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Skyworks Solutions Inc. SI86SL40HC-IS1
- Part No.:
- SI86SL40HC-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86SL40HC-IS1.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:1,023
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Product details
Overview
SI86SL40HC-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 Schmitt-trigger CMOS inputs, tri-state outputs with enable, selectable fail-safe default-high/low output, and operates across –40 to 125 °C in WB SOIC-16 package. It is used in battery management systems and traction inverters where high noise immunity and safety-certified galvanic separation are required.
For engineers reviewing the SI86SL40HC-IS1 datasheet, SI86SL40HC-IS1 pinout, SI86SL40HC-IS1 application, or SI86SL40HC-IS1 equivalent, this page delivers verified specifications, functional context, real-world use cases, and validated alternative options - all aligned to the exact ordering part number and its documented electrical, thermal, and safety characteristics.
Technical Context
The SI86SL40HC-IS1 implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling deterministic timing behavior. Its architecture supports bidirectional signal transfer across four isolated channels with independent side-A and side-B supply domains (2.25–5.5 V), each with dedicated undervoltage lockout (UVLO) and reset thresholds (RSTB± ~1.7 V).
It integrates sleep-mode control via SMb pin (active-low), reducing quiescent current to 750 µA per side while retaining one always-on channel for wake-up detection. Fail-safe output state (default high or low) is fixed by ordering option and enforced during unpowered-side conditions per Table 4 logic operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 150 Mbps - supports high-speed serial interfaces including SPI and QSPI without external clock conditioning. |
| Isolation Rating | 6000 VRMS (1 min) - meets reinforced insulation requirements per UL 1577, VDE 60747-17, and IEC 62368-1 for automotive and industrial safety-critical systems. |
| Propagation Delay | 10 ns typical - enables precise timing alignment in motor control feedback loops and ADC/DAC isolation paths. |
| Supply Voltage | 2.25–5.5 V per side - allows interoperability with 3.3 V and 5 V logic domains on both isolated sides without level shifters. |
| Operating Temperature | –40 to 125 °C - qualified for under-hood automotive applications including onboard chargers and battery electric vehicle power stages. |
| CMTI | ≥100 kV/µs - ensures robust operation in high-dV/dt environments such as SiC/GaN-based inverters and isolated switch-mode supplies. |
| Power Consumption | 0.25 mA/channel lower than Si86S6x - optimized quiescent current enables extended low-power operation in always-on BMS monitoring circuits. |
Pinout & Package
SI86SL40HC-IS1 is housed in a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance compliant for 6000 VRMS working voltage. Pinout matches Si86S64x/L4x family configuration: 4 forward/reverse I/O pairs (A1–A4/B1–B4), dual supply rails (VDD1/GND1 and VDD2/GND2), enable pins (EN1/EN2), and isolation barrier between sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power domain | Supplies and grounds the input-side logic; independent of VDD2/GND2 for true galvanic separation. |
| A1–A4 | Side A digital I/O | Four bidirectional or configurable-direction channels; compatible with CMOS/Schmitt-trigger logic levels. |
| VDD2, GND2 | Side B power domain | Supplies and grounds the output-side logic; supports different voltage than Side A (e.g., 3.3 V ↔ 5 V). |
| B1–B4 | Side B digital I/O | Isolated mirror of A1–A4; maintains signal integrity across high-voltage barriers in motor drives and inverters. |
| EN1, EN2 | Active-high output enable | Tri-states all outputs on respective side; enables single-point control for system-level power sequencing. |
| SMb | Sleep mode control | Active-low pin that shuts down active circuitry on both sides while retaining wake-up capability via one always-on channel. |
Key Features
| Feature | Design Value |
|---|---|
| No start-up initialization | RF modulation architecture eliminates boot delay; outputs become valid within 0.3 ms after VDD rise above UVLO+ (2.18 V). |
| Selectable fail-safe mode | Ordering option fixes default output state (high or low) when input-side supply is unpowered - critical for safe shutdown in BMS fault handling. |
| High electromagnetic immunity | 100 kV/µs CMTI rating prevents false triggering in noisy power electronics environments like traction inverters and industrial motor controllers. |
| Low-power sleep mode | SMb pin reduces total device current to 750 µA per side - enables energy-efficient monitoring in always-on automotive subsystems. |
| Reinforced safety certification | UL 1577, VDE 60747-17, CSA 62368-1, and CQC GB4943.1 approvals - satisfies end-equipment certification requirements for EV and medical isolation. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and pack communication signals between high-voltage battery stack and low-voltage MCU. IC Role / Device Role / Timing Role: Provides galvanically isolated bidirectional data path for analog front-end ADC readings and fault signaling across >1000 V potential difference. Use Value: Enables accurate, noise-immune sampling at 150 Mbps while meeting reinforced insulation requirements for ASIL-D compliant EV architectures. |
Use Scenario: Transmitting PWM gate drive commands and fault feedback between inverter MCU and isolated gate drivers in SiC-based traction inverters. IC Role / Device Role / Timing Role: Delivers sub-10 ns propagation delay and 100 kV/µs CMTI to preserve timing fidelity and prevent shoot-through during fast switching. Use Value: Supports 100+ kHz switching frequencies with deterministic latency, directly contributing to inverter efficiency and thermal margin. |
| Onboard Charger (OBC) | Industrial Isolated ADC Interface |
|
Use Scenario: Isolating digital control signals between AC/DC PFC stage and DC/DC LLC stage in bi-directional OBCs for BEVs. IC Role / Device Role / Timing Role: Acts as a high-speed, fail-safe interface for voltage/current regulation commands and status reporting across isolation boundary. Use Value: Selectable default-low output ensures safe disable of power stages during brownout, complying with ISO 6469-3 functional safety requirements. |
Use Scenario: Connecting isolated precision ADCs (e.g., Σ-Δ converters) to host processors in programmable logic controllers and power quality meters. IC Role / Device Role / Timing Role: Transfers oversampled sensor data at up to 150 Mbps with jitter <100 ps, preserving ENOB in 24-bit measurement chains. Use Value: Eliminates ground loop errors and common-mode transients without adding latency or requiring external level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8640ED-IS1 | Higher quiescent current (≈0.5 mA/channel more), no sleep mode, same pinout and 6000 VRMS rating. | Preferred for cost-sensitive industrial designs where continuous operation outweighs ultra-low-power needs. | Drop-in replacement if sleep mode is unused and higher power budget is acceptable. |
| ADUM2402BRWZ | 4-channel, 25 Mbps max, 2.5 kVRMS, no AEC-Q100, different pinout (SOIC-16 NB), no SMb or fail-safe selection. | Suitable for non-automotive industrial automation where lower data rate and reduced isolation voltage suffice. | Requires PCB redesign; selected only when automotive qualification and 150 Mbps are not required. |
Compared with SI86SL40HC-IS1, SI8640ED-IS1 offers identical footprint and safety rating but lacks sleep mode and consumes more power, while ADUM2402BRWZ provides legacy isolation at lower speed and voltage rating - making SI86SL40HC-IS1 the only choice for AEC-Q100-compliant, high-speed, low-power automotive isolation.
Availability
SI86SL40HC-IS1 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI86SL40HC-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 high-reliability applications.
The Si86S6xx/Lxx/Mxx/Qxx/Sxx family - including SI86SL40HC-IS1 - was designed specifically for automotive and industrial systems demanding reinforced isolation, AEC-Q100 compliance, and low-power operation in harsh thermal and EMI environments.
FAQ
What is the isolation voltage rating of SI86SL40HC-IS1 and which safety standards does it meet?
SI86SL40HC-IS1 provides 6000 VRMS reinforced isolation for 1 minute per UL 1577. It is certified to VDE 60747-17, CSA 62368-1 and 60601-1, and CQC GB4943.1. These approvals validate its use in automotive battery systems and medical equipment where double insulation is mandated. The wide-body SOIC-16 package enables the full 6000 VRMS rating without external spacing constraints.
Does SI86SL40HC-IS1 support fail-safe output configuration, and how is it implemented?
Yes, SI86SL40HC-IS1 offers factory-configured fail-safe mode: either default-high or default-low output when the input-side supply is unpowered. This behavior is defined at order time and cannot be changed in-circuit. During VDD1 undervoltage (below 2.12 V), outputs on Side B hold the pre-programmed state as long as VDD2 remains powered - a critical feature for safe shutdown in battery management systems.
How does the SMb pin function in SI86SL40HC-IS1, and what power savings does it enable?
The SMb pin in SI86SL40HC-IS1 is an active-low sleep mode control. When pulled low, it disables all transmitter and receiver circuits except one dedicated channel that monitors SMb state - reducing total current to 750 µA per side. This enables ultra-low-power monitoring in always-on automotive subsystems. SI86SL40HC-IS1 wakes instantly when SMb is released (pulled high or open).
What is the maximum data rate supported by SI86SL40HC-IS1, and how does it compare to standard SPI interfaces?
SI86SL40HC-IS1 supports up to 150 Mbps per channel - sufficient for quad-SPI (QSPI) interfaces running at ≥37.5 MHz clock rates. Unlike optocouplers or older capacitive isolators, it achieves this without pulse-width distortion compensation or external timing calibration. Its 3.5 ns pulse width distortion and 10 ns propagation delay ensure reliable sampling of high-speed memory read/write cycles in automotive infotainment and ADAS modules.
Is SI86SL40HC-IS1 pin-compatible with other devices in the Si86S6xx family, and what are the key mechanical constraints?
Yes, SI86SL40HC-IS1 shares identical WB SOIC-16 pinout and footprint with Si86S640/641/642 and Si86L40/L41/L42 variants. Mechanical compatibility includes 10.3 mm body width, 2.65 mm height, and 1.27 mm lead pitch. However, sleep mode (SMb) and low-power optimization are unique to SL-series; substituting non-SL parts retains functionality but forfeits 0.25 mA/channel quiescent reduction and SMb control.
SI86SL40HC-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Capacitive Coupling
- Type:
- SPI
- Isolated Power:
- Yes
- 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:
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI86SL40HC-IS1 FAQ
1.How can I place an order for SI86SL40HC-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL40HC-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 SI86SL40HC-IS1 reliable?
The price and inventory of SI86SL40HC-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL40HC-IS1 is usually 5 days.
3.What payment methods are accepted for SI86SL40HC-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL40HC-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL40HC-IS1?
SI86SL40HC-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL40HC-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 SI86SL40HC-IS1?
For technical support, including SI86SL40HC-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL40HC-IS1 requirements.
6.How does Aetrix verify that SI86SL40HC-IS1 is sourced from the original manufacturer or authorized distributors?
All SI86SL40HC-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 SI86SL40HC-IS1 meets industry standards.
7.What is the process for return or replacement of SI86SL40HC-IS1?
All SI86SL40HC-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL40HC-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 SI86SL40HC-IS1 part is unused and in its original packaging.
Return procedure for SI86SL40HC-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL40HC-IS1 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.
-
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.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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