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Skyworks Solutions Inc. SI86S641HE-IS2
- Part No.:
- SI86S641HE-IS2
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86S641HE-IS2.pdf
- Description:
- 6.0 KVRMS ISOLATOR, 4 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:1,148
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Product details
Overview
SI86S641HE-IS2 from Skyworks Solutions is a 4-channel reinforced digital isolator with bidirectional signal isolation across an integrated semiconductor barrier, supporting up to 150 Mbps data rate, 10 ns typical propagation delay, and 6000 VRMS isolation rating. It operates from 2.25–5.5 V on both sides and is qualified per AEC-Q100 for automotive battery management and traction inverter systems.
For engineers reviewing the SI86S641HE-IS2 datasheet, SI86S641HE-IS2 pinout, SI86S641HE-IS2 application, or SI86S641HE-IS2 equivalent, this page delivers verified specifications, validated pin functions, automotive-grade safety certifications (UL 1577, VDE 60747-17, CSA 62368-1), fail-safe output configuration, and real-world use context for isolated SPI, motor control feedback, and high-voltage power supply monitoring.
Technical Context
The SI86S641HE-IS2 implements RF-based on/off keying modulation across a monolithic silicon isolation barrier-eliminating startup initialization and enabling robust noise immunity (100 kV/µs CMTI) without optical degradation. Its architecture supports independent side-A and side-B undervoltage lockout (UVLO) with 2.18 V rising threshold and 131 mV hysteresis, plus reset detection at ~1.7 V.
All four channels feature Schmitt-trigger + CMOS input thresholds, tri-state outputs with enable control, and selectable fail-safe mode (default-high or default-low). The device includes input deglitch filtering (36 ns) and operates across –40 °C to +125 °C ambient temperature with reinforced insulation certified to IEC 60747-17.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed isolated communication in motor control gate drivers and fast ADC interfaces. |
| Propagation delay | 10 ns typical - enables precise timing alignment in closed-loop power converter feedback paths. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements for 1000 VAC industrial and 800 VDC automotive battery systems. |
| Supply voltage | 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 applications including onboard chargers and BMS. |
| CMTI | ≥100 kV/µs - ensures reliable operation in high-dV/dt environments like SiC/GaN inverter switching nodes. |
| Fail-safe mode | Selectable default-high or default-low output - prevents undefined states during power loss in safety-critical isolation barriers. |
Pinout & Package
SI86S641HE-IS2 is housed in a WB SOIC-16 package (wide-body, 10.3 mm creepage/clearance), supporting 6000 VRMS isolation. Pin assignments are validated per Figure 2 (Si86S64x/L4x) in Skyworks datasheet 206553B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply | Provides bias for channel inputs A1–A4; requires 0.1 µF + 10 µF local bypassing. |
| A1–A4 | Side A digital I/O | Four isolated input/output channels on primary side; Schmitt-trigger + CMOS thresholds. |
| EN1 | Side A output enable | Active-high control for tri-stating all A-side outputs; used for bus arbitration or power sequencing. |
| VDD2, GND2 | Side B power supply | Independent bias for B1–B4 outputs; enables galvanic separation between domains. |
| B1–B4 | Side B digital I/O | Four isolated output/input channels on secondary side; fully decoupled from Side A logic. |
| EN2 | Side B output enable | Active-high control for tri-stating all B-side outputs; supports asymmetric enable sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF-modulated architecture eliminates boot delay - outputs become valid within 0.3 ms of VDD stabilization. |
| Input deglitch filter | 36 ns pulse rejection - suppresses EMI-induced glitches in noisy motor drive or inverter gate driver environments. |
| Tri-state outputs | EN1/EN2 pins provide per-side bus contention control - essential for multi-master isolated SPI or shared serial buses. |
| Reinforced safety certification | UL 1577, VDE 60747-17, CSA 62368-1, CQC GB4943.1 - satisfies end-equipment compliance for medical, industrial, and automotive systems. |
| AEC-Q100 Grade 1 | Qualified for automotive applications up to +125 °C ambient - supports deployment in traction inverters and OBCs without derating. |
Applications
| Industrial Motor Control | Automotive Battery Management |
|---|---|
|
Use Scenario: Isolating gate driver signals and current-sense feedback in 3-phase PMSM inverters. IC Role / Device Role / Timing Role: Bidirectional isolation of PWM commands and fault reporting across 600–800 V DC bus. Use Value: 10 ns propagation delay preserves dead-time integrity; 100 kV/µs CMTI prevents false triggering during SiC switching transients. |
Use Scenario: Isolating cell voltage monitoring and pack-level communication in high-voltage EV battery stacks. IC Role / Device Role / Timing Role: Reinforced barrier between low-voltage MCU domain and 400–900 V battery domain. Use Value: 6000 VRMS rating supports >10 mm creepage requirements; AEC-Q100 qualification ensures long-term reliability at 125 °C. |
| Isolated Switch-Mode Power Supply | Medical Isolated Data Acquisition |
|
Use Scenario: Feedback loop isolation in 1–3 kW LLC resonant converters for server PSUs and telecom rectifiers. IC Role / Device Role / Timing Role: High-speed transmission of error amplifier output and synchronous rectifier control signals. Use Value: 150 Mbps capability enables real-time adaptive control; wide 2.25–5.5 V supply range simplifies auxiliary bias design. |
Use Scenario: Isolating ADC/DAC interfaces in patient-connected diagnostic equipment (ECG, EEG, infusion pumps). IC Role / Device Role / Timing Role: Reinforced barrier meeting IEC 60601-1 creepage/clearance and leakage current limits. Use Value: UL/VDE/CSA reinforced certification eliminates need for external safety capacitors; 125 °C rating supports sealed enclosure thermal design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM4401BRWZ | 4-channel, 100 Mbps, 5000 VRMS, SOIC-16, no deglitch filter | Lacks 36 ns input filtering and AEC-Q100 qualification; lower CMTI (75 kV/µs) | Preferred for cost-sensitive industrial designs where 150 Mbps and automotive qualification are not required. |
| ISO7741FDWR | 4-channel, 100 Mbps, 5000 VRMS, SOIC-16, 100 kV/µs CMTI, no fail-safe option | Does not support selectable default-high/low outputs; lacks VDE 60747-17 reinforced certification | Suitable for general-purpose isolation where fail-safe state control and full reinforced safety approvals are optional. |
Compared with ADUM4401BRWZ and ISO7741FDWR, SI86S641HE-IS2 delivers higher data rate, certified reinforced insulation, AEC-Q100 qualification, and configurable fail-safe behavior-making it the only choice for automotive traction inverters and medical devices requiring IEC 60601-1 compliance.
Availability
SI86S641HE-IS2 is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor drives, and isolated switch-mode power supplies requiring stable component supply with full safety certification traceability.
Supply support for SI86S641HE-IS2 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 high-reliability RF, analog, and mixed-signal components for wireless infrastructure, automotive, and industrial markets.
The Si86S6xx family was designed specifically for high-noise, high-voltage isolation applications demanding reinforced safety certification, ultra-fast timing, and automotive-grade robustness-targeting traction inverters, OBCs, and industrial PLCs.
FAQ
What is the isolation voltage rating of the SI86S641HE-IS2 and which safety standards does it meet?
The SI86S641HE-IS2 provides 6000 VRMS isolation for 1 minute per UL 1577 and is certified to VDE 60747-17 (reinforced), CSA 62368-1, and CQC GB4943.1. These approvals validate its use in safety-critical applications such as automotive battery management systems and medical equipment requiring reinforced insulation barriers. SI86S641HE-IS2 meets creepage/clearance requirements for 800 VDC working voltage systems.
Does the SI86S641HE-IS2 support fail-safe output configuration, and how is it implemented?
Yes, the SI86S641HE-IS2 offers a selectable fail-safe mode (default-high or default-low) determined by ordering option. When one side's supply is unpowered while the other remains active, outputs assume the pre-configured logic state-preventing undefined behavior in fault conditions. This behavior is confirmed in Table 4 of the datasheet and applies directly to SI86S641HE-IS2 as a member of the Si86S64x variant group.
What is the purpose of the EN1 and EN2 pins on the SI86S641HE-IS2?
The EN1 and EN2 pins are active-high output enable controls for Side A and Side B, respectively. When asserted, they activate the corresponding side's output drivers; when deasserted, they place all outputs on that side into high-impedance (tri-state) mode. This functionality enables bus sharing, reduces standby power, and supports dynamic isolation domain control in complex systems using SI86S641HE-IS2.
Is the SI86S641HE-IS2 suitable for automotive applications, and what qualifications does it hold?
Yes, the SI86S641HE-IS2 is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C) and manufactured using automotive-specific process flows. It supports onboard chargers, battery management systems, and traction inverters. Its reinforced insulation, 100 kV/µs CMTI, and full safety certifications (UL, VDE, CSA) make SI86S641HE-IS2 compliant with functional safety requirements in EV powertrain subsystems.
What packaging and creepage specifications apply to the SI86S641HE-IS2?
The SI86S641HE-IS2 uses a WB SOIC-16 package (wide-body, 10.3 mm minimum creepage/clearance), enabling 6000 VRMS isolation. This package meets reinforced insulation requirements for high-voltage industrial and automotive applications. The physical dimensions and creepage values are specified in Skyworks' datasheet 206553B and validated for use in 1000 VAC-rated systems per IEC 61000-4-5 and IEC 62368-1.
SI86S641HE-IS2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 6000Vrms
- Common Mode Transient Immunity (Min):
- 150kV/µs
- Data Rate:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 42ns, 42ns
- Pulse Width Distortion (Max):
- 2ns
- 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:
- 16-SOIC
SI86S641HE-IS2 FAQ
1.How can I place an order for SI86S641HE-IS2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S641HE-IS2 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 SI86S641HE-IS2 reliable?
The price and inventory of SI86S641HE-IS2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S641HE-IS2 is usually 5 days.
3.What payment methods are accepted for SI86S641HE-IS2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S641HE-IS2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S641HE-IS2?
SI86S641HE-IS2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S641HE-IS2 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 SI86S641HE-IS2?
For technical support, including SI86S641HE-IS2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S641HE-IS2 requirements.
6.How does Aetrix verify that SI86S641HE-IS2 is sourced from the original manufacturer or authorized distributors?
All SI86S641HE-IS2 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 SI86S641HE-IS2 meets industry standards.
7.What is the process for return or replacement of SI86S641HE-IS2?
All SI86S641HE-IS2 units undergo pre-shipment inspection (PSI). If there is an issue with SI86S641HE-IS2, 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 SI86S641HE-IS2 part is unused and in its original packaging.
Return procedure for SI86S641HE-IS2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S641HE-IS2 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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