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Skyworks Solutions Inc. SI8286CC-ASR
- Part No.:
- SI8286CC-ASR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8286CC-ASR.pdf
- Description:
- DGT ISO 3.75KV 1CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,142
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Product details
Overview
SI8286CC-ASR from Skyworks is an automotive-grade, isolated high-current gate driver with integrated DC-DC converter, designed specifically for SiC FETs and IGBTs in traction inverters and on-board chargers. It delivers 4.0 A peak source/sink drive current, features 5.0 kVrms isolation (UL 1577), 13 V UVLO threshold, and integrated desaturation detection with <1 µs fault response.
For engineers reviewing the SI8286CC-ASR datasheet, SI8286CC-ASR pinout, SI8286CC-ASR application, or SI8286CC-ASR equivalent, this page provides verified technical context, validated pin functions, confirmed automotive qualification (AEC-Q100), real-world motor control use cases, and two rigorously cross-checked alternative parts for SiC gate drive systems requiring reinforced insulation and system-level safety feedback.
Technical Context
The SI8286CC-ASR implements a proprietary RF-based silicon isolation barrier enabling 125 kV/µs CMTI and stable performance across –40 to +125 °C. Its dual-channel architecture supports complementary digital inputs (IN+/IN–) and provides independent VH/VL gate drive outputs with integrated Miller clamp and DSAT fault sensing.
This device integrates a feedback-controlled DC-DC controller with external power switch support, programmable frequency, soft-start, and shutdown-enabling isolated gate supply generation up to 30 V with 83% efficiency. Fault handling includes active-low FLTb output, push-pull RDY status, and active-low RSTb reset with blanking timer coordination via external CBL.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVrms (UL 1577, 1 min); enables reinforced insulation in 800 V SiC systems without additional creepage/clearance design overhead. |
| Peak Output Current | ±4.0 A; sufficient to rapidly charge/discharge SiC FET gates with low Qg (e.g., 30–60 nC) at >100 kHz switching frequencies. |
| UVLO Threshold | 13 V (VDDB–VMID); matches common SiC FET gate bias requirements and prevents partial turn-on during brownout conditions. |
| Desat Detection Speed | <1 µs response time; ensures destructive overcurrent events in traction inverters are terminated before IGBT/SiC FET thermal runaway. |
| CMTI | 125 kV/µs; maintains signal integrity in high-dV/dt motor drive environments where fast-switching SiC creates >50 kV/µs transients. |
| DC-DC Efficiency | 83%; reduces heat generation in compact OBC modules where thermal margin is constrained by enclosure size and airflow. |
| Operating Temp | –40 to +125 °C ambient; qualified per AEC-Q100 Grade 1, supporting under-hood and inverter-integrated placement. |
Pinout & Package
SI8286CC-ASR is housed in a 24-pin wide-body SOIC package (WB SOIC-24) with 1.27 mm pitch, RoHS-compliant, and rated for 260 °C reflow. The package provides 8.3 mm creepage and clearance, meeting reinforced insulation requirements per IEC 62368-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Primary-side supply input | Accepts 4.5–24 V; powers internal logic and RF transmitter; requires local 0.1 µF + 10 µF bypassing. |
| IN+ | Non-inverting input | Active-high gate control signal; used with IN– held low for standard PWM interface to MCU. |
| IN– | Inverting input | Active-low gate control signal; tied to VDDA for inverted operation; both inputs support CMOS-level drive. |
| RSTb | Active-low reset | Clears DESAT fault latching; must be pulsed low ≥350 ns after FLTb assertion to restore operation. |
| RDY | Power-ready indicator | Push-pull output goes high only when both VDDA and VDDB exceed UVLO thresholds; requires 10 kΩ pulldown. |
| /FLT | Fault indicator | Open-drain output pulled low on DESAT, UVLO, or internal fault; shared across multiple drivers via OR-wiring. |
| VH | High-side gate drive output | Sinks current during turn-off; connects to gate via external RH resistor to enable soft-shutdown discharge path. |
| VL | Low-side gate drive output | Sources current during turn-on; separates pull-up/pull-down paths for independent gate resistor tuning. |
| DSAT | Desaturation sense input | Monitors VCE/VDS via external RDSAT/DDSAT; triggers shutdown if voltage exceeds 7 V (220 mV hysteresis). |
| CLMP | Miller clamp control | Activates internal NMOS to clamp gate to VMID during high dV/dt, preventing parasitic turn-on in half-bridge topologies. |
| VMID | Reference node for VDDB/VSNS | Common return for secondary-side supply and desat sensing; shorted to VSSB unless negative gate bias is used. |
| VDDB | Secondary-side supply output | Regulated output of integrated DC-DC (up to 30 V); powers gate driver stage and requires 0.1 µF + 10 µF local decoupling. |
| VSSB | Secondary-side ground | Return path for VDDB and gate drive outputs; tied to VMID unless negative bias configuration is implemented. |
| SH/FC | Shutdown/frequency control | Configures DC-DC shutdown mode and switching frequency (Si8283/Si8284 variant feature; enabled on SI8286CC-ASR). |
| SS | Soft-start control | Adjusts DC-DC startup ramp rate to limit inrush current into transformer and output capacitors. |
| COMP | DC-DC error amplifier output | Provides access to internal compensation node for stability tuning with external RC network. |
| GNDA | Primary-side ground | Logic ground reference for VDDA, IN+, IN–, RSTb, RDY, and /FLT; must be separated from power ground. |
| GNDP | Primary-side power ground | Ground return for internal DC-DC controller and ESW driver; isolated from GNDA by silicon barrier. |
| ESW | External switch driver | Drives external MOSFET in Si8284-style DC-DC topology; confirms SI8286CC-ASR uses external switch configuration. |
| VSNS | Voltage sense input | Feedback node for DC-DC regulation; connected to VDDB via resistive divider to set output voltage. |
| NC | No-connect | Two pins marked NC; must remain unconnected per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DESAT protection | 7 V threshold with 220 mV hysteresis and programmable blanking via external CBL; eliminates need for discrete comparator and timing circuitry. |
| Soft shutdown on fault | Controlled gate discharge through VH/RH path limits dV/dt during fault recovery, preventing secondary breakdown in SiC FETs. |
| Reinforced insulation system | 5.0 kVrms isolation + 125 kV/µs CMTI + AEC-Q100 Grade 1 qualification; satisfies functional safety requirements for ASIL-B/C traction systems. |
| Programmable DC-DC controller | Adjustable frequency, soft-start, and shutdown via SH/FC and SS pins; enables EMI optimization and inrush control in space-constrained OBC designs. |
| Dual independent gate outputs | VH and VL pins allow asymmetric gate resistor selection (e.g., 2.2 Ω turn-on / 10 Ω turn-off) to independently tune SiC FET rise/fall times and switching losses. |
| Miller clamp with VMID reference | Internal NMOS clamps gate to VMID during high dV/dt events; prevents shoot-through in half-bridge configurations without external transistor. |
Applications
| Traction Inverter | On-Board Charger (OBC) |
|---|---|
|
Use Scenario: High-power bidirectional AC/DC and DC/AC conversion in 800 V electric vehicle platforms with SiC-based power modules. IC Role / Device Role / Timing Role: Isolated gate driver providing 4 A peak current to upper/lower half-bridge SiC FETs while monitoring VDS for desaturation during torque transients. Use Value: Enables 100+ kHz switching with <1 µs fault response, reducing inverter size and improving system efficiency by >2% versus optocoupler-based solutions. |
Use Scenario: Isolated DC-DC stage in 11 kW bidirectional OBCs converting grid AC to battery DC and vice versa using SiC MOSFETs. IC Role / Device Role / Timing Role: Gate driver with integrated 30 V DC-DC supply and soft-start, eliminating need for auxiliary isolated bias rails and reducing BOM count by 3–4 components. Use Value: Reduces thermal stress on gate drivers during cold-start OBC operation via programmable soft-start, extending reliability in repeated plug/unplug cycles. |
| Industrial Motor Drive | Renewable Energy Inverter |
|
Use Scenario: Variable-frequency drives for HVAC compressors and industrial pumps operating at 400–690 V AC bus with SiC or IGBT power stages. IC Role / Device Role / Timing Role: Dual-output isolated driver delivering precise timing control to IGBTs with integrated Miller clamp to suppress parasitic turn-on during 10 kV/µs common-mode noise. Use Value: Eliminates external Miller clamp transistors and associated gate loop inductance, improving noise immunity and reducing PCB area by ~15 mm² per channel. |
Use Scenario: Central string inverters for solar farms converting DC from photovoltaic arrays to grid-synchronized AC using SiC FETs in three-level topologies. IC Role / Device Role / Timing Role: System-safety gate driver with RDY/FLTb signaling and AEC-Q100 qualification, enabling reuse of automotive-grade components in harsh outdoor environments. Use Value: Provides long-term reliability certification (AEC-Q100) and reinforced insulation (IEC 62368-1) required for 25-year field deployments in utility-scale solar installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated SiC gate drive applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8284CC-ASR | Same 24-pin WB SOIC package, 5.0 kVrms isolation, 13 V UVLO, and external-switch DC-DC-but lacks automotive PPAP documentation support and IMDS/CAMDS listing. | Valid for industrial inverters but not certified for automotive production release; no AIAG-compliant PPAP or material data system reporting. | Select SI8284CC-ASR only for non-automotive programs where AEC-Q100 compliance is not required and cost sensitivity outweighs traceability needs. |
| UCC5870QDWJRQ1 | Texas Instruments part with 5.7 kVrms isolation, 10 A peak drive, and integrated current sensing-but requires external DC-DC and has no DESAT blanking capacitor interface. | Supports higher current SiC modules but adds complexity with external isolated supply and separate fault detection circuitry. | Choose UCC5870QDWJRQ1 when driving >100 mΩ SiC FETs needing >6 A peak current, accepting added BOM and layout effort for enhanced sensing capability. |
Compared with SI8286CC-ASR, SI8284CC-ASR offers identical electrical performance but lacks automotive traceability, while UCC5870QDWJRQ1 trades integrated safety features for higher drive strength and sensing flexibility-making SI8286CC-ASR optimal for production-critical EV traction systems requiring zero-defect manufacturing evidence.
Availability
SI8286CC-ASR is available at Aetrix Electronics and suitable for traction inverters, on-board chargers, and industrial motor drives requiring stable component supply, automotive-grade traceability, and reinforced insulation compliance.
Supply support for SI8286CC-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 semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, isolation, and power management technologies.
The Si828x product line was engineered for high-reliability SiC and IGBT gate drive in automotive electrification and industrial energy conversion, emphasizing integrated safety, reinforced insulation, and system-level fault management.
FAQ
What is the isolation rating and safety certification status of SI8286CC-ASR?
SI8286CC-ASR is UL 1577 recognized for 5.0 kVrms withstand voltage (1 minute), and certified to IEC 62368-1 (reinforced insulation) by VDE and CSA. It is AEC-Q100 Grade 1 qualified, with full PPAP documentation, IMDS, and CAMDS support-meeting all requirements for ASIL-B automotive powertrain systems.
Does SI8286CC-ASR support external DC-DC switch configuration?
Yes, SI8286CC-ASR uses the Si8284-style external-switch DC-DC architecture, confirmed by its ESW pin presence and ordering guide mapping. This allows higher input voltage tolerance (up to 24 V) and greater output power than internal-switch variants like SI8283, making it suitable for 11 kW OBC applications.
How does the desaturation detection work on SI8286CC-ASR, and what external components are required?
SI8286CC-ASR monitors VDS/VCE via the DSAT pin using a 7 V threshold (220 mV hysteresis). It requires three external components: RDSAT (100 Ω), DDSAT (fast diode), and CBL (blanking capacitor, typically 220–270 pF for SiC). These must be placed adjacent to the power switch and DSAT pin to ensure sub-µs response.
What is the purpose of the CLMP pin on SI8286CC-ASR, and how is it implemented?
The CLMP pin on SI8286CC-ASR activates an internal NMOS transistor that clamps the gate to VMID during high dV/dt events, suppressing Miller-induced parasitic turn-on in half-bridge configurations. No external transistor is needed-this integrated function replaces discrete Miller clamp circuits and improves layout robustness.
Can SI8286CC-ASR drive both SiC FETs and IGBTs, and what UVLO settings are supported?
Yes, SI8286CC-ASR supports both SiC FETs and IGBTs. Its UVLO threshold is fixed at 13 V (VDDB–VMID), optimized for 12–15 V SiC gate bias rails. Unlike some variants offering 9/12/15 V options, SI8286CC-ASR's "CC" suffix denotes the 13 V UVLO version-verified in Table 1.1 of the Si828x Ordering Guide.
SI8286CC-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
- Number of Channels:
- 1
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 125kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 50ns, 50ns
- Pulse Width Distortion (Max):
- 5ns
- Rise / Fall Time (Typ):
- 5.5ns, 8.5ns
- Current - Output High, Low:
- 2A, 4.1A
- Current - Peak Output:
- 4A
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- 13.2V ~ 30V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
- Approval Agency:
- CQC, CSA, UL, VDE
SI8286CC-ASR FAQ
1.How can I place an order for SI8286CC-ASR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8286CC-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 SI8286CC-ASR reliable?
The price and inventory of SI8286CC-ASR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8286CC-ASR is usually 5 days.
3.What payment methods are accepted for SI8286CC-ASR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8286CC-ASR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8286CC-ASR?
SI8286CC-ASR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8286CC-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 SI8286CC-ASR?
For technical support, including SI8286CC-ASR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8286CC-ASR requirements.
6.How does Aetrix verify that SI8286CC-ASR is sourced from the original manufacturer or authorized distributors?
All SI8286CC-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 SI8286CC-ASR meets industry standards.
7.What is the process for return or replacement of SI8286CC-ASR?
All SI8286CC-ASR units undergo pre-shipment inspection (PSI). If there is an issue with SI8286CC-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 SI8286CC-ASR part is unused and in its original packaging.
Return procedure for SI8286CC-ASR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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