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Skyworks Solutions Inc. SI8286CD-ASR
- Part No.:
- SI8286CD-ASR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8286CD-ASR.pdf
- Description:
- DGTL ISO 5KV 1CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,591
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Product details
Overview
SI8286CD-ASR from Skyworks is an automotive-grade, isolated high-current gate driver IC with integrated DC-DC converter, designed specifically for driving SiC FETs and IGBTs in traction inverters and on-board chargers. It delivers 4 A peak source/sink output current, supports 5.0 kVrms isolation (UL 1577), features DESAT detection with <1 µs response, and operates across –40 to +125 °C.
For engineers reviewing the SI8286CD-ASR datasheet, SI8286CD-ASR pinout, SI8286CD-ASR application, or SI8286CD-ASR equivalent, this page provides verified technical context, validated pin functions, confirmed SiC-optimized safety features (UVLO at 12 V, soft shutdown, Miller clamp), and real-world automotive power stage integration guidance - all specific to the SI8286CD-ASR variant.
Technical Context
The SI8286CD-ASR implements a proprietary RF-based silicon isolation barrier enabling 125 kV/µs common-mode transient immunity and reinforced insulation per EN/IEC/VDE 62368-1. Its dual-channel architecture separates input logic (IN+/IN– complementary interface) from isolated driver outputs (VH/VL) and integrates feedback-controlled DC-DC conversion using an external power switch.
This variant belongs to the Si828x family's "D" UVLO group (12 V driver-side undervoltage lockout threshold), includes shutdown, soft-start, and programmable frequency controls, and uses a 24-pin wide-body SOIC package with 5.0 kVrms isolation rating - distinguishing it from 3.75 kVrms variants and internal-switch configurations like Si8281/Si8283.
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 automotive systems up to 1000 VDC bus. |
| Output Drive Current | ±4 A peak source/sink; sufficient to rapidly charge/discharge SiC FET gates with low Qg in high-frequency traction inverters. |
| UVLO Threshold | 12 V (VDDB–VMID); precisely matches SiC FET gate drive requirements and prevents unsafe operation during brownout. |
| DESAT Response Time | <1 µs; ensures immediate fault shutdown before destructive IGBT/SiC FET overcurrent damage occurs. |
| CMTI | 125 kV/µs; maintains signal integrity under extreme dV/dt noise in motor drives and fast-switching SiC converters. |
| DC-DC Configuration | External power switch support; allows high-input-voltage operation (e.g., 12 V automotive rail) and scalable isolated bias supply design. |
| Operating Temperature | –40 to +125 °C ambient; qualified per AEC-Q100 Grade 1 for under-hood automotive applications. |
Pinout & Package
SI8286CD-ASR is housed in a 24-pin wide-body SOIC package (WB SOIC-24) with creepage/clearance optimized for 5.0 kVrms isolation. Pin layout follows Skyworks' standard Si828x 24-pin configuration, supporting complementary inputs, separate VH/VL outputs, DESAT sensing, Miller clamp, and full DC-DC control interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN– | Complementary digital input pair | Accepts CMOS-level PWM signals; enables active-high or active-low control without external inverters. |
| VH, VL | High-side and low-side gate drive outputs | Separate pins allow independent gate resistor selection to tune SiC FET rise/fall times and minimize switching losses. |
| DSAT | Desaturation sense input | Monitors VDS/VCE via external RDSAT/DDSAT; triggers soft shutdown within <1 µs if saturation loss is detected. |
| CLMP | Miller clamp control terminal | Actively clamps gate to VMID during high dV/dt events, preventing parasitic turn-on in half-bridge SiC FET configurations. |
| /FLT, /RST, RDY | Fault indication, reset, and power-ready signals | Open-drain FLTb and active-low RSTb enable system-level fault coordination; push-pull RDY confirms both sides powered. |
| SH/FC, SS, COMP | DC-DC control interface | Supports shutdown, programmable frequency, soft-start, and compensation - essential for EMI-optimized isolated bias supply design. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DESAT protection | Hardware-based desaturation detection with fixed 7 V threshold and 220 mV hysteresis - eliminates need for external comparators or timing circuits. |
| Soft shutdown on fault | Controlled gate discharge via weak pull-down path (VH + RH) reduces dV/dt stress on SiC FETs during fault recovery, preventing secondary breakdown. |
| Mechanically robust isolation | Silicon-based RF isolation barrier delivers stable CMTI >125 kV/µs across temperature and lifetime - outperforming optocoupler-based alternatives. |
| Automotive-qualified DC-DC controller | Feedback-controlled, dithered PWM converter achieves 83% efficiency and low EMI; supports cycle skipping and programmable frequency for system-level noise compliance. |
| AEC-Q100 Grade 1 compliance | Full PPAP documentation, IMDS/CAMDS listing, and zero-defect manufacturing flow - meets OEM requirements for traction inverter gate drivers. |
Applications
| Traction Inverter | On-Board Charger (OBC) |
|---|---|
Use Scenario: High-power bidirectional AC/DC and DC/AC conversion in battery electric vehicles, operating at 800 V bus and >100 kHz switching frequency. IC Role / Device Role / Timing Role: Isolated gate driver for SiC half-bridge modules, providing synchronized VH/VL control, DESAT monitoring, and Miller clamping under 150 kV/µs transients. Use Value: Enables reliable 1700 V SiC FET switching with <1 µs fault response and 5.0 kVrms isolation - critical for ASIL-D functional safety compliance. |
Use Scenario: Dual-phase interleaved PFC and CLLC resonant DC/DC stages in 11–22 kW OBCs, requiring compact isolated bias supplies and robust gate drive. IC Role / Device Role / Timing Role: Integrated gate driver + isolated DC-DC controller, delivering 12 V gate bias and 4 A peak drive from 12 V automotive input rail. Use Value: Reduces BOM count by eliminating discrete isolated DC-DC ICs and external fault management logic - accelerates AEC-Q100-compliant OBC design. |
| Industrial Motor Drive | Renewable Energy Inverter |
Use Scenario: Variable-speed control of permanent magnet synchronous motors in HVAC compressors and industrial pumps, operating at 690 VAC line and 25 kHz PWM. IC Role / Device Role / Timing Role: Gate driver with UVLO (12 V), soft-start, and programmable frequency for EMI optimization in noisy factory environments. Use Value: Maintains gate drive stability during line sags and harmonics; soft-start prevents inrush into transformer-coupled isolated supplies. |
Use Scenario: Central and string inverters for solar PV farms, where high-voltage DC strings (1500 V) demand reinforced insulation and long-term reliability. IC Role / Device Role / Timing Role: Isolated driver for SiC-based three-level NPC topologies, leveraging DSAT sensing and Miller clamp to prevent shoot-through during grid faults. Use Value: 5.0 kVrms isolation and –40 to +125 °C rating ensure 25+ year field life in outdoor enclosures with minimal derating. |
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-ASR | Same UVLO (12 V), package (WB SOIC-24), and 5.0 kVrms rating; identical DC-DC control features (SH/FC, SS, COMP). | Si8284CD-ASR supports external switch DC-DC and includes shutdown/soft-start/frequency control - functionally identical to SI8286CD-ASR per Skyworks ordering guide. | Select Si8284CD-ASR only if cross-reference documentation explicitly lists it as a direct replacement; verify top marking and date code compatibility. |
| UCC5870QDWJRQ1 | TI device offers 5.7 kVRMS isolation, 10 A peak drive, and integrated current sensing - higher drive strength but no integrated DC-DC controller. | Requires external isolated bias supply; suited for designs already using flyback or transformer-based auxiliary rails, not for single-chip bias generation. | Choose UCC5870QDWJRQ1 when higher peak current (>4 A) or integrated current feedback is required; avoid if minimizing BOM count is critical. |
Compared with SI8286CD-ASR, Si8284CD-ASR provides identical gate drive, safety, and DC-DC functionality in the same package, while UCC5870QDWJRQ1 trades integrated bias generation for higher drive capability and external supply dependency - making SI8286CD-ASR optimal for space-constrained automotive SiC systems needing self-contained isolation.
Availability
SI8286CD-ASR is available at Aetrix Electronics and suitable for traction inverters, on-board chargers, and industrial motor drives requiring stable component supply, AEC-Q100 qualification, and long-term automotive lifecycle support.
Supply support for SI8286CD-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, timing, and isolation technologies for automotive, industrial, and communications markets.
The SI8286CD-ASR belongs to Skyworks' Si828x isolated gate driver product line, engineered for high-reliability SiC and IGBT power stages in electric vehicle traction systems and high-efficiency renewable energy inverters.
FAQ
What is the isolation voltage rating of the SI8286CD-ASR?
The SI8286CD-ASR has a certified 5.0 kVrms isolation rating per UL 1577 (1 minute), with reinforced insulation approval per EN/IEC/VDE 62368-1. This rating is validated for the WB SOIC-24 package and supports safe operation in 1000 VDC automotive and industrial power systems. The isolation barrier uses Skyworks' proprietary silicon RF technology, not optocouplers or capacitive coupling.
Does the SI8286CD-ASR include an integrated DC-DC converter?
Yes, the SI8286CD-ASR integrates a feedback-controlled DC-DC controller that supports external power switches, enabling efficient isolated bias supply generation from a 12 V automotive rail. It includes dedicated pins (SH/FC, SS, COMP) for shutdown, programmable frequency, soft-start, and loop compensation - eliminating the need for external DC-DC ICs in SiC gate drive designs.
What UVLO threshold does the SI8286CD-ASR use for SiC FET gate drive?
The SI8286CD-ASR uses a 12 V undervoltage lockout (UVLO) threshold referenced between VDDB and VMID, matching the optimal gate drive voltage for 1200 V SiC FETs. This ensures the driver remains disabled until the secondary-side supply reaches a safe level, preventing partial turn-on and device destruction during power-up or brownout conditions.
How does the SI8286CD-ASR implement desaturation protection?
The SI8286CD-ASR implements hardware-based desaturation detection via its DSAT pin, using a fixed 7 V threshold and 220 mV hysteresis. When VDS/VCE exceeds this level during conduction, it triggers a sub-1 µs soft shutdown sequence - discharging the gate through VH and an external RH resistor - while asserting the open-drain /FLT pin to notify the controller.
Is the SI8286CD-ASR qualified for automotive applications?
Yes, the SI8286CD-ASR is AEC-Q100 Grade 1 qualified (–40 to +125 °C), manufactured using automotive-specific process flows, and supported with PPAP documentation, IMDS, and CAMDS listings. Its top marking includes automotive manufacturing codes (N–Z prefix), confirming full compliance for traction inverters, on-board chargers, and other ASIL-B/C automotive subsystems.
SI8286CD-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:
- 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-ASR FAQ
1.How can I place an order for SI8286CD-ASR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8286CD-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 SI8286CD-ASR reliable?
The price and inventory of SI8286CD-ASR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8286CD-ASR is usually 5 days.
3.What payment methods are accepted for SI8286CD-ASR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8286CD-ASR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8286CD-ASR?
SI8286CD-ASR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8286CD-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 SI8286CD-ASR?
For technical support, including SI8286CD-ASR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8286CD-ASR requirements.
6.How does Aetrix verify that SI8286CD-ASR is sourced from the original manufacturer or authorized distributors?
All SI8286CD-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 SI8286CD-ASR meets industry standards.
7.What is the process for return or replacement of SI8286CD-ASR?
All SI8286CD-ASR units undergo pre-shipment inspection (PSI). If there is an issue with SI8286CD-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 SI8286CD-ASR part is unused and in its original packaging.
Return procedure for SI8286CD-ASR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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