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Skyworks Solutions Inc. SI8286DD-ASR
- Part No.:
- SI8286DD-ASR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8286DD-ASR.pdf
- Description:
- DGTL ISO 5KV 1CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,619
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Product details
Overview
SI8286DD-ASR from Skyworks is an automotive-grade, isolated high-current gate driver with integrated DC-DC converter, designed specifically for SiC FETs and IGBTs in traction inverters and on-board chargers. It delivers 4.0 A peak source/sink drive current, supports 5.0 kVrms isolation (UL 1577), features desaturation detection with <1 µs fault response, and operates across –40 to +125 °C.
For engineers reviewing the SI8286DD-ASR datasheet, SI8286DD-ASR pinout, SI8286DD-ASR application, or SI8286DD-ASR equivalent, this device is selected for high-reliability SiC-based power conversion where integrated safety feedback (FLTb, RDY, RSTb), soft shutdown, Miller clamp, and reinforced insulation per EN/IEC/VDE 62368-1 are required.
Technical Context
The SI8286DD-ASR implements a proprietary RF-based silicon isolation barrier enabling 125 kV/µs CMTI and stable performance over temperature and lifetime. Its dual-channel architecture separates input logic (IN+/IN–) from isolated output drivers (VH/VL), with dedicated DSAT sensing and active Miller clamping to prevent parasitic turn-on in half-bridge configurations.
This variant integrates an external-switch DC-DC controller supporting high-input-voltage rails (e.g., 12 V automotive), with programmable switching frequency, soft-start, and shutdown control - distinguishing it from internal-switch variants like SI8281/83. UVLO thresholds are fixed at 13 V (VDDB) with hysteresis, optimized for SiC FET gate bias stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVrms withstand voltage (UL 1577, 1 min); enables reinforced insulation in EV traction systems. |
| Peak Output Current | ±4.0 A source/sink; drives high-Qg SiC FETs with fast, controlled dV/dt during switching transitions. |
| Desat Detection Speed | <1 µs response time; ensures immediate shutdown before destructive IGBT/SiC FET overcurrent damage. |
| Common-Mode Transient Immunity | 125 kV/µs; maintains signal integrity in noisy high-dV/dt motor drive environments. |
| UVLO Threshold | 13 V (VDDB to VMID), with hysteresis; prevents erratic operation during SiC gate bias droop. |
| Operating Temperature | –40 °C to +125 °C ambient; qualified per AEC-Q100 Grade 1 for under-hood automotive use. |
| DC-DC Configuration | External power switch support; accepts up to 24 V input for flexible isolated supply generation in OBCs. |
Pinout & Package
SI8286DD-ASR is housed in a 24-pin wide-body SOIC package (WB SOIC-24) with creepage/clearance compliant to reinforced insulation standards. Pin layout follows Skyworks' standard Si828x family assignment, with functional separation between primary-side inputs and secondary-side gate drive outputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN– | Complementary digital input pair | Accepts CMOS-level PWM; enables active-high or active-low control without external inversion logic. |
| VH, VL | High-side and low-side gate drive outputs | Separate pins allow independent gate resistor selection for precise SiC FET rise/fall time tuning. |
| DSAT | Desaturation sense input | Monitors VDS/VCE via external RDSAT/DDSAT; triggers soft shutdown if threshold (7 V nominal) exceeded. |
| CLMP | Miller clamp control terminal | Actively pulls gate to VMID during off-state to suppress parasitic turn-on in half-bridge topologies. |
| /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 dual-rail readiness. |
| VDDB, VSSB, VMID | Secondary-side power and reference nodes | Supports configurable gate bias (e.g., +15 V / –5 V) via transformer winding; VSSB tied to VMID if no negative bias used. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated desaturation protection | Detects VDS/VCE >7 V within blanking window; initiates controlled soft shutdown (<1 µs) to avoid shoot-through. |
| Reinforced isolation architecture | Silicon-based RF isolation barrier certified to UL 1577 (5 kVrms), VDE/EN/IEC 62368-1, and CQC GB4943.1-2011. |
| Programmable DC-DC controller | External-switch topology supports 7–24 V input; adjustable frequency minimizes EMI in compact OBC layouts. |
| Mandatory soft-start and shutdown | Prevents inrush current and uncontrolled startup; required for AEC-Q100-compliant automotive power sequencing. |
| Miller clamp with active discharge | Clamps gate to VMID during off-time; eliminates need for external transistor in SiC half-bridge designs. |
Applications
| Electric Vehicle Traction Inverter | Automotive 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 signaling and soft shutdown to protect against short-circuit events. Use Value: Enables 1700 V SiC FET operation with 125 kV/µs CMTI immunity and 5.0 kVrms isolation, meeting ISO 26262 ASIL-C functional safety requirements. |
Use Scenario: Bidirectional AC/DC and DC/DC conversion in 11 kW OBCs with gallium nitride or SiC power stages. IC Role / Device Role / Timing Role: Dual-channel isolated driver powering high-frequency SiC switches; integrated DC-DC supplies gate bias from 12 V auxiliary rail. Use Value: Eliminates external isolated bias supplies; programmable frequency reduces conducted EMI in constrained automotive EMI envelopes. |
| Industrial Motor Drive Inverter | Renewable Energy Solar Inverter |
Use Scenario: Variable-speed drive for HVAC compressors or industrial pumps using 1200 V SiC modules. IC Role / Device Role / Timing Role: Gate driver with Miller clamp and DESAT monitoring for robust operation under high dv/dt and thermal stress. Use Value: Reduces external BOM count by integrating fault feedback, ready signaling, and isolated power control in single WB SOIC-24 package. |
Use Scenario: String-level DC/AC conversion in utility-scale solar farms with high-efficiency SiC-based three-level NPC topologies. IC Role / Device Role / Timing Role: High-CMTI isolated driver enabling >100 kHz switching with minimal gate loop noise coupling. Use Value: Supports extended lifetime (>25 years) through temperature-stable silicon isolation and AEC-Q100-grade reliability screening. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8284DD-ASR | Same pinout, identical electrical specs, and identical automotive qualification; differs only in top marking and traceability documentation. | No functional difference; both meet AEC-Q100 Grade 1 and support same 13 V UVLO, external-switch DC-DC, and 5 kVrms isolation. | Select SI8284DD-ASR when full PPAP documentation, IMDS/CAMDS reporting, or specific lot traceability per AIAG requirements is mandated. |
| UCC5870QDWJRQ1 | Texas Instruments part with 5.7 kVRMS isolation, 10 A peak drive, but no integrated DC-DC; requires external isolated bias supply. | Better suited for ultra-high-current IGBT modules; lacks integrated desat blanking capacitor charging and soft shutdown timing control. | Choose UCC5870QDWJRQ1 only when >5 A peak drive is required and board space allows discrete isolated supply design. |
Compared with SI8286DD-ASR, SI8284DD-ASR offers identical functionality and automotive compliance with enhanced documentation rigor, while UCC5870QDWJRQ1 trades integration for higher drive strength and requires additional power-supply components.
Availability
SI8286DD-ASR is available at Aetrix Electronics and suitable for electric vehicle traction inverters, automotive on-board chargers, and industrial motor drives requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for SI8286DD-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, isolation, and power management technologies.
The Si828x product line was developed to address the gate driving challenges of wide-bandgap semiconductors in automotive and industrial power conversion, emphasizing integrated safety, reinforced isolation, and system-level simplification.
FAQ
What is the isolation voltage rating of the SI8286DD-ASR and which safety standards does it meet?
The SI8286DD-ASR provides 5.0 kVrms isolation per UL 1577 (1 minute). It is certified to VDE/EN/IEC 62368-1 and CQC GB4943.1-2011 for reinforced insulation. These approvals confirm its suitability for high-voltage automotive and industrial applications where galvanic separation and transient immunity are critical - a key specification verified in the official Skyworks Si828x datasheet for SI8286DD-ASR.
Does the SI8286DD-ASR include an integrated DC-DC converter, and what configuration does it use?
Yes, the SI8286DD-ASR integrates a DC-DC controller configured for external power switch operation - supporting input voltages up to 24 V and enabling flexible isolated gate bias generation. Unlike internal-switch variants (e.g., SI8281), this configuration delivers higher efficiency and input voltage range, as confirmed in Table 1.1 of the Si828x datasheet for SI8286DD-ASR.
What is the UVLO threshold for the SI8286DD-ASR, and why is it specified as "13 V"?
The SI8286DD-ASR has a nominal undervoltage lockout (UVLO) threshold of 13 V on the VDDB-to-VMID rail, optimized for reliable turn-on of 15 V-gated SiC FETs. This value ensures sufficient gate overdrive while avoiding false triggering during transient dips - a parameter explicitly listed in the Si828x Ordering Guide for SI8286DD-ASR and validated across temperature per AEC-Q100 testing.
How does the desaturation detection function work in the SI8286DD-ASR, and what is its response time?
The SI8286DD-ASR monitors VDS/VCE via the DSAT pin using a 7 V threshold and 220 mV hysteresis. Upon detection, it initiates soft shutdown within <1 µs - confirmed in the "KEY FEATURES" section of the datasheet. The blanking time is externally set via CBL, and the internal current source charges this capacitor to mask turn-on transients - a behavior fully documented for SI8286DD-ASR.
Is the SI8286DD-ASR pin-compatible with other Si828x family members, and which packages does it use?
Yes, the SI8286DD-ASR uses the 24-pin wide-body SOIC (WB SOIC-24) package and shares identical pinout and signal mapping with all Si8283/Si8284 variants. This mechanical and functional compatibility is defined in Sections 5 (Pin Descriptions) and 6 (Packaging) of the Si828x datasheet and applies specifically to SI8286DD-ASR as an automotive-grade derivative.
SI8286DD-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:
- 14V ~ 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
SI8286DD-ASR FAQ
1.How can I place an order for SI8286DD-ASR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8286DD-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 SI8286DD-ASR reliable?
The price and inventory of SI8286DD-ASR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8286DD-ASR is usually 5 days.
3.What payment methods are accepted for SI8286DD-ASR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8286DD-ASR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8286DD-ASR?
SI8286DD-ASR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8286DD-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 SI8286DD-ASR?
For technical support, including SI8286DD-ASR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8286DD-ASR requirements.
6.How does Aetrix verify that SI8286DD-ASR is sourced from the original manufacturer or authorized distributors?
All SI8286DD-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 SI8286DD-ASR meets industry standards.
7.What is the process for return or replacement of SI8286DD-ASR?
All SI8286DD-ASR units undergo pre-shipment inspection (PSI). If there is an issue with SI8286DD-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 SI8286DD-ASR part is unused and in its original packaging.
Return procedure for SI8286DD-ASR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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