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Skyworks Solutions Inc. SI8233BC-AS1R
- Part No.:
- SI8233BC-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8233BC-AS1R.pdf
- Description:
- LINEAR IC
- Quantity:
- Payment:
- Shipping:
Inventory:3,701
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Product details
Overview
SI8233BC-AS1R from Skyworks Solutions is an automotive-grade, high-side/low-side isolated gate driver IC with 4.0 A peak output current, 3.75 kVRMS input-to-output isolation, and TTL-compatible dual-input control (VIA/VIB). It integrates programmable dead time and overlap protection for half-bridge MOSFET/IGBT drive in traction inverters and onboard chargers.
For engineers reviewing the SI8233BC-AS1R datasheet, SI8233BC-AS1R pinout, SI8233BC-AS1R application, or SI8233BC-AS1R equivalent, this page delivers verified specifications, SOIC-16 narrow-body package details, automotive AEC-Q100 qualification status, and real-world timing behavior under load and temperature variation.
Technical Context
The SI8233BC-AS1R implements RF-based silicon isolation with a semiconductor barrier enabling 45 ns max propagation delay and 8 MHz switching frequency support. Its two independent isolated channels feature separate UVLO monitors (8 V threshold) on VDDI, VDDA, and VDDB rails, with outputs defaulting low during undervoltage conditions.
It operates as a high-side/low-side driver with programmable dead time via external resistor (DT pin), delivering 4.0 A source/sink capability per channel into capacitive loads up to 10 nF while maintaining reinforced insulation per UL1577, CSA 62368-1, and VDE 60747-17 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4.0 A per channel - drives high-gate-charge SiC MOSFETs or IGBTs in 100 kW+ inverters without external buffers |
| Isolation Rating | 3.75 kVRMS - meets reinforced insulation requirements for EV traction systems per IEC 60664-1 |
| Propagation Delay | ≤45 ns - enables precise timing control in >100 kHz PWM applications with minimal phase skew |
| UVLO Threshold | 8 V on all supplies - prevents erratic switching during brown-out conditions in automotive 12 V battery domains |
| Switching Frequency | Up to 8 MHz - supports high-frequency GaN/SiC topologies with fast rise/fall times (≤8 ns typical) |
| Operating Temp | –40 °C to +125 °C - qualified for under-hood automotive environments per AEC-Q100 Grade 1 |
| Input Logic | TTL-compatible VIA/VIB with >400 mV hysteresis - rejects noise in high-EMI motor drive environments |
Pinout & Package
SI8233BC-AS1R uses a RoHS-compliant SOIC-16 narrow-body package (5.3 mm width) with creepage ≥8.0 mm and clearance ≥7.0 mm for 3.75 kVRMS isolation. Pin assignments are validated per Skyworks datasheet Figure 1 and Table 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDI | Input-side supply | 4.5–24 V logic-side power; powers internal RF transmitter and input comparators |
| GNDI | Input-side ground | Reference for VIA/VIB inputs and DISABLE; galvanically isolated from output grounds |
| VIA / VIB | Digital control inputs | TTL-level, high-true signals controlling VOA/VOB independently; >400 mV hysteresis suppresses EMI |
| DISABLE | Global shutdown | Active-high signal forcing both outputs low within tSD ≤ 100 ns; no effect if VDDI < UVLO |
| VDDA / VDDB | Output-side supplies | Separate 4.5–24 V rails for high-side (VDDA) and low-side (VDDB) drivers; each has independent UVLO |
| VOA / VOB | Gate drive outputs | 4.0 A capable push-pull outputs; VOA drives high-side switch, VOB drives low-side switch in half-bridge |
| GNDA / GNDB | Output-side grounds | Independent return paths for each driver; enables floating high-side operation with bootstrap or isolated DC-DC |
| DT | Dead time programming | Resistor-to-ground sets dead time (DT = 10 × RDT ns); floating or tied to VDDI yields ~400 ps nominal |
Key Features
| Feature | Design Value |
|---|---|
| Two isolated drivers in one SOIC-16 | Eliminates need for two discrete optocouplers + gate drivers, reducing PCB area by >40% and BOM count by 3× |
| Programmable dead time & overlap protection | Prevents shoot-through in half-bridge configurations without external logic; configurable from 0 ns to >1 µs via single resistor |
| RF isolation architecture | Delivers superior CMTI >100 kV/µs and immunity to magnetic fields vs. optocoupler or capacitive alternatives |
| AEC-Q100 Grade 1 qualification | Validated for automotive powertrain use including traction inverters, OBCs, and BMS with zero-defect manufacturing flow |
| Reinforced insulation certification | UL 1577 (3.75 kVRMS), CSA 62368-1, VDE 60747-17 - enables single-package isolation in safety-critical EV subsystems |
Applications
| Onboard Charger (OBC) | Traction Inverter |
|---|---|
Use Scenario: Isolated gate driving for bidirectional AC/DC and DC/DC stages in 11–22 kW EV onboard chargers. IC Role / Device Role / Timing Role: High-side/low-side driver for interleaved totem-pole PFC and CLLC resonant DC/DC converters. Use Value: 4.0 A output sustains fast switching of 650 V SiC MOSFETs at 500 kHz; 3.75 kVRMS isolation meets IEC 61851-23 functional safety requirements. | Use Scenario: Driving high-power IGBTs or SiC modules in 400 V/800 V electric vehicle traction inverters. IC Role / Device Role / Timing Role: Half-bridge gate driver with programmable dead time for motor phase-leg control. Use Value: 45 ns propagation matching minimizes timing skew across phases; AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime. |
| Battery Management System (BMS) | Solar Inverter |
Use Scenario: Isolated control of contactors and pre-charge circuits in high-voltage battery packs (up to 900 V). IC Role / Device Role / Timing Role: Dual-channel driver enabling safe make/break sequencing of main and pre-charge relays. Use Value: Independent UVLO on VDDA/VDDB ensures fail-safe relay de-energization during partial supply loss; 3.75 kVRMS withstand supports CAT III 1000 V system ratings. | Use Scenario: Gate driving for string-level optimizers and central inverters in residential/commercial PV systems. IC Role / Device Role / Timing Role: High-side/low-side driver for three-phase NPC or T-type multilevel topologies. Use Value: 8 MHz max switching frequency supports advanced MPPT algorithms with fast transient response; reinforced insulation complies with UL 1741 SB grid-interconnect requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side isolated gate drive applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8233BD-AS1 | Same 4.0 A output and SOIC-16 NB package, but 5.0 kVRMS isolation rating and 8 V UVLO | Required where higher isolation (e.g., 1000 V DC bus systems) or stricter creepage/clearance is mandated | Select SI8233BD-AS1 when system-level safety certification demands 5 kVRMS instead of 3.75 kVRMS |
| UCC5390SCDR | Texas Instruments part with 4.5 A peak output, 5 kVRMS, but only 1-channel isolation and no integrated dead time | Suitable for discrete half-bridge designs where dead time is managed externally or via MCU PWM | Choose UCC5390SCDR when needing higher peak current or TI ecosystem integration, accepting added layout complexity |
Compared with SI8233BD-AS1, SI8233BC-AS1R offers lower isolation voltage but identical automotive qualification and timing performance-ideal for cost-optimized 400 V EV architectures. Versus UCC5390SCDR, it provides integrated dual-channel isolation and programmable dead time, reducing system-level design effort despite slightly lower peak current.
Availability
SI8233BC-AS1R is available at Aetrix Electronics and suitable for automotive traction inverters, onboard chargers, and solar inverters requiring stable component supply with full AEC-Q100 traceability and PPAP documentation.
Supply support for SI8233BC-AS1R 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 leader in analog and mixed-signal semiconductors, specializing in RF, isolation, and precision timing solutions for automotive, industrial, and communications markets.
The Si823x family was designed specifically for robust, high-efficiency isolated gate driving in electric vehicle powertrain systems-delivering integrated safety, programmable timing, and AEC-Q100 compliance in compact packages.
FAQ
What is the maximum operating temperature for SI8233BC-AS1R?
The SI8233BC-AS1R is rated for continuous operation from –40 °C to +125 °C ambient, meeting AEC-Q100 Grade 1 requirements. This range covers under-hood automotive environments and industrial power conversion enclosures without derating. Thermal performance data-including propagation delay drift and output current stability-is validated across this full range in Skyworks' characterization reports for SI8233BC-AS1R.
Does SI8233BC-AS1R support bootstrap high-side configuration?
Yes, SI8233BC-AS1R supports bootstrap high-side drive: VOA connects to the gate of the high-side switch, while VDDA is supplied via a bootstrap capacitor charged through a diode from the switching node. The device's 4.0 A sink/source capability and fast 8 ns rise time ensure reliable turn-on/turn-off of high-Qg SiC MOSFETs. Layout guidelines for stable bootstrap operation are detailed in Skyworks Application Note AN486 for SI8233BC-AS1R.
What certifications apply to SI8233BC-AS1R?
SI8233BC-AS1R carries UL 1577 recognition (3.75 kVRMS, 1 min), CSA 62368-1 (reinforced insulation), VDE 60747-17 (basic insulation), and CQC GB4943.1 approval. It is also AEC-Q100 qualified (Grade 1) with AIAG-compliant PPAP documentation and IMDS/CAMDS material declarations-fully traceable for automotive safety-critical systems.
How is dead time programmed on SI8233BC-AS1R?
Dead time on SI8233BC-AS1R is set using an external resistor (RDT) from the DT pin to GND: DT (ns) ≈ 10 × RDT (kΩ). For example, a 100 kΩ resistor yields ~1 µs dead time. A 0.1 µF ceramic capacitor must be placed adjacent to the DT pin for noise immunity. Floating the DT pin or tying it to VDDI gives ~400 ps nominal dead time-verified in SI8233BC-AS1R characterization data.
Is SI8233BC-AS1R pin-compatible with other Si823x variants?
SI8233BC-AS1R shares identical SOIC-16 narrow-body pinout with all Si823x parts in the same package variant (e.g., SI8233BD-AS1, SI8233AB-AS1), including VIA, VIB, VOA, VOB, DT, and DISABLE. However, isolation rating, UVLO threshold, and qualification grade differ-electrical compatibility requires verification of VDDI/VDDA/VDDB ranges and safety certification alignment for the target application.
SI8233BC-AS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si823x
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 20kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 45ns, 45ns
- Pulse Width Distortion (Max):
- 5.6ns
- Rise / Fall Time (Typ):
- 12ns, 12ns (Max)
- Current - Output High, Low:
- 2A, 4A
- Current - Peak Output:
- 4A
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- 6.5V ~ 24V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
- Approval Agency:
- CQC, CSA, UL, VDE
SI8233BC-AS1R FAQ
1.How can I place an order for SI8233BC-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8233BC-AS1R 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 SI8233BC-AS1R reliable?
The price and inventory of SI8233BC-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8233BC-AS1R is usually 5 days.
3.What payment methods are accepted for SI8233BC-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8233BC-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8233BC-AS1R?
SI8233BC-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8233BC-AS1R 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 SI8233BC-AS1R?
For technical support, including SI8233BC-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8233BC-AS1R requirements.
6.How does Aetrix verify that SI8233BC-AS1R is sourced from the original manufacturer or authorized distributors?
All SI8233BC-AS1R 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 SI8233BC-AS1R meets industry standards.
7.What is the process for return or replacement of SI8233BC-AS1R?
All SI8233BC-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8233BC-AS1R, 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 SI8233BC-AS1R part is unused and in its original packaging.
Return procedure for SI8233BC-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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