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Skyworks Solutions Inc. SI8650EB-AUR
- Part No.:
- SI8650EB-AUR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
SI8650EB-AUR.pdf
- Description:
- AUTOMOTIVE 2.5 KV 5 FORWARD CHAN
- Quantity:
- Payment:
- Shipping:
Inventory:3,612
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Product details
Overview
SI8650EB-AUR from Skyworks is a five-channel, unidirectional digital isolator with 5 kVRMS reinforced insulation, Schmitt-trigger inputs, and selectable high-fail-safe output mode. It operates from 2.5–5.5 V on both sides, supports up to 150 Mbps data rate, achieves <10 ns propagation delay, and is qualified to AEC-Q100 Grade 0 (–40°C to +125°C) for automotive battery management and traction inverter systems.
For engineers reviewing the SI8650EB-AUR datasheet, SI8650EB-AUR pinout, SI8650EB-AUR application, or SI8650EB-AUR equivalent, this page delivers verified specifications, fail-safe behavior under power loss, SOIC-16 wide-body package details, and validated automotive-grade alternatives - all critical for high-reliability isolated signal transmission in EV and industrial power systems.
Technical Context
The SI8650EB-AUR implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture provides deterministic timing with channel-to-channel skew ≤2.5 ns and pulse width distortion ≤4.5 ns.
All five channels are input-only on VDD1 side and output-only on VDD2 side, with a single enable (EN2) controlling all outputs. The device features undervoltage lockout (UVLO) on both sides, 50 kV/µs common-mode transient immunity, and failsafe default-high output state during VDD1 loss - confirmed by ordering code "EB" and automotive suffix "-A".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 5 unidirectional channels (VDD1 → VDD2 only) |
| Max Data Rate | 150 Mbps - supports high-speed CAN FD, SPI, and PWM feedback in inverters |
| Propagation Delay | 5–13 ns - enables sub-100 ns loop timing in motor control and BMS |
| Isolation Rating | 5 kVRMS reinforced - certified to UL, VDE, CQC, and IEC 60601-1 for medical and EV applications |
| Supply Voltage | 2.5–5.5 V per side - interoperable with 3.3 V microcontrollers and 5 V gate drivers |
| Fail-Safe Output | Default-high (EB variant) - ensures safe shutdown of downstream logic during input-side power loss |
| Operating Temp | –40°C to +125°C - meets AEC-Q100 Grade 0 for under-hood automotive use |
| CMTI | ≥35 kV/µs - maintains signal integrity in noisy high-dv/dt environments like traction inverters |
Pinout & Package
SI8650EB-AUR is housed in a RoHS-compliant 16-pin wide-body SOIC (WB SOIC-16) package with 8.3 mm creepage/clearance, supporting reinforced insulation up to 5 kVRMS. Pin assignments follow standard Si8650 layout with dedicated VDD1/GND1 and VDD2/GND2 pairs, five input pins (A1–A5), five output pins (B1–B5), one enable (EN2), and one no-connect (NC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1–A5 | Input signals (VDD1 side) | Accept 2.5–5.5 V logic; Schmitt-triggered for >0.4 V hysteresis and noise rejection |
| B1–B5 | Isolated output signals (VDD2 side) | Drive 50 Ω loads; tri-state when EN2 = L; default-high during VDD1 loss |
| EN2 | Output enable control (VDD2 side) | Active-high; disables all Bx outputs into high-impedance state when low |
| VDD1, GND1 | Input-side power supply | Power domain for A1–A5 and internal transmitter; UVLO threshold 2.24 V (typ) |
| VDD2, GND2 | Output-side power supply | Power domain for B1–B5, EN2, and receiver; independent operation enables level shifting |
| NC | No-connect | Not internally bonded; may be left floating, tied to VDD2, or grounded |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation barrier | Eliminates LED aging and temperature drift; enables 60-year lifetime at rated voltage |
| Selectably high-fail-safe output | "EB" ordering code guarantees default-high outputs during VDD1 brownout - critical for safe system reset |
| Ultra-low power at 100 Mbps | 5.5 mA per channel @ 5 V / 100 Mbps - reduces thermal load in dense BMS PCB layouts |
| Automotive qualification | AEC-Q100 Grade 0 + AIAG PPAP support - fulfills OEM requirements for on-board chargers and traction inverters |
| High CMTI & noise immunity | 50 kV/µs common-mode transient immunity + Schmitt inputs - sustains operation in 1000 V/µs EMI environments |
| Wide supply range | 2.5–5.5 V on both sides - interfaces directly with 3.3 V MCUs and 5 V isolated gate drivers without level shifters |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and pack-level communication between high-voltage battery stack and MCU. IC Role / Device Role / Timing Role: Five-channel unidirectional isolator transmitting ADC readouts and fault flags across 400–800 V DC bus. Use Value: 5 kVRMS reinforced insulation and AEC-Q100 Grade 0 rating ensure functional safety compliance (ISO 26262 ASIL-C) and long-term reliability in harsh under-hood conditions. |
Use Scenario: Transmitting PWM gate drive signals and current-sense feedback from inverter control board to IGBT/SiC half-bridge modules. IC Role / Device Role / Timing Role: High-speed, low-skew isolator delivering synchronized switching commands with <2.5 ns channel-to-channel skew. Use Value: 150 Mbps capability and 5 ns minimum pulse width support precise dead-time control and fast fault response (<100 ns) in 10–20 kHz switching inverters. |
| On-Board Charger (OBC) | Industrial PLC I/O Module |
|
Use Scenario: Isolating AC grid sensing, DC link voltage monitoring, and MCU command signals in bidirectional OBC topologies. IC Role / Device Role / Timing Role: Fail-safe isolator ensuring default-high status reporting during primary-side power interruption to prevent unsafe charging states. Use Value: EB-coded default-high output prevents inadvertent gate turn-on during brownout, meeting UL 62368-1 and IEC 61851-1 safety requirements. |
Use Scenario: Providing isolated digital input conditioning for 24 V DC field sensors and isolated output driving for solenoid/relay control in factory automation. IC Role / Device Role / Timing Role: Five-channel isolator replacing optocouplers in modular I/O cards requiring high channel density and long service life. Use Value: 60-year lifetime and 50 kV/µs CMTI eliminate maintenance cycles and improve uptime in continuous-operation industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8650ED-AS | Same 5-channel, 5 kVRMS, default-high, but industrial-grade (–I suffix); lacks AEC-Q100 qualification and PPAP documentation | Suitable for non-automotive industrial inverters or medical equipment where automotive traceability is not required | Choose SI8650ED-AS for cost-sensitive industrial designs without automotive certification mandates |
| ADUM141E0BRZ | 4-channel, 3.75 kVRMS, default-high, 150 Mbps, but uses iCoupler magnetic isolation and requires external VDD bypassing | Limited to four channels; lower isolation rating restricts use in 800 V EV architectures | Consider ADUM141E0BRZ only when channel count and isolation voltage requirements are relaxed |
Compared with SI8650EB-AUR, SI8650ED-AS offers identical electrical performance but omits automotive process controls and documentation, while ADUM141E0BRZ trades one channel and reduced isolation for magnetic isolation topology - making SI8650EB-AUR the sole option meeting full AEC-Q100 Grade 0, 5-channel, and 5 kVRMS requirements simultaneously.
Availability
SI8650EB-AUR is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and on-board chargers requiring stable component supply, automotive-grade traceability, and long-term lifecycle support.
Supply support for SI8650EB-AUR 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 analog and mixed-signal semiconductors, specializing in RF, timing, and isolation technologies for wireless, automotive, and industrial markets.
The Si865x family was designed specifically for high-reliability, high-speed digital isolation in automotive electrification and industrial power conversion - emphasizing AEC-Q100 compliance, reinforced insulation, and ultra-low power at multi-Mbps rates.
FAQ
What does the "EB" in SI8650EB-AUR signify?
The "EB" in SI8650EB-AUR denotes a five-channel, input-side-only configuration with default-high fail-safe output behavior. When VDD1 is unpowered but VDD2 remains active, all B1–B5 outputs assert logic high - a critical safety feature for automotive systems like battery disconnect control. This ordering code is explicitly defined in Skyworks' Table 1.1 and confirmed for SI8650EB-AUR in the Automotive OPN column.
Is SI8650EB-AUR pin-compatible with other Si8650 variants?
Yes, SI8650EB-AUR shares identical pinout and WB SOIC-16 package with all Si8650x variants, including SI8650BB-AU and SI8650ED-AS. Pin functions (A1–A5, B1–B5, EN2, VDD1/GND1, VDD2/GND2, NC) are consistent across the family. However, functional differences - such as default output state (EB vs BB) and grade (A vs I) - require verification in system-level validation.
Does SI8650EB-AUR support 2.5 V operation on both sides?
Yes, SI8650EB-AUR operates across 2.5–5.5 V on both VDD1 and VDD2 supplies. At 2.5 V, typical supply current is 1.5 mA per channel at 1 Mbps and 3.5 mA per channel at 100 Mbps - enabling direct interface with low-voltage microcontrollers and reducing overall system power consumption in thermally constrained automotive modules.
How does the enable pin (EN2) function in SI8650EB-AUR?
In SI8650EB-AUR, EN2 is an active-high enable input on the VDD2 side that controls all five B1–B5 outputs. When EN2 = L, outputs enter high-impedance state; when EN2 = H or NC, outputs follow A1–A5 inputs. Internal 2 µA pull-up allows EN2 to float if unused, but Skyworks recommends tying it to VDD2 or GND in noisy environments to prevent spurious tri-state transitions.
What safety certifications apply to SI8650EB-AUR?
SI8650EB-AUR carries UL 1577 (5000 VRMS, 1 min), VDE 0884-10 (reinforced), CSA Component Acceptance Notice 5A, CQC GB4943.1, and IEC 62368-1/60601-1 certifications. These approvals are specific to the 5 kVRMS wide-body SOIC package and validate its use in reinforced insulation barriers for EV traction systems and medical isolation applications.
SI8650EB-AUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 5
- Inputs - Side 1/Side 2:
- 5/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- 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-QSOP
SI8650EB-AUR FAQ
1.How can I place an order for SI8650EB-AUR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8650EB-AUR 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 SI8650EB-AUR reliable?
The price and inventory of SI8650EB-AUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8650EB-AUR is usually 5 days.
3.What payment methods are accepted for SI8650EB-AUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8650EB-AUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8650EB-AUR?
SI8650EB-AUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8650EB-AUR 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 SI8650EB-AUR?
For technical support, including SI8650EB-AUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8650EB-AUR requirements.
6.How does Aetrix verify that SI8650EB-AUR is sourced from the original manufacturer or authorized distributors?
All SI8650EB-AUR 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 SI8650EB-AUR meets industry standards.
7.What is the process for return or replacement of SI8650EB-AUR?
All SI8650EB-AUR units undergo pre-shipment inspection (PSI). If there is an issue with SI8650EB-AUR, 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 SI8650EB-AUR part is unused and in its original packaging.
Return procedure for SI8650EB-AUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8650EB-AUR 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
-
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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