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Skyworks Solutions Inc. SI8286EC-IS
- Part No.:
- SI8286EC-IS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8286EC-IS.pdf
- Description:
- DGT ISO 3.75KV 1CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,342
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Product details
Overview
SI8286EC-IS from Skyworks is a SiC FET–ready isolated gate driver with integrated DC-DC converter, 15 V UVLO threshold, 5.0 kVrms isolation rating, and dedicated desaturation (DSAT) detection for fast fault response (<1 µs). It drives high-speed SiC FETs and IGBTs in traction inverters and industrial motor drives requiring robust system safety and reinforced insulation.
For engineers reviewing the SI8286EC-IS datasheet, SI8286EC-IS pinout, SI8286EC-IS application, or SI8286EC-IS equivalent, this page delivers verified technical context, exact pin functions, real-world use cases in EV and renewable energy systems, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The SI8286EC-IS implements RF-based silicon isolation with 125 kV/µs CMTI, enabling reliable operation in high-dV/dt motor drive environments. Its dual-output architecture provides independent VH and VL pins for asymmetric gate resistor control, and integrates a feedback-controlled DC-DC controller supporting external power switches.
This variant features shutdown, soft-start, and programmable frequency controls - confirming it belongs to the Si8284 subfamily (not Si8281/82/83). It uses a 24-pin wide-body SOIC package with reinforced insulation per EN/IEC/VDE/UL 62368-1 and UL 1577 (5.0 kVrms).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVrms per UL 1577 - enables reinforced insulation in 1000 VDC bus systems without additional creepage/clearance measures. |
| UVLO Threshold | 15 V on driver side (VDDB) - matches SiC FET gate drive requirements and prevents partial turn-on during brownout. |
| CMTI | 125 kV/µs - ensures signal integrity under fast switching transients in SiC-based inverters. |
| Desat Detection Speed | <1 µs response - enables immediate soft shutdown before destructive overcurrent damages SiC FETs. |
| DC-DC Control | External switch support + programmable frequency + soft-start - allows flexible isolated bias supply design for high-voltage gate drivers. |
| Operating Temp | –40 °C to +125 °C - qualified for automotive traction inverter and industrial UPS applications. |
| Package | 24-pin wide-body SOIC - provides 8.3 mm creepage/clearance, compatible with IPC-7351B land pattern WB-SOIC-24. |
Pinout & Package
SI8286EC-IS is housed in a 24-pin wide-body SOIC package (8.3 mm body width, 1.27 mm pitch), optimized for high-voltage isolation and thermal dissipation in motor drive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN− | Complementary digital input pair | Accepts CMOS-level PWM signals; supports active-high (IN+) or active-low (IN−) control without external logic inversion. |
| VH, VL | Independent gate drive outputs | Enable asymmetric rise/fall time tuning via separate external gate resistors for SiC FET VDS optimization. |
| DSAT | Desaturation sense input | Monitors switch VCE/VDS via external RDSAT/CBL; triggers fault within <1 µs if threshold (7 V nominal) exceeded. |
| /FLT, /RST | Open-drain fault output & active-low reset | /FLT asserts low on DESAT/UVLO; /RST must be pulsed low ≥350 ns to clear fault and resume operation. |
| RDY | Power-ready status indicator | Push-pull output goes high only when both VDDA and VDDB exit UVLO - confirms stable isolated supply before enabling PWM. |
| CLMP | Miller clamp control terminal | Internally clamps gate to VMID during high dV/dt events to prevent parasitic turn-on in half-bridge configurations. |
| SH/FC, SS | Shutdown/frequency control & soft-start | Enable system-level EMI reduction (dithering), controlled power-up sequencing, and safe disable during fault recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DC-DC controller with external switch | Supports >24 V input rails and scalable isolated bias power - eliminates need for discrete isolated DC-DC modules. |
| Dedicated DSAT pin with blanking timer | Configurable blanking via external CBL (e.g., 220–270 pF for SiC) prevents false triggering during switch turn-on transients. |
| Soft shutdown on fault | Discharges gate via weak pull-down through VH/RH - limits dV/dt stress on SiC FET during fault recovery. |
| Mirror clamp with VMID reference | Clamps gate to VMID (not VSSB) during Miller-induced voltage spikes - improves noise immunity in high-side half-bridge operation. |
| AEC-Q100 qualified (automotive-grade version available) | Validated for –40 °C to +125 °C operation with zero-defect manufacturing flow - suitable for EV traction inverter BOMs. |
Applications
| Industrial Motor Drives | Renewable Energy Inverters |
|---|---|
Use Scenario: Variable-frequency drives for HVAC compressors and industrial pumps using 650–1200 V SiC FETs. IC Role / Device Role / Timing Role: Isolated gate driver providing 15 V gate bias, DESAT protection, and soft shutdown for high-efficiency motor control. Use Value: Enables >100 kHz switching with <1 µs fault response, reducing system losses and eliminating external DESAT comparators. |
Use Scenario: String inverters and central inverters in solar farms with 1500 VDC input and transformerless topologies. IC Role / Device Role / Timing Role: High-CMTI isolated driver for SiC half-bridges, delivering precise timing control and reinforced insulation compliance. Use Value: Meets IEC 62109 and UL 1741 requirements via 5.0 kVrms isolation and EN 62368-1 certification. |
| Traction Inverters (EV/HEV) | On-Board Chargers (OBC) |
Use Scenario: Traction inverters in battery electric vehicles driving permanent magnet synchronous motors at 800 V bus. IC Role / Device Role / Timing Role: AEC-Q100 qualified isolated driver with integrated DC-DC for gate bias and fault reporting to vehicle MCU. Use Value: Reduces BOM count by integrating DESAT, Miller clamp, RDY, and programmable soft-start - simplifying ASIL-B compliant designs. |
Use Scenario: Bidirectional OBCs converting AC grid to HV battery (and vice versa) using SiC-based totem-pole PFC and LLC stages. IC Role / Device Role / Timing Role: Dual-channel isolated driver managing high-side/low-side SiC FETs with synchronized DESAT monitoring. Use Value: Supports 300+ kHz operation with 125 kV/µs CMTI, minimizing EMI and enabling compact magnetic design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8284EC-IS | Identical pinout, same 24-pin WB SOIC package, identical 15 V UVLO and 5.0 kVrms rating - confirmed as direct replacement per Skyworks ordering guide. | Same functional scope: SiC/IGBT gate drive with DESAT, soft shutdown, and external-switch DC-DC. | Select Si8284EC-IS when sourcing from standard distribution channels; SI8286EC-IS is a valid alternate marking per Skyworks documentation. |
| UCC5870QDWJRQ1 | 4.25 kVrms isolation (vs. 5.0 kVrms), 125 °C max junction temp (vs. 125 °C ambient), no programmable frequency - requires external soft-start circuitry. | Targeted at automotive ADAS domain controllers; lacks integrated blanking capacitor charging current source for DESAT. | Choose UCC5870QDWJRQ1 only if TI's automotive qualification path aligns with program requirements and 5.0 kVrms is not mandated. |
Compared with SI8286EC-IS, Si8284EC-IS offers identical electrical, thermal, and safety specifications with full drop-in compatibility, while UCC5870QDWJRQ1 trades isolation strength and integrated DESAT tuning for TI-specific automotive process validation - making SI8286EC-IS optimal for high-reliability 1500 VDC systems requiring maximum fault margin.
Availability
SI8286EC-IS is available at Aetrix Electronics and suitable for traction inverters, solar string inverters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability data.
Supply support for SI8286EC-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 family was designed specifically for high-reliability SiC and IGBT gate driving in EV traction, renewable energy, and industrial automation - integrating safety-critical functions (DESAT, soft shutdown, Miller clamp) into a single isolated package.
FAQ
What is the isolation voltage rating of the SI8286EC-IS?
The SI8286EC-IS has a certified 5.0 kVrms withstand voltage per UL 1577 for 1 minute, meeting reinforced insulation requirements per EN/IEC/VDE 62368-1. This rating is validated across the full operating temperature range (–40 °C to +125 °C) and applies to the 24-pin wide-body SOIC package geometry.
Does the SI8286EC-IS support SiC FET gate driving with 15 V UVLO?
Yes, the SI8286EC-IS features a 15 V undervoltage lockout (UVLO) threshold on the driver side (VDDB), explicitly optimized for Silicon Carbide FETs that require higher gate drive voltage to ensure full enhancement and minimize conduction losses. The UVLO hysteresis is internally set to prevent oscillation near the threshold.
How does the DSAT pin on the SI8286EC-IS detect desaturation faults?
The DSAT pin on the SI8286EC-IS monitors the switch collector/drain voltage via an external RDSAT resistor and blanking capacitor (CBL). An internal 7 V threshold comparator detects overvoltage conditions, with a fixed 220 mV hysteresis. Fault response occurs in under 1 µs, triggering soft shutdown and pulling /FLT low to alert the controller.
What package type and pin count does the SI8286EC-IS use?
The SI8286EC-IS uses a 24-pin wide-body SOIC package (8.3 mm body width, 1.27 mm pitch) with creepage and clearance exceeding 8.0 mm. This package is specified in Skyworks' datasheet Section 6.3 and supports IPC-7351B land pattern WB-SOIC-24 for automated assembly.
Is the SI8286EC-IS AEC-Q100 qualified?
The SI8286EC-IS itself is an industrial-grade part (suffix "-I"), but its automotive-grade counterpart SI8286EC-AS is fully AEC-Q100 qualified, PPAP-capable, and supported with IMDS/CAMDS documentation. The silicon die, isolation barrier, and functional specs are identical between -I and -AS versions - only the manufacturing flow and test screening differ.
SI8286EC-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:
- 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-IS FAQ
1.How can I place an order for SI8286EC-IS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8286EC-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 SI8286EC-IS reliable?
The price and inventory of SI8286EC-IS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8286EC-IS is usually 5 days.
3.What payment methods are accepted for SI8286EC-IS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8286EC-IS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8286EC-IS?
SI8286EC-IS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8286EC-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 SI8286EC-IS?
For technical support, including SI8286EC-IS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8286EC-IS requirements.
6.How does Aetrix verify that SI8286EC-IS is sourced from the original manufacturer or authorized distributors?
All SI8286EC-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 SI8286EC-IS meets industry standards.
7.What is the process for return or replacement of SI8286EC-IS?
All SI8286EC-IS units undergo pre-shipment inspection (PSI). If there is an issue with SI8286EC-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 SI8286EC-IS part is unused and in its original packaging.
Return procedure for SI8286EC-IS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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