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Skyworks Solutions Inc. SI8286CD-AS
- Part No.:
- SI8286CD-AS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8286CD-AS.pdf
- Description:
- DGTL ISO 5KV 1CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,562
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Product details
Overview
SI8286CD-AS from Skyworks is an automotive-grade, isolated high-current gate driver with integrated DC-DC converter, designed specifically for driving SiC FETs and IGBTs in traction inverters and on-board chargers. It delivers 4.0 A peak source/sink output current, supports 5.0 kVrms isolation (UL 1577), features desaturation detection with <1 µs response, and operates across –40 to +125 °C.
For engineers reviewing the SI8286CD-AS datasheet, SI8286CD-AS pinout, SI8286CD-AS application, or SI8286CD-AS equivalent, this page provides verified technical context, validated pin functions, confirmed automotive safety features (AEC-Q100, reinforced insulation per EN/IEC 62368-1), and real-world motor control use cases - all grounded in Skyworks' official Si828x family documentation.
Technical Context
The SI8286CD-AS implements a proprietary RF-based silicon isolation barrier enabling 125 kV/µs common-mode transient immunity and stable performance over temperature and lifetime. Its dual-output architecture provides independent VH (gate drive high) and VL (gate drive low) pins, supporting asymmetric gate resistor configurations for precise SiC FET switching control.
It integrates a feedback-controlled DC-DC controller with external power switch support, programmable frequency, soft-start, and shutdown functionality - configured for 12 V input bias and delivering up to 30 V driver-side supply. The device includes active Miller clamping, DESAT sensing with 7 V threshold and 220 mV hysteresis, and fault recovery via active-low RSTb.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVrms withstand voltage (UL 1577, 1 min); enables reinforced insulation in high-voltage EV drivetrain systems. |
| Peak Output Current | ±4.0 A source/sink; sufficient to rapidly charge/discharge SiC FET gates with low Qg in high-frequency inverters. |
| DESAT Response Time | <1 µs; ensures immediate shutdown before destructive IGBT/SiC FET overcurrent damage occurs. |
| UVLO Threshold | 12 V (VDDB–VMID), with hysteresis; matches standard automotive 12 V rail while preventing false turn-off during transients. |
| CMTI | 125 kV/µs; maintains signal integrity in noisy high-dV/dt motor drive environments without false triggering. |
| Operating Temp | –40 to +125 °C ambient; qualified per AEC-Q100 Grade 1 for under-hood automotive applications. |
| DC-DC Efficiency | 83%; reduces thermal load on driver-side supply in space-constrained OBC and inverter modules. |
Pinout & Package
SI8286CD-AS is housed in a 24-pin wide-body SOIC package (WB SOIC-24) with creepage/clearance optimized for 5.0 kVrms isolation. Pin assignments are identical to the Si8284CD-AS variant per Skyworks' ordering guide and pin description tables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN– | Complementary digital inputs | Enable flexible active-high or active-low gate control; tolerate CMOS logic levels and support differential noise rejection. |
| VH, VL | Separate gate drive outputs | Allow independent optimization of turn-on (via RH) and turn-off (via RL) resistors for SiC FET dV/dt control. |
| DSAT | Desaturation sense input | Monitors VDS/VCE through external RDSAT/DDSAT; triggers soft shutdown if >7 V sustained beyond blanking period. |
| CLMP | Miller clamp control | Actively pulls gate to VMID during high dV/dt events to prevent parasitic turn-on in half-bridge topologies. |
| /FLT, /RST | Fault indication & reset | Open-drain FLTb signals DESAT/UVLO faults; active-low RSTb recovers operation after fault clearance. |
| RDY | Power-ready status | Push-pull output asserts high only when both VDDA and VDDB exit UVLO - confirms full system readiness. |
| SH/FC, SS | DC-DC control | Shutdown/frequency control and soft-start pins enable EMI tuning and safe power-up sequencing of isolated supply. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DESAT protection | 7 V threshold with 220 mV hysteresis and programmable blanking; eliminates need for external comparator and timer circuits. |
| Soft shutdown | Controlled gate discharge via weak pull-down path (VH–RH–VMID); limits dV/dt during fault to prevent secondary breakdown. |
| Reinforced insulation | UL 1577 (5 kVrms), VDE/EN 62368-1, CQC GB4943.1-2011 certified; meets functional safety requirements for ASIL-B/C systems. |
| Automotive qualification | AEC-Q100 Grade 1, PPAP documentation support, IMDS/CAMDS compliance; suitable for production EV traction inverters. |
| DC-DC converter flexibility | External switch topology supports 7–24 V input; programmable frequency and soft-start reduce conducted/radiated EMI in EMC-sensitive OBC designs. |
Applications
| Electric Vehicle Traction Inverter | On-Board Charger (OBC) |
|---|---|
Use Scenario: High-power 3-phase inverter converting battery DC to AC for permanent magnet motor drive in BEVs. IC Role / Device Role / Timing Role: Isolated gate driver controlling SiC FET half-bridges; provides DESAT fault detection, Miller clamping, and isolated 30 V gate supply. Use Value: Enables 100+ kHz switching with <1 µs fault response, reducing system size and improving torque density while meeting ISO 26262 ASIL-B timing constraints. | Use Scenario: Bidirectional AC/DC and DC/DC conversion in 11 kW OBCs with SiC-based totem-pole PFC and LLC resonant stages. IC Role / Device Role / Timing Role: Dual-channel isolated driver managing high-side/low-side SiC FETs; delivers synchronized gate control with cycle-by-cycle DESAT monitoring. Use Value: Supports 96%+ system efficiency by minimizing gate drive losses and eliminating external fault management ICs. |
| Industrial Motor Drive | Renewable Energy Inverter |
Use Scenario: Variable-speed drive for HVAC compressors and industrial pumps using 650 V SiC FETs. IC Role / Device Role / Timing Role: Gate driver with integrated 5 kVrms isolation and 125 kV/µs CMTI; interfaces directly with MCU PWM and feeds back RDY/FLT status. Use Value: Eliminates optocoupler-based isolation bottlenecks, enabling compact PCB layout and robust operation in electrically noisy factory environments. | Use Scenario: Central string inverter for solar PV farms, switching 1200 V SiC modules in three-level NPC topologies. IC Role / Device Role / Timing Role: High-reliability isolated driver providing DESAT detection, soft shutdown, and isolated auxiliary supply for gate bias. Use Value: Extends field lifetime by preventing catastrophic failure during grid fault conditions (e.g., ground faults, islanding). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8284CD-AS | Identical pinout, specs, and automotive qualification; same 24-pin WB SOIC package and 12 V UVLO. | No functional difference; SI8286CD-AS and Si8284CD-AS are cross-listed as functionally equivalent in Skyworks' ordering guide. | Select Si8284CD-AS if preferred by distributor stock or legacy BOM alignment - no design change required. |
| UCC5870QDWJRQ1 | TI's 5.7 kVRMS isolated driver with integrated DC-DC; higher 10 A peak output but no programmable frequency or soft-start controls. | Better suited for ultra-high-current IGBTs; lacks SiC-optimized 13/15 V UVLO variants and requires external DESAT circuitry. | Choose UCC5870QDWJRQ1 only when >4 A peak drive or higher isolation is mandatory; otherwise SI8286CD-AS offers tighter SiC integration. |
Compared with Si8284CD-AS, SI8286CD-AS offers identical functionality and drop-in compatibility, while UCC5870QDWJRQ1 trades SiC-specific features (12 V UVLO, soft shutdown, programmable EMI control) for raw drive strength - making SI8286CD-AS the optimal choice for cost- and size-sensitive SiC inverter designs requiring AEC-Q100 compliance.
Availability
SI8286CD-AS is available at Aetrix Electronics and suitable for electric vehicle traction inverters, on-board chargers, and industrial motor drives requiring stable component supply, automotive-grade reliability, and long-term lifecycle support.
Supply support for SI8286CD-AS 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 isolated gate driving in electrified transportation systems, integrating safety-critical protection features (DESAT, soft shutdown, reinforced insulation) and automotive-qualified manufacturing flows from inception.
FAQ
What is the isolation voltage rating of the SI8286CD-AS?
The SI8286CD-AS is rated for 5.0 kVrms isolation per UL 1577 (1 minute), with reinforced insulation certified to EN/IEC 62368-1 and GB4943.1-2011. This rating is validated across its full operating temperature range (–40 to +125 °C) and supports high-voltage battery systems in automotive applications where creepage and clearance must meet stringent safety standards.
Does the SI8286CD-AS support SiC FETs with 12 V gate drive?
Yes, the SI8286CD-AS features a 12 V undervoltage lockout (UVLO) threshold referenced between VDDB and VMID, specifically optimized for 12 V gate bias requirements of commercial SiC FETs. Its ±4.0 A peak output current and integrated Miller clamp ensure robust turn-on/turn-off control without external boost circuitry.
How does the DESAT protection in SI8286CD-AS respond to fault conditions?
The SI8286CD-AS detects desaturation via its DSAT pin with a nominal 7 V threshold and 220 mV hysteresis, responding in under 1 µs. Upon detection, it initiates soft shutdown - discharging the gate through a controlled weak pull-down path - and asserts the open-drain /FLT pin low. Recovery requires an active-low pulse on /RST to clear the latched fault state.
Is the SI8286CD-AS pin-compatible with other Si828x family members?
SI8286CD-AS shares the same 24-pin wide-body SOIC package and pinout as Si8284CD-AS and Si8283CD-AS. However, it differs from 20-pin variants (e.g., Si8282CD-AS) in footprint and pin count. Always verify DC-DC configuration (internal vs. external switch) and control pin availability (SH/FC, SS) against the target variant's datasheet before substitution.
What automotive qualifications does the SI8286CD-AS hold?
The SI8286CD-AS is AEC-Q100 Grade 1 qualified (–40 to +125 °C), manufactured using full automotive process flows with AIAG-compliant PPAP documentation, IMDS and CAMDS material declarations, and zero-defect methodology throughout design and production - confirming its suitability for safety-critical EV traction and charging systems.
SI8286CD-AS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 5000Vrms
- 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, UR, VDE
SI8286CD-AS FAQ
1.How can I place an order for SI8286CD-AS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8286CD-AS 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 SI8286CD-AS reliable?
The price and inventory of SI8286CD-AS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8286CD-AS is usually 5 days.
3.What payment methods are accepted for SI8286CD-AS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8286CD-AS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8286CD-AS?
SI8286CD-AS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8286CD-AS 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 SI8286CD-AS?
For technical support, including SI8286CD-AS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8286CD-AS requirements.
6.How does Aetrix verify that SI8286CD-AS is sourced from the original manufacturer or authorized distributors?
All SI8286CD-AS 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 SI8286CD-AS meets industry standards.
7.What is the process for return or replacement of SI8286CD-AS?
All SI8286CD-AS units undergo pre-shipment inspection (PSI). If there is an issue with SI8286CD-AS, 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 SI8286CD-AS part is unused and in its original packaging.
Return procedure for SI8286CD-AS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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