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Skyworks Solutions Inc. SI86SL42BC-IS1
- Part No.:
- SI86SL42BC-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86SL42BC-IS1.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:1,230
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Product details
Overview
SI86SL42BC-IS1 from Skyworks Solutions is a 4-channel, low-power digital isolator with reinforced 6000 VRMS isolation, 150 Mbps data rate, and AEC-Q100 qualification for automotive systems. It features two forward and two reverse signal paths across an RF-based semiconductor isolation barrier, operates from 2.25–5.5 V on both sides, and supports fail-safe default-high or default-low output states during power loss - used in battery management systems and traction inverters.
For engineers reviewing the SI86SL42BC-IS1 datasheet, SI86SL42BC-IS1 pinout, SI86SL42BC-IS1 application, or SI86SL42BC-IS1 equivalent, key selection criteria include its 10 ns typical propagation delay, 3.5 ns pulse width distortion, 100 kV/µs CMTI, sleep mode control via SMb pin, and WB SOIC-16 package with 8.3 mm creepage for reinforced insulation compliance.
Technical Context
The SI86SL42BC-IS1 implements RF-based on/off keying modulation across a monolithic semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical or magnetic coupling. Its architecture integrates Schmitt-trigger inputs with CMOS thresholds and supports tri-state outputs via EN1/EN2 enable pins.
This device belongs to the Si86SLx subfamily optimized for low quiescent current (0.25 mA/channel less than Si86S6x), with sleep mode activated by the SMb pin - pulling SMb low reduces supply current to 750 µA per side while retaining one active channel to monitor SMb state for wake-up.
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) - meets reinforced insulation requirements per UL 1577, VDE 60747-17, and IEC 62368-1. |
| Propagation Delay | 10 ns typical - enables precise timing-critical applications such as motor control gate drive synchronization. |
| Pulse Width Distortion | 3.5 ns typical - ensures minimal duty cycle error in PWM or clock forwarding applications. |
| CMTI | ≥100 kV/µs - maintains signal integrity in high dv/dt environments like power inverters and onboard chargers. |
| Supply Voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains without level-shifting circuitry. |
| Operating Temp | –40 to +125 °C - qualified for under-hood automotive use and industrial automation ambient conditions. |
Pinout & Package
SI86SL42BC-IS1 is housed in a wide-body SOIC-16 (WB SOIC-16) package with 8.3 mm creepage and 10.3 mm clearance, supporting 6000 VRMS reinforced isolation. Pin numbering follows standard SOIC-16 layout with isolation barrier between Side A (pins 1–8) and Side B (pins 9–16).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply | Provides bias for input-side transmitters and logic; requires 0.1 µF + 10 µF bypass capacitors. |
| A1–A4 | Side A digital I/O | Four bidirectional channels: A1/A2 forward, A3/A4 reverse - configurable direction per channel group. |
| SMb | Sleep mode control | Active-low input that disables all transmitters except one monitoring channel; enables ultra-low-power standby. |
| GND2, VDD2 | Side B power supply | Independent supply domain for output-side receivers and drivers; galvanically isolated from Side A. |
| B1–B4 | Side B digital I/O | Corresponding isolated outputs/inputs: B1/B2 mirror A1/A2 (forward), B3/B4 mirror A3/A4 (reverse). |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and transformer saturation issues; achieves stable performance over temperature and lifetime. |
| Fail-safe output mode | Selectable at order time (BC = default high); ensures known logic state during VDD1/VDD2 brownout or loss. |
| Schmitt-trigger inputs | Provides 0.15 × VDDx hysteresis - rejects noise on long PCB traces or noisy industrial bus lines. |
| Tri-state output control | EN1/EN2 pins disable all outputs on respective sides - enables bus sharing and hot-swap compatibility. |
| Low-power sleep mode | 750 µA per side quiescent current when SMb = low - extends battery life in always-on automotive subsystems. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and pack communication between high-voltage battery stack and low-voltage MCU. IC Role / Device Role / Timing Role: SI86SL42BC-IS1 provides four independent isolated data paths for voltage sampling ADC interface and fault reporting signals. Use Value: 6000 VRMS rating enables direct connection to >800 V DC battery packs; 10 ns delay preserves sampling timing accuracy. |
Use Scenario: Transmitting PWM gate drive commands and feedback signals between inverter controller and IGBT/SiC driver stages. IC Role / Device Role / Timing Role: SI86SL42BC-IS1 forwards high-frequency PWM edges with <3.5 ns pulse distortion to prevent shoot-through. Use Value: 100 kV/µs CMTI prevents false triggering in high dv/dt switching nodes; AEC-Q100 ensures reliability in EV drivetrain. |
| Onboard Charger (OBC) | Industrial PLC I/O Module |
|
Use Scenario: Isolating AC/DC and DC/DC control loops, including primary-side feedback and secondary-side communication in bi-directional OBC. IC Role / Device Role / Timing Role: SI86SL42BC-IS1 carries isolated analog sensor data, status flags, and command signals across safety barriers. Use Value: Dual supply range (2.25–5.5 V) interfaces seamlessly with both 3.3 V MCU and 5 V analog front-end ICs. |
Use Scenario: Providing channel-isolated digital input/output for fieldbus-connected sensors and actuators in factory automation. IC Role / Device Role / Timing Role: SI86SL42BC-IS1 delivers four independent 150 Mbps links for real-time I/O status updates and control commands. Use Value: WB SOIC-16 package meets IPC-2221 creepage requirements for 300 VAC industrial mains isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM140D0BRIZ | 4-channel, 150 Mbps, 3750 VRMS, 2.7–5.5 V supply, no sleep mode, SOIC-16 NB package. | Lacks reinforced 6000 VRMS rating and automotive qualification; suitable for non-safety-critical industrial use only. | Choose ADUM140D0BRIZ where lower isolation voltage suffices and cost sensitivity outweighs AEC-Q100 requirement. |
| ISO6741FDWR | 4-channel, 50 Mbps, 5000 VRMS, 1.71–5.5 V, integrated LDO, SOIC-16 WB package. | Lower data rate and isolation rating; includes LDO but no SMb sleep control or fail-safe option. | Choose ISO6741FDWR when system-level voltage regulation is needed and 150 Mbps is not required. |
Compared with ADUM140D0BRIZ and ISO6741FDWR, SI86SL42BC-IS1 uniquely combines AEC-Q100 qualification, 6000 VRMS reinforced isolation, 150 Mbps speed, and hardware-controlled sleep mode - making it the only option qualified for high-reliability automotive traction and charging applications requiring full safety certification.
Availability
SI86SL42BC-IS1 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, onboard chargers, and industrial PLC I/O modules requiring stable component supply across automotive and industrial design cycles.
Supply support for SI86SL42BC-IS1 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 for wireless, automotive, and industrial markets.
SI86SL42BC-IS1 belongs to the Si86Sx family of RF-based digital isolators designed specifically for high-reliability, high-speed galvanic isolation in automotive electrification and industrial power conversion systems.
FAQ
What is the isolation voltage rating of SI86SL42BC-IS1 and which safety standards does it meet?
SI86SL42BC-IS1 provides 6000 VRMS reinforced isolation for 1 minute per UL 1577, and is certified to VDE 60747-17, IEC 62368-1, and IEC 60601-1 for medical-grade isolation. It achieves this in a WB SOIC-16 package with 8.3 mm creepage, making SI86SL42BC-IS1 suitable for high-voltage battery systems and medical power supplies where reinforced insulation is mandated.
Does SI86SL42BC-IS1 support fail-safe output behavior during power loss?
Yes, SI86SL42BC-IS1 offers factory-selectable fail-safe modes: the "BC" suffix indicates default-high output state when either VDD1 or VDD2 is unpowered. This behavior is implemented via internal circuitry that holds outputs at logic high during undervoltage lockout, ensuring predictable system response in SI86SL42BC-IS1-based BMS and inverter designs.
How does the SMb pin function in SI86SL42BC-IS1, and what power savings does it provide?
The SMb pin in SI86SL42BC-IS1 is an active-low sleep mode control that reduces total supply current to 750 µA per side when asserted. Unlike simple enable pins, SMb shuts down all transmitter circuits except one dedicated channel that continuously monitors SMb state - allowing immediate wake-up when SMb is released. This makes SI86SL42BC-IS1 ideal for intermittent-operation automotive subsystems.
What is the propagation delay and pulse width distortion specification for SI86SL42BC-IS1?
SI86SL42BC-IS1 has a typical propagation delay of 10 ns and pulse width distortion of 3.5 ns, measured at 5 V supply and 25 °C. These values remain stable across –40 to +125 °C and support precise timing alignment in PWM gate drive, encoder feedback, and high-speed serial protocols - critical parameters verified in SI86SL42BC-IS1's automotive-grade characterization.
Is SI86SL42BC-IS1 compatible with standard SOIC-16 footprints, and what package variant does it use?
SI86SL42BC-IS1 uses the wide-body SOIC-16 (WB SOIC-16) package with 10.3 mm minimum clearance and 8.3 mm creepage, differing from standard NB SOIC-16. While pin-compatible with other Si86Sx devices in the same family, it requires PCB layout adjustment for the wider body to meet reinforced insulation spacing requirements - a key design consideration for SI86SL42BC-IS1 integration.
SI86SL42BC-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 2/2
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 100kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 18ns, 18ns
- Pulse Width Distortion (Max):
- 7ns
- 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
SI86SL42BC-IS1 FAQ
1.How can I place an order for SI86SL42BC-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL42BC-IS1 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 SI86SL42BC-IS1 reliable?
The price and inventory of SI86SL42BC-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL42BC-IS1 is usually 5 days.
3.What payment methods are accepted for SI86SL42BC-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL42BC-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL42BC-IS1?
SI86SL42BC-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL42BC-IS1 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 SI86SL42BC-IS1?
For technical support, including SI86SL42BC-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL42BC-IS1 requirements.
6.How does Aetrix verify that SI86SL42BC-IS1 is sourced from the original manufacturer or authorized distributors?
All SI86SL42BC-IS1 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 SI86SL42BC-IS1 meets industry standards.
7.What is the process for return or replacement of SI86SL42BC-IS1?
All SI86SL42BC-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL42BC-IS1, 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 SI86SL42BC-IS1 part is unused and in its original packaging.
Return procedure for SI86SL42BC-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL42BC-IS1 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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