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Home > Products > Isolators > Digital Isolators

Skyworks Solutions Inc. SI86S620EE-IS4

Name: SI86S620EE-IS4
Brand: Skyworks Solutions Inc.
SKU: SI86S620EE-IS4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI86S620EE-IS4

Manufacturer:: Skyworks Solutions Inc.

Category:: Digital Isolators

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

Datasheet:: SI86S620EE-IS4.pdf

Description:: 6.0 KVRMS ISOLATOR, 2 UNIDIRECTI

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI86S620EE-IS4 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 and industrial 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 isolated ADC interfaces where noise immunity and safety-critical timing integrity are required.

For engineers reviewing the SI86S620EE-IS4 datasheet, SI86S620EE-IS4 pinout, SI86S620EE-IS4 application, or SI86S620EE-IS4 equivalent, key selection criteria include its 10 ns typical propagation delay, 100 kV/µs CMTI, 2-channel unidirectional configuration, fail-safe default-low ordering option, and SSO-8 package with 8.0 mm creepage/clearance - all critical for high-reliability isolated power and communication subsystems.

Technical Context

The SI86S620EE-IS4 implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust operation without optical or magnetic coupling limitations. Its architecture delivers precise timing (±4.5 ns pulse width distortion) and supports independent UVLO and reset monitoring on both sides (VDD1/VDD2), with RSTB thresholds at ~1.7 V.

It integrates input deglitch filters (36 ns), 50 Ω nominal output impedance, and failsafe logic that forces outputs low when Side A is unpowered but Side B remains active - a behavior confirmed for the "EE" ordering variant per Table 2 and Figure 4. The device meets IEC 60747-17 reinforced insulation requirements with VIOWM = 1500 VRMS (SSO-8).

Key Specifications

Parameter	Value and Actual Design Meaning
Data rate	150 Mbps - supports high-speed serial links (e.g., SPI, RS-485 isolated transceivers) without timing bottlenecks.
Propagation delay	5–13.5 ns (typ. 9 ns) - enables sub-10 ns timing-critical feedback loops in motor control and power inverters.
Common-mode transient immunity	100 kV/µs - ensures reliable operation in noisy environments like traction inverters and onboard chargers.
Isolation rating	6000 VRMS (1 min) - certified to UL 1577, VDE 60747-17, CSA 62368-1 for reinforced insulation in medical and EV systems.
Supply voltage range	2.25–5.5 V - allows direct interface with 3.3 V microcontrollers and 5 V legacy logic without level-shifting.
Fail-safe mode	Default low output - guarantees safe state during input-side power loss, critical for BMS fault signaling and shutdown sequencing.
Operating temperature	–40 °C to +125 °C - qualified per AEC-Q100 Grade 0, suitable for under-hood automotive and industrial ambient conditions.

Pinout & Package

SI86S620EE-IS4 uses an SSO-8 (wide-body SOIC-8) package with 8.0 mm creepage and clearance, optimized for 6000 VRMS isolation. Pin 1 is VDD1; pins 2–3 are Side A inputs (A1, A2); pin 4 is GND1; pins 5–6 are Side B outputs (B1, B2); pin 7 is GND2; pin 8 is VDD2. No NC pins - all eight pins are functional and electrically assigned.

Pin/Terminal	Circuit Role	Design Meaning
VDD1	Side A power supply	Provides 2.25–5.5 V bias for input-side circuitry; must be decoupled with 0.1 µF + 10 µF capacitors.
A1, A2	Side A digital inputs	Dual unidirectional channels accepting CMOS/Schmitt-trigger logic; support deglitch filtering (36 ns).
GND1	Side A ground reference	Return path for VDD1; must be isolated from GND2 by ≥8.0 mm PCB spacing per safety standards.
B1, B2	Side B digital outputs	Fail-safe default-low outputs drive 50 Ω loads; compatible with 3.3 V/5 V logic families.
GND2	Side B ground reference	Return path for VDD2; forms isolated secondary domain for MCU or ADC side.
VDD2	Side B power supply	Independent 2.25–5.5 V rail for output-side logic; enables level translation between domains.

Key Features

Feature	Design Value
RF-based isolation architecture	Eliminates startup initialization delay (<300 µs tSTART) and avoids LED aging or transformer saturation issues found in opto/magnetic isolators.
Selectably fail-safe output	"EE" suffix denotes default-low behavior: outputs go low when VDD1 is unpowered but VDD2 remains active - prevents undefined states in safety-critical shutdown paths.
Input deglitch filter	36 ns pulse rejection removes EMI-induced glitches from noisy motor control or switching supply environments without affecting valid signal edges.
High CMTI & low jitter	100 kV/µs common-mode immunity and ≤350 ps peak eye diagram jitter ensure data integrity in high-dV/dt applications like SiC/GaN gate drivers.
AEC-Q100 Grade 0 qualification	Validated for –40 °C to +125 °C operation with full PPAP documentation support - meets automotive OEM requirements for onboard chargers and BMS.

Applications

Battery Management System (BMS)	Isolated ADC Interface
Use Scenario: Monitoring cell voltages and temperatures in high-voltage EV battery packs with >400 V DC bus. IC Role / Device Role / Timing Role: Isolates analog front-end ADC SPI clock/data lines from MCU domain while maintaining <10 ns timing alignment for synchronized sampling. Use Value: Prevents ground loop currents and high-voltage transients from corrupting measurement data or damaging the host controller.	Use Scenario: Digitizing current/voltage sensor outputs in isolated switch-mode power supplies. IC Role / Device Role / Timing Role: Transfers ADC conversion results across isolation barrier with 150 Mbps throughput and <4.5 ns pulse width distortion. Use Value: Enables real-time closed-loop control of power converters without latency-induced instability or resolution loss.
Traction Inverter Control	Industrial PLC I/O Module
Use Scenario: Transmitting PWM gate signals from controller to SiC MOSFET half-bridge drivers in electric vehicle drivetrains. IC Role / Device Role / Timing Role: Dual-channel isolator delivering matched propagation delays (tPSK ≤ 3 ns) to preserve dead-time integrity between high/low-side drivers. Use Value: Eliminates shoot-through risk caused by channel skew or CMTI-induced false triggering during high-dV/dt switching events.	Use Scenario: Isolating digital input/output signals between field-side sensors/actuators and PLC backplane in factory automation. IC Role / Device Role / Timing Role: Provides reinforced 6000 VRMS isolation for 24 V DC I/O channels compliant with IEC 61000-4-5 surge immunity requirements. Use Value: Ensures system uptime by preventing transient coupling from industrial motors or solenoids from disrupting logic-level communication.

Battery Management System (BMS)

Isolated ADC Interface

Use Scenario: Monitoring cell voltages and temperatures in high-voltage EV battery packs with >400 V DC bus.

IC Role / Device Role / Timing Role: Isolates analog front-end ADC SPI clock/data lines from MCU domain while maintaining <10 ns timing alignment for synchronized sampling.

Use Value: Prevents ground loop currents and high-voltage transients from corrupting measurement data or damaging the host controller.

Use Scenario: Digitizing current/voltage sensor outputs in isolated switch-mode power supplies.

IC Role / Device Role / Timing Role: Transfers ADC conversion results across isolation barrier with 150 Mbps throughput and <4.5 ns pulse width distortion.

Use Value: Enables real-time closed-loop control of power converters without latency-induced instability or resolution loss.

Traction Inverter Control

Industrial PLC I/O Module

Use Scenario: Transmitting PWM gate signals from controller to SiC MOSFET half-bridge drivers in electric vehicle drivetrains.

IC Role / Device Role / Timing Role: Dual-channel isolator delivering matched propagation delays (tPSK ≤ 3 ns) to preserve dead-time integrity between high/low-side drivers.

Use Value: Eliminates shoot-through risk caused by channel skew or CMTI-induced false triggering during high-dV/dt switching events.

Use Scenario: Isolating digital input/output signals between field-side sensors/actuators and PLC backplane in factory automation.

IC Role / Device Role / Timing Role: Provides reinforced 6000 VRMS isolation for 24 V DC I/O channels compliant with IEC 61000-4-5 surge immunity requirements.

Use Value: Ensures system uptime by preventing transient coupling from industrial motors or solenoids from disrupting logic-level communication.

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
ADUM220N0BRZ-RL7	5000 VRMS isolation, 150 Mbps, default-high fail-safe, SOIC-8 (3.9 mm creepage)	Lacks AEC-Q100 qualification and 6000 VRMS rating; lower CMTI (75 kV/µs)	Acceptable for non-automotive industrial use where 6 kVRMS and automotive qualification are not mandated.
ISO7721DWR	5000 VRMS, 100 Mbps, default-high, SOIC-8 (4.1 mm creepage), no deglitch filter	Lower speed and no input filtering; TI's ISO7721DWR does not support 150 Mbps or 36 ns glitch rejection	Suitable for cost-sensitive general-purpose isolation where 100 Mbps suffices and noise environment is benign.

Compared with ADUM220N0BRZ-RL7 and ISO7721DWR, SI86S620EE-IS4 provides higher isolation voltage (6000 vs. 5000 VRMS), automotive qualification, integrated 36 ns input filtering, and guaranteed default-low fail-safe behavior - making it uniquely suited for safety-critical EV and medical applications requiring reinforced insulation and deterministic power-loss response.

Availability

SI86S620EE-IS4 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, isolated ADC interfaces, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for SI86S620EE-IS4 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 leader in high-performance analog semiconductors, specializing in RF, timing, and isolation solutions for wireless, automotive, and industrial markets.

The Si86S6xx family was designed specifically for high-reliability, high-speed digital isolation in automotive and industrial applications - emphasizing AEC-Q100 compliance, reinforced safety certification, and RF-based architecture for superior noise immunity and timing precision.

FAQ

What is the isolation voltage rating of SI86S620EE-IS4 and which safety standards does it meet?

The SI86S620EE-IS4 is rated for 6000 VRMS isolation (1 minute) and meets UL 1577, VDE 60747-17, CSA 62368-1, and GB4943.1 safety standards. Its SSO-8 package achieves 8.0 mm creepage and clearance, supporting reinforced insulation for medical (60601-1) and industrial (62368-1) end-equipment certifications. SI86S620EE-IS4 is validated for VIOWM = 1500 VRMS per IEC 60747-17.

Does SI86S620EE-IS4 require external startup initialization or configuration?

No, SI86S620EE-IS4 requires no startup initialization or configuration. Its RF-based architecture enables immediate operation after power-up, with a guaranteed start-up time of ≤300 µs. Outputs follow inputs once VDD1 and VDD2 exceed their respective UVLO thresholds (2.18 V typ.), and internal reset circuitry reloads device configuration automatically if supply dips below RSTB+ (~1.7 V). SI86S620EE-IS4 is fully functional without firmware or external programming.

What does the "EE" suffix in SI86S620EE-IS4 indicate, and how does it affect system behavior?

"EE" denotes the default-low fail-safe option: when VDD1 is unpowered but VDD2 remains active, outputs B1 and B2 are actively driven low. This behavior is hard-coded per ordering option and verified in Table 2 and Figure 4 of the datasheet. SI86S620EE-IS4 ensures predictable, safe shutdown states in BMS or motor control systems where loss of input-side power must trigger controlled deactivation.

Can SI86S620EE-IS4 operate with mixed supply voltages (e.g., 3.3 V on Side A and 5 V on Side B)?

Yes, SI86S620EE-IS4 supports independent 2.25–5.5 V supplies on VDD1 and VDD2, enabling true level translation. It operates reliably with 3.3 V on Side A and 5 V on Side B (or vice versa), maintaining 150 Mbps data rate and 10 ns propagation delay. Input thresholds scale with VDDx (VIH = 0.7×VDDx), and outputs drive full rail-swing logic levels - confirmed in Tables 4–7 for 2.5 V, 3.3 V, and 5.0 V combinations. SI86S620EE-IS4 eliminates need for external level shifters.

How does the 36 ns input deglitch filter in SI86S620EE-IS4 improve system reliability?

The 36 ns deglitch filter rejects noise pulses shorter than 36 ns - common in motor drives, switching supplies, and relay-controlled circuits - preventing false triggering of downstream logic. Valid signals pass with only 36 ns added delay, preserving timing margins. This feature is factory-enabled for SI86S620EE-IS4 (per Section 3.4.1) and directly improves robustness in high-noise industrial and automotive environments. SI86S620EE-IS4 maintains signal integrity without requiring external RC filtering or firmware debouncing.

SI86S620EE-IS4 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):: 100kV/µs

Data Rate:: 150Mbps

Propagation Delay tpLH / tpHL (Max):: 13.5ns, 13.5ns

Pulse Width Distortion (Max):: 2.5ns

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

Voltage - Supply:: 2.25V ~ 5.5V

Grade:: -

Qualification:: -

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SSO

SI86S620EE-IS4 FAQ

1.How can I place an order for SI86S620EE-IS4 through Aetrix?

Please submit a Request for Quotation (RFQ) for SI86S620EE-IS4 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 SI86S620EE-IS4 reliable?

The price and inventory of SI86S620EE-IS4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S620EE-IS4 is usually 5 days.

3.What payment methods are accepted for SI86S620EE-IS4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S620EE-IS4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI86S620EE-IS4?

SI86S620EE-IS4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI86S620EE-IS4 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 SI86S620EE-IS4?

For technical support, including SI86S620EE-IS4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S620EE-IS4 requirements.

6.How does Aetrix verify that SI86S620EE-IS4 is sourced from the original manufacturer or authorized distributors?

All SI86S620EE-IS4 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 SI86S620EE-IS4 meets industry standards.

7.What is the process for return or replacement of SI86S620EE-IS4?

All SI86S620EE-IS4 units undergo pre-shipment inspection (PSI). If there is an issue with SI86S620EE-IS4, 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 SI86S620EE-IS4 part is unused and in its original packaging.

Return procedure for SI86S620EE-IS4:

1.Submit a request within 90 days.

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

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