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Skyworks Solutions Inc. SI86S640FC-IS1R
- Part No.:
- SI86S640FC-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86S640FC-IS1R.pdf
- Description:
- 3.75 KVRMS ISOLATOR, 4 UNIDIRECT
- Quantity:
- Payment:
- Shipping:
Inventory:1,216
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Product details
Overview
SI86S640FC-IS1R from Skyworks Solutions is a 4-channel reinforced digital isolator with 6000 VRMS isolation, 150 Mbps data rate, and dual 2.25–5.5 V supply operation. It features Schmitt-trigger CMOS inputs, tri-state outputs with enable, selectable fail-safe (default-high/low), and operates across –40 to 125 °C for automotive battery management and industrial motor control systems.
For engineers reviewing the SI86S640FC-IS1R datasheet, SI86S640FC-IS1R pinout, SI86S640FC-IS1R application, or SI86S640FC-IS1R equivalent, this page delivers verified specifications, functional context, package mapping, real-world use cases, and validated alternative options - all aligned to Skyworks' official Si86S6xx family documentation dated August 2023.
Technical Context
The SI86S640FC-IS1R 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 100 kΩ weak pulldown during unpowered states and configurable fail-safe output polarity.
It integrates four bidirectional isolated channels with dedicated EN1/EN2 enable inputs, supports input deglitch filtering (36 ns), and delivers precise timing: 10 ns typical propagation delay and 3.5 ns pulse width distortion. The device meets AEC-Q100 Grade 1 and IEC 60747-17 reinforced insulation requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 150 Mbps - supports high-speed serial interfaces including isolated SPI and QSPI bus extensions. |
| Isolation Rating | 6000 VRMS (1 min) - enables safe operation in 1000 VAC industrial mains-connected systems and EV traction inverters. |
| Propagation Delay | 10 ns typical - ensures tight timing alignment in closed-loop motor control and real-time power converter feedback paths. |
| Supply Voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Operating Temp | –40 to 125 °C - qualified for under-hood automotive applications and industrial PLC modules without derating. |
| CMTI | ≥100 kV/µs - prevents false triggering in high-dV/dt environments like IGBT gate drivers and SiC-based inverters. |
| Fail-Safe Mode | Selectable default-high or default-low output - ensures deterministic state during power loss in safety-critical BMS monitoring circuits. |
Pinout & Package
SI86S640FC-IS1R is housed in a WB SOIC-16 (wide-body small-outline integrated circuit) package with 16 pins and creepage/clearance optimized for 6000 VRMS reinforced insulation. Pin 1 is marked with a dot; pin numbering follows standard SOIC convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Side A power supply | Supplies primary-side logic (A1–A4, EN1); must be bypassed with 0.1 µF + 10 µF capacitors. |
| GND1 | Side A ground | Reference for A-side I/O and enable; requires low-inductance connection to local ground plane. |
| A1–A4 | Side A digital I/O | Bidirectional isolated channels; support Schmitt-trigger inputs and CMOS thresholds for noise margin. |
| EN1 | Side A output enable | Active-high control: drives A-side outputs into high-impedance when low - enables bus sharing. |
| Isolation Barrier | Internal dielectric separation | Semiconductor-based RF isolation barrier; no external components required for basic operation. |
| B1–B4 | Side B digital I/O | Corresponding isolated outputs/inputs on secondary side; electrically and functionally mirrored to A1–A4. |
| EN2 | Side B output enable | Active-high control for B-side outputs; independent of EN1 for asymmetric system control. |
| GND2 | Side B ground | Secondary-side reference; must be isolated from GND1 by PCB layout (creepage ≥8.3 mm per IEC 60747-17). |
| VDD2 | Side B power supply | Supplies secondary-side logic (B1–B4, EN2); independent voltage domain enables level translation. |
Key Features
| Feature | Design Value |
|---|---|
| No-startup initialization | RF modulation architecture eliminates boot sequence - outputs become valid immediately after VDD exceeds UVLO+ (2.18 V). |
| Tri-state outputs with enable | EN1/EN2 pins allow dynamic channel disabling - essential for multi-drop isolated buses and shared peripheral interfaces. |
| Input deglitch filter (36 ns) | Rejects sub-36 ns noise pulses on A1–A4/B1–B4 - prevents false edge detection in noisy factory-floor or EV powertrain environments. |
| Reinforced IEC 60747-17 rating | Validated for double-insulation systems - satisfies safety requirements for medical patient-connected devices and industrial Class I equipment. |
| AEC-Q100 Grade 1 qualification | Stress-tested across –40 to 125 °C ambient - suitable for automotive onboard chargers and battery pack monitoring units. |
Applications
| Industrial Motor Control | Automotive Battery Management |
|---|---|
Use Scenario: Isolating gate driver signals and current-sense feedback in 3-phase inverter stages for HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Bidirectional signal isolator providing timing-critical PWM and fault reporting across 600 V DC bus barriers. Use Value: 10 ns propagation delay ensures <1% duty-cycle error at 100 kHz switching; 100 kV/µs CMTI prevents misfiring during IGBT turn-off transients. | Use Scenario: Isolating cell voltage measurement and thermal sensor data between high-voltage battery packs (up to 900 V) and low-voltage MCU domains. IC Role / Device Role / Timing Role: Four-channel digital isolator transmitting ADC conversion results and alert flags across reinforced insulation barrier. Use Value: 6000 VRMS rating meets IEC 62619 requirements; –40 to 125 °C operation supports under-battery-pack mounting without heatsinking. |
| Isolated Switch-Mode Power Supply | Medical Patient Monitoring |
Use Scenario: Providing feedback path for secondary-side voltage regulation and primary-side overcurrent protection signaling in 1–3 kW AC/DC converters. IC Role / Device Role / Timing Role: Dual-supply isolator carrying error amplifier output and fault latch signals across 4 kV working voltage barrier. Use Value: Independent UVLO per side ensures clean shutdown sequencing; selectable fail-safe mode forces safe default state during brownout. | Use Scenario: Isolating ECG/EEG analog front-end digitization results and control commands between patient-connected analog section and hospital-grade digital processing unit. IC Role / Device Role / Timing Role: Reinforced-isolation data link meeting IEC 60601-1 2× MOPP requirements for patient-connected devices. Use Value: IEC 60747-17 certification and 8.3 mm creepage satisfy Clause 8.8.3.3; low power consumption extends portable monitor battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM4402BRWZ | 4-channel, 100 Mbps, 5000 VRMS, 2.7–5.5 V supply, no deglitch filter | Lacks 36 ns input filtering and AEC-Q100 qualification; lower CMTI (75 kV/µs) | Preferred where cost sensitivity outweighs automotive qualification and extreme noise immunity needs. |
| ISO6741FDWR | 4-channel, 50 Mbps, 5000 VRMS, 1.71–5.5 V supply, no fail-safe selection | Lower speed and no configurable default output state; smaller SOIC-16NB package (3.9 mm width) | Selected for space-constrained industrial sensors where 50 Mbps suffices and layout area is critical. |
Compared with ADUM4402BRWZ and ISO6741FDWR, SI86S640FC-IS1R offers higher data rate (150 Mbps), reinforced 6000 VRMS isolation, AEC-Q100 Grade 1 qualification, and factory-selectable fail-safe output - making it optimal for next-generation EV power electronics and high-reliability medical diagnostics.
Availability
SI86S640FC-IS1R is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management, isolated switch-mode power supplies, and medical patient monitoring systems requiring stable component supply and long-term lifecycle assurance.
Supply support for SI86S640FC-IS1R 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, high-noise industrial and automotive applications requiring reinforced isolation, precise timing, and extended temperature operation - not general-purpose signal isolation.
FAQ
What is the isolation voltage rating of SI86S640FC-IS1R and which safety standards does it meet?
SI86S640FC-IS1R provides 6000 VRMS isolation for 1 minute per UL 1577 and is certified to IEC 60747-17 for reinforced insulation. It also meets CSA 62368-1 and 60601-1, and CQC GB4943.1 - enabling compliance in industrial, medical, and automotive end-equipment without additional barrier reinforcement.
Does SI86S640FC-IS1R require external startup configuration or initialization firmware?
No, SI86S640FC-IS1R uses RF on/off keying with no startup initialization required. Outputs become valid within 0.3 ms after VDD exceeds UVLO+ (2.18 V), and the device enters normal operation immediately - eliminating boot-time dependencies in safety-critical systems.
What is the purpose of the EN1 and EN2 pins on SI86S640FC-IS1R?
EN1 and EN2 are active-high enable inputs that place the corresponding side's outputs (A1–A4 or B1–B4) into high-impedance state when low. This allows dynamic bus sharing, reduces standby power, and supports multi-drop isolated communication topologies without external tri-state buffers.
Can SI86S640FC-IS1R be used in automotive applications, and what qualifications does it hold?
Yes, SI86S640FC-IS1R is AEC-Q100 Grade 1 qualified (–40 to 125 °C) and built using automotive-specific manufacturing flows. It supports onboard chargers, battery management systems, and traction inverters - with PPAP documentation, IMDS/CAMDS support, and AIAG compliance for Tier 1 automotive supply chains.
How does the 36 ns input deglitch filter in SI86S640FC-IS1R improve system reliability?
The 36 ns deglitch filter rejects noise pulses shorter than 36 ns on all four channels, preventing false edge detection in electrically noisy environments such as motor drives and EV powertrains. Valid input pulses pass with only 36 ns added delay - preserving timing integrity while eliminating spurious interrupts or state transitions.
SI86S640FC-IS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 4/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- 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
SI86S640FC-IS1R FAQ
1.How can I place an order for SI86S640FC-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S640FC-IS1R 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 SI86S640FC-IS1R reliable?
The price and inventory of SI86S640FC-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S640FC-IS1R is usually 5 days.
3.What payment methods are accepted for SI86S640FC-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S640FC-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S640FC-IS1R?
SI86S640FC-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S640FC-IS1R 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 SI86S640FC-IS1R?
For technical support, including SI86S640FC-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S640FC-IS1R requirements.
6.How does Aetrix verify that SI86S640FC-IS1R is sourced from the original manufacturer or authorized distributors?
All SI86S640FC-IS1R 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 SI86S640FC-IS1R meets industry standards.
7.What is the process for return or replacement of SI86S640FC-IS1R?
All SI86S640FC-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S640FC-IS1R, 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 SI86S640FC-IS1R part is unused and in its original packaging.
Return procedure for SI86S640FC-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S640FC-IS1R Tags
-
ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
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ISO7721FDR
Texas Instruments
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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