault, and PWM signals with reinforced 2500 VRMS isolation for ASIL-B compliance. Use Value: UL 1577 and VDE IEC 60747-5-2 certification supports functional safety requirements; 125 °C operation matches under-hood thermal profiles.	Use Scenario: Providing feedback path for isolated voltage regulation in flyback or forward converters with optocoupler replacement. IC Role / Device Role / Timing Role: High-speed digital isolator transmitting error amplifier output or PWM duty cycle information across isolation barrier. Use Value: 150 Mbps capability enables dynamic loop response adjustment; 2.7–5.5 V supply range simplifies biasing from auxiliary winding rectifiers.

Industrial Motor Control

Isolated ADC Interface

Use Scenario: Isolating PWM gate signals and current-sense feedback in 3-phase inverter drives using SiC MOSFETs.

IC Role / Device Role / Timing Role: Six-channel isolator providing independent, low-skew paths for three upper/lower gate drivers and two current-sense ADC clocks.

Use Value: 0.5 ns channel-channel skew and 25 kV/µs CMTI prevent shoot-through and ensure accurate current reconstruction at 20 kHz switching frequency.

Use Scenario: Transmitting high-resolution analog-to-digital conversion results from isolated sensor front-ends to host MCU.

IC Role / Device Role / Timing Role: Digital isolator conveying SPI clock, data, and frame sync signals across isolation barrier while maintaining timing alignment.

Use Value: <9.5 ns propagation delay and <2.5 ns pulse width distortion preserve 16-bit ADC timing margins in precision energy metering applications.

Hybrid Electric Vehicle Inverters

Isolated Switch-Mode Power Supply

Use Scenario: Isolating control signals between vehicle battery management system (BMS) and traction inverter gate drivers.

IC Role / Device Role / Timing Role: Six-channel isolator routing enable, fault, and PWM signals with reinforced 2500 VRMS isolation for ASIL-B compliance.

Use Value: UL 1577 and VDE IEC 60747-5-2 certification supports functional safety requirements; 125 °C operation matches under-hood thermal profiles.

Use Scenario: Providing feedback path for isolated voltage regulation in flyback or forward converters with optocoupler replacement.

IC Role / Device Role / Timing Role: High-speed digital isolator transmitting error amplifier output or PWM duty cycle information across isolation barrier.

Use Value: 150 Mbps capability enables dynamic loop response adjustment; 2.7–5.5 V supply range simplifies biasing from auxiliary winding rectifiers.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM6403ARWZ	Four-channel, integrated isolated DC-DC converter; 50 Mbps max data rate; 2500 VRMS isolation; SOIC-16 wide-body package.	Lacks two channels and 150 Mbps capability; suitable only where on-board isolated power is required and channel count is sufficient.	Select when isolated power rail generation is needed alongside signal isolation, and 50 Mbps bandwidth suffices for control loop speed.
ISO6763	Six-channel, 100 Mbps max data rate; 5000 VRMS isolation; SOIC-16 wide-body; higher power consumption (~25 mA @ 100 Mbps).	Higher isolation rating but lower speed and greater power draw; wider package increases PCB area vs. SI8463AB-B-IS1's narrow-body footprint.	Choose when 5000 VRMS working voltage is mandated by end-equipment safety standards, and 100 Mbps meets system timing needs.

Compared with ADUM6403ARWZ and ISO6763, SI8463AB-B-IS1 offers the highest data rate (150 Mbps) and lowest channel-channel skew (0.5 ns) in a space-constrained narrow-body SOIC, making it optimal for high-fidelity, multi-channel timing-critical isolation where board area and jitter are design constraints.

Availability

SI8463AB-B-IS1 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 2500 VRMS isolation performance.

Supply support for SI8463AB-B-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 for high-reliability applications.

The Si84xx family was designed specifically for high-speed, low-power digital isolation in demanding industrial, automotive, and computing environments-replacing optocouplers and discrete transformer-based solutions with monolithic CMOS capacitive isolation.

FAQ

What is the maximum operating temperature for SI8463AB-B-IS1 at full 150 Mbps data rate?

The SI8463AB-B-IS1 supports full 150 Mbps operation across –40 to +125 °C ambient temperature with VDD = 2.7–5.5 V and 15 pF load. This specification is validated per Table 3 and Table 4 in the Skyworks Rev. 1.6 datasheet, confirming stable timing and power performance over the full industrial temperature range without derating.

Does SI8463AB-B-IS1 require external bypass capacitors, and if so, what values are recommended?

Yes, SI8463AB-B-IS1 requires 0.1 µF ceramic bypass capacitors placed as close as possible to each VDD pin (pins 13 and 16) and connected to their respective ground pins (14 and 15). This is explicitly stated in the "Description" section of the datasheet and verified in layout recommendations on page 22.

Is SI8463AB-B-IS1 pin-compatible with other members of the Si846x family, such as SI8462AB-B-IS1?

No, SI8463AB-B-IS1 is not pin-compatible with SI8462AB-B-IS1 or other Si846x variants. While all share the same 16-pin narrow-body SOIC package and pin numbering, channel configuration (input/output assignment) differs across the family-SI8463AB-B-IS1 has all six channels configured as unidirectional input-to-output, whereas SI8462AB-B-IS1 uses a different channel direction mapping.

What safety certifications apply to SI8463AB-B-IS1, and what working voltages do they support?

SI8463AB-B-IS1 is certified to UL 1577 (2500 VRMS, 1 min), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2 (560 Vpeak basic insulation). These certifications support up to 300 VRMS reinforced working voltage per CSA and 560 Vpeak per VDE, as detailed in Table 6 of the datasheet.

Can SI8463AB-B-IS1 operate with mismatched supply voltages, such as 3.3 V on VDD1 and 5 V on VDD2?

Yes, SI8463AB-B-IS1 supports independent supply voltages from 2.70–5.5 V on each side. The datasheet specifies VDD1 and VDD2 as separate rails with no requirement for matching-enabling level translation between 3.3 V controllers and 5 V analog subsystems without external level shifters.

SI8463AB-B-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:: 3/3

Channel Type:: Unidirectional

Voltage - Isolation:: 2500Vrms

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

SI8463AB-B-IS1 FAQ

1.How can I place an order for SI8463AB-B-IS1 through Aetrix?

Please submit a Request for Quotation (RFQ) for SI8463AB-B-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 SI8463AB-B-IS1 reliable?

The price and inventory of SI8463AB-B-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8463AB-B-IS1 is usually 5 days.

3.What payment methods are accepted for SI8463AB-B-IS1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8463AB-B-IS1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI8463AB-B-IS1?

SI8463AB-B-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI8463AB-B-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 SI8463AB-B-IS1?

For technical support, including SI8463AB-B-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8463AB-B-IS1 requirements.

6.How does Aetrix verify that SI8463AB-B-IS1 is sourced from the original manufacturer or authorized distributors?

All SI8463AB-B-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 SI8463AB-B-IS1 meets industry standards.

7.What is the process for return or replacement of SI8463AB-B-IS1?

All SI8463AB-B-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8463AB-B-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 SI8463AB-B-IS1 part is unused and in its original packaging.

Return procedure for SI8463AB-B-IS1:

1.Submit a request within 90 days.

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

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