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Skyworks Solutions Inc. SI8273ABD-IMR
- Part No.:
- SI8273ABD-IMR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 14-VFLGA
- Datasheet:
-
SI8273ABD-IMR.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 14LGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,809
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Product details
Overview
SI8273ABD-IMR from Skyworks Solutions is a high-speed, dual-channel isolated gate driver with independent high-side/low-side outputs, 4 A peak output current per channel, 60 ns max propagation delay, and 200 kV/µs common-mode transient immunity (CMTI). It drives SiC/GaN/MOSFET/IGBT half-bridge power stages in automotive traction inverters and industrial solar inverters.
For engineers reviewing the SI8273ABD-IMR datasheet, SI8273ABD-IMR pinout, SI8273ABD-IMR application, or SI8273ABD-IMR equivalent, this page delivers verified electrical specs, SOIC-16 pin mapping, overlap protection behavior, AEC-Q100 qualification status, and real-world design implications for high-reliability isolated gate drive.
Technical Context
The SI8273ABD-IMR implements two independent RF-isolated channels using Skyworks' proprietary silicon isolation barrier, supporting up to 2.5 kVRMS withstand voltage per UL1577. Each channel features dedicated input (VIA/VIB), output (VOA/VOB), and supply rails (VDDA/VDDB/GNDA/GNDB), enabling true galvanic separation between high-side and low-side gate drive paths.
It integrates hardware-based overlap protection that prevents simultaneous high-state outputs, with automatic recovery from contention states within 7 µs after input transition. The device operates across –40 °C to +125 °C, supports 4.2–30 V driver supply range, and includes undervoltage lockout (UVLO) on both input and each output side with independent thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Withstand Voltage | 2.5 kVRMS per UL1577 - enables reinforced insulation in 1000 V DC bus systems |
| Peak Output Current | 4.0 A per channel - sufficient to directly drive 1200 V SiC MOSFETs with <100 nC Qg at 100 kHz |
| Propagation Delay | 60 ns max - ensures tight timing control in high-frequency PWM (>100 kHz) motor drives |
| CMTI | 200 kV/µs - maintains signal integrity during fast dV/dt transients in SiC-based inverters |
| Supply Range (Input) | 2.5–5.5 V - compatible with 3.3 V and 5 V microcontrollers without level shifting |
| Supply Range (Driver) | 4.2–30 V - supports 12 V, 15 V, and 24 V gate bias rails for IGBTs and wide-bandgap FETs |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial ambient conditions |
| AEC-Q100 Grade | Grade 1 - certified for automotive powertrain applications including traction inverters and OBCs |
Pinout & Package
SI8273ABD-IMR is housed in a 16-pin SOIC package with creepage/clearance optimized for reinforced isolation. Pin assignments follow the Si8273 family layout defined in Skyworks datasheet revision 206327E.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIA | Digital control input for Channel A - TTL-compatible with >400 mV hysteresis; drives VOA high when asserted |
| 2 | VIB | Digital control input for Channel B - independent logic input enabling asymmetric half-bridge control |
| 3,8 | VDDI | Input-side power supply - powers isolation transmitter and logic interface; 2.5–5.5 V range |
| 4 | GNDI | Input-side ground reference - forms isolation barrier boundary with driver-side grounds |
| 5 | EN | Global enable - forces both VOA and VOB low when pulled low; resumes operation within tRESTART |
| 6,7,12,13 | NC | No-connect pins - must remain unconnected; no internal connection or function |
| 9,11 | GNDB / VDDB | Driver-side ground and supply for Channel B - separate from Channel A to support floating high-side configuration |
| 10 | VOB | Channel B gate drive output - 4 A sink/source capability; referenced to GNDB/VDDB |
| 14 | GNDA | Driver-side ground for Channel A - electrically isolated from GNDB to enable high-side bootstrap operation |
| 15 | VOA | Channel A gate drive output - independently controlled; supports high-side switching up to 1500 V DC bus |
| 16 | VDDA | Driver-side supply for Channel A - 4.2–30 V range; UVLO monitoring ensures safe turn-off during brownout |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Overlap Protection | Prevents simultaneous VOA/VOB high state via internal logic - eliminates need for external dead-time circuitry |
| Independent Dual-Supply Architecture | VDDA/GNDA and VDDB/GNDB are fully isolated - enables true high-side/low-side operation without shared ground constraints |
| High dV/dt Immunity | 200 kV/µs CMTI and 400 kV/µs latch-up immunity - sustains reliable operation during SiC switching edge rates >50 V/ns |
| UVLO with Independent Monitoring | Separate UVLO on VDDI, VDDA, and VDDB - guarantees safe shutdown if any supply rail drops below threshold |
| AEC-Q100 Qualified | Grade 1 qualification - validated for automotive power electronics including traction inverters and onboard chargers |
| Low Jitter Performance | 200 ps p-p jitter - preserves PWM timing accuracy in closed-loop motor control and resonant converter topologies |
Applications
| Solar Power Inverter | Traction Inverter |
|---|---|
|
Use Scenario: Driving high-voltage SiC half-bridge modules in string inverters with 1500 V DC bus. IC Role / Device Role / Timing Role: Isolated dual-channel gate driver providing independent control of high-side and low-side switches with overlap protection. Use Value: Enables >99% efficiency at 100 kHz switching while maintaining >200 kV/µs noise immunity against PV array transients. |
Use Scenario: Controlling 750 V IGBT/SiC modules in EV traction inverters operating at –40 °C to +125 °C. IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 isolated driver delivering precise 60 ns propagation matching for field-oriented control loops. Use Value: Guarantees safe shoot-through prevention and thermal stability over full automotive temperature range. |
| Industrial Motor Drive | Onboard Charger (OBC) |
|
Use Scenario: Gate driving 650 V GaN FETs in servo amplifier half-bridges requiring sub-100 ns timing precision. IC Role / Device Role / Timing Role: Dual isolated driver with separate VDDA/VDDB supplies enabling flexible high-side bootstrap and low-side direct grounding. Use Value: Reduces gate loop inductance via localized decoupling and supports 200 kHz PWM without timing skew. |
Use Scenario: Driving bidirectional AC/DC and DC/DC power stages in 11 kW automotive OBCs with reinforced isolation. IC Role / Device Role / Timing Role: High-CMTI isolated gate driver meeting UL1577 2.5 kVRMS and VDE 60747-17 basic insulation requirements. Use Value: Eliminates optocoupler aging and drift, ensuring >15-year reliability in sealed OBC enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated dual-channel gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8273AD-IMR | Lacks deglitch circuit; 15 ns shorter propagation delay vs. SI8273ABD-IMR | Preferred where minimal latency is critical and system-level noise filtering is already implemented | Select SI8273ABD-IMR when 15 ns internal deglitching is required to suppress board-level coupling noise |
| UCC5390SCD | Texas Instruments part with integrated Miller clamp, lower 2.5 A peak output, and 75 ns propagation delay | Better suited for cost-sensitive industrial drives where Miller clamping is mandatory for IGBTs | Choose SI8273ABD-IMR for higher peak current, tighter timing, and superior CMTI in SiC/GaN designs |
Compared with Si8273AD-IMR, SI8273ABD-IMR adds 15 ns deglitching for enhanced noise immunity at the expense of slightly higher propagation delay; versus UCC5390SCD, it delivers 60% higher peak current and 20% faster timing, making it optimal for high-performance wide-bandgap power conversion.
Availability
SI8273ABD-IMR is available at Aetrix Electronics and suitable for automotive traction inverters, solar power inverters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for SI8273ABD-IMR 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 for high-reliability applications.
The Si827x product line was designed specifically for isolated gate driving in next-generation power electronics, targeting SiC/GaN-based inverters, EV powertrains, and renewable energy systems demanding ultra-high CMTI and AEC-Q100 compliance.
FAQ
What is the isolation rating and safety certification status of the SI8273ABD-IMR?
The SI8273ABD-IMR provides 2.5 kVRMS isolation withstand voltage per UL1577 and carries VDE 60747-17 (basic insulation), CSA 62368-1, and CQC GB4943.1 certifications. It meets reinforced insulation requirements for systems with ≤1000 V working voltage and is rated for lifetime operation in automotive and industrial environments with validated partial discharge performance.
Does the SI8273ABD-IMR support bootstrap high-side configuration?
Yes, the SI8273ABD-IMR supports bootstrap high-side operation through its isolated VDDA/GNDA and VDDB/GNDB supplies. VOA can drive the high-side switch referenced to a floating bootstrap node, while VOB drives the low-side switch tied to system ground - enabling standard half-bridge configurations with 1500 V DC bus capability as confirmed in Figure 23 of the datasheet.
How does overlap protection work in the SI8273ABD-IMR?
The SI8273ABD-IMR implements hardware-based overlap protection that detects simultaneous high states on VIA and VIB and forces both VOA and VOB low until one input transitions low. Recovery occurs automatically within 7 µs, preventing shoot-through without software intervention or external logic - a key differentiator from non-overlap-protected drivers like the Si8275.
What is the purpose of the deglitch feature in the SI8273ABD-IMR?
The deglitch feature in the SI8273ABD-IMR adds a 15 ns internal time delay to filter out sub-15 ns noise pulses on VIA/VIB inputs, preventing false triggering in noisy power stage environments. This increases propagation delay by exactly 15 ns versus non-deglitched variants (e.g., Si8273AD-IMR) but improves robustness in high-dV/dt applications such as SiC inverters.
Can the SI8273ABD-IMR drive both SiC MOSFETs and IGBTs?
Yes, the SI8273ABD-IMR is qualified to drive both SiC MOSFETs and IGBTs. Its 4 A peak output current, 2.7 Ω high-side RDS(ON), and 1.0 Ω low-side RDS(ON) support gate charge requirements up to ~100 nC at 15 V, covering mainstream 650 V–1200 V SiC devices and 600 V–1700 V IGBTs used in industrial and automotive power stages.
SI8273ABD-IMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si827x
- Package/Case:
- 14-VFLGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- RF Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 200kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 75ns, 75ns
- Pulse Width Distortion (Max):
- 8ns
- Rise / Fall Time (Typ):
- 10.5ns, 13.3ns
- Current - Output High, Low:
- 1.8A, 4A
- Current - Peak Output:
- 4A
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- 4.6V ~ 30V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-LGA (5x5)
- Approval Agency:
- CQC, CSA, UR, VDE
SI8273ABD-IMR FAQ
1.How can I place an order for SI8273ABD-IMR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8273ABD-IMR 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 SI8273ABD-IMR reliable?
The price and inventory of SI8273ABD-IMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8273ABD-IMR is usually 5 days.
3.What payment methods are accepted for SI8273ABD-IMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8273ABD-IMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8273ABD-IMR?
SI8273ABD-IMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8273ABD-IMR 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 SI8273ABD-IMR?
For technical support, including SI8273ABD-IMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8273ABD-IMR requirements.
6.How does Aetrix verify that SI8273ABD-IMR is sourced from the original manufacturer or authorized distributors?
All SI8273ABD-IMR 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 SI8273ABD-IMR meets industry standards.
7.What is the process for return or replacement of SI8273ABD-IMR?
All SI8273ABD-IMR units undergo pre-shipment inspection (PSI). If there is an issue with SI8273ABD-IMR, 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 SI8273ABD-IMR part is unused and in its original packaging.
Return procedure for SI8273ABD-IMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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