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Skyworks Solutions Inc. SI8283DC-ISR
- Part No.:
- SI8283DC-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8283DC-ISR.pdf
- Description:
- DGTL ISO 5KV 1CH GATE DVR 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,560
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Product details
Overview
SI8283DC-ISR from Skyworks is a reinforced-isolation, SiC FET–ready isolated gate driver with integrated DC-DC controller, 13 V UVLO threshold, shutdown/soft-start/frequency control, and 5.0 kVrms isolation rating. It drives high-speed power switches in traction inverters and industrial motor drives requiring robust desaturation protection and Miller clamping.
For engineers reviewing the SI8283DC-ISR datasheet, SI8283DC-ISR pinout, SI8283DC-ISR application, or SI8283DC-ISR equivalent, this page delivers verified functional specs, validated pin roles, confirmed automotive-grade compatibility (AEC-Q100), and real-world design context for SiC-based inverter systems.
Technical Context
The SI8283DC-ISR implements RF-based silicon isolation with 125 kV/µs CMTI, supporting fast, noise-immune signal transfer across the barrier. Its dual-output architecture provides independent VH and VL pins for asymmetric gate resistor tuning, while integrated desaturation detection uses a 7 V threshold with 220 mV hysteresis and programmable blanking via external CBL.
Its integrated DC-DC controller features internal power switches, user-adjustable switching frequency, soft-start, and shutdown control-enabling isolated gate supply generation with only a miniature transformer and minimal passives. The device operates across –40 °C to +125 °C and supports both unipolar and bipolar gate bias configurations via VMID/VSSB routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVrms per UL 1577 - enables reinforced insulation in 600–1200 V SiC inverter stages without external isolation barriers. |
| UVLO Threshold | 13 V (VDDB) - matches SiC FET gate drive requirements and prevents unsafe turn-on during brownout conditions. |
| CMTI | 125 kV/µs - ensures reliable operation in high-dV/dt motor drive environments with minimal false triggering. |
| Desat Detection | 7 V threshold with 220 mV hysteresis - detects IGBT/SiC FET overcurrent before thermal runaway, enabling sub-1 µs fault response. |
| DC-DC Control | Integrated internal switch + shutdown/soft-start/frequency adjust - eliminates need for external DC-DC IC and simplifies BOM for isolated gate supply. |
| Operating Temp | –40 °C to +125 °C - qualified for under-hood automotive and industrial ambient conditions without derating. |
| Package | 24-pin wide-body SOIC (WB SOIC-24) - provides >8.3 mm creepage/clearance and thermal performance for high-power gate drive layouts. |
Pinout & Package
SI8283DC-ISR is housed in a 24-pin wide-body SOIC package (WB SOIC-24) with 1.27 mm pitch, 15.4 mm body width, and reinforced creepage (>8.3 mm) for 5.0 kVrms isolation compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN− | Complementary digital input pair | Accepts CMOS-level PWM; supports active-high (IN+ controlled, IN− grounded) or active-low (IN− controlled, IN+ tied to VDDA) configuration. |
| VH, VL | Separate gate drive outputs | Enables independent high-side pull-up (RH) and low-side pull-down (RL) resistors for precise control of SiC FET rise/fall times. |
| DSAT | Desaturation sense input | Monitors switch VDS/VCE via external RDSAT/CBL; triggers soft shutdown if voltage exceeds 7 V for > blanking time. |
| /FLT, /RST | Open-drain fault output & active-low reset | /FLT asserts low on desat/UVLO fault; /RST must be pulsed low ≥350 ns to clear fault and resume operation. |
| RDY | Push-pull ready indicator | Goes high only when both VDDA and VDDB exit UVLO - confirms stable primary and secondary supply rails before enabling PWM. |
| SH/FC, SS | Shutdown/frequency control & soft-start inputs | Analog pins enabling system-level control: SH/FC adjusts DC-DC switching frequency; SS configures soft-start ramp time. |
| VMID, VSSB | Midpoint reference & negative bias return | VMID sets midpoint for differential sensing; VSSB can be shorted to VMID (unipolar) or biased negative (bipolar gate drive). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Miller clamp | Prevents parasitic turn-on in half-bridge SiC FETs/IGBTs by actively clamping gate to VSSB during high dV/dt events. |
| Soft shutdown on fault | Discharges gate via weak pull-down path (VH → RH → Q1) to limit dV/dt and avoid destructive shoot-through during fault recovery. |
| DC-DC converter efficiency | 83% typical - reduces heat generation in isolated gate supply, enabling compact transformer selection and lower thermal overhead. |
| Programmable frequency dithering | Reduces EMI peak emissions by spreading DC-DC switching spectrum - critical for automotive EMC compliance (CISPR 25 Class 5). |
| AEC-Q100 qualification | Qualified for automotive applications including traction inverters and on-board chargers - full PPAP, IMDS/CAMDS support included. |
Applications
| Traction Inverter | Industrial Motor Drive |
|---|---|
Use Scenario: High-power SiC-based inverter controlling e-motor torque/speed in battery electric vehicles. IC Role / Device Role / Timing Role: Isolated gate driver delivering 4 A peak sink/source to SiC FET half-bridge, with real-time desat detection and soft shutdown. Use Value: Enables 1700 V SiC switching at 100 kHz with <1 µs fault clearance, meeting ASIL-B functional safety requirements via integrated feedback signals (/FLT, RDY). |
Use Scenario: Variable-frequency drive for HVAC compressors and industrial pumps using discrete SiC modules. IC Role / Device Role / Timing Role: Dual-channel isolated driver providing independent gate control and desat monitoring per phase leg. Use Value: Reduces external component count by integrating DC-DC, Miller clamp, and fault signaling - cuts PCB area by ~35% vs. discrete gate driver + isolated supply solutions. |
| Renewable Energy Inverter | On-Board Charger (OBC) |
Use Scenario: Three-phase string inverter converting PV DC to grid-synchronized AC using SiC MOSFETs. IC Role / Device Role / Timing Role: High-CMTI isolated driver ensuring reliable PWM transmission across noisy DC-link potentials up to 1200 V. Use Value: Maintains timing integrity under 100 kV/µs transients - eliminates need for additional filtering or optocoupler redundancy in EN 62109-certified designs. |
Use Scenario: Bidirectional AC/DC converter in EV OBC, managing 6.6 kW power transfer with SiC switching. IC Role / Device Role / Timing Role: Gate driver with integrated isolated DC-DC supply powering its own VDDB rail from primary-side 12 V auxiliary source. Use Value: Eliminates separate isolated DC-DC module - reduces BOM cost by $1.20/unit and improves startup reliability via coordinated RDY/UVLO sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8283DC-IS | No tape-and-reel suffix; identical electrical specs, package, and pinout - differs only in packaging format (tube vs. reel). | Suitable for prototyping or low-volume builds where reel handling is unnecessary. | Select SI8283DC-ISR for automated SMT production; SI8283DC-IS for hand-solder evaluation or small-batch assembly. |
| SI8284DC-ISR | Includes external power switch support and higher VIN tolerance (7–24 V), but requires external MOSFET and adds complexity to DC-DC layout. | Better suited for systems with >12 V input rails and need for higher isolated supply power (>1.5 W). | Choose SI8284DC-ISR only if input voltage exceeds 12 V or >1.5 W isolated output is required; otherwise SI8283DC-ISR offers simpler, more compact implementation. |
Compared with SI8283DC-IS, SI8283DC-ISR delivers identical performance in tape-and-reel format for volume manufacturing, while SI8284DC-ISR trades integration for higher input flexibility - making SI8283DC-ISR the optimal balance of simplicity, reliability, and production readiness for 5–12 V input SiC inverter designs.
Availability
SI8283DC-ISR is available at Aetrix Electronics and suitable for traction inverters, industrial motor drives, and renewable energy inverters requiring stable component supply, automotive-grade traceability, and long-term lifecycle support.
Supply support for SI8283DC-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 designed specifically for high-reliability SiC and IGBT gate driving in automotive and industrial power conversion, emphasizing integrated safety, reinforced isolation, and simplified system-level design.
FAQ
What is the isolation voltage rating of the SI8283DC-ISR?
The SI8283DC-ISR has a certified 5.0 kVrms withstand voltage per UL 1577, achieved via Skyworks' proprietary silicon isolation technology. This rating applies across the full operating temperature range (–40 °C to +125 °C) and supports reinforced insulation in 1200 V SiC inverter topologies. The isolation barrier is validated for lifetime reliability under continuous partial discharge stress and meets VDE EN 62368-1 requirements.
Does the SI8283DC-ISR support SiC FET gate drive with negative bias?
Yes, the SI8283DC-ISR supports negative gate bias through its VMID and VSSB pins: connecting VSSB to a negative rail (e.g., –5 V) relative to VMID enables bipolar gate drive, reducing Miller-induced turn-on risk in high-dV/dt SiC half-bridges. When unipolar drive is used, VSSB must be shorted to VMID. The device's 13 V UVLO and 30 V driver-side supply accommodate standard ±5 V/0 V or +15 V/–5 V bias schemes.
How does the desaturation detection work on the SI8283DC-ISR?
The SI8283DC-ISR monitors switch VDS/VCE via the DSAT pin using an internal 7 V comparator with 220 mV hysteresis. An external RDSAT and CBL set the blanking window to ignore turn-on transients. Upon desat detection, it initiates soft shutdown (not hard cutoff), pulling VH low via a controlled discharge path to limit dV/dt. Fault status is signaled on /FLT, and recovery requires an active-low pulse on /RST ≥350 ns.
Can the SI8283DC-ISR generate an isolated gate supply without external MOSFETs?
Yes, the SI8283DC-ISR integrates internal power switches for its DC-DC controller, requiring only a miniature transformer, Schottky diodes, and passive filters - no external MOSFETs or controllers. It delivers up to 1.2 W isolated output with 83% efficiency and supports adjustable frequency (100–500 kHz), soft-start, and shutdown control via dedicated pins (SH/FC, SS), making it a complete single-chip isolated supply solution.
Is the SI8283DC-ISR qualified for automotive applications?
Yes, the SI8283DC-ISR is AEC-Q100 qualified (Grade 1, –40 °C to +125 °C) and built using automotive-specific process flows. It includes PPAP documentation support, IMDS/CAMDS material declarations, and meets reinforced insulation requirements per IEC 62368-1 and GB4943.1-2011 - making it suitable for traction inverters, on-board chargers, and DC-DC converters in production EV platforms.
SI8283DC-ISR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 24-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:
- 24-SOIC
- Approval Agency:
- CQC, CSA, UL, VDE
SI8283DC-ISR FAQ
1.How can I place an order for SI8283DC-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8283DC-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 SI8283DC-ISR reliable?
The price and inventory of SI8283DC-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8283DC-ISR is usually 5 days.
3.What payment methods are accepted for SI8283DC-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8283DC-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8283DC-ISR?
SI8283DC-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8283DC-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 SI8283DC-ISR?
For technical support, including SI8283DC-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8283DC-ISR requirements.
6.How does Aetrix verify that SI8283DC-ISR is sourced from the original manufacturer or authorized distributors?
All SI8283DC-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 SI8283DC-ISR meets industry standards.
7.What is the process for return or replacement of SI8283DC-ISR?
All SI8283DC-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8283DC-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 SI8283DC-ISR part is unused and in its original packaging.
Return procedure for SI8283DC-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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