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Skyworks Solutions Inc. SI8650BB-AS1R
- Part No.:
- SI8650BB-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8650BB-AS1R.pdf
- Description:
- AUTOMOTIVE 2.5 KV 5 FORWARD CHAN
- Quantity:
- Payment:
- Shipping:
Inventory:3,398
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Product details
Overview
SI8650BB-AS1R from Skyworks is a five-channel, unidirectional digital isolator with 2.5 kVRMS reinforced isolation, 150 Mbps data rate, <10 ns propagation delay, and fail-safe low-default output state. It operates across –40 to +125 °C and supports 2.5–5.5 V dual supplies, serving as a high-reliability signal barrier in isolated power converters and motor control interfaces.
For engineers reviewing the SI8650BB-AS1R datasheet, SI8650BB-AS1R pinout, SI8650BB-AS1R application, or SI8650BB-AS1R equivalent, key selection criteria include its narrow-body SOIC-16 package, automotive-grade AEC-Q100 qualification, 50 kV/µs CMTI, and tri-state enable control for system-level power sequencing and fault containment.
Technical Context
The SI8650BB-AS1R implements RF-based on-off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture delivers deterministic timing with 0.5 ns channel-channel skew and 2 ns propagation delay skew across temperature and voltage.
All five channels are input-side (VDD1) to output-side (VDD2) unidirectional, with no inputs on the output side - confirmed by Table 1.1 ordering guide and functional description. The EN pin (on VDD2 side) controls all five outputs simultaneously into high-impedance state, supporting system-level enable/disable coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 5 unidirectional, input-to-output only (VDD1 → VDD2) |
| Isolation Rating | 2.5 kVRMS reinforced insulation per UL/VDE/CSA/CQC |
| Max Data Rate | 150 Mbps - supports high-speed serial interfaces like SPI, RS-485, and isolated ADC/DAC links |
| Propagation Delay | 5–13 ns - enables tight timing budgets in real-time control loops |
| Supply Voltage | 2.5–5.5 V on both sides - allows mixed-voltage system interfacing (e.g., 3.3 V MCU ↔ 5 V actuator) |
| CMTI | ≥35 kV/µs - ensures reliable operation in noisy motor drive and inverter environments |
| Fail-Safe Default | Low output during input-side power loss - prevents unintended activation in safety-critical systems |
Pinout & Package
SI8650BB-AS1R uses a RoHS-compliant narrow-body SOIC-16 package (5.3 mm width), qualified for automotive applications and compatible with standard JEDEC reflow profiles (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side supply | Power for channel inputs and internal transmitter; must be stable before valid data transfer |
| GND1 | Input-side ground | Reference for all input signals and VDD1; requires low-inductance connection to minimize noise coupling |
| IN1–IN5 | Input channels | CMOS-compatible Schmitt-trigger inputs; accept 2.0–5.5 V logic levels with 0.44 V hysteresis |
| VDD2 | Output-side supply | Power for output drivers and receiver; independent of VDD1 for true galvanic isolation |
| GND2 | Output-side ground | Reference for all outputs and VDD2; physically separated from GND1 by ≥8.0 mm creepage/clearance |
| OUT1–OUT5 | Output channels | 50 Ω nominal output impedance; drive 15 pF loads at 150 Mbps with <4 ns rise/fall times |
| EN | Enable control | Active-high signal on VDD2 side; disables all outputs to high-impedance when low (EN = 0) |
| NC | No-connect | Pins 1, 9, and 16 are internally unused; may be left floating, tied to VDD2, or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation barrier | Eliminates LED aging and temperature drift; enables 60-year lifetime at rated working voltage |
| Tri-state enable (EN) | Single-pin control over all five outputs - simplifies system-level power sequencing and fault recovery |
| Schmitt-trigger inputs | 0.44 V hysteresis improves noise margin in industrial EMI environments (e.g., motor drives, PLCs) |
| Fail-safe low default | Guaranteed logic-low output during VDD1 undervoltage or loss - critical for safe shutdown in BMS and OBC |
| AEC-Q100 Grade 1 | Qualified for automotive use from –40 to +125 °C ambient; full PPAP documentation and IMDS/CAMDS support |
Applications
| Industrial Motor Control | Isolated Power Supply Feedback |
|---|---|
|
Use Scenario: Gate driver interface in 3-phase inverter stacks for HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Isolates PWM signals from MCU to gate drivers while maintaining <13 ns propagation delay and <2.5 ns skew across all 5 channels. Use Value: Enables precise phase alignment and prevents shoot-through faults under fast transients (≥35 kV/µs CMTI). |
Use Scenario: Secondary-side voltage/current sensing feedback path in isolated DC-DC converters for server PSUs. IC Role / Device Role / Timing Role: Transmits analog-to-digital converter outputs across isolation barrier with sub-5 ns pulse width distortion. Use Value: Maintains regulation accuracy and transient response without optocoupler latency or gain drift. |
| Battery Management Systems | Automotive On-Board Charger |
|
Use Scenario: Cell voltage monitoring and pack contactor control in EV battery packs. IC Role / Device Role / Timing Role: Isolates microcontroller I/O from high-voltage battery domain using fail-safe low-default outputs. Use Value: Prevents false contactor closure during brownout or startup; certified to IEC 60601-1 and UL 1577. |
Use Scenario: Signal isolation between AC/DC front-end controller and DC/DC secondary-side telemetry in OBC modules. IC Role / Device Role / Timing Role: Provides 2.5 kVRMS reinforced isolation for CAN, SPI, and status signals in ASIL-B compliant designs. Use Value: Meets VDE 0884-10 and GB4943.1 requirements; supports AIAG PPAP and CAMDS material reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8650BB-IS1R | Industrial-grade (–I suffix), same pinout/package, identical electrical specs except AEC-Q100 not applied | Lacks automotive qualification documentation (PPAP, IMDS); suitable for non-automotive industrial use | Select when automotive traceability and zero-defect manufacturing flow are not required |
| ADUM140E0BRZ | 4-channel, 100 Mbps max, 2.5 kVRMS, 16-lead SOIC; higher 10.5 ns typical propagation delay | Lower channel count and data rate; lacks fail-safe low-default option and automotive qualification | Choose only if 4 channels suffice and AEC-Q100 compliance is unnecessary |
Compared with SI8650BB-AS1R, SI8650BB-IS1R offers identical performance in non-automotive settings but omits PPAP and CAMDS support, while ADUM140E0BRZ provides lower channel density and speed with no fail-safe or automotive validation - making SI8650BB-AS1R the sole choice for AEC-Q100-compliant 5-channel isolation.
Availability
SI8650BB-AS1R is available at Aetrix Electronics and suitable for automotive on-board chargers, battery management systems, and industrial motor drives requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for SI8650BB-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 semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies.
The Si865x family was designed specifically for high-reliability, high-speed digital isolation in automotive and industrial systems - emphasizing AEC-Q100 compliance, reinforced insulation, and ultra-low power consumption.
FAQ
What is the isolation rating and certification status of SI8650BB-AS1R?
SI8650BB-AS1R provides 2.5 kVRMS reinforced isolation and is certified to UL 1577, CSA Component Acceptance Notice 5A, VDE 0884-10, and CQC GB4943.1. These approvals confirm compliance with IEC 62368-1 and IEC 60601-1 for medical and industrial end equipment. SI8650BB-AS1R meets all required creepage and clearance distances for its SOIC-16 narrow-body package.
Does SI8650BB-AS1R support bidirectional communication?
No, SI8650BB-AS1R is strictly unidirectional: all five channels transmit from the VDD1 side (input side) to the VDD2 side (output side). There are no input pins on the VDD2 side. This configuration is fixed per the Si8650 product definition and ordering guide - bidirectional capability requires separate part numbers like Si8651 or Si8652.
What is the function of the EN pin on SI8650BB-AS1R?
The EN pin on SI8650BB-AS1R is an active-high enable control located on the VDD2 (output) side. When EN = high, all five outputs follow their respective inputs; when EN = low, all outputs enter high-impedance state. This allows centralized control of signal transmission - essential for power sequencing, fault containment, and bus sharing in multi-isolator systems.
How does the fail-safe low-default behavior work in SI8650BB-AS1R?
SI8650BB-AS1R is ordered with "BB" suffix indicating low-default output state. When VDD1 is unpowered or below UVLO threshold (≤2.16 V), and VDD2 remains powered, all outputs default to logic low. This behavior is implemented via internal pull-down resistors and is guaranteed across temperature and voltage - critical for preventing unintended activation in safety-critical automotive and industrial systems.
Is SI8650BB-AS1R pin-compatible with other Si865x variants in SOIC-16 packages?
Yes, SI8650BB-AS1R shares identical pinout and footprint with all Si865x devices in narrow-body SOIC-16 (e.g., SI8650BB-IS1R, SI8651BB-AS1R). However, channel directionality (5× unidirectional vs. 4+1 bidirectional) and default output state (low vs. high) differ by part number - PCB layout is interchangeable, but firmware and system-level logic must match the specific variant's functional configuration.
SI8650BB-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:
- 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-SOIC
SI8650BB-AS1R FAQ
1.How can I place an order for SI8650BB-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8650BB-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 SI8650BB-AS1R reliable?
The price and inventory of SI8650BB-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8650BB-AS1R is usually 5 days.
3.What payment methods are accepted for SI8650BB-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8650BB-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8650BB-AS1R?
SI8650BB-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8650BB-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 SI8650BB-AS1R?
For technical support, including SI8650BB-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8650BB-AS1R requirements.
6.How does Aetrix verify that SI8650BB-AS1R is sourced from the original manufacturer or authorized distributors?
All SI8650BB-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 SI8650BB-AS1R meets industry standards.
7.What is the process for return or replacement of SI8650BB-AS1R?
All SI8650BB-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8650BB-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 SI8650BB-AS1R part is unused and in its original packaging.
Return procedure for SI8650BB-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8650BB-AS1R Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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