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Skyworks Solutions Inc. SI8233BB-D-IS
- Part No.:
- SI8233BB-D-IS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8233BB-D-IS.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:15,323
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Product details
Overview
SI8233BB-D-IS from Skyworks Solutions is a high-side/low-side isolated gate driver IC with 4.0 A peak output current, 2.5 kVRMS input-to-output isolation, and TTL-compatible dual-input control (VIA/VIB). It integrates two independent isolated drivers in a single SOIC-16 wide-body package and supports up to 8 MHz switching frequency for half-bridge MOSFET/IGBT drive in industrial inverters and motor control systems.
For engineers reviewing the SI8233BB-D-IS datasheet, SI8233BB-D-IS pinout, SI8233BB-D-IS application, or SI8233BB-D-IS equivalent, this page delivers verified specifications, functional context, real-world use cases, and validated alternative options - all aligned to the December 2024 final datasheet revision 206326B.
Technical Context
The SI8233BB-D-IS implements RF-based on/off keying across a proprietary silicon isolation barrier, delivering 45 ns typical propagation delay and robust electromagnetic immunity without startup initialization. Its dual-channel architecture includes independent UVLO monitoring per side (8 V threshold), programmable dead time via external resistor, and overlap protection logic to prevent shoot-through in half-bridge topologies.
It operates with 4.0 A source/sink capability at VDDA/VDDB = 12–24 V, supports grounded or floating output configurations, and maintains stable timing across –40°C to +125°C ambient. The device uses separate input (VDDI) and output (VDDA/VDDB) supplies, enabling level-shifting between logic and power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4.0 A - drives high-capacitance MOSFET/IGBT gates directly without external buffers in 1500 V-class half-bridges. |
| Isolation Rating | 2.5 kVRMS - UL1577-certified reinforced insulation for industrial safety compliance in AC/DC and DC/DC converters. |
| Propagation Delay | 45 ns - enables precise timing control at >1 MHz switching frequencies with minimal skew between channels. |
| UVLO Threshold | 8 V - prevents erratic gate drive during brown-out conditions; independent monitoring on VDDI, VDDA, and VDDB rails. |
| Switching Frequency | Up to 8 MHz - supports high-frequency resonant topologies including LLC and GaN-based designs. |
| Input Compatibility | TTL-level with >400 mV hysteresis - ensures noise-immune operation in electrically noisy motor drive and inverter environments. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive subsystems and industrial power modules. |
Pinout & Package
SI8233BB-D-IS is housed in a RoHS-compliant SOIC-16 wide-body package (10.3 mm × 10.3 mm, 2.65 mm height) with creepage ≥8.3 mm and clearance ≥8.3 mm per IEC 60664-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Input-side ground and supply | GNDI and VDDI pins support isolated logic-side power domain; VDDI accepts 4.5–5.5 V for TTL interface. |
| 9, 10 | Control inputs | VIA and VIB accept TTL-compatible signals; high-true logic controls respective high-side (VOA) and low-side (VOB) outputs. |
| 11 | Disable input | Active-high DISABLE forces both outputs low unconditionally - critical for fault shutdown in overcurrent or overtemperature events. |
| 12, 13, 14, 15, 16 | Output-side supply and ground | VDDA, VDDB, GNDA, GNDB, and DT pins enable independent power domains and programmable dead-time configuration. |
| 12, 13 | Output supplies | VDDA powers high-side driver; VDDB powers low-side driver - each supports 12–24 V for direct gate drive of 650 V+ MOSFETs. |
| 14, 15 | Output grounds | GNDA and GNDB are isolated from GNDI - allows floating high-side gate drive in bootstrap or isolated DC/DC configurations. |
| 16 | Dead time control | DT pin accepts external resistor to ground (RDT) to set dead time from ~400 ps to >1 µs - prevents shoot-through in half-bridge switches. |
Key Features
| Feature | Design Value |
|---|---|
| Two isolated drivers in one package | Eliminates need for two discrete optocouplers or isolated gate drivers - reduces PCB area by >40% and improves channel matching. |
| Programmable dead time with overlap protection | Prevents simultaneous conduction in half-bridge legs using user-configurable RDT; eliminates external logic or timing ICs. |
| RF-based isolation barrier | Delivers 45 ns propagation delay and superior CMTI (>35 kV/µs) vs. optocoupler-based alternatives - critical for fast-switching SiC/GaN systems. |
| Independent UVLO per power domain | Monitors VDDI, VDDA, and VDDB separately - ensures safe shutdown if any rail drops below 8 V, preventing partial drive failures. |
| SOIC-16 wide-body package | Provides 2.5 kVRMS isolation with industry-standard footprint - enables drop-in replacement of legacy isolated drivers without layout change. |
Applications
| Industrial Inverters | Solar Power Optimizers |
|---|---|
Use Scenario: Isolated gate drive for 1200 V IGBTs in three-phase motor drives operating at 16 kHz PWM frequency. IC Role / Device Role / Timing Role: High-side/low-side driver with programmable dead time ensuring shoot-through prevention during rapid load transients. Use Value: 4.0 A peak current enables direct drive of high-Qg IGBTs; 45 ns propagation delay minimizes timing uncertainty in closed-loop field-oriented control. |
Use Scenario: Module-level power electronics (MLPE) in residential solar arrays requiring compact, reliable half-bridge switching. IC Role / Device Role / Timing Role: Isolated gate driver for SiC MOSFETs in bidirectional DC/DC converters interfacing PV panels and battery storage. Use Value: 2.5 kVRMS isolation meets IEC 62109 safety requirements; SOIC-16 wide-body package supports high-density thermal design. |
| Onboard EV Chargers | Industrial Motor Drives |
Use Scenario: Secondary-side gate driving in isolated AC/DC PFC stages of 11 kW OBCs with active clamp flyback topology. IC Role / Device Role / Timing Role: Dual isolated driver controlling high-side and low-side switches in synchronous rectification and clamp circuits. Use Value: Independent VDDA/VDDB supplies allow optimized gate voltage for Si MOSFETs and GaN HEMTs; 8 MHz max frequency supports ZVS operation. |
Use Scenario: Gate driving for 650 V trench MOSFETs in variable-frequency HVAC compressors operating at 4–20 kHz. IC Role / Device Role / Timing Role: Half-bridge driver with TTL inputs and disable functionality for emergency stop integration. Use Value: >400 mV input hysteresis rejects EMI from adjacent motor windings; –40°C to +125°C rating ensures reliability in enclosed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8233BD-D-IS | 5.0 kVRMS isolation rating; same 4.0 A output, SOIC-16 WB package, and VIA/VIB inputs. | Required where reinforced insulation per UL1577 ≥5000 VRMS is mandated (e.g., medical 2 MOPP, industrial PLC backplanes). | Select Si8233BD-D-IS when system-level safety certification demands higher isolation voltage - no PCB or firmware changes needed. |
| UCC21520DW | TI part with 5.7 kVRMS isolation, 4-A source/6-A sink, and integrated Miller clamp; requires external dead-time circuitry. | Better suited for ultra-high-reliability EV traction inverters needing enhanced CMTI (>100 kV/µs) and active Miller clamping. | Choose UCC21520DW only if design requires active Miller clamping or >5.0 kVRMS isolation - layout and BOM differ due to different pinout and bias requirements. |
Compared with SI8233BB-D-IS, Si8233BD-D-IS offers identical functionality with higher isolation voltage for stricter safety standards, while UCC21520DW adds Miller clamping but lacks built-in dead-time programming - making SI8233BB-D-IS optimal for cost-sensitive industrial inverters where 2.5 kVRMS suffices.
Availability
SI8233BB-D-IS is available at Aetrix Electronics and suitable for industrial inverters, solar power optimizers, onboard EV chargers, and industrial motor drives requiring stable component supply across extended product lifecycles.
Supply support for SI8233BB-D-IS 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 Si823x family was designed specifically for isolated gate driving in high-efficiency power conversion systems - targeting industrial motor control, renewable energy, and automotive electrification applications with emphasis on reliability, timing precision, and safety certification.
FAQ
What is the maximum isolation voltage rating for SI8233BB-D-IS?
The SI8233BB-D-IS has a certified 2.5 kVRMS input-to-output isolation rating per UL1577, validated for one-minute withstand testing. This rating applies to the SOIC-16 wide-body package and supports reinforced insulation in industrial power supplies and inverters meeting IEC 62368-1 requirements.
Does SI8233BB-D-IS support programmable dead time, and how is it configured?
Yes, SI8233BB-D-IS supports programmable dead time via an external resistor (RDT) connected from pin 16 (DT) to ground. Using Equation 1 from the datasheet (DT ≈ 10 × RDT), dead time can be set from ~400 ps to over 1 µs. A 0.1 µF ceramic capacitor placed near the DT pin improves noise immunity.
What are the UVLO thresholds for SI8233BB-D-IS, and how do they affect operation?
SI8233BB-D-IS features independent 8 V UVLO thresholds on VDDI, VDDA, and VDDB. When any supply falls below 8 V, its associated output is forced low. This prevents partial or erratic gate drive during brown-out conditions - critical for safe shutdown in motor drives and inverters.
Can SI8233BB-D-IS drive both MOSFETs and IGBTs directly?
Yes, SI8233BB-D-IS delivers 4.0 A peak source/sink current into capacitive loads, enabling direct gate drive of medium-power MOSFETs (Qg ≤ 100 nC) and IGBTs (Qg ≤ 80 nC) without external buffers. Its 12–24 V output supply range supports standard ±15 V gate bias schemes used in industrial power modules.
Is SI8233BB-D-IS qualified for automotive applications?
No - SI8233BB-D-IS is an industrial-grade part (suffix "-I"). For automotive use, Skyworks offers SI8233BB-AS (AEC-Q100 qualified, PPAP-supported, IMDS/CAMDS compliant). The "-IS" suffix confirms industrial qualification per JEDEC standards, not AEC-Q100.
SI8233BB-D-IS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 20kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 60ns, 60ns
- 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:
- 9.4V ~ 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, UR, VDE
SI8233BB-D-IS FAQ
1.How can I place an order for SI8233BB-D-IS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8233BB-D-IS 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 SI8233BB-D-IS reliable?
The price and inventory of SI8233BB-D-IS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8233BB-D-IS is usually 5 days.
3.What payment methods are accepted for SI8233BB-D-IS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8233BB-D-IS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8233BB-D-IS?
SI8233BB-D-IS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8233BB-D-IS 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 SI8233BB-D-IS?
For technical support, including SI8233BB-D-IS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8233BB-D-IS requirements.
6.How does Aetrix verify that SI8233BB-D-IS is sourced from the original manufacturer or authorized distributors?
All SI8233BB-D-IS 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 SI8233BB-D-IS meets industry standards.
7.What is the process for return or replacement of SI8233BB-D-IS?
All SI8233BB-D-IS units undergo pre-shipment inspection (PSI). If there is an issue with SI8233BB-D-IS, 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 SI8233BB-D-IS part is unused and in its original packaging.
Return procedure for SI8233BB-D-IS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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