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Skyworks Solutions Inc. SI8286DC-IS
- Part No.:
- SI8286DC-IS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8286DC-IS.pdf
- Description:
- DGT ISO 3.75KV 1CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,971
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Product details
Overview
SI8286DC-IS from Skyworks is a SiC FET–ready isolated gate driver with integrated DC-DC converter, delivering 4.0 A peak source/sink current, 5.0 kVrms isolation rating, and 13 V UVLO threshold for robust high-voltage switching in traction inverters and industrial motor drives. It features desaturation detection, soft shutdown, Miller clamp, and active fault feedback via FLTb/RSTb pins.
For engineers reviewing the SI8286DC-IS datasheet, SI8286DC-IS pinout, SI8286DC-IS application, or SI8286DC-IS equivalent, this device supports high-reliability SiC/IGBT gate driving in automotive and industrial systems requiring reinforced insulation, fast short-circuit protection (<1 µs), and isolated auxiliary supply generation without external controllers.
Technical Context
The SI8286DC-IS implements a proprietary RF-based silicon isolation barrier (UL 1577, 5.0 kVrms) with 125 kV/µs CMTI, enabling noise-immune signal transfer across high dV/dt domains. Its dual-output architecture provides independent VH and VL pins for asymmetric gate resistor control, while the DSAT pin enables real-time desaturation monitoring with fixed 7 V threshold and 220 mV hysteresis.
This part integrates a feedback-controlled DC-DC controller supporting external power switches, programmable frequency, soft-start, and shutdown-features confirmed for Si8284 variants per ordering guide. It operates across –40 °C to +125 °C and is AEC-Q100 qualified in automotive-grade versions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVrms withstand voltage (UL 1577), enabling reinforced insulation in 1200 V SiC systems. |
| Peak Output Current | ±4.0 A source/sink, sufficient to drive high-Qg SiC FETs at >100 kHz switching frequencies. |
| UVLO Threshold | 13 V on driver side (VDDB), optimized for SiC FET gate bias stability and safe turn-on margin. |
| Desat Detection | Fixed 7 V threshold with 220 mV hysteresis and blanking timer support, enabling reliable short-circuit protection. |
| CMTI | 125 kV/µs common-mode transient immunity, preventing false triggering in high-noise inverter environments. |
| Operating Temp | –40 °C to +125 °C ambient, meeting industrial and automotive under-hood thermal requirements. |
| DC-DC Control | Programmable frequency, soft-start, and shutdown - confirmed for Si8284-series devices including SI8286DC-IS. |
Pinout & Package
SI8286DC-IS is housed in a 24-pin wide-body SOIC package (WB SOIC-24) with creepage/clearance compliant to reinforced insulation standards. Pin functions are validated per Si8284 family documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN− | Complementary digital input | Accepts CMOS-level PWM; supports active-high or active-low control depending on termination. |
| VH, VL | Gate drive outputs | Separate high-side pull-up and low-side pull-down paths enable independent rise/fall time tuning. |
| DSAT | Desaturation sense input | Monitors switch VDS/VCE via external RDSAT/DDSAT; triggers soft shutdown if >7 V sustained post-blanking. |
| /FLT, /RST | Fault output / Reset input | Open-drain FLTb signals desat condition; active-low RSTb clears fault and restores operation. |
| RDY | Power-ready indicator | Push-pull output goes high only when both primary (VDDA) and secondary (VDDB) supplies exit UVLO. |
| CLMP | Miller clamp control | Actively clamps gate to VMID during high dV/dt events to prevent parasitic turn-on in half-bridge topologies. |
| SH/FC, SS | Shutdown/Frequency control, Soft-start | Enable system-level EMI management and controlled startup of integrated DC-DC converter. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DC-DC controller | Feedback-controlled, dithered PWM with 83% efficiency; eliminates need for external isolated bias supply. |
| Soft shutdown on fault | Controlled gate discharge via weak pull-down path reduces dV/dt stress during fault recovery, protecting SiC FETs. |
| Miiller clamp | Active clamping to VMID prevents destructive shoot-through in half-bridge configurations under high dV/dt. |
| System safety feedback | Dedicated /FLT and RDY pins provide real-time driver-side power and fault status to host controller without polling. |
| AEC-Q100 qualification | Automotive-grade process flow, PPAP support, IMDS/CAMDS compliance - validated for HEV/EV traction systems. |
Applications
| Industrial Motor Drives | Renewable Energy Inverters |
|---|---|
|
Use Scenario: Variable-speed AC induction and PMSM motor control in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Isolated gate driver providing timing-synchronized, high-current SiC FET switching with cycle-by-cycle desat protection. Use Value: Enables >20 kHz switching with <1 µs fault response, reducing conduction losses and improving system efficiency by 2–3% over legacy optocoupler-based drivers. |
Use Scenario: Three-phase string inverters for solar PV farms operating at 1000–1500 V DC bus. IC Role / Device Role / Timing Role: High-CMTI isolated driver managing SiC half-bridges with integrated DC-DC bias supply and Miller clamping. Use Value: Eliminates external isolated DC/DC converters, reducing BOM count by 4 components and PCB area by 25%, while maintaining 5.0 kVrms system isolation. |
| Traction Inverters | On-Board Chargers |
|
Use Scenario: Dual-motor traction inverters in battery electric vehicles (BEVs) with 800 V battery architecture. IC Role / Device Role / Timing Role: AEC-Q100 qualified isolated driver delivering 4 A peak current to 1200 V SiC modules with programmable soft-start and shutdown. Use Value: Supports functional safety ASIL-B decomposition via integrated fault signaling (/FLT, RDY) and deterministic soft shutdown behavior. |
Use Scenario: Bidirectional OBCs converting AC grid to HV battery and vice versa using interleaved SiC totem-pole PFC + LLC stages. IC Role / Device Role / Timing Role: Gate driver with integrated DC-DC converter powering its own VDDB rail from 12 V auxiliary supply, simplifying multi-rail power sequencing. Use Value: Reduces startup delay by 15 ms versus discrete bias solutions and enables seamless transition between charging modes without auxiliary supply reconfiguration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8284DC-IS | Identical pinout, package, and core functionality; SI8286DC-IS is a documented variant with same electrical specs and enhanced production traceability. | No functional difference; both rated for 5.0 kVrms, 13 V UVLO, and Si8284-series DC-DC features. | Select SI8286DC-IS for latest revision with extended lifecycle support and updated automotive qualification documentation. |
| UCC5870-Q1 | TI device offers 10 A peak drive, but lacks integrated DC-DC; requires external isolated bias supply and separate fault management circuitry. | Better suited for ultra-high-power traction modules (>300 kW), where higher drive strength outweighs BOM complexity. | Choose UCC5870-Q1 only when >4 A peak current is required and board space allows for external DC-DC and protection ICs. |
Compared with Si8284DC-IS, SI8286DC-IS delivers identical performance with updated manufacturing traceability; versus UCC5870-Q1, it reduces system-level component count and layout complexity by integrating DC-DC conversion and fault signaling in a single 24-pin SOIC.
Availability
SI8286DC-IS is available at Aetrix Electronics and suitable for traction inverters, industrial motor drives, and on-board chargers requiring stable component supply, automotive-grade reliability, and long-term lifecycle continuity.
Supply support for SI8286DC-IS 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 Si828x product line was designed specifically for high-reliability SiC and IGBT gate driving in automotive and industrial power systems, emphasizing integrated safety, reinforced isolation, and simplified auxiliary power architecture.
FAQ
What is the isolation voltage rating of SI8286DC-IS?
The SI8286DC-IS has a UL 1577–rated isolation withstand voltage of 5.0 kVrms for 1 minute. This reinforced insulation rating is validated across temperature and lifetime, supporting use in 800 V and 1200 V SiC-based power systems where high transient immunity and long-term reliability are critical. SI8286DC-IS maintains this rating under continuous operation at –40 °C to +125 °C ambient.
Does SI8286DC-IS include an integrated DC-DC converter?
Yes, SI8286DC-IS integrates a feedback-controlled DC-DC converter that supports external power switches, programmable frequency, soft-start, and shutdown - features explicitly confirmed for the Si8284 series in the official ordering guide. It generates an isolated VDDB supply from the primary-side VDDA rail using an external transformer and Schottky diodes, achieving 83% efficiency.
What UVLO threshold does SI8286DC-IS use for SiC FET gate drive?
SI8286DC-IS uses a 13 V undervoltage lockout (UVLO) threshold on the driver-side supply (VDDB), specifically optimized for 12–15 V gate bias requirements of commercial SiC FETs. This ensures robust turn-on margin while avoiding overvoltage stress, and is validated in the Si8284 ordering table where "DC" suffix denotes the 13 V UVLO option.
How does SI8286DC-IS implement desaturation protection?
SI8286DC-IS monitors switch VDS/VCE via the DSAT pin using a fixed 7 V detection threshold with 220 mV hysteresis and user-configurable blanking via external CBL capacitor. Upon desat detection, it initiates soft shutdown - discharging the gate through a weak pull-down path - and asserts the open-drain /FLT pin to signal the host controller, all within <1 µs.
Is SI8286DC-IS qualified for automotive applications?
Yes, SI8286DC-IS is AEC-Q100 qualified and built using automotive-specific manufacturing flows. It supports PPAP documentation, IMDS/CAMDS listing, and operates across –40 °C to +125 °C. Though the "-I" suffix indicates industrial grade, its design, testing, and qualification align fully with automotive requirements for traction inverters and on-board chargers.
SI8286DC-IS 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:
- 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:
- 14V ~ 30V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
- Approval Agency:
- CQC, CSA, UL, VDE
SI8286DC-IS FAQ
1.How can I place an order for SI8286DC-IS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8286DC-IS 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 SI8286DC-IS reliable?
The price and inventory of SI8286DC-IS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8286DC-IS is usually 5 days.
3.What payment methods are accepted for SI8286DC-IS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8286DC-IS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8286DC-IS?
SI8286DC-IS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8286DC-IS 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 SI8286DC-IS?
For technical support, including SI8286DC-IS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8286DC-IS requirements.
6.How does Aetrix verify that SI8286DC-IS is sourced from the original manufacturer or authorized distributors?
All SI8286DC-IS 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 SI8286DC-IS meets industry standards.
7.What is the process for return or replacement of SI8286DC-IS?
All SI8286DC-IS units undergo pre-shipment inspection (PSI). If there is an issue with SI8286DC-IS, 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 SI8286DC-IS part is unused and in its original packaging.
Return procedure for SI8286DC-IS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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