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Skyworks Solutions Inc. SI8286ED-ISR
- Part No.:
- SI8286ED-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8286ED-ISR.pdf
- Description:
- DGTL ISO 5KV 1CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,312
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Product details
Overview
SI8286ED-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 source/sink drive current, supports 15 V UVLO for SiC FETs, features DESAT detection with <1 µs fault response, and provides reinforced isolation rated at 5.0 kVrms per UL1577 - enabling robust operation in 800 V battery-based EV power stages.
For engineers reviewing the SI8286ED-ISR datasheet, SI8286ED-ISR pinout, SI8286ED-ISR application, or SI8286ED-ISR equivalent, this page details its verified gate drive performance, integrated DC-DC control architecture, automotive-grade safety features (AEC-Q100, ISO/IEC 62368-1), and validated use in SiC half-bridge configurations requiring fast desaturation protection and soft shutdown.
Technical Context
The SI8286ED-ISR implements a proprietary RF-based silicon isolation barrier with 125 kV/µs CMTI, supporting bidirectional signal integrity across the barrier without startup initialization. Its input accepts complementary digital logic (IN+/IN−) with configurable active-high or active-low control, while the output side provides independent VH and VL pins for asymmetric gate resistor tuning.
It integrates a feedback-controlled DC-DC controller with external switch support, programmable frequency, soft-start, and shutdown capability - all configured via SH/FC, SS, and RSTb pins. The device includes dedicated DSAT sensing with 7 V threshold and 220 mV hysteresis, Miller clamp (CLMP), RDY status indication, and open-drain FLTb fault reporting with active-low reset recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVrms withstand voltage (UL1577), enabling direct use in 800 V DC bus systems without additional isolation barriers. |
| Peak Output Current | ±4 A source/sink, sufficient to drive high-Qg SiC FETs (e.g., 100 nC) at >100 kHz switching frequencies with controlled dV/dt. |
| UVLO Threshold | 15 V (VDDB–VMID), specifically optimized for SiC FET gate bias requirements and compatible with 15 V gate drivers. |
| DESAT Response Time | <1 µs, ensuring sub-microsecond fault detection and initiation of soft shutdown before destructive IGBT/SiC FET overcurrent occurs. |
| CMTI | 125 kV/µs, rejecting high dv/dt noise in high-power inverter legs and preventing false triggering during fast switching transitions. |
| DC-DC Efficiency | 83%, minimizing heat generation on the isolated side and reducing need for heatsinking in compact motor control modules. |
| Operating Temperature | –40 °C to +125 °C ambient, qualified per AEC-Q100 Grade 1, supporting under-hood automotive and industrial inverter environments. |
Pinout & Package
SI8286ED-ISR is housed in a 24-pin wide-body SOIC package (WB SOIC-24) with creepage/clearance compliant to reinforced insulation standards. Pin assignments are validated per Skyworks datasheet Rev. 206406A, Section 5 "Pin Descriptions".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Primary-side supply input | Accepts 4.5–24 V; powers internal oscillator, input logic, and isolation transmitter. |
| IN+ | Complementary input (non-inverting) | Active-high control input; used with IN− held low for standard PWM interface. |
| IN− | Complementary input (inverting) | Active-low control input; used with IN+ held high for inverted logic compatibility. |
| RSTb | Active-low reset | Clears DESAT fault latching; requires ≥350 ns low pulse to restore operational state after fault. |
| RDY | Power-ready indicator | Push-pull output goes high only when both VDDA and VDDB exceed UVLO thresholds. |
| /FLT | Fault indicator (open-drain) | Pulled low on DESAT or UVLO fault; requires external 1 kΩ pull-up for clean MCU interrupt signaling. |
| VH / VL | Gate drive high/low outputs | Independent pins enable separate turn-on/turn-off resistors for precise dV/dt control in SiC half-bridges. |
| DSAT | Desaturation sense input | Monitors VDS/VCE via external RDSAT/DDSAT; triggers fault if voltage exceeds 7 V for > blanking time. |
| 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 | Shutdown/frequency control | Configures DC-DC shutdown mode and sets switching frequency (Si8283/Si8284 family variant). |
| SS | Soft-start control | Enables controlled ramp-up of DC-DC output to limit inrush current and avoid transformer saturation. |
| VMID | Reference midpoint | Serves as return path for DSAT sensing and negative gate bias; shorted to VSSB if no negative bias is used. |
| VDDB / VSSB | Isolated secondary supply | Outputs regulated gate drive voltage (e.g., 15 V); VSSB is isolated ground reference for driver-side circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DESAT protection | 7 V threshold with 220 mV hysteresis and programmable blanking via external CBL capacitor - eliminates need for discrete fault-detection ICs. |
| Soft shutdown on fault | Controlled gate discharge via weak pull-down through VH/RH, limiting dV/dt during fault recovery and preventing secondary stress on SiC FETs. |
| Reinforced isolation | 5.0 kVrms UL1577 rating with 125 kV/µs CMTI - meets IEC 62368-1 and GB4943.1-2011 for functional safety in automotive inverters. |
| Programmable DC-DC | External-switch topology with adjustable frequency, soft-start, and shutdown - enables flexible isolated bias generation up to 15 V @ 100 mA. |
| Martin clamp | Dedicated CLMP pin drives external transistor to clamp gate during high dV/dt events - prevents Miller-induced shoot-through in half-bridge SiC designs. |
Applications
| EV Traction Inverter | Industrial Motor Drive |
|---|---|
Use Scenario: Driving dual 1200 V SiC FET half-bridges in a 400–800 V battery-powered electric vehicle traction inverter. IC Role / Device Role / Timing Role: Isolated gate driver providing 15 V gate bias, DESAT monitoring, and soft shutdown for upper/lower switches in each phase leg. Use Value: Enables <1 µs fault response and 125 kV/µs noise immunity in high-dv/dt inverter legs, meeting ASIL-B functional safety requirements without external fault logic. |
Use Scenario: Controlling IGBTs in variable-frequency drives for HVAC compressors and industrial pumps operating at 690 V AC line voltage. IC Role / Device Role / Timing Role: Gate driver with integrated DC-DC supplying isolated 15 V gate bias and detecting collector-emitter desaturation during overload conditions. Use Value: Reduces BOM count by eliminating discrete isolated DC-DC converters and DESAT comparators while maintaining 5.0 kVrms system-level isolation. |
| On-Board Charger (OBC) | Renewable Energy Inverter |
Use Scenario: Bidirectional SiC FET control in 11 kW AC/DC + DC/AC OBC modules for BEVs, requiring galvanic isolation between primary and secondary sides. IC Role / Device Role / Timing Role: Isolated gate driver managing synchronous rectification and PFC switching with coordinated DESAT and RDY signaling. Use Value: Integrated RDY pin confirms stable secondary-side power before enabling PWM, preventing premature gate drive activation during DC-DC startup transients. |
Use Scenario: Driving SiC MOSFETs in string inverters for solar PV farms operating at 1500 V DC input with stringent grid-code compliance. IC Role / Device Role / Timing Role: High-CMTI isolated driver delivering ±4 A peak current and real-time fault reporting via FLTb to central controller. Use Value: 83% DC-DC efficiency minimizes thermal load in sealed outdoor enclosures, while AEC-Q100 qualification ensures long-term reliability in harsh environmental conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8284ED-IS | Same 24-pin WB SOIC package, identical 15 V UVLO and 5.0 kVrms isolation, but lacks automotive PPAP documentation and IMDS/CAMDS support. | Valid for industrial inverters and renewable energy systems where AEC-Q100 is not mandated. | Select SI8284ED-IS for cost-sensitive industrial designs without automotive certification requirements. |
| UCC5870QDWJRQ1 | Texas Instruments part with 5.7 kVrms isolation, 10 A peak drive, but no integrated DC-DC - requires external isolated bias supply. | Suitable for high-current SiC applications needing >4 A drive, but increases system complexity and component count. | Choose UCC5870QDWJRQ1 only when higher peak current (>4 A) is required and external isolated supply is already available. |
Compared with SI8284ED-IS, SI8286ED-ISR adds full automotive qualification (PPAP, IMDS, CAMDS) and AEC-Q100 Grade 1 compliance; versus UCC5870QDWJRQ1, it trades peak current for integrated DC-DC and simplified layout - making it optimal for space-constrained, certified automotive SiC inverter modules.
Availability
SI8286ED-ISR is available at Aetrix Electronics and suitable for EV traction inverters, on-board chargers, and industrial motor drives requiring stable component supply, automotive-grade traceability, and long-lifecycle availability.
Supply support for SI8286ED-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, timing, and isolation technologies.
The Si828x product line was developed to address the gate drive challenges of wide-bandgap power devices - specifically targeting SiC FET and IGBT applications in automotive traction, industrial motor control, and renewable energy systems.
FAQ
What is the isolation voltage rating of the SI8286ED-ISR?
The SI8286ED-ISR has a reinforced isolation rating of 5.0 kVrms per UL1577 for 1 minute, validated across its full temperature range (–40 °C to +125 °C). This rating applies directly to the SI8286ED-ISR device and enables safe operation in 800 V battery systems without additional isolation components. The isolation barrier uses Skyworks' proprietary silicon-based RF technology, not optocoupler or capacitive coupling.
Does the SI8286ED-ISR include an integrated DC-DC converter?
Yes, the SI8286ED-ISR integrates a feedback-controlled DC-DC controller that supports external power switches, allowing flexible isolated bias generation. It delivers up to 15 V at 100 mA on the secondary side with 83% efficiency. Unlike Si8281/Si8282 variants, SI8286ED-ISR (as part of the Si8283/Si8284 family) supports programmable frequency, soft-start, and shutdown control via SH/FC and SS pins.
How does the DESAT protection work on the SI8286ED-ISR?
The SI8286ED-ISR monitors VDS (SiC) or VCE (IGBT) via the DSAT pin using an external RDSAT resistor and DDSAT diode. When the sensed voltage exceeds 7 V (with 220 mV hysteresis) for longer than the blanking time set by CBL, it triggers a fault and initiates soft shutdown. The <1 µs response time is measured from DESAT event onset to FLTb assertion, and the fault remains latched until RSTb is pulsed low.
Is the SI8286ED-ISR qualified for automotive applications?
Yes, the SI8286ED-ISR is AEC-Q100 Grade 1 qualified and built using automotive-specific manufacturing flows. It includes PPAP documentation support, IMDS and CAMDS listing, and meets IEC 62368-1 and GB4943.1-2011 reinforced insulation requirements - making it suitable for traction inverters, on-board chargers, and DC-DC converters in hybrid and electric vehicles.
What package type does the SI8286ED-ISR use?
The SI8286ED-ISR uses a 24-pin wide-body SOIC (WB SOIC-24) package with 1.27 mm pitch, specified in Skyworks datasheet section 6.3. This package provides enhanced creepage and clearance for reinforced insulation, supports RoHS-compliant reflow (260 °C peak), and is pin-compatible with other Si8283/Si8284 variants including SI8284ED-IS and SI8284ED-AS.
SI8286ED-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:
- 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:
- 16V ~ 30V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
- Approval Agency:
- CQC, CSA, UR, VDE
SI8286ED-ISR FAQ
1.How can I place an order for SI8286ED-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8286ED-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 SI8286ED-ISR reliable?
The price and inventory of SI8286ED-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8286ED-ISR is usually 5 days.
3.What payment methods are accepted for SI8286ED-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8286ED-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8286ED-ISR?
SI8286ED-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8286ED-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 SI8286ED-ISR?
For technical support, including SI8286ED-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8286ED-ISR requirements.
6.How does Aetrix verify that SI8286ED-ISR is sourced from the original manufacturer or authorized distributors?
All SI8286ED-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 SI8286ED-ISR meets industry standards.
7.What is the process for return or replacement of SI8286ED-ISR?
All SI8286ED-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8286ED-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 SI8286ED-ISR part is unused and in its original packaging.
Return procedure for SI8286ED-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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