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Skyworks Solutions Inc. SI86S640HE-IS2R
- Part No.:
- SI86S640HE-IS2R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI86S640HE-IS2R.pdf
- Description:
- 6.0 KVRMS ISOLATOR, 4 UNIDIRECTI
- Quantity:
- Payment:
- Shipping:
Inventory:4,526
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Product details
Overview
SI86S640HE-IS2R from Skyworks Solutions is a 4-channel, reinforced digital isolator with 6000 VRMS isolation rating, 150 Mbps data rate, and AEC-Q100 qualification for automotive systems. It features dual 2.25–5.5 V supplies, Schmitt-trigger + CMOS inputs, tri-state outputs with enable, and selectable fail-safe default-high output mode. Used in onboard chargers and battery management systems where high noise immunity and safety-certified signal isolation are required.
For engineers reviewing the SI86S640HE-IS2R datasheet, SI86S640HE-IS2R pinout, SI86S640HE-IS2R application, or SI86S640HE-IS2R equivalent, key selection criteria include reinforced IEC 60747-17 certification, 10 ns typical propagation delay, 3.5 ns pulse width distortion, transient immunity ≥100 kV/µs, and WB SOIC-16 package compatibility with 6.0 kVRMS withstand voltage.
Technical Context
The SI86S640HE-IS2R 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 per side (VDD1/VDD2), with RSTB thresholds at ~1.7 V and 100 kΩ weak pulldown during unpowered states.
It delivers four bidirectional isolated channels with EN1/EN2 active-high output enables, Schmitt-trigger inputs for >0.15×VDD hysteresis, and precise timing: 10 ns propagation delay (typ), 3.5 ns pulse width distortion (typ), and <1 ns channel-to-channel skew. Fail-safe default-high behavior is fixed by ordering option HE.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces including isolated SPI and QSPI data paths |
| Isolation rating | 6000 VRMS for 1 minute - meets UL 1577 and IEC 60747-17 reinforced insulation requirements |
| Propagation delay | 10 ns (typ) - enables tight timing budgets in motor control gate drivers and ADC sampling clocks |
| Pulse width distortion | 3.5 ns (typ) - preserves duty cycle integrity for PWM and clock distribution applications |
| Supply voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains without level shifters |
| Transient immunity | ≥100 kV/µs - ensures reliable operation in high-dV/dt environments like traction inverters |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive and industrial ambient conditions |
Pinout & Package
SI86S640HE-IS2R is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance optimized for 6.0 kVRMS working voltage. Pin layout follows Figure 2 (Si86S64x/L4x) in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply | Provides isolated 2.25–5.5 V bias for input-side logic and transmitter circuits |
| A1–A4 | Side A digital I/O | Bidirectional isolated data channels; support Schmitt-trigger + CMOS threshold inputs |
| EN1 | Side A output enable | Active-high control: drives all A-side outputs into high-impedance when low |
| VDD2, GND2 | Side B power supply | Independent 2.25–5.5 V bias for output-side logic and receiver circuits |
| B1–B4 | Side B digital I/O | Corresponding isolated outputs; default-high fail-safe state asserted when VDD1 unpowered |
| EN2 | Side B output enable | Active-high control: places all B-side outputs in high-impedance when low |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot-time delays-output follows input immediately after UVLO exit |
| Reinforced IEC 60747-17 rating | Validated insulation structure enables use in medical (60601-1) and industrial (62368-1) safety-critical systems |
| Selectable fail-safe mode | HE ordering option fixes default output state to logic high during VDD1 loss-critical for gate driver safety shutdown |
| Tri-state outputs with enable | EN1/EN2 pins allow single-point control of all outputs per side-simplifies bus arbitration in multi-device systems |
| Input deglitch filter | 36 ns filter removes sub-pulse noise without affecting valid signal edges-reduces false triggering in noisy EMI environments |
Applications
| Onboard Charger Control | Battery Management System (BMS) |
|---|---|
Use Scenario: Isolating MCU GPIOs and ADC references between low-voltage control domain and 400–800 V DC-link monitoring circuitry. IC Role / Device Role / Timing Role: SI86S640HE-IS2R provides four independent galvanic barriers for feedback signals, gate drive enable, and fault reporting with 10 ns timing precision. Use Value: Reinforced 6000 VRMS isolation prevents high-voltage transients from compromising MCU integrity during fast-switching events. | Use Scenario: Separating cell voltage measurement ICs and pack contactor drivers from the main BMS controller in EV battery packs. IC Role / Device Role / Timing Role: SI86S640HE-IS2R carries isolated analog monitor data and digital command signals while maintaining fail-safe default-high output for contactor release. Use Value: AEC-Q100 qualification and –40 to 125 °C operation ensure reliability across thermal cycling and vibration in automotive battery enclosures. |
| Traction Inverter Gate Drive | Industrial Motor Control PLC |
Use Scenario: Transmitting PWM signals from controller to isolated gate drivers in SiC-based traction inverters operating at >10 kHz switching frequencies. IC Role / Device Role / Timing Role: SI86S640HE-IS2R delivers synchronized, low-skew isolated PWM with 3.5 ns pulse width distortion to preserve dead-time accuracy. Use Value: 100 kV/µs CMTI rating prevents false turn-on of high-side switches during high dV/dt commutation events. | Use Scenario: Interfacing programmable logic controller (PLC) CPU modules with isolated I/O expansion cards in factory automation cabinets. IC Role / Device Role / Timing Role: SI86S640HE-IS2R isolates digital status, command, and synchronization signals between backplane and field-side modules. Use Value: Dual 2.25–5.5 V supply range enables direct connection to both 3.3 V FPGA controllers and 5 V relay drivers without external level translation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM140D0BRWZ | 4-channel, 150 Mbps, 3750 VRMS, SOIC-16, default-low fail-safe | Lacks AEC-Q100 qualification and 6000 VRMS rating; suitable for non-automotive industrial use only | Choose when lower isolation voltage suffices and cost sensitivity outweighs automotive compliance needs |
| ISO6741FDWR | 4-channel, 50 Mbps, 5000 VRMS, SOIC-16, default-high fail-safe, no deglitch filter | Lower data rate and transient immunity; lacks input noise filtering and AEC-Q100 grade | Choose for cost-sensitive, lower-speed applications where 36 ns deglitching is not required |
Compared with ADUM140D0BRWZ and ISO6741FDWR, SI86S640HE-IS2R uniquely combines AEC-Q100 qualification, 6000 VRMS reinforced isolation, 150 Mbps speed, and integrated 36 ns input deglitching-making it the only option qualified for high-reliability automotive traction and charging systems requiring simultaneous high speed, safety, and noise resilience.
Availability
SI86S640HE-IS2R is available at Aetrix Electronics and suitable for onboard chargers, battery management systems, and traction inverters requiring stable component supply across automotive production lifecycles.
Supply support for SI86S640HE-IS2R 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 for wireless, automotive, and industrial markets.
The Si86S6xx family is engineered for high-reliability galvanic isolation in safety-critical systems-targeting automotive electrification, industrial automation, and medical equipment where reinforced insulation and AEC-Q100 compliance are mandatory.
FAQ
What is the isolation voltage rating of SI86S640HE-IS2R and which safety standards does it meet?
SI86S640HE-IS2R has a 6000 VRMS isolation rating 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. This makes SI86S640HE-IS2R suitable for high-voltage automotive and medical applications requiring double insulation protection.
Does SI86S640HE-IS2R require power-on initialization or configuration before operation?
No, SI86S640HE-IS2R requires no start-up initialization. Its RF-based on/off keying architecture enables immediate signal transmission after VDD exits undervoltage lockout (UVLO). Outputs follow inputs within 0.3 ms of VDD stabilization, with no firmware or register setup needed-unlike optocoupler replacements or complex digital isolators.
What is the meaning of the 'HE' suffix in SI86S640HE-IS2R?
The 'HE' suffix in SI86S640HE-IS2R denotes the default-high fail-safe output option. When Side A (VDD1) is unpowered but Side B (VDD2) remains active, all B-side outputs default to logic high. This behavior is factory-set and irreversible-critical for safety-critical gate driver enable/disable logic in automotive inverters.
Can SI86S640HE-IS2R be used in systems with mixed 3.3 V and 5 V logic domains?
Yes, SI86S640HE-IS2R supports 2.25–5.5 V on both VDD1 and VDD2 independently. This allows direct interfacing with 3.3 V microcontrollers on Side A and 5 V peripheral drivers on Side B-no external level shifters required. Input thresholds scale with VDD (VIH = 0.7×VDD, VIL = 0.3×VDD), ensuring robust logic recognition across voltage combinations.
What packaging and footprint does SI86S640HE-IS2R use, and what is its creepage/clearance capability?
SI86S640HE-IS2R uses a wide-body SOIC-16 (WB SOIC-16) package with 7.5 mm creepage and clearance-validated for 6000 VRMS working voltage. This exceeds standard SOIC-16 dimensions and enables compliance with IEC 62368-1 and IEC 60601-1 end-equipment spacing requirements without additional PCB isolation barriers.
SI86S640HE-IS2R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm 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:
- 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
SI86S640HE-IS2R FAQ
1.How can I place an order for SI86S640HE-IS2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S640HE-IS2R 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 SI86S640HE-IS2R reliable?
The price and inventory of SI86S640HE-IS2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S640HE-IS2R is usually 5 days.
3.What payment methods are accepted for SI86S640HE-IS2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S640HE-IS2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S640HE-IS2R?
SI86S640HE-IS2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S640HE-IS2R 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 SI86S640HE-IS2R?
For technical support, including SI86S640HE-IS2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S640HE-IS2R requirements.
6.How does Aetrix verify that SI86S640HE-IS2R is sourced from the original manufacturer or authorized distributors?
All SI86S640HE-IS2R 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 SI86S640HE-IS2R meets industry standards.
7.What is the process for return or replacement of SI86S640HE-IS2R?
All SI86S640HE-IS2R units undergo pre-shipment inspection (PSI). If there is an issue with SI86S640HE-IS2R, 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 SI86S640HE-IS2R part is unused and in its original packaging.
Return procedure for SI86S640HE-IS2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S640HE-IS2R 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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