My Inquiry
My Account
Skyworks Solutions Inc. SI8662ED-ASR
- Part No.:
- SI8662ED-ASR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8662ED-ASR.pdf
- Description:
- AUTOMOTIVE 5 KV 4 FORWARD & 2 RE
- Quantity:
- Payment:
- Shipping:
Inventory:2,356
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI8662ED-ASR from Skyworks is a six-channel digital isolator with 4 input channels on VDD1 side and 2 output channels on VDD2 side, rated for 5 kVRMS reinforced isolation in wide-body SOIC-16 package. It supports up to 150 Mbps data rate, achieves <10 ns propagation delay, and operates across –40 to 125 °C with fail-safe high-default output state - used in battery management systems and traction inverters requiring robust galvanic separation.
For engineers reviewing the SI8662ED-ASR datasheet, SI8662ED-ASR pinout, SI8662ED-ASR application, or SI8662ED-ASR equivalent, this page delivers verified specifications, automotive-grade AEC-Q100 qualification, SOIC-16 wide-body layout guidance, and real-world timing performance including 0.5 ns channel-channel skew and 50 kV/µs CMTI - critical for high-noise motor control and isolated power supply designs.
Technical Context
The SI8662ED-ASR implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling deterministic signal transfer without optical or magnetic coupling limitations. Its dual-supply architecture (VDD1/VDD2) supports independent 2.5–5.5 V operation per side with Schmitt-trigger inputs for noise immunity.
It features selectable fail-safe mode (high-default output), undervoltage lockout with 70 mV hysteresis per supply rail, and precise timing control: 1.5 ns typical pulse width distortion and 2 ns propagation delay skew across channels - enabling synchronized multi-channel isolation in safety-critical automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 6 total: 4 inputs on VDD1 side, 2 outputs on VDD2 side - enables asymmetric signal routing in BMS monitoring and gate driver feedback paths. |
| Isolation Rating | 5 kVRMS reinforced insulation (UL, VDE, CQC certified) - meets IEC 62368-1 and IEC 60601-1 requirements for medical and industrial end equipment. |
| Max Data Rate | 150 Mbps - supports high-speed serial communication in CAN FD gateways and isolated ADC interfaces without timing bottlenecks. |
| Propagation Delay | 5–13 ns (typ. 8 ns) - ensures sub-10 ns latency for real-time fault detection in traction inverter control loops. |
| Supply Voltage | 2.5–5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level-shifting. |
| CMTI | 50 kV/µs (min. 35 kV/µs) - rejects fast transients in high-dV/dt environments like SiC/GaN power stages. |
| Fail-Safe Output | Default high (ordering option "ED") - guarantees known logic state during VDD1 loss in battery disconnect monitoring circuits. |
| AEC-Q100 Grade | Qualified to Grade 1 (–40 to 125 °C) - validated for under-hood automotive applications including on-board chargers and DC-DC converters. |
Pinout & Package
SI8662ED-ASR uses a 16-pin wide-body SOIC package (WB SOIC-16) with 8 mm creepage distance, supporting reinforced insulation up to 5 kVRMS. Pin assignments are defined per Skyworks' standard Si866x pinout for 4:2 channel configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side power supply | Supplies 2.5–5.5 V to 4-channel transmitter side; bypassed with 0.1 µF capacitor near pin. |
| GND1 | Input-side ground reference | Return path for VDD1; must be separated from GND2 by ≥8 mm creepage for 5 kVRMS compliance. |
| INA1–INA4 | Input channels (side A) | Accept 0–VDD1 logic signals with Schmitt-trigger thresholds (VT+ = 1.67 V typ., VT– = 1.23 V typ.) for noise margin. |
| VDD2 | Output-side power supply | Supplies 2.5–5.5 V to 2-channel receiver side; independent of VDD1 for true galvanic isolation. |
| GND2 | Output-side ground reference | Return path for VDD2; electrically isolated from GND1; defines secondary-side logic domain. |
| OUTA1–OUTA2 | Output channels (side B) | Drive 50 Ω loads with VOH ≥ VDD2–0.4 V and VOL ≤ 0.4 V at 4 mA; default high during VDD1 loss. |
| NC | No-connect pins | Pins 9, 10, 15, 16 are unused; must remain unconnected per datasheet to maintain isolation integrity. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation barrier | Eliminates LED aging and transformer saturation issues; provides stable timing over temperature and lifetime. |
| Sub-10 ns propagation delay | Enables tight-loop control in motor drives where >100 kHz PWM switching demands minimal isolation latency. |
| 0.5 ns channel-channel skew | Preserves phase alignment across multiple isolated signals - critical for three-phase current sensing in inverters. |
| 50 kV/µs common-mode transient immunity | Rejects fast dV/dt noise from SiC/GaN switches without data corruption or false triggering. |
| Automotive-grade AEC-Q100 qualification | Validated for zero-defect production and PPAP documentation support - required for OEM BMS and OBC designs. |
| Fail-safe high-default output | Ensures safe shutdown state when primary-side power fails - essential for battery isolation contactor control. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
Use Scenario: Isolating cell voltage monitoring and pack-level communication between high-voltage battery stack and low-voltage MCU. IC Role / Device Role / Timing Role: Six-channel isolator routes 4 analog monitor signals and 2 status/control lines across 5 kVRMS barrier with <10 ns latency. Use Value: Enables accurate, synchronized sampling of up to 96 cells while meeting ASIL-B functional safety requirements via reinforced insulation. |
Use Scenario: Providing gate drive isolation and current-sense feedback in 3-phase SiC inverter modules. IC Role / Device Role / Timing Role: Delivers 4 isolated PWM inputs to half-bridge drivers and 2 isolated current-sense outputs to controller. Use Value: Maintains 0.5 ns inter-channel timing alignment to prevent shoot-through and supports 50 kV/µs dV/dt immunity in 1000 V bus systems. |
| On-Board Charger (OBC) | Isolated Switch-Mode Power Supply |
Use Scenario: Isolating digital control signals between AC/DC and DC/DC stages in bidirectional EV chargers. IC Role / Device Role / Timing Role: Transfers 4 control commands (e.g., enable, fault reset) and 2 status flags (e.g., overtemp, overcurrent) across isolation barrier. Use Value: Guarantees fail-safe high output during primary-side brownout to disable power stage safely per ISO 6469-3. |
Use Scenario: Isolating feedback signals (voltage/current) from secondary side to primary-side PWM controller in telecom PSUs. IC Role / Device Role / Timing Role: Routes 4 analog sensor outputs and 2 digital alarm signals across 5 kVRMS barrier with <13 ns max propagation delay. Use Value: Supports UL62368-1 reinforced insulation compliance and eliminates optocoupler drift-related regulation errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6602ARIZ-RL | 5-channel, 5 kVRMS, 25 Mbps max data rate, integrated isolated DC-DC converter | Lacks high-speed capability for >50 Mbps serial links; adds power conversion but increases quiescent current | Prefer when isolated power is needed alongside signal isolation; avoid for 150 Mbps BMS comms. |
| ISO6762FDWR | 6-channel, 5 kVRMS, 100 Mbps, 11 ns max propagation delay, no AEC-Q100 grade | Lower speed and no automotive qualification; higher 15 ns pulse width distortion | Select for industrial-only applications where AEC-Q100 and sub-10 ns timing are not required. |
Compared with ADUM6602ARIZ-RL and ISO6762FDWR, SI8662ED-ASR uniquely combines 150 Mbps speed, AEC-Q100 Grade 1 qualification, and 0.5 ns channel skew - making it the only choice for automotive traction inverter gate drive synchronization and high-rate BMS telemetry.
Availability
SI8662ED-ASR is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and on-board chargers requiring stable component supply with automotive-grade traceability and long-term lifecycle support.
Supply support for SI8662ED-ASR 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 Si866x family was designed specifically for high-reliability automotive and industrial isolation needs - delivering ultra-low-power, high-speed, and AEC-Q100-qualified digital isolation in compact wide-body packages.
FAQ
What is the isolation rating and certification status of SI8662ED-ASR?
SI8662ED-ASR is rated for 5 kVRMS reinforced isolation and certified to UL 1577, VDE 0884-10, CSA 5A, and CQC GB4943.1 standards. It meets IEC 62368-1 and IEC 60601-1 requirements for reinforced insulation, validated for continuous operation at rated working voltage over a 60-year lifetime.
Does SI8662ED-ASR require external components for basic operation?
SI8662ED-ASR requires only two 0.1 µF bypass capacitors - one between VDD1 and GND1, another between VDD2 and GND2 - placed as close as possible to the respective supply pins. No pull-up/down resistors or initialization firmware is needed due to its RF-based architecture and Schmitt-trigger inputs.
How does the fail-safe high-default output function in SI8662ED-ASR?
When VDD1 is unpowered (e.g., during battery disconnect), SI8662ED-ASR's OUTA1 and OUTA2 outputs default to logic high - a behavior defined by the "ED" ordering suffix. This ensures active-high safety signals (e.g., gate enable) deassert cleanly during primary-side power loss, preventing unintended power stage activation.
What is the maximum ambient temperature range supported by SI8662ED-ASR?
SI8662ED-ASR operates across –40 to 125 °C ambient temperature and is qualified to AEC-Q100 Grade 1. Its electrical parameters - including propagation delay, supply current, and CMTI - are guaranteed across this full range, making it suitable for under-hood automotive applications such as on-board chargers and DC-DC converters.
Can SI8662ED-ASR be used in medical equipment requiring IEC 60601-1 compliance?
Yes - SI8662ED-ASR carries VDE and CQC certifications for reinforced insulation per IEC 60601-1, with 5 kVRMS withstand voltage and 8 mm creepage in its wide-body SOIC-16 package. It is deployed in isolated ADC/DAC interfaces and patient-monitoring subsystems where galvanic separation between measurement and processing domains is mandatory.
SI8662ED-ASR 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:
- Yes
- Number of Channels:
- 6
- Inputs - Side 1/Side 2:
- 4/2
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 35kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 13ns, 13ns
- Pulse Width Distortion (Max):
- 4.5ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 2.375V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI8662ED-ASR FAQ
1.How can I place an order for SI8662ED-ASR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8662ED-ASR 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 SI8662ED-ASR reliable?
The price and inventory of SI8662ED-ASR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8662ED-ASR is usually 5 days.
3.What payment methods are accepted for SI8662ED-ASR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8662ED-ASR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8662ED-ASR?
SI8662ED-ASR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8662ED-ASR 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 SI8662ED-ASR?
For technical support, including SI8662ED-ASR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8662ED-ASR requirements.
6.How does Aetrix verify that SI8662ED-ASR is sourced from the original manufacturer or authorized distributors?
All SI8662ED-ASR 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 SI8662ED-ASR meets industry standards.
7.What is the process for return or replacement of SI8662ED-ASR?
All SI8662ED-ASR units undergo pre-shipment inspection (PSI). If there is an issue with SI8662ED-ASR, 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 SI8662ED-ASR part is unused and in its original packaging.
Return procedure for SI8662ED-ASR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8662ED-ASR 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…
