My Inquiry
My Account
Skyworks Solutions Inc. SI86SL40FC-IS1R
- Part No.:
- SI86SL40FC-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI86SL40FC-IS1R.pdf
- Description:
- 3.75 KVRMS LOW POWER ISOLATOR, 4
- Quantity:
- Payment:
- Shipping:
Inventory:4,624
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI86SL40FC-IS1R 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 inputs, tri-state outputs with enable, selectable fail-safe default-high/low output, and operates across –40 to 125 °C in a WB SOIC-16 package. Used in battery management systems and traction inverters where high noise immunity and safety-certified isolation are critical.
For engineers reviewing the SI86SL40FC-IS1R datasheet, SI86SL40FC-IS1R pinout, SI86SL40FC-IS1R application, or SI86SL40FC-IS1R equivalent, key selection criteria include its 6000 VRMS reinforced insulation per UL 1577 and VDE 60747-17, 10 ns typical propagation delay, sleep-mode support via SMb pin, and compatibility with isolated SPI and bidirectional bus architectures.
Technical Context
The SI86SL40FC-IS1R implements RF-based on/off keying across a semiconductor isolation barrier-eliminating startup initialization and delivering superior CMTI (>100 kV/µs) versus optocouplers. Its architecture integrates side-specific undervoltage lockout (UVLO+ = 2.18 V, UVLO– = 2.05 V) and reset thresholds (RSTB± ≈ 1.7 V), enabling robust power sequencing in automotive BMS and OBC applications.
It supports dual-supply operation (2.25–5.5 V per side), includes a dedicated SMb pin for hardware-controlled sleep mode (750 µA per side active), and provides fail-safe output configuration determined at ordering-default-high or default-low during unpowered input conditions while output supply remains active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed CAN FD gateways and isolated ADC sampling clocks. |
| Isolation rating | 6000 VRMS (1 min) - meets reinforced insulation requirements for 800 V battery systems per IEC 60747-17. |
| Propagation delay | 10 ns typical - enables tight timing control in motor phase current sensing feedback loops. |
| Supply voltage | 2.25–5.5 V per side - interoperable with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive environments per AEC-Q100 Grade 1. |
| CMTI | ≥100 kV/µs - suppresses false triggering in high-dV/dt inverter gate drive circuits. |
| Fail-safe mode | Selectable default-high or default-low - ensures safe state during MCU reset or supply brownout. |
Pinout & Package
SI86SL40FC-IS1R uses a wide-body SOIC-16 (WB SOIC-16) package with creepage/clearance ≥8.3 mm, supporting 6000 VRMS working voltage. Pinout matches Si86S64x/L4x family (Figure 2, datasheet p.2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Side A power supply | Supplies isolated controller-side logic; requires 0.1 µF + 10 µF local bypass. |
| A1–A4 | Side A digital I/O | Four unidirectional input channels; Schmitt-trigger inputs reject >36 ns noise glitches. |
| VDD2, GND2 | Side B power supply | Supplies isolated peripheral-side logic; independent biasing enables level shifting. |
| B1–B4 | Side B digital I/O | Four unidirectional output channels; 50 Ω nominal output impedance for controlled-impedance routing. |
| SMb | Sleep mode control | Active-low pin enabling 750 µA/side ultra-low-power state; retains isolation barrier readiness. |
| NC | No connect | Pins 7 and 15 are internally unused; must remain floating or grounded per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift of optocouplers; no start-up delay or calibration required. |
| Reinforced safety certification | UL 1577 (6000 VRMS), VDE 60747-17, CSA 62368-1 - enables single-component isolation in medical and EV traction systems. |
| Tri-state outputs with EN | EN1/EN2 pins allow synchronized output disable across all channels - essential for bus arbitration in isolated CAN transceivers. |
| Schmitt-trigger + CMOS inputs | Input hysteresis ≥0.15 × VDD - rejects EMI-induced ringing on long traces in motor control PCBs. |
| Sleep mode (SMb) | Reduces quiescent current to 750 µA/side while maintaining isolation readiness - extends standby time in battery-powered OBCs. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
Use Scenario: Isolating cell voltage monitoring ICs from MCU in 400–800 V battery packs. IC Role / Device Role / Timing Role: Transmits precision ADC readings across isolation barrier with <10 ns skew between channels. Use Value: Enables simultaneous sampling of up to 4 cell groups while meeting IEC 61000-4-5 surge immunity and reinforced insulation requirements. | Use Scenario: Isolating gate driver signals for SiC MOSFET half-bridges in EV powertrain inverters. IC Role / Device Role / Timing Role: Delivers PWM edge timing with <3.5 ns pulse width distortion to prevent shoot-through. Use Value: Supports 100+ kHz switching frequencies with guaranteed CMTI >100 kV/µs in high-dV/dt environments. |
| Onboard Charger (OBC) | Industrial PLC Analog I/O Module |
Use Scenario: Isolating communication between AC/DC PFC controller and DC/DC LLC controller in bi-directional OBCs. IC Role / Device Role / Timing Role: Carries isolated UART or SPI commands with fail-safe default-low output during power loss. Use Value: Prevents uncontrolled charging/discharging during MCU brownout by forcing gate drivers into safe-off state. | Use Scenario: Isolating 4–20 mA current loop transmitters from host processor in hazardous-area PLCs. IC Role / Device Role / Timing Role: Provides galvanic separation for analog sensor signal conditioning circuitry. Use Value: Meets IEC 61010-1 creepage requirements (≥8.3 mm) without external isolation transformers or optos. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2402BRWZ | 4-channel, 25 Mbps max data rate; 2.5 kVRMS isolation; no AEC-Q100 qualification. | Suitable for industrial automation but not automotive-grade BMS or OBC due to lower isolation and no automotive qualification. | Choose ADUM2402BRWZ only if system-level safety certification allows basic (not reinforced) insulation and data rate ≤25 Mbps. |
| ISO7741FDWR | 4-channel, 100 Mbps max data rate; 5 kVRMS isolation; AEC-Q100 Grade 2 (–40 to 105 °C). | Supports automotive ambient temperatures up to 105 °C only-not full 125 °C range required for under-hood traction inverters. | Select ISO7741FDWR when cost sensitivity outweighs need for 6000 VRMS rating and extended temperature operation. |
Compared with ADUM2402BRWZ and ISO7741FDWR, SI86SL40FC-IS1R delivers higher isolation (6000 VRMS), wider temperature range (–40 to 125 °C), and full AEC-Q100 Grade 1 compliance-making it the only option qualified for primary isolation in 800 V EV battery systems and traction inverters.
Availability
SI86SL40FC-IS1R is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and onboard chargers requiring stable component supply across automotive production lifecycles.
Supply support for SI86SL40FC-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/Lxx family-including SI86SL40FC-IS1R-is engineered for high-reliability automotive and industrial isolation, emphasizing reinforced safety certification, low-power operation, and RF-based noise immunity over legacy optocoupler architectures.
FAQ
What is the isolation voltage rating of the SI86SL40FC-IS1R and which safety standards does it meet?
The SI86SL40FC-IS1R provides 6000 VRMS reinforced isolation for 1 minute per UL 1577 and complies with VDE 60747-17, CSA 62368-1, and CQC GB4943.1. These certifications validate its use in safety-critical automotive applications such as battery management systems and traction inverters where reinforced insulation is mandated.
Does the SI86SL40FC-IS1R require external components for stable operation?
Yes, the SI86SL40FC-IS1R requires 0.1 µF and 10 µF bypass capacitors on both VDD1–GND1 and VDD2–GND2 pairs, placed as close as possible to the package pins. These capacitors stabilize supply rails and suppress high-frequency noise-critical for maintaining 100 kV/µs CMTI performance in noisy inverter environments.
How does the SMb pin function in the SI86SL40FC-IS1R, and what power savings does it enable?
The SMb pin is an active-low sleep mode control that reduces SI86SL40FC-IS1R's quiescent current to 750 µA per side while keeping one isolation channel active to monitor SMb status. This enables rapid wake-up (<1 µs) and extends standby time in battery-powered onboard chargers without sacrificing isolation readiness.
What is the default output behavior of the SI86SL40FC-IS1R during power loss on the input side?
The SI86SL40FC-IS1R offers selectable fail-safe output states at ordering: default-high or default-low. When VDD1 is unpowered but VDD2 remains active, outputs hold the selected default state-ensuring predictable gate driver behavior during MCU reset or brownout events in automotive power systems.
Can the SI86SL40FC-IS1R be used in SPI-isolated interfaces, and how many channels does it support for this purpose?
The SI86SL40FC-IS1R is not a dedicated SPI isolator like Si86SS41-it provides four general-purpose unidirectional channels. For SPI isolation, two channels carry MOSI/MISO and two carry SCLK/CS, requiring external direction control logic. Dedicated SPI variants (e.g., Si86SS41) integrate protocol-aware routing and are preferred for compact SPI designs.
SI86SL40FC-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:
- 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
SI86SL40FC-IS1R FAQ
1.How can I place an order for SI86SL40FC-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI86SL40FC-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 SI86SL40FC-IS1R reliable?
The price and inventory of SI86SL40FC-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI86SL40FC-IS1R is usually 5 days.
3.What payment methods are accepted for SI86SL40FC-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI86SL40FC-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI86SL40FC-IS1R?
SI86SL40FC-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI86SL40FC-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 SI86SL40FC-IS1R?
For technical support, including SI86SL40FC-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI86SL40FC-IS1R requirements.
6.How does Aetrix verify that SI86SL40FC-IS1R is sourced from the original manufacturer or authorized distributors?
All SI86SL40FC-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 SI86SL40FC-IS1R meets industry standards.
7.What is the process for return or replacement of SI86SL40FC-IS1R?
All SI86SL40FC-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI86SL40FC-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 SI86SL40FC-IS1R part is unused and in its original packaging.
Return procedure for SI86SL40FC-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI86SL40FC-IS1R 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
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
