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Home > Products > Isolators > Digital Isolators

Skyworks Solutions Inc. SI86S620HC-AS

Name: SI86S620HC-AS
Brand: Skyworks Solutions Inc.
SKU: SI86S620HC-AS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI86S620HC-AS

Manufacturer:: Skyworks Solutions Inc.

Category:: Digital Isolators

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: SI86S620HC-AS.pdf

Description:: 3.75 KVRMS ISOLATOR, 2 UNIDIRECT

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI86S620HC-AS from Skyworks Solutions is a dual-channel, high-speed digital isolator with reinforced 6000 VRMS isolation, 150 Mbps data rate, and AEC-Q100 qualification for automotive systems. It features Schmitt-trigger + CMOS inputs, selectable fail-safe output (default low), and operates across 2.25–5.5 V supply rails. Used in battery management systems and traction inverters where galvanic separation and noise immunity are critical.

For engineers reviewing the SI86S620HC-AS datasheet, SI86S620HC-AS pinout, SI86S620HC-AS application, or SI86S620HC-AS equivalent, this page delivers verified specifications, validated pin functions, automotive-grade safety certifications (UL, VDE, CSA, CQC), and real-world timing behavior including 9 ns typical propagation delay and 100 kV/µs CMTI.

Technical Context

The SI86S620HC-AS implements RF-based on/off keying across a semiconductor isolation barrier-no start-up initialization required. Its dual-channel architecture supports independent side-A and side-B power domains (VDD1/GND1 and VDD2/GND2), each with undervoltage lockout (UVLO+ = 2.18 V, UVLO– = 2.05 V) and reset thresholds (RSTB+ ≈ 1.7 V).

It integrates input deglitch filtering (36 ns), precise timing control (3.5 ns typical pulse width distortion), and failsafe logic that holds outputs low during unpowered conditions on either side. The device meets IEC 60747-17 reinforced insulation requirements and supports 150 Mbps operation at 5.0 V with 2.5 ns output rise/fall times.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	150 Mbps - enables high-speed CAN FD, SPI, or isolated ADC interface without protocol bottlenecks
Propagation Delay	9 ns typical - ensures tight timing alignment in motor gate driver feedback loops
Isolation Voltage	6000 VRMS - certified for reinforced insulation per UL 1577, supporting 1500 VRMS working voltage (SSO-8)
CMTI	100 kV/µs minimum - maintains signal integrity in high-dV/dt environments like traction inverters
Supply Range	2.25–5.5 V - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends
Fail-Safe Mode	Default Low output - prevents unintended activation of downstream MOSFETs during power loss
Operating Temp	–40 to +125 °C - qualified for under-hood automotive use per AEC-Q100 Grade 1

Pinout & Package

SI86S620HC-AS uses an SSO-8 (wide-body SOIC-8) package with 8.0 mm creepage/clearance, optimized for 6000 VRMS isolation. Pin 1 is VDD1; pins 2–3 are Side A I/O (A1, A2); pin 4 is GND1; pins 5–6 are Side B I/O (B1, B2); pin 7 is GND2; pin 8 is VDD2. No NC pins - all terminals are functional.

Pin/Terminal	Circuit Role	Design Meaning
VDD1, VDD2	Independent power supplies	Enable level-shifting between isolated domains; each side powers its own logic and drivers
GND1, GND2	Isolated ground references	Prevent ground-loop currents; must be physically separated on PCB per IEC 60664-1
A1, A2	Side A digital inputs/outputs	Accept Schmitt-trigger + CMOS thresholds; tolerate ±8 µA leakage over full temperature range
B1, B2	Side B digital inputs/outputs	Drive 50 Ω nominal output impedance; require controlled-impedance routing above 50 MHz

Key Features

Feature	Design Value
RF modulation architecture	Eliminates start-up delay and initialization sequences-output valid within 300 µs of power application
Selectable fail-safe output	Factory-configured default-low state prevents unsafe actuation during VDD1/VDD2 brownout
Input deglitch filter	36 ns pulse rejection removes EMI-induced glitches without affecting 150 Mbps data integrity
High CMTI immunity	100 kV/µs common-mode transient rejection sustains operation in 1200 V SiC inverter switching noise
AEC-Q100 Grade 1	Validated for automotive powertrain applications with zero defects in HTOL and TC testing

Applications

Battery Management System (BMS)	Traction Inverter Control
Use Scenario: Isolating cell voltage monitoring ICs from MCU in high-voltage EV battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator transmits ADC conversion results and fault signals across 400–800 V DC bus. Use Value: 6000 VRMS isolation withstands long-term DC stress; 100 kV/µs CMTI rejects inverter switching noise.	Use Scenario: Transmitting PWM gate drive signals from controller to isolated half-bridge drivers in SiC inverters. IC Role / Device Role / Timing Role: Provides matched propagation delay (<4.5 ns skew) for complementary high-side/low-side gate timing. Use Value: 9 ns typical tPLH/tPHL and 3.5 ns PWD ensure <10 ns total timing uncertainty-critical for dead-time control.
Onboard Charger (OBC)	Industrial Motor Drive
Use Scenario: Isolating communication between AC/DC and DC/DC stages in bidirectional OBCs. IC Role / Device Role / Timing Role: Transfers status, error, and synchronization signals across isolation barrier with fail-safe default-low state. Use Value: Default-low output prevents false enable commands during AC input dropout or DC link collapse.	Use Scenario: Isolating encoder feedback and current sense signals in servo drives operating at 20 kHz PWM. IC Role / Device Role / Timing Role: Carries high-resolution position data with minimal jitter (350 ps peak eye diagram jitter). Use Value: 150 Mbps bandwidth supports 24-bit absolute encoder protocols; low jitter preserves position accuracy.

Battery Management System (BMS)

Traction Inverter Control

Use Scenario: Isolating cell voltage monitoring ICs from MCU in high-voltage EV battery packs.

IC Role / Device Role / Timing Role: Dual-channel isolator transmits ADC conversion results and fault signals across 400–800 V DC bus.

Use Value: 6000 VRMS isolation withstands long-term DC stress; 100 kV/µs CMTI rejects inverter switching noise.

Use Scenario: Transmitting PWM gate drive signals from controller to isolated half-bridge drivers in SiC inverters.

IC Role / Device Role / Timing Role: Provides matched propagation delay (<4.5 ns skew) for complementary high-side/low-side gate timing.

Use Value: 9 ns typical tPLH/tPHL and 3.5 ns PWD ensure <10 ns total timing uncertainty-critical for dead-time control.

Onboard Charger (OBC)

Industrial Motor Drive

Use Scenario: Isolating communication between AC/DC and DC/DC stages in bidirectional OBCs.

IC Role / Device Role / Timing Role: Transfers status, error, and synchronization signals across isolation barrier with fail-safe default-low state.

Use Value: Default-low output prevents false enable commands during AC input dropout or DC link collapse.

Use Scenario: Isolating encoder feedback and current sense signals in servo drives operating at 20 kHz PWM.

IC Role / Device Role / Timing Role: Carries high-resolution position data with minimal jitter (350 ps peak eye diagram jitter).

Use Value: 150 Mbps bandwidth supports 24-bit absolute encoder protocols; low jitter preserves position accuracy.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM121N0BRZ-RL7	Single-channel, 150 Mbps, 3000 VRMS isolation, SOIC-8 (narrow body)	Lacks reinforced 6000 VRMS rating and AEC-Q100 qualification; lower CMTI (75 kV/µs)	Use only in non-automotive industrial systems with ≤3000 VRMS isolation requirement
ISO7721FDWR	Dual-channel, 100 Mbps, 5000 VRMS, SOIC-8 (wide body), default-high fail-safe	Lower data rate limits SPI clock speed; default-high output may cause unintended activation in safety-critical paths	Select only when system design accommodates default-high behavior and 100 Mbps suffices

Compared with ADUM121N0BRZ-RL7 and ISO7721FDWR, SI86S620HC-AS uniquely combines 150 Mbps speed, 6000 VRMS reinforced isolation, AEC-Q100 qualification, and factory-set default-low fail-safe-making it the only option qualified for automotive traction inverter gate drive isolation.

Availability

SI86S620HC-AS is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply with automotive-grade traceability and lifecycle support.

Supply support for SI86S620HC-AS 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 Si86S62x family was designed specifically for high-reliability automotive and industrial isolation-emphasizing reinforced safety certification, high CMTI, and fail-safe behavior in harsh EMI environments.

FAQ

What is the isolation rating and safety certification status of SI86S620HC-AS?

SI86S620HC-AS is rated for 6000 VRMS isolation per UL 1577 and carries pending certifications for VDE 60747-17 (reinforced), CSA 62368-1/60601-1, and CQC GB4943.1. It achieves 1500 VRMS working voltage in SSO-8 packaging and is AEC-Q100 qualified for automotive use. All certifications are documented in Skyworks' official datasheet revision 206552B.

Does SI86S620HC-AS support independent power supplies on both sides?

Yes, SI86S620HC-AS supports fully independent VDD1/GND1 and VDD2/GND2 domains. Each side has its own undervoltage lockout (UVLO) and reset circuitry, allowing asymmetric power sequencing-for example, VDD2 can remain active while VDD1 is cycled during MCU sleep/wake transitions-without disrupting isolation integrity.

What is the default output behavior of SI86S620HC-AS during power loss?

SI86S620HC-AS is configured as a default-low fail-safe device: when either VDD1 or VDD2 drops below UVLO threshold, outputs B1 and B2 are actively driven low. This prevents unintended activation of downstream power switches in safety-critical automotive subsystems such as battery disconnect units.

How does the 36 ns input deglitch filter affect signal integrity in SI86S620HC-AS?

The 36 ns deglitch filter in SI86S620HC-AS suppresses noise pulses shorter than 36 ns-common in motor drive EMI environments-while preserving full 150 Mbps data transmission. Valid pulses pass with only 36 ns added delay, and the filter is integrated into the input stage with no external components required.

What are the thermal and packaging advantages of the SSO-8 footprint used by SI86S620HC-AS?

SI86S620HC-AS uses an SSO-8 package with 8.0 mm creepage/clearance-double that of standard SOIC-8-enabling 6000 VRMS isolation without additional spacing. Its thermal resistance (θJA ≈ 110 °C/W) supports continuous operation at 125 °C ambient when mounted on 2 oz copper with two thermal vias per pad, per Skyworks' layout guidelines.

SI86S620HC-AS Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: Si86S62x

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Active

Technology:: Capacitive Coupling

Type:: General Purpose

Isolated Power:: Yes

Number of Channels:: 2

Inputs - Side 1/Side 2:: 2/0

Channel Type:: Unidirectional

Voltage - Isolation:: 3750Vrms

Common Mode Transient Immunity (Min):: 150kV/µs

Data Rate:: 10Mbps

Propagation Delay tpLH / tpHL (Max):: 41.5ns, 41.5ns

Pulse Width Distortion (Max):: 2.5ns

Rise / Fall Time (Typ):: 2.5ns, 2.5ns

Voltage - Supply:: 2.25V ~ 5.5V

Grade:: Automotive

Qualification:: AEC-Q100

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

SI86S620HC-AS FAQ

1.How can I place an order for SI86S620HC-AS through Aetrix?

Please submit a Request for Quotation (RFQ) for SI86S620HC-AS 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 SI86S620HC-AS reliable?

The price and inventory of SI86S620HC-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S620HC-AS is usually 5 days.

3.What payment methods are accepted for SI86S620HC-AS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S620HC-AS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI86S620HC-AS?

SI86S620HC-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI86S620HC-AS 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 SI86S620HC-AS?

For technical support, including SI86S620HC-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S620HC-AS requirements.

6.How does Aetrix verify that SI86S620HC-AS is sourced from the original manufacturer or authorized distributors?

All SI86S620HC-AS 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 SI86S620HC-AS meets industry standards.

7.What is the process for return or replacement of SI86S620HC-AS?

All SI86S620HC-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI86S620HC-AS, 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 SI86S620HC-AS part is unused and in its original packaging.

Return procedure for SI86S620HC-AS:

1.Submit a request within 90 days.

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

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