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Skyworks Solutions Inc. SI8233BB-C-IMR
- Part No.:
- SI8233BB-C-IMR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 14-VFLGA
- Datasheet:
-
SI8233BB-C-IMR.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 14LGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,594
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Product details
Overview
SI8233BB-C-IMR from Silicon Labs is a 4.0 A peak-output, high-side/low-side isolated gate driver with 5 kVRMS input-to-output isolation, 60 ns max propagation delay, and programmable dead time. It integrates two independent isolated channels in a wide-body SOIC-16 package and is designed for driving IGBTs and MOSFETs in high-voltage half-bridge power stages.
For engineers reviewing the SI8233BB-C-IMR datasheet, SI8233BB-C-IMR pinout, SI8233BB-C-IMR application, or SI8233BB-C-IMR equivalent, key selection considerations include its 4.0 A sink/source capability, TTL-compatible dual-input logic, overlap protection, –40 to +125 °C operating range, and UL/VDE/CSA safety certifications for reinforced insulation.
Technical Context
The SI8233BB-C-IMR implements RF-based on/off keying across a silicon isolation barrier, enabling robust noise immunity (>45 kV/µs CMTI) without startup initialization. Its architecture supports independent high-side and low-side control inputs (VIA/VIB), internal undervoltage lockout on both input (4.0 V typ) and driver supplies (5–12.5 V selectable UVLO thresholds), and programmable dead time via external resistor (70–900 ns).
It delivers 4.0 A peak sink current and 2.0 A peak source current per channel with <12 ns rise/fall times (CL = 200 pF), operates up to 8 MHz switching frequency, and maintains isolation integrity under differential voltage stress up to 1500 VDC between drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4.0 A sink / 2.0 A source per channel - drives high-gate-charge IGBTs/MOSFETs directly without external buffers. |
| Propagation Delay | ≤60 ns max - enables precise timing control in high-frequency half-bridge topologies (e.g., >500 kHz SMPS). |
| Isolation Rating | 5 kVRMS (UL1577), 891 Vpeak working voltage (IEC 60747-5-5) - certified for reinforced insulation in industrial & solar inverters. |
| Operating Temperature | –40 to +125 °C - supports operation in motor drives and automotive under-hood environments. |
| Input Logic | TTL-compatible with 400 mV hysteresis - rejects noise on control lines in electrically noisy power systems. |
| Dead Time Control | Programmable 70–900 ns via external resistor - prevents shoot-through in bridge configurations without MCU intervention. |
| CMTI | ≥45 kV/µs - ensures reliable operation during fast dv/dt transients in SiC/GaN-based converters. |
Pinout & Package
SI8233BB-C-IMR is housed in a RoHS-compliant wide-body SOIC-16 package (WBSOIC-16) with 8.0 mm creepage/clearance, optimized for high-voltage isolation. Pin functions are validated per Silicon Labs Rev. 1.5 datasheet Section 5 and Figure 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | High-side input | Active-high TTL input controlling VOA output; enables independent HS logic in half-bridge. |
| VIB | Low-side input | Active-high TTL input controlling VOB output; paired with VIA for complementary drive. |
| VOA | High-side output | 4.0 A capable gate driver output referenced to GNDA; drives high-side switch gate. |
| VOB | Low-side output | 4.0 A capable gate driver output referenced to GNDB; drives low-side switch gate. |
| VDDI | Input-side supply | 2.7–5.5 V logic supply; powers input circuitry and isolation transmitter. |
| VDDA / VDDB | Driver-side supplies | 6.5–24 V per channel; powers output drivers and defines gate drive voltage level. |
| GNDI | Input ground | Reference for VIA/VIB inputs and VDDI; galvanically isolated from driver grounds. |
| GNDA / GNDB | Driver grounds | Separate grounds for each output channel; enable floating high-side and independent low-side biasing. |
| DISABLE | Global disable | Active-high signal forcing both outputs low; used for fault shutdown or soft-start sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Overlap protection | Hardware-enforced minimum dead time prevents simultaneous conduction in half-bridge configurations. |
| Programmable dead time | External resistor sets 70–900 ns delay between HS/LS transitions - eliminates software timing dependency. |
| Reinforced insulation | UL 1577 (5 kVRMS), VDE 0884-5, CSA 5A, CQC GB4943.1 - meets safety requirements for mains-connected equipment. |
| High CMTI | 45 kV/µs minimum - sustains reliable operation during rapid common-mode transients in SiC/GaN inverters. |
| AEC-Q100 qualified | Grade 1 (–40 to +125 °C) - validated for automotive powertrain and onboard charger applications. |
Applications
| Motor Drive Inverter | Solar DC-AC Inverter |
|---|---|
Use Scenario: Driving IGBTs in 3-phase traction inverters for EVs and industrial servo drives. IC Role / Device Role / Timing Role: High-side/low-side isolated gate driver providing synchronized, shoot-through-protected switching of half-bridge legs. Use Value: 4.0 A peak drive current ensures fast turn-on of high-Ciss IGBTs; 60 ns propagation matching minimizes phase skew across motor phases. | Use Scenario: Controlling H-bridge MOSFETs in transformerless string inverters for residential PV systems. IC Role / Device Role / Timing Role: Isolated gate driver enabling grounded-leg topology with reinforced insulation for leakage current compliance. Use Value: 5 kVRMS isolation and 891 Vpeak working voltage meet IEC 62109 and UL 1741 safety standards for ungrounded PV systems. |
| Industrial UPS | Plasma Display Driver |
Use Scenario: Gate driving in bidirectional DC-DC converters and static switch modules within online UPS systems. IC Role / Device Role / Timing Role: Dual-channel isolated driver supporting synchronous rectification and inverter mode switching. Use Value: Independent GNDA/GNDB grounds allow flexible layout for high-side bootstrap vs. isolated supply topologies. | Use Scenario: Driving sustain and scan electrodes in AC plasma display panels requiring high-voltage, high-speed switching. IC Role / Device Role / Timing Role: High-current isolated driver delivering fast edge rates to capacitive panel loads. Use Value: <12 ns rise/fall time (CL = 200 pF) and 8 MHz max frequency support high-resolution video frame rates. |
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 |
|---|---|---|---|
| Si8233AD-C-IMR | Same 4.0 A HS/LS driver, but with 12.5 V UVLO threshold (vs. 5 V in SI8233BB-C-IMR); higher VDDA/VDDB UVLO trip point. | Preferred where driver supply rails operate near 15 V and require tighter UVLO margin against brownout. | Select SI8233BB-C-IMR for 12 V driver supplies with 5 V UVLO; choose Si8233AD-C-IMR for 15 V supplies needing 12.5 V UVLO. |
| UCC21520DW | TI 4-A dual-channel isolated driver with 5.7 kVRMS isolation, 35 V VDDA/VDDB rating, and integrated Miller clamp; no programmable dead time. | Better suited for GaN FETs requiring active Miller clamping; lacks hardware dead-time programming. | Choose UCC21520DW when Miller clamping is required; retain SI8233BB-C-IMR for designs prioritizing programmable dead time and AEC-Q100 qualification. |
Compared with Si8233AD-C-IMR and UCC21520DW, SI8233BB-C-IMR uniquely combines AEC-Q100 Grade 1 qualification, 5 kVRMS isolation with 891 Vpeak working voltage, and resistor-programmable dead time - making it optimal for automotive and industrial inverters demanding predictable shoot-through prevention without MCU overhead.
Availability
SI8233BB-C-IMR is available at Aetrix Electronics and suitable for motor control systems, solar inverters, and industrial UPS applications requiring stable component supply, long-term lifecycle support, and certified reinforced insulation.
Supply support for SI8233BB-C-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
Silicon Labs is a fabless semiconductor company specializing in precision timing, isolation, and mixed-signal ICs for industrial, automotive, and communications markets.
The Si823x product line delivers high-reliability isolated gate drivers for high-voltage power conversion, emphasizing safety certification, noise immunity, and integration to replace optocoupler-based solutions in half-bridge and dual-drive topologies.
FAQ
What is the maximum isolation voltage rating for SI8233BB-C-IMR?
SI8233BB-C-IMR is rated for 5 kVRMS input-to-output isolation per UL 1577 (1 minute test), with production-tested withstand voltage of 6.0 kVRMS. Its wide-body SOIC-16 package achieves 8.0 mm creepage and clearance, supporting 891 Vpeak working voltage per IEC 60747-5-5 for reinforced insulation in mains-connected equipment.
Does SI8233BB-C-IMR support programmable dead time, and how is it configured?
Yes, SI8233BB-C-IMR supports hardware-programmable dead time via an external resistor connected to the DT pin. With RDT = 6 kΩ, dead time is ~70 ns; with RDT = 100 kΩ, it is ~900 ns. This feature is implemented in the Si8233BB-C-IMR's internal logic to prevent shoot-through without firmware intervention.
What are the UVLO thresholds for SI8233BB-C-IMR's driver supplies (VDDA/VDDB)?
SI8233BB-C-IMR has a 5 V nominal UVLO threshold for VDDA and VDDB. The rising threshold is 5.20–6.30 V, falling threshold is 4.90–6.00 V, and hysteresis is 280 mV. These values ensure stable gate drive during supply ramp-up/down and reject brief dips in 12 V rail systems.
Can SI8233BB-C-IMR drive both IGBTs and MOSFETs effectively?
Yes, SI8233BB-C-IMR delivers 4.0 A peak sink and 2.0 A peak source current per channel with <12 ns rise/fall times (CL = 200 pF), enabling direct drive of high-Ciss MOSFETs and IGBTs used in motor drives and inverters. Its 6.5–24 V VDDA/VDDB range supports standard 12 V or 15 V gate biasing schemes.
Is SI8233BB-C-IMR qualified for automotive applications?
Yes, SI8233BB-C-IMR is AEC-Q100 qualified (Grade 1, –40 to +125 °C) and certified to UL, VDE, CSA, and CQC safety standards. Its reinforced insulation, high CMTI (>45 kV/µs), and thermal derating down to 150 °C case temperature make it suitable for automotive onboard chargers and traction inverters.
SI8233BB-C-IMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 14-VFLGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 14-LGA (5x5)
- Approval Agency:
- CQC, CSA, UR, VDE
SI8233BB-C-IMR FAQ
1.How can I place an order for SI8233BB-C-IMR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8233BB-C-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 SI8233BB-C-IMR reliable?
The price and inventory of SI8233BB-C-IMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8233BB-C-IMR is usually 5 days.
3.What payment methods are accepted for SI8233BB-C-IMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8233BB-C-IMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8233BB-C-IMR?
SI8233BB-C-IMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8233BB-C-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 SI8233BB-C-IMR?
For technical support, including SI8233BB-C-IMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8233BB-C-IMR requirements.
6.How does Aetrix verify that SI8233BB-C-IMR is sourced from the original manufacturer or authorized distributors?
All SI8233BB-C-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 SI8233BB-C-IMR meets industry standards.
7.What is the process for return or replacement of SI8233BB-C-IMR?
All SI8233BB-C-IMR units undergo pre-shipment inspection (PSI). If there is an issue with SI8233BB-C-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 SI8233BB-C-IMR part is unused and in its original packaging.
Return procedure for SI8233BB-C-IMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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