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Skyworks Solutions Inc. SI8652BB-AUR
- Part No.:
- SI8652BB-AUR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
SI8652BB-AUR.pdf
- Description:
- AUTOMOTIVE 2.5 KV 3 FORWARD & 2
- Quantity:
- Payment:
- Shipping:
Inventory:1,894
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Product details
Overview
SI8652BB-AUR from Skyworks is a five-channel, automotive-grade digital isolator with 3 input channels on VDD1 side and 2 output channels on VDD2 side, supporting up to 150 Mbps data rate, <10 ns propagation delay, and 2.5 kVRMS isolation. It features Schmitt-trigger inputs, tri-state outputs with enable control, and fail-safe low-default output state for use in battery management systems and traction inverters.
For engineers reviewing the SI8652BB-AUR datasheet, SI8652BB-AUR pinout, SI8652BB-AUR application, or SI8652BB-AUR equivalent, this page delivers verified electrical specs, QSOP-16 package details, AEC-Q100 qualification evidence, and direct alternative part comparisons for high-reliability automotive and industrial isolation design.
Technical Context
The SI8652BB-AUR implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its dual-enable architecture (EN1 on VDD1 side, EN2 on VDD2 side) independently controls A4/A5 and B1–B3 outputs, supporting multiplexed signal routing and clock synchronization in isolated domains.
It operates across –40 °C to +125 °C with stable timing: 0.5 ns channel-channel skew, 2 ns propagation delay skew, and 50 kV/µs common-mode transient immunity. The device uses internal 2 µA pull-ups on enable pins and supports 2.5–5.5 V dual-supply operation with undervoltage lockout thresholds at 1.95 V (rising) and 1.88 V (falling).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels & Direction | 5-channel: 3 unidirectional inputs (A1–A3), 2 unidirectional outputs (A4–A5) on VDD1 side; 3 unidirectional outputs (B1–B3) on VDD2 side |
| Max Data Rate | 150 Mbps - enables real-time CAN FD, SPI, and PWM signal isolation in EV powertrain control |
| Propagation Delay | 5–13 ns (typ. 8 ns) - ensures sub-10 ns timing integrity for gate driver feedback loops |
| Isolation Rating | 2.5 kVRMS - UL, CSA, VDE, and CQC certified for reinforced insulation in 400–800 V battery systems |
| Supply Voltage | 2.5–5.5 V per side - supports mixed-voltage domain interfacing (e.g., 3.3 V MCU to 5 V gate driver) |
| Fail-Safe Default | Low-output during VDD1 loss - prevents unintended activation of downstream power stages in BMS fault conditions |
| Temp Range | –40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and battery-pack mounting |
Pinout & Package
SI8652BB-AUR is housed in a RoHS-compliant, lead-free QSOP-16 package (5.3 mm × 10.2 mm, 1.0 mm height), optimized for high-density automotive PCB layouts and compatible with standard reflow profiles (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side power supply | Supplies 2.5–5.5 V to input-side logic and channel transmitters; requires 0.1 µF bypass capacitor to GND1 |
| GND1 | Input-side ground reference | Return path for VDD1; must be separated from GND2 by ≥8 mm creepage for 2.5 kVRMS compliance |
| A1–A3 | Input signals (VDD1 side) | Schmitt-trigger buffered inputs accepting 0–VDD1 logic; tolerate ±10 µA leakage and 0.44 V hysteresis |
| EN1 | Enable for A4/A5 outputs | Active-high control on VDD1 side; internally pulled up to VDD1 (2 µA); drives A4/A5 into Hi-Z when low |
| A4, A5 | Output signals (VDD1 side) | Tri-state CMOS outputs with 50 Ω nominal impedance; default low during VDD1 loss per ordering option |
| VDD2 | Output-side power supply | Supplies 2.5–5.5 V to output-side receivers and drivers; requires separate 0.1 µF bypass to GND2 |
| GND2 | Output-side ground reference | Isolated return for VDD2; forms safety barrier with GND1; defines common-mode transient immunity path |
| B1–B3 | Output signals (VDD2 side) | CMOS outputs with VOH ≥ VDD2–0.4 V and VOL ≤ 0.4 V at 4 mA load; enabled by EN2 |
| EN2 | Enable for B1–B3 outputs | Active-high control on VDD2 side; internally pulled up to VDD2 (2 µA); disables B1–B3 into Hi-Z when low |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates LED aging and temperature drift; achieves 60-year life at rated working voltage with no start-up initialization |
| Tri-state outputs with dual enable | EN1 and EN2 provide independent, side-specific output disable-critical for bus arbitration and fault containment in multi-controller systems |
| Fail-safe low-default mode | Guarantees B1–B3 and A4/A5 drive low during VDD1 loss, preventing false triggering of IGBTs or MOSFETs in power stage protection |
| High CMTI immunity | 50 kV/µs common-mode transient immunity ensures reliable operation during fast-switching events in 800 V inverters |
| AEC-Q100 Grade 1 qualification | Validated for automotive use with zero-defect manufacturing flow, AIAG-compliant PPAP, and IMDS/CAMDS material documentation |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADC interfaces and pack contactor control signals in 400–800 V EV battery packs. IC Role / Device Role / Timing Role: SI8652BB-AUR provides galvanic separation between low-voltage MCU and high-voltage sensing/control domains while maintaining 150 Mbps SPI timing for real-time cell balancing. Use Value: Enables safe, high-speed communication across the isolation barrier without compromising diagnostic latency or fault response time. |
Use Scenario: Transmitting PWM gate drive signals and current-sense feedback from motor controller ICs to IGBT/SiC modules in electric drivetrains. IC Role / Device Role / Timing Role: SI8652BB-AUR delivers sub-10 ns propagation delay and 0.5 ns channel skew to synchronize multiple half-bridge drivers with precise dead-time control. Use Value: Reduces switching losses and prevents shoot-through by preserving nanosecond-level timing integrity across isolated power stages. |
| On-Board Charger (OBC) | Industrial Motor Drive |
|
Use Scenario: Isolating digital control signals between AC/DC PFC stage and DC/DC LLC converter in bidirectional OBCs. IC Role / Device Role / Timing Role: SI8652BB-AUR routes enable, fault, and status signals across 2.5 kVRMS barrier while supporting 100+ Mbps UART and GPIO traffic. Use Value: Maintains functional safety (IEC 62368-1, 60601-1) and enables compact, high-efficiency OBC designs with minimal BOM overhead. |
Use Scenario: Interfacing PLC I/O modules with isolated fieldbus transceivers and servo amplifier feedback circuits in factory automation. IC Role / Device Role / Timing Role: SI8652BB-AUR isolates encoder quadrature signals and digital I/O in harsh EMI environments with 50 kV/µs CMTI immunity. Use Value: Prevents ground-loop noise corruption and ensures deterministic motion control loop timing in 24/7 production lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8652BB-BUR | Industrial-grade (–I suffix), identical electrical specs and pinout; lacks AEC-Q100 qualification and automotive PPAP documentation | Approved for non-automotive industrial use only; not suitable for OEM automotive programs requiring AIAG PPAP or IMDS reporting | Select SI8652BB-BUR for cost-sensitive industrial designs where automotive qualification is unnecessary |
| ADUM141D1BRZ | 4-channel, 150 Mbps isolator with 11 ns max propagation delay; single enable; 2.5 kVRMS rating; SOIC-16 narrow body | Lacks dual-enable architecture and fail-safe low-default mode; requires external pull-downs for safe power-loss behavior | Choose ADUM141D1BRZ only if channel count reduction and simplified enable control are acceptable trade-offs |
Compared with SI8652BB-BUR, the SI8652BB-AUR adds automotive process controls and documentation without electrical compromise; versus ADUM141D1BRZ, it provides superior channel flexibility, fail-safe defaults, and higher CMTI-making it optimal for safety-critical EV subsystems.
Availability
SI8652BB-AUR is available at Aetrix Electronics and suitable for battery management systems, traction inverters, on-board chargers, and industrial motor drives requiring stable component supply across automotive and industrial lifecycles.
Supply support for SI8652BB-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 semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies for high-performance wireless and power systems.
The SI865x family was designed specifically for automotive and industrial isolation applications demanding ultra-low power, high-speed data transfer, and long-term reliability under extreme thermal and EMI stress.
FAQ
What is the isolation rating and safety certification status of SI8652BB-AUR?
The SI8652BB-AUR is rated for 2.5 kVRMS isolation and certified to UL 1577, CSA Component Notice 5A, VDE 0884-10, and CQC GB4943.1 standards. It meets reinforced insulation requirements per IEC 62368-1 and IEC 60601-1, making it suitable for medical and EV battery applications where double insulation is mandated. All certifications apply directly to the SI8652BB-AUR part number.
Does SI8652BB-AUR support mixed supply voltages on VDD1 and VDD2 sides?
Yes, SI8652BB-AUR supports independent 2.5–5.5 V operation on both VDD1 and VDD2. For example, it can interface a 3.3 V microcontroller (VDD1 = 3.3 V) with a 5 V gate driver (VDD2 = 5 V) without level-shifting circuitry. The device maintains full timing specifications-including 150 Mbps data rate and <13 ns propagation delay-across all valid voltage combinations.
How does the fail-safe low-default mode function in SI8652BB-AUR during power loss?
When VDD1 is unpowered (0 V), the SI8652BB-AUR's A4, A5, B1–B3 outputs default to logic low-guaranteed by internal pull-downs configured at manufacture. This behavior prevents unintended activation of downstream power switches during brownout or system reset. The default state is fixed per ordering option and cannot be changed in-circuit.
What is the meaning of the "-AUR" suffix in SI8652BB-AUR?
The "-A" denotes Automotive Grade qualification per AEC-Q100 Grade 1, including zero-defect manufacturing, AIAG-compliant PPAP documentation, and IMDS/CAMDS material reporting. The "R" indicates tape-and-reel packaging. The "U" specifies QSOP-16 package, and "B" indicates 2.5 kVRMS isolation rating. All elements are integral to the SI8652BB-AUR part number definition.
Can SI8652BB-AUR replace SI8652BB-BUR in an existing design?
Yes-SI8652BB-AUR is pin-compatible and electrically identical to SI8652BB-BUR, with identical timing, power, and isolation specs. The only differences are automotive qualification, top marking (N–Z prefix), and documentation support. No PCB or firmware changes are required; however, automotive programs must validate PPAP submission using SI8652BB-AUR-specific data.
SI8652BB-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:
- 3/2
- 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
SI8652BB-AUR FAQ
1.How can I place an order for SI8652BB-AUR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8652BB-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 SI8652BB-AUR reliable?
The price and inventory of SI8652BB-AUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8652BB-AUR is usually 5 days.
3.What payment methods are accepted for SI8652BB-AUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8652BB-AUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8652BB-AUR?
SI8652BB-AUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8652BB-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 SI8652BB-AUR?
For technical support, including SI8652BB-AUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8652BB-AUR requirements.
6.How does Aetrix verify that SI8652BB-AUR is sourced from the original manufacturer or authorized distributors?
All SI8652BB-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 SI8652BB-AUR meets industry standards.
7.What is the process for return or replacement of SI8652BB-AUR?
All SI8652BB-AUR units undergo pre-shipment inspection (PSI). If there is an issue with SI8652BB-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 SI8652BB-AUR part is unused and in its original packaging.
Return procedure for SI8652BB-AUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8652BB-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.
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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.
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ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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