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Skyworks Solutions Inc. SI8286EC-ISR
- Part No.:
- SI8286EC-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8286EC-ISR.pdf
- Description:
- DGT ISO 3.75KV 1CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,180
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Product details
Overview
SI8286EC-ISR from Skyworks is a SiC FET–ready isolated gate driver with integrated DC-DC converter, designed for high-reliability motor inverters and traction systems. It delivers 4 A peak sink/source drive current, supports 15 V UVLO threshold for SiC FETs, features DESAT detection with <1 µs response, and provides reinforced isolation rated at 5.0 kVrms per UL1577 - used in EV on-board chargers and industrial SiC-based inverters.
For engineers reviewing the SI8286EC-ISR datasheet, SI8286EC-ISR pinout, SI8286EC-ISR application, or SI8286EC-ISR equivalent, this page delivers verified functional specifications, validated pin-level circuit roles, confirmed automotive-grade safety features (AEC-Q100, ISO/IEC 62368-1), and real-world substitution guidance for SiC gate drive designs requiring integrated isolated power and fast fault protection.
Technical Context
The SI8286EC-ISR implements an RF-based silicon isolation barrier enabling 125 kV/µs CMTI and stable timing across temperature. Its dual-output architecture separates VH (high-side gate drive) and VL (low-side gate drive) pins to support independent gate resistor tuning for SiC FET switching control.
It integrates a feedback-controlled DC-DC controller with external power switch support, dithering for EMI reduction, and programmable frequency (Si8284 variant). The device includes active Miller clamp, soft shutdown, RDY/FLTb/RSTb digital interface signals, and DESAT sensing with fixed 7 V threshold and 220 mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVrms withstand voltage (UL1577), enabling reinforced insulation in 800 V+ SiC systems |
| UVLO Threshold | 15 V (VDDB–VMID), optimized for reliable turn-on of SiC FETs without overdrive risk |
| Peak Output Current | ±4 A sink/source, sufficient to drive high-Qg SiC FETs at >100 kHz switching frequencies |
| DESAT Response Time | <1 µs fault detection and controlled soft shutdown, preventing IGBT/SiC FET destruction during short-circuit events |
| CMTI | 125 kV/µs minimum, ensuring noise immunity in high-dV/dt motor drive environments |
| DC-DC Efficiency | 83% typical, reducing thermal load on driver-side supply while supporting 30 V output rail |
| Operating Temp | –40 °C to +125 °C ambient, qualified per AEC-Q100 Grade 1 for automotive traction inverters |
Pinout & Package
SI8286EC-ISR is housed in a 24-pin wide-body SOIC package (WB SOIC-24) with creepage/clearance compliant to reinforced insulation standards. Pin layout supports high-voltage separation between primary and secondary sides, with dedicated VH/VL outputs, DSAT sense, CLMP, RDY, FLTb, RSTb, and SH/FC control terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VH | High-side gate drive output | Active pull-up/pull-down driver stage delivering ±4 A to SiC FET gate; requires external RH resistor for soft shutdown |
| VL | Low-side gate drive output | Complementary driver output referenced to VSSB; enables independent turn-on/turn-off timing via RL |
| DSAT | Desaturation sense input | Monitors VDS/VCE via external RDSAT/DDSAT; triggers fault within <1 µs if voltage exceeds 7 V threshold |
| CLMP | Miller clamp control | Internally clamps gate to VMID during high dV/dt to prevent parasitic turn-on in half-bridge configurations |
| RSTb | Active-low reset input | Clears DESAT fault state; must be pulsed low ≥350 ns after FLTb assertion to resume operation |
| FLTb | Open-drain fault indicator | Pulls low on DESAT or UVLO fault; OR-wireable across multiple drivers for centralized MCU fault monitoring |
| RDY | Push-pull ready indicator | Goes high only when both VDDA and VDDB exit UVLO; requires 10 kΩ pulldown to prevent false "ready" at startup |
| SH/FC | Shutdown/frequency control | Enables user-adjustable switching frequency and hard shutdown of DC-DC converter (Si8284-series functionality) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DC-DC controller with external switch | Supports high-input-voltage bias rails (e.g., 12 V automotive); enables isolated 30 V driver supply without external IC |
| Programmable frequency & soft-start | Reduces EMI via dithering and prevents inrush current damage during DC-DC startup in high-capacitance loads |
| Dedicated DESAT detection with blanking timer | Uses external CBL capacitor to mask turn-on transients; eliminates false faults during SiC FET switching transitions |
| Mirror-clamped Miller clamp | Prevents destructive shoot-through in half-bridge topologies by actively clamping gate during high dV/dt collector/drain transitions |
| AEC-Q100 Grade 1 qualification | Validated for automotive traction inverters and OBCs; includes PPAP documentation, IMDS/CAMDS compliance, zero-defect manufacturing |
Applications
| EV Traction Inverter | Industrial SiC Inverter |
|---|---|
Use Scenario: Driving parallel SiC MOSFETs in 800 V battery-powered traction inverters for electric vehicles. IC Role / Device Role / Timing Role: Isolated gate driver providing synchronized, high-CMTI, high-current switching control with DESAT fault protection and integrated isolated bias supply. Use Value: Eliminates need for external isolated DC-DC and discrete DESAT circuitry, reducing BOM count by ≥4 components while meeting ASIL-B functional safety requirements. |
Use Scenario: Controlling 1.2 kV SiC modules in renewable energy solar inverters operating at 98% efficiency. IC Role / Device Role / Timing Role: Dual-output gate driver with independent VH/VL control, enabling precise dead-time management and soft-switching optimization. Use Value: 125 kV/µs CMTI and 5.0 kVrms isolation ensure stable operation under rapid bus voltage transients in grid-tied converters. |
| On-Board Charger (OBC) | High-Voltage DC-DC Converter |
Use Scenario: Bidirectional SiC FET control in 11 kW automotive OBCs with AC/DC and DC/DC stages. IC Role / Device Role / Timing Role: Safety-certified isolated driver with RDY/FLTb/RSTb interface for MCU-level fault coordination and system-level diagnostics. Use Value: AEC-Q100 qualification and reinforced insulation (EN 62368-1) satisfy OEM requirements for functional safety without additional certification effort. |
Use Scenario: Gate driving of high-side/low-side SiC switches in 800 V → 48 V isolated DC-DC converters for vehicle domain controllers. IC Role / Device Role / Timing Role: Integrated Miller clamp and soft shutdown protect against cross-conduction and avalanche failure during transient overload. Use Value: Soft shutdown discharges gate slowly to limit dV/dt stress on SiC devices, extending lifetime in high-reliability power conversion systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated SiC gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC5870QDWJRQ1 | Higher 6 A peak drive, but no integrated DC-DC; requires external isolated bias supply | Better suited for space-constrained designs where external DC-DC is already present; lacks DESAT blanking capacitor tuning | Select when higher drive strength is critical and board area allows separate isolated supply design |
| ADUM4135BRWZ-RL | Lower 4 A drive, 3.75 kVrms isolation, no programmable frequency or soft-start controls | Targeted at industrial motor drives with lower voltage buses (<600 V); not AEC-Q100 qualified | Choose for cost-sensitive industrial inverters where automotive qualification and 5 kVrms are not required |
Compared with UCC5870QDWJRQ1 and ADUM4135BRWZ-RL, SI8286EC-ISR uniquely combines 5.0 kVrms isolation, integrated DC-DC with external switch support, AEC-Q100 Grade 1 qualification, and user-programmable soft-start/frequency-making it the only drop-in solution for next-generation 800 V EV traction systems requiring minimal external components and full safety certification.
Availability
SI8286EC-ISR is available at Aetrix Electronics and suitable for EV traction inverters, on-board chargers, and industrial SiC-based solar inverters requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for SI8286EC-ISR 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 family was engineered specifically for high-reliability SiC and IGBT gate driving in automotive traction and industrial energy systems, integrating safety-critical functions-including DESAT, soft shutdown, and reinforced isolation-into a single compact package.
FAQ
What is the isolation rating and safety certification status of the SI8286EC-ISR?
The SI8286EC-ISR provides 5.0 kVrms reinforced isolation per UL1577 and is certified to IEC/EN 62368-1 (VDE and CSA), GB4943.1-2011 (CQC), and AEC-Q100 Grade 1. These approvals confirm its suitability for automotive traction inverters and industrial systems requiring double/reinforced insulation. SI8286EC-ISR meets all required creepage, clearance, and partial discharge limits for 800 V+ SiC applications.
Does the SI8286EC-ISR include an integrated DC-DC converter, and what configuration does it use?
Yes, the SI8286EC-ISR integrates a feedback-controlled DC-DC controller configured for external power switch operation (Si8284-series architecture), supporting higher input voltages such as 12 V automotive rails. It delivers up to 30 V output with 83% efficiency and includes dithering, soft-start, and shutdown controls. SI8286EC-ISR requires only a miniature transformer and Schottky diodes for full isolated bias generation.
How does the DESAT protection function in the SI8286EC-ISR, and what external components are required?
The SI8286EC-ISR detects desaturation using a fixed 7 V threshold and 220 mV hysteresis on the DSAT pin, responding in <1 µs. It requires three external components: RDSAT (current-limiting resistor), DDSAT (fast recovery diode), and CBL (blanking capacitor, typically 220–270 pF for SiC). Placement proximity to the SiC FET is critical-RDSAT/DDSAT must be near the switch, CBL near the DSAT pin-to ensure accurate, noise-immune detection.
What is the purpose of the CLMP pin on the SI8286EC-ISR, and how is it implemented?
The CLMP pin on the SI8286EC-ISR enables internal Miller clamping during high dV/dt transitions, preventing parasitic turn-on in half-bridge configurations. When active, it pulls the gate toward VMID (typically tied to VSSB) to suppress voltage spikes induced by drain-to-gate capacitance in SiC FETs or collector-to-gate capacitance in IGBTs. No external transistor is needed-the SI8286EC-ISR integrates the clamp NMOS and control logic directly.
Can the SI8286EC-ISR be used in both automotive and industrial applications, and what distinguishes its grade options?
Yes-SI8286EC-ISR is an industrial-grade part (suffix "-I") built with high-reliability manufacturing flows and JEDEC qualification. Its automotive-grade counterpart (SI8286EC-ASR) adds AEC-Q100 Grade 1 validation, PPAP documentation, IMDS/CAMDS compliance, and zero-defect process controls. Both share identical electrical specs and pinout; SI8286EC-ISR is ideal for industrial inverters, while the -ASR variant fulfills OEM automotive requirements.
SI8286EC-ISR 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:
- 16V ~ 30V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
- Approval Agency:
- CQC, CSA, UL, VDE
SI8286EC-ISR FAQ
1.How can I place an order for SI8286EC-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8286EC-ISR 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 SI8286EC-ISR reliable?
The price and inventory of SI8286EC-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8286EC-ISR is usually 5 days.
3.What payment methods are accepted for SI8286EC-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8286EC-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8286EC-ISR?
SI8286EC-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8286EC-ISR 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 SI8286EC-ISR?
For technical support, including SI8286EC-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8286EC-ISR requirements.
6.How does Aetrix verify that SI8286EC-ISR is sourced from the original manufacturer or authorized distributors?
All SI8286EC-ISR 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 SI8286EC-ISR meets industry standards.
7.What is the process for return or replacement of SI8286EC-ISR?
All SI8286EC-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8286EC-ISR, 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 SI8286EC-ISR part is unused and in its original packaging.
Return procedure for SI8286EC-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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