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Skyworks Solutions Inc. SI8652BB-AS1R
- Part No.:
- SI8652BB-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8652BB-AS1R.pdf
- Description:
- AUTOMOTIVE 2.5 KV 3 FORWARD & 2
- Quantity:
- Payment:
- Shipping:
Inventory:1,254
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Product details
Overview
SI8652BB-AS1R from Skyworks is a 3-channel input / 2-channel output ultra-low-power digital isolator with 2.5 kVRMS reinforced isolation, 150 Mbps data rate, <10 ns propagation delay, and fail-safe low-default output state. It enables robust signal transmission across high-voltage barriers in isolated power supplies and motor control systems.
For engineers reviewing the SI8652BB-AS1R datasheet, SI8652BB-AS1R pinout, SI8652BB-AS1R application, or SI8652BB-AS1R equivalent, this page delivers verified electrical specs, SOIC-16 narrow-body package details, AEC-Q100 automotive-grade qualification, and real-world timing performance for safety-critical industrial and automotive designs.
Technical Context
The SI8652BB-AS1R implements RF-based on/off keying across a semiconductor isolation barrier-eliminating startup initialization and delivering superior noise immunity versus optocouplers. Its dual enable inputs (EN1, EN2) independently control tri-state output groups: EN1 manages A4/A5 (input-side outputs), EN2 manages B1/B2/B3 (output-side outputs).
It operates across 2.5–5.5 V on both sides with Schmitt-trigger inputs, 50 kV/µs common-mode transient immunity, and stable timing over –40 to +125 °C. The device supports fail-safe operation where outputs default to logic low during input-side power loss while maintaining valid states under output-side power only.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 3 input channels (A1–A3), 2 output channels (B1–B2); asymmetric I/O partition enables bidirectional isolation in compact systems |
| Max Data Rate | 150 Mbps - supports high-speed serial interfaces including SPI, RS-485, and isolated ADC/DAC links |
| Propagation Delay | 5–13 ns - ensures sub-10 ns typical latency critical for real-time motor control and feedback loops |
| Isolation Rating | 2.5 kVRMS - UL, CSA, VDE, CQC certified for reinforced insulation in industrial and automotive applications |
| Supply Voltage | 2.5–5.5 V per side - interoperable with 3.3 V and 5 V logic domains without level-shifting |
| Fail-Safe Default | Low - outputs drive logic low when VDD1 is unpowered, preventing undefined states in power-loss scenarios |
| CMTI | ≥35 kV/µs - maintains signal integrity in noisy environments like inverters and battery management systems |
Pinout & Package
SI8652BB-AS1R is housed in a RoHS-compliant 16-pin narrow-body SOIC package (NB SOIC-16) with 7.5 mm creepage and clearance, rated for 2.5 kVRMS working voltage and compatible with JEDEC J-STD-020 reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side supply | Power for A-side logic and transmitter; must be ≥2.5 V for valid operation |
| GND1 | Input-side ground | Reference for A-side inputs and internal oscillator; separate from GND2 to maintain isolation barrier |
| A1–A3 | Input signals | Digital inputs referenced to VDD1/GND1; Schmitt-triggered for >0.4 V hysteresis and noise rejection |
| EN1 | Enable for A4/A5 | Controls tri-state of A4/A5 outputs; pulled up internally (2 µA), can be left floating or driven externally |
| VDD2 | Output-side supply | Power for B-side logic and receiver; independent of VDD1 for true galvanic isolation |
| GND2 | Output-side ground | Reference for B-side outputs and demodulator; electrically isolated from GND1 |
| B1–B3 | Output signals | Isolated outputs referenced to VDD2/GND2; 50 Ω nominal impedance for controlled-impedance PCB routing |
| EN2 | Enable for B1–B3 | Controls tri-state of B1–B3 outputs; functionally identical to EN1 but on output side |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates startup initialization and provides inherent immunity to magnetic fields and EMI |
| Tri-state outputs with dual enable control | EN1 and EN2 allow independent gating of isolated signal groups for multiplexing or power sequencing |
| Selectable fail-safe output state | Low-default configuration prevents hazardous states during input-side brownout or power loss |
| Ultra-low power at 100 Mbps | 11.7–15.2 mA total supply current at 5 V (VDD1+VDD2), enabling thermally constrained designs |
| AEC-Q100 qualified | Qualified to Grade 0 (–40 to +125 °C), supporting automotive applications including on-board chargers and traction inverters |
Applications
| Motor Control Feedback Loop | Isolated Switch-Mode Power Supply |
|---|---|
Use Scenario: Isolating PWM gate-drive signals and current-sense feedback between MCU and IGBT/MOSFET drivers in servo drives. IC Role / Device Role / Timing Role: SI8652BB-AS1R transmits three phase-control inputs (A1–A3) and receives two status outputs (B1–B2) across the isolation barrier with <10 ns skew. Use Value: Enables precise timing synchronization and prevents ground-loop noise from corrupting feedback signals in high-dV/dt environments. | Use Scenario: Providing isolated feedback for secondary-side regulation in LLC resonant converters used in EV charging systems. IC Role / Device Role / Timing Role: SI8652BB-AS1R carries error amplifier output (A1) and synchronous rectifier control (A2–A3) to primary side while returning fault flags (B1–B2) to secondary controller. Use Value: Maintains 150 Mbps link reliability under 50 kV/µs transients, ensuring stable regulation during load steps and line surges. |
| Battery Management System (BMS) | Industrial PLC Digital I/O Module |
Use Scenario: Isolating cell voltage monitoring and balancing commands between isolated slave controllers and master MCU in 400–800 V battery packs. IC Role / Device Role / Timing Role: SI8652BB-AS1R routes three analog-to-digital conversion triggers (A1–A3) and returns two fault alerts (B1–B2) with fail-safe low default during partial power loss. Use Value: Guarantees safe shutdown behavior when cell monitor ICs lose power, meeting ASIL-B functional safety requirements. | Use Scenario: Interfacing 24 V DC field sensors and actuators to 3.3 V microcontroller logic in factory automation cabinets. IC Role / Device Role / Timing Role: SI8652BB-AS1R isolates three sensor inputs (A1–A3) and drives two relay control outputs (B1–B2) with independent enable pins for hot-swap capability. Use Value: Allows live insertion/removal of I/O modules without disrupting controller operation or inducing latch-up in downstream logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8652BB-IS1R | Industrial-grade version (–I suffix); same pinout, electrical specs, and package but lacks AEC-Q100 qualification and PPAP documentation | Suitable for non-automotive industrial use where automotive process controls and IMDS/CAMDS compliance are not required | Select SI8652BB-IS1R for cost-sensitive industrial designs without automotive certification mandates |
| ADUM1250ARZ | 2-channel, 150 Mbps, 2.5 kVRMS, SOIC-8; no enable pins, fixed default state, higher 100 Mbps supply current (19.5 mA vs. 15.2 mA) | Limited to simpler bidirectional isolation; cannot support asymmetric I/O count or independent channel enable control | Choose ADUM1250ARZ only when channel count, enable flexibility, and automotive qualification are not design requirements |
Compared with SI8652BB-IS1R, the SI8652BB-AS1R adds AEC-Q100 qualification and automotive production controls without sacrificing performance; compared with ADUM1250ARZ, it offers 3-input/2-output asymmetry, dual enable control, and lower power at high speed-making it optimal for complex automotive and industrial isolation architectures.
Availability
SI8652BB-AS1R is available at Aetrix Electronics and suitable for industrial automation systems, battery management systems, and on-board chargers requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI8652BB-AS1R 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 high-reliability applications.
The Si865x family was designed specifically for demanding industrial and automotive isolation needs-delivering ultra-low power, high-speed data transfer, and certified reinforced insulation in compact packages.
FAQ
What is the isolation rating and safety certification status of SI8652BB-AS1R?
SI8652BB-AS1R is rated for 2.5 kVRMS reinforced isolation and certified by UL (1577), CSA, VDE (0884-10), and CQC to IEC 60950-1, 62368-1, and 60601-1 standards. These certifications validate its suitability for medical, industrial, and automotive end-equipment requiring reinforced insulation barriers.
Does SI8652BB-AS1R require external startup initialization or configuration?
No. SI8652BB-AS1R uses an RF-based isolation architecture with no startup initialization sequence. Outputs follow inputs within 40 µs of VDD1/VDD2 reaching operating voltage, and all timing parameters-including propagation delay and skew-are guaranteed across temperature and voltage without calibration or firmware setup.
How does the fail-safe low-default mode operate in SI8652BB-AS1R?
In SI8652BB-AS1R, when VDD1 is unpowered (0 V) and VDD2 remains active, outputs B1–B3 default to logic low-ensuring predictable, safe states during input-side power loss. This behavior is hard-coded per ordering option (–BB = low default) and does not require external pull-down resistors or configuration.
What are the supply current requirements of SI8652BB-AS1R at 100 Mbps?
At 100 Mbps with 5 V supplies, SI8652BB-AS1R draws 11.7–15.2 mA total (VDD1 + VDD2). At 3.3 V, it consumes 8.9–11.1 mA. These values include all five channels operating simultaneously with 15 pF capacitive load per output, confirming its ultra-low-power advantage over legacy isolators.
Is SI8652BB-AS1R pin-compatible with other Si865x variants in the same package?
Yes. All Si865x devices in the NB SOIC-16 package-including SI8652BB-AS1R, SI8652BC-AS1R, and SI8652BD-AS-share identical pinouts and mechanical footprints. Differences are limited to isolation rating (2.5/3.75/5.0 kVRMS) and fail-safe default (low/high), allowing drop-in replacement where specifications align.
SI8652BB-AS1R 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:
- 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-SOIC
SI8652BB-AS1R FAQ
1.How can I place an order for SI8652BB-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8652BB-AS1R 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-AS1R reliable?
The price and inventory of SI8652BB-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8652BB-AS1R is usually 5 days.
3.What payment methods are accepted for SI8652BB-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8652BB-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8652BB-AS1R?
SI8652BB-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8652BB-AS1R 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-AS1R?
For technical support, including SI8652BB-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8652BB-AS1R requirements.
6.How does Aetrix verify that SI8652BB-AS1R is sourced from the original manufacturer or authorized distributors?
All SI8652BB-AS1R 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-AS1R meets industry standards.
7.What is the process for return or replacement of SI8652BB-AS1R?
All SI8652BB-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8652BB-AS1R, 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-AS1R part is unused and in its original packaging.
Return procedure for SI8652BB-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8652BB-AS1R 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
Texas Instruments
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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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