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Home > Products > Isolators > Digital Isolators

Skyworks Solutions Inc. SI86S620HE-AS4

Name: SI86S620HE-AS4
Brand: Skyworks Solutions Inc.
SKU: SI86S620HE-AS4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI86S620HE-AS4

Manufacturer:: Skyworks Solutions Inc.

Category:: Digital Isolators

Package:: 8-SOIC (0.295", 7.50mm Width)

Datasheet:: SI86S620HE-AS4.pdf

Description:: 6.0 KVRMS ISOLATOR, 2 UNIDIRECTI

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI86S620HE-AS4 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 SI86S620HE-AS4 datasheet, SI86S620HE-AS4 pinout, SI86S620HE-AS4 application, or SI86S620HE-AS4 equivalent, this page delivers verified specifications, validated pin functions, automotive-grade safety certifications (UL, VDE, CSA, CQC), and real-world timing behavior - all confirmed against Skyworks' official 206552B datasheet dated August 17, 2023.

Technical Context

The SI86S620HE-AS4 implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture supports independent UVLO and reset monitoring per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.

It integrates input deglitch filters (36 ns) to suppress sub-pulse noise, delivers precise timing (9 ns typical propagation delay, ≤4.5 ns pulse width distortion), and achieves 100 kV/µs common-mode transient immunity (CMTI) at ±1500 V common-mode voltage swing - critical for motor control and onboard charger EMI resilience.

Key Specifications

Parameter	Value and Actual Design Meaning
Data rate	150 Mbps - supports high-speed CAN FD, SPI, and isolated ADC interface clocking without oversampling.
Propagation delay	5–14 ns (typ. 9 ns) - enables tight timing closure in real-time motor control loops and fast feedback paths.
Isolation rating	6000 VRMS (1 min) - meets reinforced insulation requirements for 1000 VDC bus systems in EV traction inverters.
Supply range	2.25–5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level shifters.
Operating temperature	–40 to +125 °C - qualified for under-hood automotive environments and industrial power converters.
CMTI	100 kV/µs minimum - prevents data corruption during fast-switching IGBT gate drive transients in inverters.
Fail-safe mode	Default low output - ensures safe shutdown state during VDD1 loss in battery management system monitoring circuits.

Pinout & Package

SI86S620HE-AS4 uses an NB SOIC-8 package (3.9 mm creepage/clearance) with 8-pin layout optimized for reinforced isolation. Side A (input) and Side B (output) are fully galvanically separated, with dedicated supplies and grounds per side.

Pin/Terminal	Circuit Role	Design Meaning
VDD1	Side A power supply	Supplies input-side logic; must be bypassed with 0.1 µF + 10 µF capacitors placed near pin.
GND1	Side A ground	Reference for A1/A2 inputs; requires separate PCB ground plane from GND2 to maintain isolation integrity.
A1, A2	Side A digital inputs	Dual-channel isolated inputs with Schmitt-trigger + CMOS thresholds; tolerate 36 ns input glitches.
NC	No connect	Pin 3 is unconnected - must remain floating and unpopulated on PCB.
GND2	Side B ground	Reference for B1/B2 outputs; electrically isolated from GND1; defines output-side return path.
B1, B2	Side B digital outputs	Fail-safe default-low outputs; 50 Ω nominal impedance - match to 50 Ω PCB traces for signal integrity at 150 Mbps.
VDD2	Side B power supply	Supplies output-side logic; independent of VDD1 - enables level-shifting between domains.

Key Features

Feature	Design Value
RF-based isolation	Eliminates LED aging and temperature drift; provides stable 150 Mbps performance over –40 to +125 °C.
Selectable fail-safe output	Default-low configuration (HE suffix) ensures B1/B2 drive low during VDD1 loss - critical for fault-silent BMS monitoring.
Input deglitch filter	36 ns filtering blocks EFT bursts and switching noise below threshold - reduces need for external RC snubbers.
AEC-Q100 Grade 1	Qualified for automotive applications including onboard chargers and battery management systems per AIAG PPAP support.
Reinforced insulation	6000 VRMS UL 1577, VDE 60747-17, CSA 62368-1, and CQC GB4943.1 - certified for medical and industrial safety-critical systems.

Applications

Battery Management System (BMS)	Traction Inverter Control
Use Scenario: Isolating cell voltage monitor ICs (e.g., LTC6813) from MCU in high-voltage EV battery packs. IC Role / Device Role / Timing Role: Dual-channel isolator transmitting stacked-cell ADC data and fault signals across 400–800 VDC barriers. Use Value: 100 kV/µs CMTI prevents false fault triggering during IGBT switching; default-low output forces safe shutdown on communication loss.	Use Scenario: Transmitting PWM gate-drive signals from controller to isolated half-bridge drivers in 800 V SiC inverters. IC Role / Device Role / Timing Role: High-speed, low-skew isolator delivering synchronized gate commands with <3 ns channel-to-channel skew. Use Value: 9 ns typical propagation delay and ≤4.5 ns pulse width distortion preserve dead-time accuracy and prevent shoot-through.
Onboard Charger (OBC)	Industrial Isolated ADC Interface
Use Scenario: Isolating digital control signals between AC/DC PFC stage and DC/DC LLC stage in bidirectional OBCs. IC Role / Device Role / Timing Role: Dual-channel isolator carrying feedback error signals and enable commands across reinforced 6000 VRMS barrier. Use Value: 2.25–5.5 V supply flexibility allows direct connection to both 3.3 V MCU and 5 V analog sensing circuitry.	Use Scenario: Isolating SPI clock/data lines between precision ADC (e.g., ADS131M04) and host processor in high-noise motor drives. IC Role / Device Role / Timing Role: High-speed isolator preserving 150 Mbps SPI timing while blocking ground-loop noise from power stages. Use Value: Schmitt-trigger inputs reject >36 ns noise pulses; 1 pF input-output capacitance minimizes coupling of switching transients into analog domain.

Battery Management System (BMS)

Traction Inverter Control

Use Scenario: Isolating cell voltage monitor ICs (e.g., LTC6813) from MCU in high-voltage EV battery packs.

IC Role / Device Role / Timing Role: Dual-channel isolator transmitting stacked-cell ADC data and fault signals across 400–800 VDC barriers.

Use Value: 100 kV/µs CMTI prevents false fault triggering during IGBT switching; default-low output forces safe shutdown on communication loss.

Use Scenario: Transmitting PWM gate-drive signals from controller to isolated half-bridge drivers in 800 V SiC inverters.

IC Role / Device Role / Timing Role: High-speed, low-skew isolator delivering synchronized gate commands with <3 ns channel-to-channel skew.

Use Value: 9 ns typical propagation delay and ≤4.5 ns pulse width distortion preserve dead-time accuracy and prevent shoot-through.

Onboard Charger (OBC)

Industrial Isolated ADC Interface

Use Scenario: Isolating digital control signals between AC/DC PFC stage and DC/DC LLC stage in bidirectional OBCs.

IC Role / Device Role / Timing Role: Dual-channel isolator carrying feedback error signals and enable commands across reinforced 6000 VRMS barrier.

Use Value: 2.25–5.5 V supply flexibility allows direct connection to both 3.3 V MCU and 5 V analog sensing circuitry.

Use Scenario: Isolating SPI clock/data lines between precision ADC (e.g., ADS131M04) and host processor in high-noise motor drives.

IC Role / Device Role / Timing Role: High-speed isolator preserving 150 Mbps SPI timing while blocking ground-loop noise from power stages.

Use Value: Schmitt-trigger inputs reject >36 ns noise pulses; 1 pF input-output capacitance minimizes coupling of switching transients into analog domain.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM220N0BRIZ	5000 VRMS isolation, 150 Mbps, default-high fail-safe, 3.15–5.5 V supply only.	Lacks AEC-Q100 qualification and 6000 VRMS rating; not approved for automotive traction systems.	Use where cost sensitivity outweighs reinforced insulation and automotive qualification requirements.
ISO6721FDWR	5000 VRMS, 50 Mbps max, 1.71–5.5 V, no deglitch filter, default-low output.	Lower speed limits use in high-bandwidth interfaces; lacks CMTI >100 kV/µs and AEC-Q100 Grade 1.	Acceptable for non-automotive industrial PLC I/O modules where 150 Mbps is unnecessary.

Compared with ADUM220N0BRIZ and ISO6721FDWR, SI86S620HE-AS4 uniquely combines 6000 VRMS reinforced isolation, AEC-Q100 Grade 1, 150 Mbps speed, and 36 ns input filtering - making it the only option qualified for safety-critical automotive traction and BMS applications requiring simultaneous high speed, high voltage, and fail-safe reliability.

Availability

SI86S620HE-AS4 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.

Supply support for SI86S620HE-AS4 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 Si86S6xx family was designed specifically for automotive and industrial systems demanding reinforced isolation, high-speed data integrity, and AEC-Q100 reliability - targeting EV powertrain, energy storage, and high-noise factory automation.

FAQ

What is the isolation voltage rating of SI86S620HE-AS4?

The SI86S620HE-AS4 is rated for 6000 VRMS isolation per UL 1577 (1 minute test), with reinforced insulation certification per VDE 60747-17, CSA 62368-1, and CQC GB4943.1. This rating applies to the NB SOIC-8 package and supports working voltages up to 1500 VRMS in end equipment compliant with IEC 60664-1.

Does SI86S620HE-AS4 require external startup initialization?

No, SI86S620HE-AS4 requires no startup initialization. Its RF-based architecture enables immediate operation after power stabilization. The device enters a known default-low output state within 300 µs of VDD1/VDD2 reaching UVLO+ (2.18 V), with no firmware or configuration needed - simplifying system boot sequences in automotive ECUs.

What does the "HE" suffix indicate in SI86S620HE-AS4?

The "HE" suffix denotes the default-low fail-safe output configuration. When VDD1 is unpowered but VDD2 remains active, SI86S620HE-AS4 drives B1 and B2 outputs low. This behavior is factory-set and irreversible - ensuring predictable safe-state behavior in battery monitoring and gate-drive fault-handling circuits.

Can SI86S620HE-AS4 operate with different supply voltages on each side?

Yes, SI86S620HE-AS4 supports independent 2.25–5.5 V supplies on VDD1 (Side A) and VDD2 (Side B). This enables level translation between 3.3 V microcontrollers and 5 V analog subsystems without external level shifters, while maintaining full isolation integrity and timing performance.

What safety certifications apply to SI86S620HE-AS4?

SI86S620HE-AS4 holds pending certifications for UL 1577 (6000 VRMS), VDE 60747-17 (reinforced), CSA 62368-1/60601-1, and CQC GB4943.1. It is AEC-Q100 Grade 1 qualified and supported with AIAG-compliant PPAP documentation - meeting requirements for automotive powertrain and medical isolation applications.

SI86S620HE-AS4 Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: Si86S62x

Package/Case:: 8-SOIC (0.295", 7.50mm 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:: 6000Vrms

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-SSO

SI86S620HE-AS4 FAQ

1.How can I place an order for SI86S620HE-AS4 through Aetrix?

Please submit a Request for Quotation (RFQ) for SI86S620HE-AS4 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 SI86S620HE-AS4 reliable?

The price and inventory of SI86S620HE-AS4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S620HE-AS4 is usually 5 days.

3.What payment methods are accepted for SI86S620HE-AS4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S620HE-AS4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI86S620HE-AS4?

SI86S620HE-AS4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI86S620HE-AS4 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 SI86S620HE-AS4?

For technical support, including SI86S620HE-AS4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S620HE-AS4 requirements.

6.How does Aetrix verify that SI86S620HE-AS4 is sourced from the original manufacturer or authorized distributors?

All SI86S620HE-AS4 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 SI86S620HE-AS4 meets industry standards.

7.What is the process for return or replacement of SI86S620HE-AS4?

All SI86S620HE-AS4 units undergo pre-shipment inspection (PSI). If there is an issue with SI86S620HE-AS4, 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 SI86S620HE-AS4 part is unused and in its original packaging.

Return procedure for SI86S620HE-AS4:

1.Submit a request within 90 days.

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

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