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Skyworks Solutions Inc. SI86S620HE-IS4
- Part No.:
- SI86S620HE-IS4
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86S620HE-IS4.pdf
- Description:
- 6.0 KVRMS ISOLATOR, 2 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:2,462
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Product details
Overview
SI86S620HE-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 systems. It features Schmitt-trigger 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-IS4 datasheet, SI86S620HE-IS4 pinout, SI86S620HE-IS4 application, or SI86S620HE-IS4 equivalent, key selection criteria include its 10 ns typical propagation delay, 100 kV/µs CMTI, dual-channel configuration with side-A/side-B independent supplies, and SSO-8 package with 8.0 mm creepage/clearance - all validated for automotive-grade operation at –40 to +125 °C.
Technical Context
The SI86S620HE-IS4 implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture includes independent UVLO and reset circuits per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and UVLO hysteresis of 105–160 mV.
It supports fail-safe operation via ordering option (HE = default low), integrates input deglitch filters (36 ns), and delivers precise timing: 5–13.5 ns propagation delay (tPHL/tPLH), ≤4.5 ns pulse width distortion, and <3 ns channel-to-channel skew - all specified over full temperature and voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | 150 Mbps - supports high-speed CAN FD, SPI, and isolated ADC/DAC interfaces without protocol overhead. |
| Propagation delay | 5–13.5 ns (typ. 9 ns) - enables tight timing control in motor gate drivers and real-time feedback loops. |
| Common-mode transient immunity | 100 kV/µs - maintains signal integrity in noisy 600 V+ power inverter environments. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements per UL 1577, VDE 60747-17, and CSA 62368-1. |
| Supply voltage range | 2.25–5.5 V - allows interoperability with 3.3 V microcontrollers and 5 V legacy logic without level shifters. |
| Operating temperature | –40 to +125 °C - qualified for under-hood automotive applications including onboard chargers and BMS. |
| Fail-safe mode | Default low output - ensures safe shutdown state during VDD1 loss in safety-critical control paths. |
Pinout & Package
SI86S620HE-IS4 is housed in an SSO-8 (wide-body SOIC-8) package with 8.0 mm creepage and clearance, optimized for 6000 VRMS isolation. Pin 1 (VDD1) to Pin 8 (VDD2) straddle the internal isolation barrier, with Side A (pins 1–4) and Side B (pins 5–8) electrically separated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Side A power supply | Supplies isolated input-side logic; must be bypassed with 0.1 µF + 10 µF capacitors near pin. |
| GND1 | Side A ground | Reference for Side A I/O; requires separate PCB ground plane from GND2 to maintain isolation integrity. |
| A1, A2 | Side A digital inputs | Dual-channel CMOS/Schmitt-trigger inputs; accept 2.25–5.5 V logic; support deglitch filtering (36 ns). |
| NC | No connect | Pin 3 is unconnected - must remain floating; no trace or pad should attach to this terminal. |
| GND2 | Side B ground | Reference for Side B outputs; physically isolated from GND1; defines safety barrier boundary. |
| B1, B2 | Side B digital outputs | Fail-safe default-low outputs; 50 Ω nominal impedance; require controlled-impedance routing for >50 Mbps signals. |
| VDD2 | Side B power supply | Supplies isolated output-side logic; independent of VDD1 - enables level-shifting between domains. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates startup initialization delay and optocoupler aging; achieves stable 0.3 ms start-up time with internal 100 kΩ pulldown. |
| Selectably fail-safe output (HE) | Guarantees logic-low output when VDD1 is unpowered - critical for disabling gate drivers during MCU brownout. |
| Input deglitch filter (36 ns) | Rejects EMI-induced transients <36 ns wide, preventing false triggering in industrial motor control environments. |
| Independent UVLO and reset per side | Enables asymmetric power sequencing: Side A can reset while Side B remains active, supporting fault-tolerant designs. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use up to +125 °C ambient; includes PPAP documentation, IMDS/CAMDS compliance, and zero-defect manufacturing flow. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADCs and pack-level communication from high-voltage battery stacks (up to 1000 VDC). IC Role / Device Role / Timing Role: Dual-channel isolator bridges analog front-end and MCU domain, transmitting sampled voltage/current data with <10 ns timing skew. Use Value: Enables accurate SOC estimation by preserving signal fidelity across 6000 VRMS barrier while meeting ASIL-B diagnostic coverage requirements. |
Use Scenario: Transmitting PWM gate drive signals from inverter controller to IGBT/SiC half-bridge drivers in EV powertrain. IC Role / Device Role / Timing Role: Provides isolated, low-skew channel pair for complementary high-side/low-side gate control with fail-safe default-low behavior. Use Value: Prevents shoot-through during MCU reset by forcing both outputs low, eliminating need for external pull-down resistors. |
| Onboard Charger (OBC) | Industrial PLC I/O Module |
|
Use Scenario: Isolating AC grid sensing (voltage/current) and DC-link monitoring in bidirectional OBCs operating at 650 VDC. IC Role / Device Role / Timing Role: Transfers isolated status and fault signals between primary-side controller and secondary-side safety monitor. Use Value: Meets reinforced insulation requirements per IEC 62368-1 and supports 150 Mbps communication for fast fault reporting (<1 µs latency). |
Use Scenario: Providing channel-isolated digital input conditioning for 24 VDC field sensors in factory automation cabinets. IC Role / Device Role / Timing Role: Converts noisy industrial sensor signals into clean, glitch-free logic levels for PLC CPU with 100 kV/µs CMTI margin. Use Value: Reduces spurious interrupts and eliminates external RC filters, lowering BOM count and board space by 30% vs optocouplers. |
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 |
|---|---|---|---|
| ADUM220N1BRZ | 5000 VRMS isolation, 150 Mbps, default-high fail-safe, SOIC-8 (narrow body, 3.9 mm creepage) | Lacks AEC-Q100 qualification and automotive PPAP support; lower working voltage (849 VRMS) limits use in 800 V systems. | Prefer SI86S620HE-IS4 for automotive traction inverters requiring 6000 VRMS and default-low safety state. |
| ISO7721D | 5000 VRMS, 100 Mbps, default-high, SOIC-8 (narrow), no deglitch filter, 1000-year TDDB lifetime | Not AEC-Q100 qualified; lacks input deglitching and failsafe configurability; rated only to +105 °C. | Choose SI86S620HE-IS4 when operating above +105 °C or requiring 36 ns input filtering in noisy motor control environments. |
Compared with ADUM220N1BRZ and ISO7721D, SI86S620HE-IS4 uniquely combines 6000 VRMS reinforced isolation, AEC-Q100 Grade 1 qualification, default-low fail-safe behavior, and integrated 36 ns deglitch filtering - making it the only option qualified for safety-critical 800 V battery electric vehicle subsystems.
Availability
SI86S620HE-IS4 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply, automotive-grade traceability, and long-term lifecycle support.
Supply support for SI86S620HE-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 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 high-reliability automotive and industrial isolation, emphasizing AEC-Q100 compliance, reinforced safety certification, and RF-based noise immunity over legacy optocoupler architectures.
FAQ
What is the isolation voltage rating of the SI86S620HE-IS4?
The SI86S620HE-IS4 is rated for 6000 VRMS isolation per UL 1577 (1 minute), with reinforced insulation certified to VDE 60747-17 and CSA 62368-1. Its SSO-8 package provides 8.0 mm creepage and clearance, supporting 1500 VRMS working voltage in end equipment per IEC 60664-1.
Does the SI86S620HE-IS4 require external components for stable operation?
Yes - the SI86S620HE-IS4 requires 0.1 µF and 10 µF bypass capacitors on both VDD1-GND1 and VDD2-GND2 pairs, placed within 5 mm of the pins. Optional 50–300 Ω series resistors on I/O lines improve noise immunity in high-EMI environments, but are not mandatory for basic functionality.
How does the fail-safe mode function in the SI86S620HE-IS4?
The SI86S620HE-IS4 uses the "HE" suffix to denote default-low fail-safe behavior: when VDD1 is unpowered or below UVLO threshold (~2.05 V), outputs B1/B2 are actively driven low. This prevents unintended activation of downstream drivers during MCU power loss or brownout conditions.
What is the maximum data rate supported by the SI86S620HE-IS4?
The SI86S620HE-IS4 supports up to 150 Mbps data rate with guaranteed transmission of pulses ≥6.7 ns wide. This enables high-speed serial interfaces such as isolated SPI, RS-485 transceiver control, and real-time sensor data streaming in automotive and industrial applications.
Is the SI86S620HE-IS4 compatible with 3.3 V and 5 V logic systems?
Yes - the SI86S620HE-IS4 operates across 2.25–5.5 V on both sides independently, allowing direct interface with 3.3 V microcontrollers (VDD1) and 5 V gate drivers (VDD2). Input thresholds scale with VDDx (VIH = 0.7×VDDx, VIL = 0.3×VDDx), ensuring reliable logic recognition across both voltages.
SI86S620HE-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):
- 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:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSO
SI86S620HE-IS4 FAQ
1.How can I place an order for SI86S620HE-IS4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S620HE-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 SI86S620HE-IS4 reliable?
The price and inventory of SI86S620HE-IS4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S620HE-IS4 is usually 5 days.
3.What payment methods are accepted for SI86S620HE-IS4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S620HE-IS4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S620HE-IS4?
SI86S620HE-IS4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S620HE-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 SI86S620HE-IS4?
For technical support, including SI86S620HE-IS4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S620HE-IS4 requirements.
6.How does Aetrix verify that SI86S620HE-IS4 is sourced from the original manufacturer or authorized distributors?
All SI86S620HE-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 SI86S620HE-IS4 meets industry standards.
7.What is the process for return or replacement of SI86S620HE-IS4?
All SI86S620HE-IS4 units undergo pre-shipment inspection (PSI). If there is an issue with SI86S620HE-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 SI86S620HE-IS4 part is unused and in its original packaging.
Return procedure for SI86S620HE-IS4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S620HE-IS4 Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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