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Skyworks Solutions Inc. SI8652EC-AS1R
- Part No.:
- SI8652EC-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8652EC-AS1R.pdf
- Description:
- AUTOMOTIVE 3.75 KV 3 FORWARD & 2
- Quantity:
- Payment:
- Shipping:
Inventory:3,569
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Product details
Overview
SI8652EC-AS1R from Skyworks is a five-channel, ultra-low-power digital isolator with 3 input channels on VDD1 side and 2 output channels on VDD2 side, 3.75 kVRMS reinforced isolation rating, 150 Mbps data rate, and selectable high-fail-safe default output state - designed for isolated communication in battery management systems and industrial inverters.
For engineers reviewing the SI8652EC-AS1R datasheet, SI8652EC-AS1R pinout, SI8652EC-AS1R application, or SI8652EC-AS1R equivalent, this page delivers verified electrical specs, fail-safe behavior under power loss, narrow-body SOIC-16 package details, and automotive-grade AEC-Q100 qualification - all critical for safety-critical isolation design.
Technical Context
The SI8652EC-AS1R 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/B2/B3 outputs.
It supports asymmetric channel configuration (3 inputs / 2 outputs), operates from 2.5–5.5 V on both sides, and maintains sub-13 ns propagation delay and ≤2.5 ns channel-channel skew across –40 to +125 °C - with undervoltage lockout (UVLO) thresholds at 2.24 V (rising) and 2.16 V (falling) per supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 5 total: 3 unidirectional inputs (A1–A3), 2 unidirectional outputs (B1–B2); A4/A5 and B3 are enable-controlled |
| Max Data Rate | 150 Mbps - supports high-speed serial interfaces like SPI clock lines and isolated ADC/DAC control paths |
| Isolation Rating | 3.75 kVRMS - certified to UL 1577, VDE 0884-10, IEC 62368-1, and GB4943.1 for reinforced insulation |
| Propagation Delay | 5–13 ns - enables precise timing in motor gate drivers and real-time feedback loops |
| Supply Voltage | 2.5–5.5 V on both VDD1 and VDD2 - allows interoperability with 3.3 V microcontrollers and 5 V analog subsystems |
| Fail-Safe Default | High - outputs drive logic high during VDD1 power loss while VDD2 remains active, preventing undefined states |
| CMTI | ≥35 kV/µs - ensures reliable operation in noisy motor drive and inverter environments with fast voltage transients |
Pinout & Package
Narrow-body SOIC-16 (NB SOIC-16) package, RoHS-compliant, JEDEC-standard 260 °C reflow compatible, 10.3 mm × 7.5 mm footprint with 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1–A3 | Input channels (VDD1 side) | Accept logic signals from MCU or sensor interface; Schmitt-triggered for >0.44 V hysteresis and noise rejection |
| B1–B3 | Output channels (VDD2 side) | Drive isolated loads (e.g., gate drivers, ADC REF); 50 Ω nominal output impedance for controlled-impedance routing |
| A4, A5 | Enable inputs (VDD1 side) | Control B1–B3 outputs (A4) and B1–B2 outputs (A5); internally pulled up to VDD1 via 2 µA current source |
| EN1, EN2 | Enable control terminals | EN1 enables A4/A5 outputs; EN2 enables B1–B3 outputs - each can be tied high/low or left floating with noise mitigation guidance |
| VDD1, GND1 | Input-side power | Power domain for A-side logic; UVLO protection activates below 2.16 V to prevent metastability |
| VDD2, GND2 | Output-side power | Independent power domain for B-side; supports level-shifting between different supply domains |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation | Eliminates LED aging and temperature drift; enables 60-year lifetime at rated working voltage |
| Tri-state outputs with enable | EN1/EN2 allow dynamic bus sharing and low-power sleep modes without external logic |
| Selectable fail-safe mode | High-default output (per SI8652EC-AS1R ordering code) ensures safe state during input-side brownout |
| Ultra-low power at 100 Mbps | 11.7–15.2 mA total supply current at 5 V (VDD1+VDD2), reducing thermal load in dense PCB layouts |
| AEC-Q100 qualified | Automotive-grade version (–A suffix) meets Grade 1 (–40 to +125 °C) requirements with zero-defect manufacturing flow |
Applications
| Battery Management System (BMS) | Industrial Motor Drive |
|---|---|
|
Use Scenario: Isolating cell voltage monitoring and pack-level communication between high-voltage battery stack and MCU. IC Role / Device Role / Timing Role: SI8652EC-AS1R transmits analog front-end ADC status and fault flags across isolation barrier with <13 ns delay. Use Value: Enables real-time cell balancing decisions while maintaining 3.75 kVRMS creepage/clearance compliance per IEC 62368-1. |
Use Scenario: Providing isolated gate drive signals and feedback for IGBTs in three-phase inverter stages. IC Role / Device Role / Timing Role: SI8652EC-AS1R delivers synchronized PWM edges to upper/lower gate drivers with ≤2.5 ns channel skew. Use Value: Prevents shoot-through by ensuring precise edge alignment across isolated power domains under 50 kV/µs CMTI stress. |
| On-Board Charger (OBC) | Isolated ADC Interface |
|
Use Scenario: Isolating CAN communication and AC line sensing in bidirectional EV charging units. IC Role / Device Role / Timing Role: SI8652EC-AS1R routes control commands and grid synchronization signals between primary and secondary sides. Use Value: Supports 150 Mbps data rate for fast fault reporting and meets reinforced insulation requirements for 1000 VAC systems. |
Use Scenario: Interfacing isolated sigma-delta ADCs (e.g., AMC1306) to host processor in precision current/voltage measurement. IC Role / Device Role / Timing Role: SI8652EC-AS1R carries high-resolution serial data streams with <5 ns minimum pulse width support. Use Value: Preserves signal integrity for 24-bit measurements by limiting pulse width distortion to ≤4.5 ns and jitter to ≤350 ps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8652BB-AS1R | Same 3/2 channel count and NB SOIC-16 package, but low-fail-safe default (outputs go low on VDD1 loss) | Suitable where system safety requires deactivation (e.g., disable gate drive) during input-side power failure | Select SI8652BB-AS1R only if hardware-level fail-low behavior is required; SI8652EC-AS1R provides fail-high for active-safety hold |
| ADUM141E0BRZ | 4-channel, 100 Mbps max, 2.5 kVRMS, SOIC-16 wide body; no selectable fail-safe mode - defaults to last state | Limited to lower-speed industrial PLC I/O; lacks automotive qualification and reinforced 3.75 kVRMS rating | Choose ADUM141E0BRZ only for cost-sensitive non-automotive designs requiring basic isolation without fail-safe control |
Compared with SI8652BB-AS1R, SI8652EC-AS1R provides guaranteed high-state output during VDD1 brownout - critical for holding safety relays active. Versus ADUM141E0BRZ, it delivers higher speed, stronger isolation, and deterministic fail-safe behavior essential for ISO 26262-compliant systems.
Availability
SI8652EC-AS1R is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and isolated ADC interfaces requiring stable component supply across automotive and industrial production lifecycles.
Supply support for SI8652EC-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 engineered for high-reliability, high-speed digital isolation in safety-critical automotive and industrial systems - delivering RF-based performance with AEC-Q100 qualification and 60-year lifetime assurance.
FAQ
What is the isolation rating and safety certification of SI8652EC-AS1R?
SI8652EC-AS1R provides 3.75 kVRMS reinforced isolation and is certified to UL 1577 (1 min), VDE 0884-10, IEC 62368-1, IEC 60601-1, and GB4943.1. These approvals validate its use in medical, industrial, and automotive systems requiring double or reinforced insulation barriers - confirmed in Skyworks' official datasheet revision 206455A.
Does SI8652EC-AS1R require startup initialization or configuration?
No - SI8652EC-AS1R is a CMOS digital isolator with no startup initialization required. Outputs follow inputs within 40 µs after VDD1/VDD2 exceed UVLO thresholds, and internal RF modulation eliminates boot-up delays or firmware dependencies. This behavior is guaranteed across –40 to +125 °C per datasheet Section 3.1.
How does the fail-safe mode work on SI8652EC-AS1R?
SI8652EC-AS1R is ordered with high-fail-safe mode: when VDD1 is unpowered but VDD2 remains active, all outputs (B1–B3) drive logic high. This is implemented via internal pull-ups on the output side and is fixed per part number - not user-configurable. The behavior is documented in Table 3.1 and Ordering Guide of the Si8650/51/52/55 datasheet.
What is the maximum data rate and timing performance of SI8652EC-AS1R?
SI8652EC-AS1R supports up to 150 Mbps with typical propagation delay of 8 ns, pulse width distortion ≤4.5 ns, channel-channel skew ≤2.5 ns, and minimum pulse width of 5 ns. These values are specified over full temperature and voltage range (–40 to +125 °C, 2.5–5.5 V) in Table 4.2 Electrical Characteristics.
Is SI8652EC-AS1R qualified for automotive applications?
Yes - SI8652EC-AS1R is an automotive-grade part (denoted by "-AS1R" suffix), qualified to AEC-Q100 Grade 1 (–40 to +125 °C), manufactured with zero-defect automotive process flows, and supported with AIAG-compliant PPAP documentation and IMDS/CAMDS material declarations per datasheet Section 1.1.
SI8652EC-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:
- 3750Vrms
- 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
SI8652EC-AS1R FAQ
1.How can I place an order for SI8652EC-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8652EC-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 SI8652EC-AS1R reliable?
The price and inventory of SI8652EC-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8652EC-AS1R is usually 5 days.
3.What payment methods are accepted for SI8652EC-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8652EC-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8652EC-AS1R?
SI8652EC-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8652EC-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 SI8652EC-AS1R?
For technical support, including SI8652EC-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8652EC-AS1R requirements.
6.How does Aetrix verify that SI8652EC-AS1R is sourced from the original manufacturer or authorized distributors?
All SI8652EC-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 SI8652EC-AS1R meets industry standards.
7.What is the process for return or replacement of SI8652EC-AS1R?
All SI8652EC-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8652EC-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 SI8652EC-AS1R part is unused and in its original packaging.
Return procedure for SI8652EC-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8652EC-AS1R Tags
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SI8710AC-B-ISR
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