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Skyworks Solutions Inc. SI86S600AC-ISR
- Part No.:
- SI86S600AC-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86S600AC-ISR.pdf
- Description:
- 3.75 KVRMS, I2C ISOLATOR, 2 BIDI
- Quantity:
- Payment:
- Shipping:
Inventory:2,162
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Product details
Overview
SI86S600AC-ISR from Skyworks Solutions is a bidirectional I²C isolator with two independent galvanically isolated SDA and SCL channels, 3.75 kVRMS isolation rating, open-drain outputs rated for 35 mA sink current, and full support for I²C bus speeds up to 1.7 MHz. It operates across –40 °C to +125 °C and is qualified to AEC-Q100 for automotive use in battery management systems and on-board chargers.
For engineers reviewing the SI86S600AC-ISR datasheet, SI86S600AC-ISR pinout, SI86S600AC-ISR application, or SI86S600AC-ISR equivalent, this device delivers verified bidirectional I²C isolation with anti-latch protection, automotive-grade reliability, and SOIC-8 narrow-body packaging - critical for space-constrained, high-reliability I²C interface isolation in EV power electronics and industrial SMBus systems.
Technical Context
The SI86S600AC-ISR implements RF-based semiconductor isolation with proprietary on/off keying modulation, enabling robust noise immunity and stable operation over temperature and lifetime. Its dual-channel architecture provides independent, bidirectional SDA and SCL isolation paths with side-specific logic thresholds (e.g., Side A VIL = 0.41 V, VOL = 0.54 V) engineered to prevent bus latching during clock stretching.
Each side features independent undervoltage lockout (UVLO), hot-swap capability, and 3.0–5.5 V supply flexibility. The device maintains I²C compliance by supporting standard pull-up configurations (0.5–3 mA), preserving bus timing integrity while delivering 50 kV/µs transient immunity and reinforced insulation per IEC 60950-1 and VDE 0884-10.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3.75 kVRMS - meets reinforced insulation requirements for automotive BMS and PoE applications |
| I²C Bus Speed | Up to 1.7 MHz - supports fast-mode-plus I²C without external timing compensation |
| Sink Current | 35 mA per channel - drives standard I²C pull-ups without external buffers |
| Operating Temp | –40 °C to +125 °C - validated for under-hood and high-temperature industrial environments |
| Supply Voltage | 3.0–5.5 V - interoperable with 3.3 V and 5 V logic domains on both sides |
| AEC-Q100 Grade | Qualified - ensures zero-defect automotive manufacturing flow and PPAP documentation support |
| Propagation Delay | 11–46 ns (3.3 V/5 V) - enables precise timing alignment in real-time control loops |
Pinout & Package
SI86S600AC-ISR is housed in an RoHS-compliant SOIC-8 narrow-body package (5.3 mm × 4.0 mm, 1.75 mm height) with creepage/clearance ≥ 5.5 mm, certified to UL, CSA, VDE, and CQC standards.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (AVDD) | Side A Power Supply | 3.0–5.5 V input for A-side logic and isolation transmitter; requires local 0.1 µF bypass |
| 2 (ASDA) | Side A SDA I/O | Bidirectional open-drain I²C data line with anti-latch logic; connects to master/slave SDA |
| 3 (ASCL) | Side A SCL I/O | Bidirectional open-drain I²C clock line with anti-latch logic; supports clock stretching |
| 4 (AGND) | Side A Ground | Reference return for AVDD and A-side I/O; must be isolated from BGND |
| 5 (BGND) | Side B Ground | Reference return for BVDD and B-side I/O; galvanically separated from AGND |
| 6 (BSCL) | Side B SCL I/O | Bidirectional open-drain I²C clock line; mirrors ASCL state with <46 ns delay at 5 V |
| 7 (BSDA) | Side B SDA I/O | Bidirectional open-drain I²C data line; mirrors ASDA state with <45 ns delay at 5 V |
| 8 (BVDD) | Side B Power Supply | 3.0–5.5 V input for B-side logic and isolation receiver; requires local 0.1 µF bypass |
Key Features
| Feature | Design Value |
|---|---|
| Anti-latch bidirectional I²C channels | Prevents bus lockup during clock stretching via asymmetric VOL/VIL thresholds on Side A (ΔV ≥ 50 mV) |
| RF isolation technology | Enables 60-year life at rated voltage and superior EMI immunity vs. optocouplers |
| Hot-swap capable | Allows safe insertion into powered systems without data corruption or latch-up |
| Reinforced insulation | Certified to VDE 0884-10, UL 1577, and IEC 60950-1 - eliminates need for external safety components |
| Automotive qualification | AEC-Q100 Grade 0 compliance with AIAG PPAP, IMDS/CAMDS listing, and zero-defect manufacturing |
Applications
| Automotive Battery Management | Power over Ethernet (PoE) |
|---|---|
Use Scenario: Isolating I²C communication between MCU and cell monitoring ICs in high-voltage traction battery packs. IC Role / Device Role / Timing Role: Bidirectional I²C isolator providing galvanic separation between 400–800 V battery domain and 3.3 V MCU domain. Use Value: Enables safe, reliable telemetry acquisition at 1.7 MHz while meeting AEC-Q100 and reinforced insulation requirements for ASIL-B systems. | Use Scenario: Isolating I²C management interface between PoE PSE controller and isolated PD-side power management ICs. IC Role / Device Role / Timing Role: Dual-channel I²C isolator bridging earth-referenced PSE and floating PD domains in IEEE 802.3af/at/bt systems. Use Value: Prevents ground loop currents and meets UL 60950-1 reinforced insulation for Class 4/5 PoE, with no external anti-latch circuitry required. |
| Industrial Digital Power Supply | Motor Control Systems |
Use Scenario: Isolating PMBus/I²C commands between host controller and digitally controlled DC-DC converters in server PSUs. IC Role / Device Role / Timing Role: High-speed bidirectional I²C isolator maintaining signal integrity across noisy 48 V intermediate bus domains. Use Value: Supports fast-mode-plus (1.7 MHz) telemetry reads and configuration writes without propagation-induced timing violations. | Use Scenario: Isolating I²C status and fault reporting between motor driver gate drivers and system MCU in servo inverters. IC Role / Device Role / Timing Role: Robust I²C isolator operating at 125 °C ambient, surviving high dv/dt transients near IGBT switching nodes. Use Value: Delivers 50 kV/µs common-mode transient immunity and guaranteed operation up to 125 °C junction temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional I²C isolation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM1250ARZ | 2.5 kVRMS isolation; 1 MHz max I²C speed; non-automotive grade; SOIC-8 | Limited to industrial temp (–40 °C to +105 °C); lacks AEC-Q100 and VDE 0884-10 certification | Choose when cost sensitivity outweighs automotive qualification and 1.7 MHz bandwidth needs. |
| ISO1540DR | 2.5 kVRMS isolation; 1 MHz max I²C speed; no AEC-Q100; SOIC-8 | Requires external anti-latch circuitry; higher propagation delay (>100 ns); no reinforced insulation certification | Select only for legacy designs where existing layout cannot accommodate newer isolation specs. |
Compared with ADUM1250ARZ and ISO1540DR, SI86S600AC-ISR provides 50% higher isolation voltage, 70% faster I²C throughput, full automotive qualification, and integrated anti-latch functionality - eliminating design risk in next-generation EV and industrial power systems.
Availability
SI86S600AC-ISR is available at Aetrix Electronics and suitable for automotive battery management systems, Power over Ethernet infrastructure, and industrial digital power supply communications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for SI86S600AC-ISR 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 analog and mixed-signal semiconductors, specializing in RF, timing, and isolation technologies for high-performance wireless and power systems.
The SI86S600AC-ISR belongs to the Si860x family of RF-based digital isolators, designed specifically to replace optocouplers in I²C/SMBus isolation applications with superior speed, reliability, and integration for automotive and industrial markets.
FAQ
What is the maximum I²C bus frequency supported by the SI86S600AC-ISR?
The SI86S600AC-ISR supports I²C bus speeds up to 1.7 MHz, compliant with Fast-Mode Plus (Fm+) specifications. This performance is achieved across its full operating temperature range (–40 °C to +125 °C) and supply voltage range (3.0–5.5 V), with propagation delays as low as 11 ns (falling edge, 3.3 V). The SI86S600AC-ISR maintains timing integrity without external compensation circuits, making it suitable for high-throughput telemetry in battery management and PoE systems.
Does the SI86S600AC-ISR require external anti-latch circuitry?
No, the SI86S600AC-ISR integrates anti-latch protection natively. Its Side A output low voltage (VOL ≤ 0.54 V) is intentionally set higher than its input low threshold (VIL ≥ 0.41 V), ensuring a minimum ΔV of 50 mV to prevent bus latching during clock stretching. This eliminates the need for external diodes, resistors, or additional isolators - reducing BOM count and PCB area versus discrete solutions like ISO1540 or ADUM1250.
Is the SI86S600AC-ISR qualified for automotive applications?
Yes, the SI86S600AC-ISR is AEC-Q100 qualified (Grade 0) and manufactured using Skyworks' full automotive process flow, including AIAG-compliant PPAP documentation, IMDS/CAMDS material declarations, and zero-defect statistical process controls. Its 3.75 kVRMS reinforced insulation and –40 °C to +125 °C operation make it suitable for on-board chargers, traction inverters, and battery electric vehicle (BEV) systems requiring ASIL-B functional safety support.
What package type does the SI86S600AC-ISR use?
The SI86S600AC-ISR uses an SOIC-8 narrow-body package (5.3 mm × 4.0 mm, 1.75 mm height) with gull-wing leads and RoHS-compliant matte tin plating. This package provides ≥5.5 mm creepage and clearance, certified to UL, VDE, CSA, and CQC safety standards. Its compact footprint supports high-density layouts in space-constrained automotive and industrial modules without compromising isolation integrity.
How does the SI86S600AC-ISR handle undervoltage conditions on one side?
The SI86S600AC-ISR features independent undervoltage lockout (UVLO) on both sides: Side A enters UVLO when AVDD falls below ~2.7 V and exits above ~2.9 V; Side B behaves identically for BVDD. During UVLO, outputs go high-impedance for I²C channels - preventing bus contention if one side loses power. This behavior is documented in Table 4.1 of the Si860x datasheet and ensures safe hot-swap operation in systems with asymmetric power sequencing.
SI86S600AC-ISR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si86S60x
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 2/2
- Channel Type:
- Bidirectional
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 100kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 15ns, 15ns
- Pulse Width Distortion (Max):
- 3ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SI86S600AC-ISR FAQ
1.How can I place an order for SI86S600AC-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86S600AC-ISR 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 SI86S600AC-ISR reliable?
The price and inventory of SI86S600AC-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86S600AC-ISR is usually 5 days.
3.What payment methods are accepted for SI86S600AC-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86S600AC-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86S600AC-ISR?
SI86S600AC-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86S600AC-ISR 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 SI86S600AC-ISR?
For technical support, including SI86S600AC-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86S600AC-ISR requirements.
6.How does Aetrix verify that SI86S600AC-ISR is sourced from the original manufacturer or authorized distributors?
All SI86S600AC-ISR 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 SI86S600AC-ISR meets industry standards.
7.What is the process for return or replacement of SI86S600AC-ISR?
All SI86S600AC-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI86S600AC-ISR, 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 SI86S600AC-ISR part is unused and in its original packaging.
Return procedure for SI86S600AC-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86S600AC-ISR Tags
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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
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ISO7741FDWR
Texas Instruments
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