My Inquiry
My Account
Skyworks Solutions Inc. SI8620BC-AS
- Part No.:
- SI8620BC-AS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8620BC-AS.pdf
- Description:
- AUTOMOTIVE 3.75 KV 2-CHANNEL DIG
- Quantity:
- Payment:
- Shipping:
Inventory:4,312
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI8620BC-AS from Skyworks Solutions is a dual-channel, ultra-low-power digital isolator with 5 kVRMS reinforced isolation, 150 Mbps data rate, <10 ns propagation delay, and Schmitt-trigger inputs for high noise immunity-used in isolated ADC/DAC interfaces and motor control gate drivers.
For engineers reviewing the SI8620BC-AS datasheet, SI8620BC-AS pinout, SI8620BC-AS application, or SI8620BC-AS equivalent, this page delivers verified specifications, WB SOIC-16 package details, fail-safe mode configuration, CMTI of 50 kV/µs, and automotive-grade AEC-Q100 qualification for high-reliability industrial and EV power systems.
Technical Context
The SI8620BC-AS implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust operation without external components beyond 0.1 µF bypass capacitors per side. Its dual independent channels support bidirectional signal isolation with side-specific undervoltage lockout (UVLO) monitoring.
It features selectable fail-safe output state (default high), operates from 2.5–5.5 V on both sides, maintains stable timing across –40 to 125 °C, and achieves 0.5 ns channel-channel skew and 2 ns propagation delay skew-critical for synchronized sampling in isolated feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 150 Mbps - supports high-speed serial interfaces like SPI, RS-485, and isolated CAN FD transceivers. |
| Isolation rating | 5 kVRMS reinforced - certified to VDE 0884-10 and UL 1577, enabling use in mains-connected industrial equipment. |
| Propagation delay | 5.0–14 ns - ensures tight timing control in real-time motor control and digital power converter feedback paths. |
| Supply voltage | 2.5–5.5 V per side - allows interoperability with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| CMTI | 50 kV/µs - rejects fast common-mode transients in high-dV/dt environments like IGBT/SiC gate driver circuits. |
| Fail-safe mode | Default-high output - guarantees known logic state during input-side power loss, preventing undefined gate drive conditions. |
| Operating temperature | –40 to 125 °C - qualified for under-hood automotive applications including onboard chargers and traction inverters. |
Pinout & Package
SI8620BC-AS is supplied in a wide-body SOIC-16 (WB SOIC-16) package with 8.3 mm creepage/clearance, supporting reinforced insulation up to 5 kVRMS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND1 (Pins 1, 7) | Side 1 ground reference | Provides low-impedance return path for input-side logic; must be decoupled with 0.1 µF capacitor to VDD1. |
| VDD1 (Pin 3) | Side 1 power supply | Supplies 2.5–5.5 V to input-side transmitter; requires local bypass capacitor placement within 2 mm. |
| A1 (Pin 4), A2 (Pin 5) | Side 1 digital I/O | Two independent input channels with Schmitt-trigger inputs; tolerate slow-rising signals and reject EMI. |
| GND2 (Pins 9, 16) | Side 2 ground reference | Isolated return for output-side circuitry; must be physically separated from GND1 per safety spacing rules. |
| VDD2 (Pin 14) | Side 2 power supply | Supplies 2.5–5.5 V to output-side receiver; independent of VDD1 enables level-shifting functionality. |
| B1 (Pin 13), B2 (Pin 12) | Side 2 digital I/O | Two isolated output channels with 50 Ω nominal output impedance-requires controlled-impedance PCB routing above 25 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates optical degradation and magnetic coupling issues-enables 60-year life at rated working voltage with no initialization sequence. |
| Selectably fail-safe output | Default-high ordering option (denoted by "B" in part number) ensures defined logic state during VDD1 loss-prevents unintended actuation in safety-critical systems. |
| Ultra-low power at 100 Mbps | 2.1 mA (VDD1) + 8.9 mA (VDD2) at 5 V - reduces thermal load in densely packed power modules and extends battery runtime in portable test equipment. |
| Precision timing performance | 0.5 ns channel-channel skew and 2 ns propagation delay skew - enables simultaneous sampling across dual isolated ADC channels in motor phase current sensing. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications including onboard chargers and battery management systems-supports AIAG PPAP documentation and IMDS compliance. |
Applications
| Motor Control Gate Driver Isolation | Isolated ADC/DAC Interface |
|---|---|
Use Scenario: Isolating PWM signals and fault feedback between MCU and IGBT/SiC gate drivers in 3-phase inverters. IC Role / Device Role / Timing Role: Dual-channel isolator providing independent high-side/low-side gate drive signal isolation with sub-10 ns propagation delay and fail-safe default-high output. Use Value: Prevents shoot-through during power-up/down and maintains timing integrity across switching frequencies up to 100 kHz. |
Use Scenario: Isolating analog sensor data paths in high-voltage battery monitoring systems. IC Role / Device Role / Timing Role: Transmitting digitized current/voltage measurements from isolated ADCs to system controller while blocking ground loops. Use Value: Enables accurate 16-bit measurement resolution by rejecting >50 kV/µs common-mode transients induced by switching converters. |
| Onboard Charger (OBC) Communication | Traction Inverter Control Interface |
Use Scenario: Isolating CAN or SPI communication between AC/DC stage controller and DC/DC stage in EV onboard chargers. IC Role / Device Role / Timing Role: Dual-channel isolator bridging control domains with reinforced 5 kVRMS isolation and AEC-Q100 qualification. Use Value: Meets IEC 62368-1 reinforced insulation requirements and supports 150 Mbps data rates for real-time telemetry and fault reporting. |
Use Scenario: Isolating torque command signals and rotor position feedback in electric vehicle traction inverters. IC Role / Device Role / Timing Role: Providing galvanic separation between MCU and isolated gate driver ICs with precise channel-to-channel timing alignment. Use Value: Achieves <2.5 ns channel skew to synchronize three-phase PWM generation and prevent torque ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2201BRWZ | 2.5 kVRMS basic isolation; 100 Mbps max; SOIC-8 package; no AEC-Q100 qualification | Limited to non-safety-critical industrial automation; not suitable for automotive or reinforced insulation systems | Choose when cost sensitivity outweighs isolation rating and automotive compliance requirements. |
| ISO6721FDWR | 5 kVRMS reinforced; 50 Mbps max; SOIC-8; 2.25–5.5 V supply; CMTI = 25 kV/µs | Lower data rate limits use in high-speed SPI or CAN FD; smaller footprint but reduced noise immunity | Prefer for space-constrained designs where 150 Mbps and 50 kV/µs CMTI are not required. |
Compared with ADUM2201BRWZ and ISO6721FDWR, SI8620BC-AS uniquely combines 150 Mbps speed, 5 kVRMS reinforced isolation, AEC-Q100 Grade 1, and default-high fail-safe mode-making it the only option qualified for high-performance EV traction inverter control and isolated high-speed data acquisition.
Availability
SI8620BC-AS is available at Aetrix Electronics and suitable for industrial automation systems, medical electronics, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for SI8620BC-AS 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 high-performance analog semiconductors, specializing in RF, timing, and isolation solutions for wireless, automotive, and industrial markets.
The Si86xx family was designed specifically for high-reliability galvanic isolation in demanding power conversion and automotive electrification applications-emphasizing low power, precision timing, and safety certification.
FAQ
What isolation rating does the SI8620BC-AS support?
The SI8620BC-AS supports 5 kVRMS reinforced isolation, certified to UL 1577, VDE 0884-10, and IEC 62368-1 standards. This rating applies to the WB SOIC-16 package variant and enables use in mains-connected equipment and automotive high-voltage systems where reinforced insulation is mandated.
Does the SI8620BC-AS require external components for operation?
The SI8620BC-AS requires only two 0.1 µF bypass capacitors-one between VDD1 and GND1, and another between VDD2 and GND2-placed within 2 mm of the respective pins. No pull-up/pull-down resistors, initialization firmware, or external clock sources are needed due to its self-contained RF modulation architecture.
How does the fail-safe mode function in the SI8620BC-AS?
The SI8620BC-AS is ordered with default-high fail-safe mode (indicated by "B" in the part number). When VDD1 is unpowered but VDD2 remains active, outputs B1 and B2 remain logic high-ensuring predictable behavior in gate driver or enable-line applications during input-side brownout conditions.
Is the SI8620BC-AS qualified for automotive applications?
Yes, the SI8620BC-AS is AEC-Q100 Grade 1 qualified (–40 to 125 °C), with AIAG-compliant PPAP documentation and IMDS/CAMDS support. It is explicitly listed for automotive applications including onboard chargers, battery management systems, and traction inverters in the official Skyworks datasheet.
What is the maximum data rate supported by the SI8620BC-AS?
The SI8620BC-AS supports data rates up to 150 Mbps across both channels simultaneously. This capability is validated in the datasheet's eye diagram (Figure 3) and timing specifications table, making it suitable for high-speed isolated SPI, RS-485, and digital encoder interfaces.
SI8620BC-AS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 2/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- 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:
- 2.5V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SI8620BC-AS FAQ
1.How can I place an order for SI8620BC-AS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8620BC-AS 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 SI8620BC-AS reliable?
The price and inventory of SI8620BC-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8620BC-AS is usually 5 days.
3.What payment methods are accepted for SI8620BC-AS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8620BC-AS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8620BC-AS?
SI8620BC-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8620BC-AS 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 SI8620BC-AS?
For technical support, including SI8620BC-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8620BC-AS requirements.
6.How does Aetrix verify that SI8620BC-AS is sourced from the original manufacturer or authorized distributors?
All SI8620BC-AS 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 SI8620BC-AS meets industry standards.
7.What is the process for return or replacement of SI8620BC-AS?
All SI8620BC-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI8620BC-AS, 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 SI8620BC-AS part is unused and in its original packaging.
Return procedure for SI8620BC-AS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8620BC-AS 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…
