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Skyworks Solutions Inc. SI8650ED-ASR
- Part No.:
- SI8650ED-ASR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8650ED-ASR.pdf
- Description:
- AUTOMOTIVE 5 KV 5-CHANNEL DIGITA
- Quantity:
- Payment:
- Shipping:
Inventory:3,744
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Product details
Overview
SI8650ED-ASR from Skyworks is a five-channel, unidirectional digital isolator with high-side input (5 channels on VDD1 side, 0 on VDD2), 5 kVRMS reinforced isolation rating, 150 Mbps data rate, and fail-safe default-high output state. It operates across –40 to +125 °C and supports 2.5–5.5 V dual supplies, enabling robust signal isolation in high-voltage industrial power converters and battery management systems.
For engineers reviewing the SI8650ED-ASR datasheet, SI8650ED-ASR pinout, SI8650ED-ASR application, or SI8650ED-ASR equivalent, this page delivers verified specifications including propagation delay (<10 ns), channel-channel skew (≤0.5 ns), CMTI (≥50 kV/µs), and automotive-grade AEC-Q100 qualification - critical for isolated gate drivers and EV traction inverter designs.
Technical Context
The SI8650ED-ASR uses RF-based on/off keying modulation across a semiconductor isolation barrier, eliminating startup initialization and providing inherent noise immunity without external components beyond 0.1 µF bypass capacitors. Its Schmitt-trigger inputs and tri-state outputs with dedicated EN control enable deterministic behavior during power sequencing.
All five channels reside on the input side (VDD1), with outputs on VDD2 side driven in parallel; no internal cross-coupling exists between channels. The device implements independent undervoltage lockout (UVLO) on both sides, with hysteresis of 70 mV, ensuring reliable operation during brownout conditions in motor control and isolated ADC interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels & Direction | 5 unidirectional channels, all inputs on VDD1 side, all outputs on VDD2 side - enables full upstream signal isolation without reverse-path routing. |
| Isolation Rating | 5 kVRMS reinforced insulation (UL, VDE, CQC certified) - meets IEC 62368-1 and IEC 60601-1 requirements for medical and industrial safety-critical systems. |
| Max Data Rate | 150 Mbps - supports high-speed serial interfaces such as isolated SPI clock lines and real-time sensor feedback in inverters. |
| Propagation Delay | 8 ns typical (≤13 ns max) - ensures tight timing alignment in closed-loop motor control and fast-switching SMPS feedback paths. |
| Channel-Channel Skew | 0.5 ns typical (≤2.5 ns max) - guarantees synchronized multi-signal transmission for PWM dead-time control and phase current sampling. |
| CMTI | 50 kV/µs minimum - maintains signal integrity under fast dv/dt transients in SiC/GaN-based power stages. |
| Supply Range | 2.5–5.5 V per side, independent - allows interfacing with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
Pinout & Package
SI8650ED-ASR is housed in a RoHS-compliant wide-body SOIC-16 package (WB SOIC-16), offering 8.3 mm creepage and clearance for 5 kVRMS reinforced insulation. Pin layout follows standard Si865x pinout with dedicated VDD1/GND1 (pins 1–2, 15–16) and VDD2/GND2 (pins 9–10, 12–13) pairs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 (Pin 1) | Input-side supply | Power for all 5 input buffers and modulator; must be decoupled with 0.1 µF capacitor placed adjacent to pin. |
| GND1 (Pin 2) | Input-side ground | Reference return for input signals and VDD1; requires low-inductance connection to isolate primary-side ground plane. |
| A1–A5 (Pins 3–7) | Input channels | CMOS/Schmitt-trigger inputs accepting 2.0–5.5 V logic; no external pull-ups needed for default-high configuration. |
| VDD2 (Pin 9) | Output-side supply | Power for demodulator and output drivers; independent of VDD1 - enables galvanic separation of control and power domains. |
| GND2 (Pin 10) | Output-side ground | Reference for output signals; forms isolation barrier with GND1 - must be routed on separate PCB layer with ≥8.3 mm spacing. |
| B1–B5 (Pins 11, 14, 15, 16, 13) | Output channels | 50 Ω nominal output impedance drivers; support 15 pF load at 150 Mbps; tri-state capable via EN pin (Pin 8). |
| EN (Pin 8) | Output enable control | Active-high enable on VDD2 side; drives B1–B5 into high-impedance when low - used for bus arbitration and safe shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe default-high output | Guarantees known logic state (high) on all B1–B5 outputs during VDD1 loss - prevents unintended gate turn-on in IGBT/SiC driver circuits. |
| Ultra-low power at 100 Mbps | 5.5 mA per channel at 5 V (27.5 mA total for 5 channels) - reduces thermal load in densely packed power modules and automotive ECUs. |
| Precision timing performance | 0.5 ns typical channel-channel skew and 2 ns propagation delay skew - enables sub-microsecond synchronization across multiple isolated control signals. |
| Automotive-grade qualification | AEC-Q100 Grade 1 (–40 to +125 °C), AIAG-compliant PPAP, IMDS/CAMDS support - qualified for on-board chargers and battery management systems. |
| High-noise immunity architecture | RF modulation scheme with 50 kV/µs CMTI and Schmitt-trigger inputs - rejects EMI from switching nodes in 100+ kHz inverters without external filtering. |
Applications
| Industrial Motor Control | Isolated Switch-Mode Power Supply |
|---|---|
|
Use Scenario: Isolating PWM signals and fault feedback between MCU and gate driver ICs in 3-phase PMSM inverters. IC Role / Device Role / Timing Role: Five-channel unidirectional isolator transmitting gate drive enable, PWM, and overcurrent signals across 5 kVRMS barrier with <10 ns propagation delay. Use Value: Enables precise dead-time control and fast fault response (<1 µs) while meeting IEC 61800-5-1 reinforced insulation requirements. |
Use Scenario: Providing isolated feedback for voltage regulation and primary-side sensing in 1–3 kW telecom rectifiers. IC Role / Device Role / Timing Role: Transmitting isolated error amplifier output, synchronous rectifier control, and OVP signals across high dv/dt barriers. Use Value: Maintains regulation stability under 50 kV/µs transients and supports 150 Mbps loop bandwidth for adaptive digital control. |
| Battery Management System | Traction Inverter Control |
|
Use Scenario: Isolating cell voltage measurement data and balancing commands between battery monitor IC and MCU in EV packs. IC Role / Device Role / Timing Role: Five-channel isolator carrying ADC data, balancing enable, and thermal fault signals across 5 kVRMS barrier with fail-safe high default. Use Value: Prevents false balancing activation during power-up/down and ensures ASIL-B compliant signal integrity per ISO 26262. |
Use Scenario: Transmitting isolated gate drive signals and DESAT feedback from SiC half-bridge modules to central controller in BEV inverters. IC Role / Device Role / Timing Role: Delivering synchronized PWM and DESAT signals with ≤0.5 ns channel skew to maintain phase accuracy in 10–20 kHz switching. Use Value: Eliminates timing-induced shoot-through risk and supports functional safety diagnostics per ISO 26262 ASIL-C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM141D0BRZ | 4-channel, 150 Mbps, 3.75 kVRMS, default-low output, SOIC-16 narrow body | Lacks fifth channel and 5 kVRMS rating; unsuitable for reinforced insulation systems requiring >4.2 kVRMS working voltage | Select only if four channels suffice and system-level creepage/clearance permits narrow-body package. |
| ISO6741FDWR | 4-channel, 50 Mbps, 5 kVRMS, default-high, SOIC-16 wide body, lower CMTI (35 kV/µs) | Lower speed limits use in high-bandwidth control loops; reduced CMTI increases susceptibility to SiC/GaN switching noise | Acceptable for cost-sensitive industrial SMPS where 50 Mbps suffices and dv/dt < 30 kV/µs. |
Compared with ADUM141D0BRZ and ISO6741FDWR, SI8650ED-ASR uniquely delivers five high-speed channels with 5 kVRMS reinforced insulation and fail-safe high default - making it the only option qualified for ASIL-B BMS and 150 Mbps traction inverter gate control without channel stacking or derating.
Availability
SI8650ED-ASR is available at Aetrix Electronics and suitable for industrial motor control, battery management systems, and traction inverter designs requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI8650ED-ASR 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 SI8650ED-ASR belongs to Skyworks' Si865x ultra-low-power digital isolator family, engineered for automotive and industrial systems demanding high-speed, low-latency, and safety-certified galvanic isolation.
FAQ
What is the isolation rating and safety certification status of SI8650ED-ASR?
SI8650ED-ASR provides 5 kVRMS reinforced insulation and is certified to UL 1577, VDE 0884-10, CSA 5A, and CQC GB4943.1 standards. These certifications validate its suitability for medical (IEC 60601-1) and industrial (IEC 62368-1) end equipment requiring reinforced insulation. The device meets creepage and clearance requirements for wide-body SOIC packaging at rated working voltage.
Does SI8650ED-ASR require external components for basic operation?
No, SI8650ED-ASR requires only two 0.1 µF ceramic bypass capacitors - one between VDD1 and GND1, another between VDD2 and GND2 - placed adjacent to the respective pins. Unlike optocouplers, it needs no pull-up resistors due to integrated fail-safe circuitry, and no startup initialization sequence is required for reliable power-up behavior.
How does the fail-safe default-high feature function in SI8650ED-ASR?
In SI8650ED-ASR, the fail-safe default-high mode ensures all five outputs (B1–B5) drive logic high when VDD1 is unpowered but VDD2 remains active. This behavior is implemented via internal pull-ups and is fixed by part number - SI8650ED-ASR is ordered specifically for high-default operation, preventing hazardous low-side switch activation during primary-side power loss.
Is SI8650ED-ASR compatible with 2.5 V logic interfaces?
Yes, SI8650ED-ASR supports 2.5–5.5 V operation on both VDD1 and VDD2 sides. At 2.5 V, it delivers 1.5 mA per channel at 1 Mbps and 3.5 mA per channel at 100 Mbps, maintaining full 150 Mbps capability. Input thresholds (VT+ = 1.4–1.9 V, VT– = 1.0–1.4 V) ensure compatibility with 2.5 V CMOS logic without level translation.
What is the role of the EN pin in SI8650ED-ASR and how is it used?
The EN pin (Pin 8) is an active-high enable control on the VDD2 side that places all five outputs (B1–B5) into high-impedance state when driven low. This allows safe bus sharing, controlled shutdown sequences, and isolation of downstream circuitry during fault conditions. Internal 2 µA pull-up permits floating use, but external tie-high/low is recommended in noisy environments.
SI8650ED-ASR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm 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:
- 5000Vrms
- 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
SI8650ED-ASR FAQ
1.How can I place an order for SI8650ED-ASR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8650ED-ASR 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 SI8650ED-ASR reliable?
The price and inventory of SI8650ED-ASR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8650ED-ASR is usually 5 days.
3.What payment methods are accepted for SI8650ED-ASR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8650ED-ASR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8650ED-ASR?
SI8650ED-ASR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8650ED-ASR 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 SI8650ED-ASR?
For technical support, including SI8650ED-ASR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8650ED-ASR requirements.
6.How does Aetrix verify that SI8650ED-ASR is sourced from the original manufacturer or authorized distributors?
All SI8650ED-ASR 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 SI8650ED-ASR meets industry standards.
7.What is the process for return or replacement of SI8650ED-ASR?
All SI8650ED-ASR units undergo pre-shipment inspection (PSI). If there is an issue with SI8650ED-ASR, 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 SI8650ED-ASR part is unused and in its original packaging.
Return procedure for SI8650ED-ASR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8650ED-ASR 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
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ISO7721DR
Texas Instruments
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ISO7721FDR
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
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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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