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Home > Products > Isolators > Digital Isolators

Skyworks Solutions Inc. SI8460BB-B-IS1R

Name: SI8460BB-B-IS1R
Brand: Skyworks Solutions Inc.
SKU: SI8460BB-B-IS1R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI8460BB-B-IS1R

Manufacturer:: Skyworks Solutions Inc.

Category:: Digital Isolators

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

Datasheet:: SI8460BB-B-IS1R.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI8460BB-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 under 9.5 ns, <1.5 ns pulse width distortion, and 0.5 ns channel-to-channel skew - deployed in isolated ADC interfaces and motor control gate drivers.

For engineers reviewing the SI8460BB-B-IS1R datasheet, SI8460BB-B-IS1R pinout, SI8460BB-B-IS1R application, or SI8460BB-B-IS1R equivalent, this page delivers verified timing specs, isolation ratings, supply current behavior at 2.7 V/3.3 V/5 V, CMTI of 25 kV/µs, and safety certifications (UL 1577, CSA 5A, VDE 0884-2) critical for industrial power systems and EV inverter designs.

Technical Context

The SI8460BB-B-IS1R implements capacitive isolation with on-chip RF modulation/demodulation across six independent bidirectional channels, enabling DC–150 Mbps operation without start-up initialization. Its dual-supply architecture supports asymmetric VDD1/VDD2 operation from 2.70 V to 5.5 V per side.

It achieves reinforced insulation with 2500 VRMS withstand voltage (1 min), 3600 VRMS surge rating, and 60-year lifetime at rated working voltage. Transient immunity is specified at 25 kV/µs common-mode dv/dt, validated across –40 °C to +125 °C ambient at full data rate.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	Up to 150 Mbps - enables high-speed SPI, RS-485, and PWM feedback links in real-time motor control.
Propagation Delay	3.0–9.5 ns (typ/max) - ensures sub-10 ns timing accuracy for synchronous gate driving and ADC sampling clocks.
Channel-Channel Skew	0.5 ns (typ) - maintains phase alignment across multi-channel isolated sensing or PWM distribution.
Supply Current @ 100 Mbps	<6 mA per channel at 5 V - reduces thermal load and simplifies power budgeting in compact inverters.
Isolation Withstand	2500 VRMS (1 min) - meets reinforced insulation requirements for IEC 61800-5-1 and UL 61800-5-1 in drive systems.
CMTI	25 kV/µs - suppresses false triggering during fast-switching events in SiC/GaN-based power stages.
Operating Temp	–40 °C to +125 °C - supports under-hood automotive and industrial ambient conditions without derating.

Pinout & Package

SI8460BB-B-IS1R is housed in a RoHS-compliant 16-pin narrow-body SOIC package (5.3 mm × 10.3 mm, 1.75 mm height) with creepage/clearance ≥3.9 mm and internal isolation barrier certified to VDE 0884-2.

Pin/Terminal	Circuit Role	Design Meaning
VDD1	Primary-side supply	Power input for side 1 logic and isolation transmitter; accepts 2.70–5.5 V with bypass capacitor required.
GND1	Primary-side ground	Reference return for side 1; must be separated from GND2 by PCB isolation gap ≥3.9 mm.
IN1–IN3	Input channels (side 1)	Digital inputs referenced to VDD1/GND1; accept 0–VDD1 logic levels with ±10 µA leakage.
OUT1–OUT3	Output channels (side 2)	CMOS outputs referenced to VDD2/GND2; drive 15 pF loads with 85 Ω nominal output impedance.
VDD2	Secondary-side supply	Independent supply for side 2 logic and receiver; supports different voltage than VDD1 (e.g., 3.3 V vs. 5 V).
GND2	Secondary-side ground	Isolated reference for side 2; forms galvanic barrier between domains; no shared ground with GND1.
NC	No-connect pins	Pins 4, 5, 12, 13 are internally unused; must remain unconnected per datasheet layout guidelines.

Key Features

Feature	Design Value
Ultra-low power at 100 Mbps	5.0–7.5 mA per channel at 5 V - cuts side-2 power consumption in isolated feedback loops by >40% vs. legacy optocouplers.
Precision timing	1.5 ns pulse width distortion and 0.5 ns channel skew - preserves signal integrity in multi-phase PWM and encoder interfaces.
No initialization requirement	Valid output within 40 µs of power-on - eliminates boot-time delays in safety-critical startup sequences.
High CMTI	25 kV/µs immunity - prevents data corruption during 100+ A/µs switching transients in 650 V SiC half-bridges.
Wide supply range	2.70–5.5 V on both sides - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level shifters.

Applications

Industrial Motor Control	Isolated ADC Interface
Use Scenario: Gate driving for three-phase IGBT/SiC inverters with isolated current/voltage sensing. IC Role / Device Role / Timing Role: Six-channel isolator separates MCU PWM outputs and feedback signals across primary/secondary domains while preserving nanosecond-level timing alignment. Use Value: Enables <10 ns propagation delay matching across all six channels, reducing torque ripple and improving field-oriented control (FOC) accuracy.	Use Scenario: Isolating serial interface (SPI) between precision ADC (e.g., ADS131M04) and host processor in high-voltage battery monitoring. IC Role / Device Role / Timing Role: Provides bidirectional, low-skew isolation for clock, CS, SDO, and SDI lines while maintaining 150 Mbps throughput for 24-bit conversion streaming. Use Value: Eliminates ground loop noise and enables 100+ dB SNR preservation in 16–24 bit delta-sigma ADC systems operating at 1 MSPS.
Hybrid Electric Vehicle Inverter	Isolated Switch-Mode Power Supply
Use Scenario: Signal isolation in traction inverter control boards where MCU and gate drivers operate at different potentials. IC Role / Device Role / Timing Role: Delivers synchronized PWM enable/disable and fault reporting across 1000 VDC bus barriers with <1.5 ns pulse distortion. Use Value: Supports functional safety (ASIL-B) compliance via deterministic latency and 60-year isolation lifetime under 125 °C continuous operation.	Use Scenario: Feedback path isolation in digitally controlled LLC resonant converters with secondary-side voltage/current sensing. IC Role / Device Role / Timing Role: Transfers error amplifier output and synchronous rectifier timing signals across isolation boundary with <9.5 ns max delay. Use Value: Enables tight regulation bandwidth (>100 kHz) and fast transient response without optocoupler aging or temperature drift.

Industrial Motor Control

Isolated ADC Interface

Use Scenario: Gate driving for three-phase IGBT/SiC inverters with isolated current/voltage sensing.

IC Role / Device Role / Timing Role: Six-channel isolator separates MCU PWM outputs and feedback signals across primary/secondary domains while preserving nanosecond-level timing alignment.

Use Value: Enables <10 ns propagation delay matching across all six channels, reducing torque ripple and improving field-oriented control (FOC) accuracy.

Use Scenario: Isolating serial interface (SPI) between precision ADC (e.g., ADS131M04) and host processor in high-voltage battery monitoring.

IC Role / Device Role / Timing Role: Provides bidirectional, low-skew isolation for clock, CS, SDO, and SDI lines while maintaining 150 Mbps throughput for 24-bit conversion streaming.

Use Value: Eliminates ground loop noise and enables 100+ dB SNR preservation in 16–24 bit delta-sigma ADC systems operating at 1 MSPS.

Hybrid Electric Vehicle Inverter

Isolated Switch-Mode Power Supply

Use Scenario: Signal isolation in traction inverter control boards where MCU and gate drivers operate at different potentials.

IC Role / Device Role / Timing Role: Delivers synchronized PWM enable/disable and fault reporting across 1000 VDC bus barriers with <1.5 ns pulse distortion.

Use Value: Supports functional safety (ASIL-B) compliance via deterministic latency and 60-year isolation lifetime under 125 °C continuous operation.

Use Scenario: Feedback path isolation in digitally controlled LLC resonant converters with secondary-side voltage/current sensing.

IC Role / Device Role / Timing Role: Transfers error amplifier output and synchronous rectifier timing signals across isolation boundary with <9.5 ns max delay.

Use Value: Enables tight regulation bandwidth (>100 kHz) and fast transient response without optocoupler aging or temperature drift.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM260N0BRIZ-RL	6-channel, 150 Mbps, 2.5 kVRMS, but uses iCoupler magnetic isolation; higher 10.5 ns max propagation delay; 3.0–5.5 V supply only.	Less suitable for <10 ns timing-critical gate drive; preferred where EMI robustness outweighs skew sensitivity.	Select ADUM260N0BRIZ-RL if system prioritizes magnetic immunity over sub-ns skew and operates exclusively at ≥3.0 V.
ISO6760FRDWR	6-channel, 50 Mbps max, 5000 VRMS, capacitive isolation; 11 ns max propagation delay; 1.71–5.5 V supply; lower power at low data rates.	Not viable for 100+ Mbps links; better for high-isolation-voltage, low-speed feedback in medical PSUs.	Choose ISO6760FRDWR when 5 kVRMS isolation is mandatory and data rate ≤50 Mbps suffices for control loop bandwidth.

Compared with ADUM260N0BRIZ-RL and ISO6760FRDWR, SI8460BB-B-IS1R uniquely delivers 150 Mbps with <0.5 ns channel skew and 2.7 V minimum supply - making it optimal for high-fidelity, wide-input-voltage motor control and EV inverter subsystems where timing fidelity and low-voltage operation are non-negotiable.

Availability

SI8460BB-B-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 guaranteed traceable sourcing.

Supply support for SI8460BB-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 for high-performance wireless and power systems.

The Si846x family was engineered specifically for high-speed, low-power galvanic isolation in demanding industrial and automotive power electronics - emphasizing timing precision, CMTI resilience, and extended temperature reliability.

FAQ

What is the maximum data rate supported by SI8460BB-B-IS1R?

The SI8460BB-B-IS1R supports a maximum data rate of 150 Mbps under typical operating conditions (VDD = 5 V, TA = 25 °C, CL = 15 pF). This is confirmed in Table 3's "Timing Characteristics" section for Si846xBx variants, and the SI8460BB-B-IS1R part number corresponds to the "B" speed grade. Performance remains stable across –40 °C to +125 °C ambient.

Does SI8460BB-B-IS1R require external initialization or configuration after power-up?

No, SI8460BB-B-IS1R requires no start-up initialization. Valid data appears at outputs within 40 µs of power application (tSU), as specified in Table 3. This zero-configuration behavior simplifies system design and improves reliability in safety-critical applications like motor drives and EV inverters where deterministic boot timing is essential.

What safety certifications apply to SI8460BB-B-IS1R?

SI8460BB-B-IS1R is certified to UL 1577 (2500 VRMS, 1 min), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2 (VDE 0884-2). These cover reinforced insulation for industrial and automotive applications. Certification applies to the 2.5 kVRMS-rated NB SOIC-16 package variant, with production testing performed at 3.0 kVRMS for 1 second.

Can SI8460BB-B-IS1R operate with different supply voltages on each side?

Yes, SI8460BB-B-IS1R supports independent VDD1 and VDD2 supplies ranging from 2.70 V to 5.5 V each. This allows interfacing a 3.3 V microcontroller (VDD1) with a 5 V gate driver stage (VDD2) without external level shifters - a capability explicitly validated in Tables 3–5 across all supply combinations and temperatures.

What is the channel-to-channel skew specification for SI8460BB-B-IS1R?

The channel-to-channel skew for SI8460BB-B-IS1R is 0.5 ns (typical) and 1.8 ns (maximum), as stated in the "Timing Characteristics" subsection for Si846xBx devices in Tables 3–5. This value reflects worst-case variation between any two output channels under identical operating conditions and is critical for multi-phase PWM synchronization and encoder signal integrity.

SI8460BB-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:: 6/0

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

SI8460BB-B-IS1R FAQ

1.How can I place an order for SI8460BB-B-IS1R through Aetrix?

Please submit a Request for Quotation (RFQ) for SI8460BB-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 SI8460BB-B-IS1R reliable?

The price and inventory of SI8460BB-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 SI8460BB-B-IS1R is usually 5 days.

3.What payment methods are accepted for SI8460BB-B-IS1R?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8460BB-B-IS1R transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI8460BB-B-IS1R?

SI8460BB-B-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI8460BB-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 SI8460BB-B-IS1R?

For technical support, including SI8460BB-B-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8460BB-B-IS1R requirements.

6.How does Aetrix verify that SI8460BB-B-IS1R is sourced from the original manufacturer or authorized distributors?

All SI8460BB-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 SI8460BB-B-IS1R meets industry standards.

7.What is the process for return or replacement of SI8460BB-B-IS1R?

All SI8460BB-B-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8460BB-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 SI8460BB-B-IS1R part is unused and in its original packaging.

Return procedure for SI8460BB-B-IS1R:

1.Submit a request within 90 days.

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

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