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Skyworks Solutions Inc. SI8652BB-AS1
- Part No.:
- SI8652BB-AS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8652BB-AS1.pdf
- Description:
- AUTOMOTIVE 2.5 KV 3 FORWARD & 2
- Quantity:
- Payment:
- Shipping:
Inventory:4,476
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Product details
Overview
SI8652BB-AS1 from Skyworks is a 3-channel input / 2-channel output automotive-grade digital isolator with 2.5 kVRMS isolation, 150 Mbps data rate, and fail-safe low-default output state. It operates across –40 to +125 °C and supports dual 2.5–5.5 V supplies for isolated communication between MCU and high-voltage gate drivers in battery management systems.
For engineers reviewing the SI8652BB-AS1 datasheet, SI8652BB-AS1 pinout, SI8652BB-AS1 application, or SI8652BB-AS1 equivalent, this page delivers verified electrical specs, automotive qualification evidence (AEC-Q100), SOIC-16 narrow-body package details, and real-world timing performance including 8 ns typical propagation delay and 0.5 ns channel-channel skew - critical for motor control and OBC timing integrity.
Technical Context
The SI8652BB-AS1 implements RF-based on/off keying across a semiconductor isolation barrier, eliminating startup initialization and enabling robust noise immunity without optical degradation. Its architecture features independent undervoltage lockout (UVLO) monitors per side (VDD1/VDD2), Schmitt-trigger inputs, and tri-state outputs controlled by two dedicated enable pins (EN1, EN2).
It supports asymmetric channel configuration: three unidirectional channels from Side A (input side) to Side B (output side), and two reverse-direction channels from Side B to Side A - enabling bidirectional isolated feedback in power converters. Fail-safe behavior defaults outputs to logic low during input-side power loss, per ordering option "BB".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.5 kVRMS - certified to UL 1577, VDE 0884-10, and IEC 62368-1 reinforced insulation standards for industrial and automotive safety compliance. |
| Max Data Rate | 150 Mbps - enables high-speed serial interfaces (e.g., isolated SPI, UART, PWM feedback) without signal distortion at full bandwidth. |
| Propagation Delay | 8 ns typical - ensures sub-10 ns timing alignment critical for synchronous gate driving and current-sense loop closure in inverters. |
| Channel-Channel Skew | 0.5 ns - guarantees precise phase matching across isolated signal paths, essential for multi-phase motor control timing accuracy. |
| Supply Voltage Range | 2.5–5.5 V per side - allows direct interfacing with 3.3 V MCUs and 5 V analog front-ends without level-shifting circuitry. |
| Common-Mode Transient Immunity | 50 kV/µs - maintains signal integrity during fast-switching events (e.g., SiC/GaN power stage transitions) without corruption. |
| AEC-Q100 Grade | Qualified to Grade 1 (–40 to +125 °C) - validated for under-hood automotive use with zero-defect manufacturing flow and PPAP support. |
Pinout & Package
SI8652BB-AS1 is housed in a RoHS-compliant 16-pin narrow-body SOIC package (NB SOIC-16), 7.5 mm wide, with creepage/clearance ≥8.0 mm - meeting reinforced insulation requirements for 2.5 kVRMS working voltage.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side power supply | Supplies power to input-side logic and isolation transmitter; requires 0.1 µF bypass capacitor to GND1. |
| GND1 | Input-side ground reference | Reference for all Side A signals; must be separated from GND2 by ≥8.0 mm creepage for safety compliance. |
| INA1–INA3 | Input channels A1–A3 | Unidirectional digital inputs from MCU or sensor; Schmitt-triggered for >0.4 V hysteresis and noise rejection. |
| EN1 | Enable for outputs A4/A5 | Controls tri-state of reverse-direction outputs; pulled up internally (2 µA), can be left floating or driven externally. |
| VDD2 | Output-side power supply | Supplies power to output-side logic and isolation receiver; requires 0.1 µF bypass capacitor to GND2. |
| GND2 | Output-side ground reference | Reference for all Side B signals; galvanically isolated from GND1; defines safety barrier boundary. |
| OUTB1–OUTB3 | Output channels B1–B3 | Unidirectional isolated outputs to gate drivers or ADCs; 50 Ω nominal output impedance for controlled-impedance routing. |
| EN2 | Enable for outputs B1–B3 | Controls tri-state of forward-direction outputs; functionally identical to EN1 but assigned to Side B outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe low-default output | Guarantees outputs go low during VDD1 loss - prevents unintended activation of high-side switches in BMS fault conditions. |
| Tri-state outputs with dual enable | EN1 and EN2 independently disable A4/A5 and B1/B3 outputs into high-impedance, enabling bus sharing and dynamic reconfiguration. |
| RF-based isolation architecture | Eliminates LED aging and temperature drift; achieves stable timing (<2 ns skew variation over –40 to +125 °C) without calibration. |
| Ultra-low power at 100 Mbps | 11.7 mA (VDD1) + 15.0 mA (VDD2) at 100 Mbps - reduces thermal load in compact automotive modules versus optocoupler alternatives. |
| Automotive process flow | Full AEC-Q100 Grade 1 qualification with AIAG-compliant PPAP, IMDS/CAMDS reporting, and zero-defect methodology throughout production. |
Applications
| Battery Management System (BMS) | On-Board Charger (OBC) |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring ADCs and pack contactor control signals in high-voltage EV battery packs. IC Role / Device Role / Timing Role: SI8652BB-AS1 transmits isolated analog front-end data and safety-critical contactor commands across 400–800 V barriers. Use Value: 50 kV/µs CMTI prevents false triggering during pack switching transients; fail-safe low default avoids inadvertent contactor closure during MCU reset. |
Use Scenario: Providing isolated gate drive signals and current-sense feedback between primary-side controller and secondary-side SiC half-bridge in bidirectional OBCs. IC Role / Device Role / Timing Role: SI8652BB-AS1 carries PWM commands (A→B) and isolated current feedback (B→A) with matched 0.5 ns skew for tight loop control. Use Value: 150 Mbps bandwidth supports high-frequency SiC switching (>100 kHz); 8 ns propagation delay minimizes dead-time uncertainty in synchronous rectification. |
| Traction Inverter Control | Industrial Motor Drive |
|
Use Scenario: Isolating position encoder interface and phase current feedback in electric vehicle traction inverters. IC Role / Device Role / Timing Role: SI8652BB-AS1 routes resolver-to-MCU position data and isolated shunt amplifier outputs across isolation barrier with sub-10 ns timing precision. Use Value: AEC-Q100 qualification ensures reliability under vibration and thermal cycling; 125 °C ambient rating supports under-hood placement near power modules. |
Use Scenario: Enabling safe, high-speed communication between PLC CPU and isolated I/O modules in factory automation systems. IC Role / Device Role / Timing Role: SI8652BB-AS1 isolates digital I/O status and command signals while maintaining deterministic latency for motion control loops. Use Value: Dual enable pins allow dynamic reconfiguration of I/O direction during runtime; 2.5–5.5 V supply range simplifies integration with mixed-voltage fieldbus hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8652BB-IS1 | Industrial-grade (–40 to +125 °C), same pinout and electrical specs, but lacks AEC-Q100 qualification and PPAP documentation. | Suitable for non-automotive industrial systems where automotive process controls and material traceability are not required. | Select SI8652BB-IS1 for cost-sensitive industrial designs without automotive certification mandates. |
| ADUM141DARZ | 4-channel unidirectional isolator (141D), 150 Mbps, 2.5 kVRMS, but only one enable pin and no fail-safe low-default option. | Requires external pull-down resistors to emulate fail-safe behavior; less suitable for safety-critical BMS contactor control. | Choose ADUM141DARZ only when unidirectional channel count and legacy design reuse outweigh fail-safe and dual-enable requirements. |
Compared with SI8652BB-IS1, the SI8652BB-AS1 adds automotive qualification, PPAP, and material data system compliance without sacrificing performance; versus ADUM141DARZ, it provides native fail-safe low default and independent dual enable - reducing external components and improving functional safety in high-reliability systems.
Availability
SI8652BB-AS1 is available at Aetrix Electronics and suitable for battery management systems, on-board chargers, and traction inverters requiring stable component supply with automotive-grade traceability and long-term lifecycle support.
Supply support for SI8652BB-AS1 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 isolation in automotive electrification and industrial power conversion - emphasizing AEC-Q100 compliance, ultra-low power, and precise timing stability across temperature.
FAQ
What is the isolation rating and safety certification status of SI8652BB-AS1?
The SI8652BB-AS1 provides 2.5 kVRMS isolation and is certified to UL 1577, VDE 0884-10, CSA 5A, and IEC 62368-1 (reinforced insulation). These approvals validate its suitability for automotive and industrial safety-critical applications where galvanic separation is mandated by end-equipment standards.
Does SI8652BB-AS1 require external components for basic operation?
Yes - SI8652BB-AS1 requires two 0.1 µF ceramic bypass capacitors: one between VDD1 and GND1, and another between VDD2 and GND2, placed as close as possible to the package. No pull-up/down resistors are needed due to integrated Schmitt triggers and fail-safe logic.
How does the fail-safe low-default mode function in SI8652BB-AS1?
In SI8652BB-AS1, the "BB" suffix denotes fail-safe low-default behavior: when VDD1 is unpowered but VDD2 remains active, all five output channels (B1–B3, A4–A5) default to logic low. This prevents unintended activation of high-side power devices during MCU power-up or brownout events.
What is the maximum operating temperature and qualification grade for SI8652BB-AS1?
The SI8652BB-AS1 is qualified to AEC-Q100 Grade 1, supporting continuous operation from –40 to +125 °C ambient temperature. Its automotive process flow includes statistical process control, zero-defect methodology, and full PPAP documentation for OEM acceptance.
Can SI8652BB-AS1 support bidirectional data flow, and how is it configured?
Yes - SI8652BB-AS1 supports bidirectional isolation via its 3-input/2-output channel split: INA1–INA3 drive OUTB1–OUTB3 (A→B), while OUTA4–OUTA5 are driven by INB1–INB2 (B→A). EN1 controls A4/A5; EN2 controls B1/B3 - enabling independent direction control without external logic.
SI8652BB-AS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-AS1 FAQ
1.How can I place an order for SI8652BB-AS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8652BB-AS1 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-AS1 reliable?
The price and inventory of SI8652BB-AS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8652BB-AS1 is usually 5 days.
3.What payment methods are accepted for SI8652BB-AS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8652BB-AS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8652BB-AS1?
SI8652BB-AS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8652BB-AS1 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-AS1?
For technical support, including SI8652BB-AS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8652BB-AS1 requirements.
6.How does Aetrix verify that SI8652BB-AS1 is sourced from the original manufacturer or authorized distributors?
All SI8652BB-AS1 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-AS1 meets industry standards.
7.What is the process for return or replacement of SI8652BB-AS1?
All SI8652BB-AS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI8652BB-AS1, 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-AS1 part is unused and in its original packaging.
Return procedure for SI8652BB-AS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8652BB-AS1 Tags
-
ISO1212DBQR
Texas Instruments
-
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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