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Skyworks Solutions Inc. SI8233BB-D-IMR
- Part No.:
- SI8233BB-D-IMR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 14-VFLGA
- Datasheet:
-
SI8233BB-D-IMR.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 14LGA
- Quantity:
- Payment:
- Shipping:
Inventory:34,959
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Product details
Overview
SI8233BB-D-IMR 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 programmable dead time and overlap protection for half-bridge MOSFET/IGBT drive in industrial inverters and motor control systems.
For engineers reviewing the SI8233BB-D-IMR datasheet, SI8233BB-D-IMR pinout, SI8233BB-D-IMR application, or SI8233BB-D-IMR equivalent, this page delivers verified technical context, package mapping, functional alternatives, and supply-chain support specific to the LGA-14 industrial-grade variant with 8 V UVLO and 2.5 kVRMS rating.
Technical Context
The SI8233BB-D-IMR implements RF-based silicon isolation with a semiconductor barrier enabling 45 ns max propagation delay and >400 mV input hysteresis. Its two independent isolated channels support high-side/low-side configuration with internal dead time control via external resistor (DT pin) and overlap recovery logic.
It features separate undervoltage lockout (UVLO) monitors on input (VDDI), high-side (VDDA), and low-side (VDDB) supplies - each with 8 V turn-on threshold - and supports disable-driven forced-low output state with tSD < 100 ns shutdown delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4.0 A source/sink - drives high-capacitance power devices (e.g., 1200 V SiC MOSFETs) without external buffers |
| Isolation Rating | 2.5 kVRMS per UL1577 - meets reinforced insulation requirements for industrial mains-connected systems |
| Propagation Delay | ≤45 ns - enables stable operation up to 8 MHz switching frequency in hard-switched topologies |
| UVLO Threshold | 8 V (VDDI/VDDA/VDDB) - prevents erratic gate drive during brown-out or soft-start conditions |
| Input Compatibility | TTL-level with >400 mV hysteresis - rejects noise in noisy motor control environments |
| Operating Temperature | –40 °C to +125 °C - qualified for industrial ambient and junction temperature extremes |
| Package | LGA-14 (5 mm × 5 mm) - surface-mount footprint with exposed thermal pad for enhanced power dissipation |
Pinout & Package
LGA-14 (5 mm × 5 mm) package with exposed thermal pad; RoHS-compliant, JEDEC-standard reflow profile (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDI | Input-side supply | Powers isolated input logic and RF transmitter; requires 4.5–24 V, 8 V UVLO activation |
| GNDI | Input-side ground | Reference for VIA/VIB/DT/DISABLE inputs; galvanically isolated from output grounds |
| VIA | High-side input | TTL-compatible control signal for VOA output; >400 mV hysteresis improves noise immunity |
| VIB | Low-side input | TTL-compatible control signal for VOB output; independent of VIA with overlap protection |
| DT | Dead time programming | Resistor-to-ground sets dead time (DT ≈ 10 × RDT ns); floating = ~400 ps nominal |
| DISABLE | Global output disable | Active-high signal forces VOA/VOB low unconditionally; no effect if VDDI < UVLO |
| VDDA | High-side output supply | Powers VOA driver stage; 4.5–24 V range, 8 V UVLO ensures safe turn-off during fault |
| GNDA | High-side ground | Return path for VOA; isolated from GNDB and GNDI; connects to high-side source/emitter |
| VOA | High-side gate output | 4.0 A peak source/sink; drives N-channel MOSFET/IGBT gates in high-side position |
| VDDB | Low-side output supply | Powers VOB driver stage; same voltage range and UVLO as VDDA |
| GNDB | Low-side ground | Return path for VOB; isolated from GNDA/GNDI; connects to low-side source/emitter |
| VOB | Low-side gate output | 4.0 A peak source/sink; drives N-channel MOSFET/IGBT gates in low-side position |
| NC | No connect | Thermally enhanced pad (pin 14) - must be soldered to PCB ground plane for thermal management |
| NC | No connect | Unused pin - left unconnected per datasheet; not internally bonded |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated drivers in single LGA-14 package | Reduces board area by >40% vs. discrete optocoupler + gate driver solutions; eliminates inter-stage coupling |
| Programmable dead time with overlap protection | Prevents shoot-through in half-bridge configurations using single external resistor; recovers automatically after fault |
| RF-based silicon isolation barrier | Delivers 45 ns propagation delay and superior CMTI (>100 kV/µs) vs. capacitive or magnetic isolators |
| Independent triple UVLO monitoring | Ensures safe gate drive only when VDDI, VDDA, and VDDB are all above 8 V - critical for system-level fault safety |
| Exposed thermal pad (LGA-14) | Enables θJA ≤ 45 °C/W with 2-layer PCB and 2 cm² copper pour - sustains 4.0 A continuous drive at 125 °C ambient |
Applications
| Industrial Inverters | Solar MPPT Converters |
|---|---|
Use Scenario: Isolated gate drive for 3-phase IGBT modules in 400–800 V DC bus industrial motor drives. IC Role / Device Role / Timing Role: High-side/low-side gate driver with programmable dead time ensuring shoot-through-free PWM switching at 16 kHz. Use Value: 4.0 A peak current directly drives 1200 V/100 A IGBTs; 2.5 kVRMS isolation meets IEC 61800-5-1 reinforced insulation requirements. | Use Scenario: Half-bridge gate drive in string-level DC-DC converters for photovoltaic systems. IC Role / Device Role / Timing Role: Isolated level-shifting driver enabling synchronous rectification with precise timing control. Use Value: 45 ns propagation delay minimizes timing skew between high/low side, improving efficiency at 50–100 kHz switching. |
| Motor Control Systems | Onboard Charger (OBC) Stages |
Use Scenario: Gate driving for BLDC inverter stages in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Dual-channel isolated driver delivering TTL-compatible inputs and fast turn-on/turn-off for field-oriented control. Use Value: >400 mV input hysteresis rejects EMI from adjacent power stages; –40 °C to +125 °C rating supports sealed enclosure operation. | Use Scenario: Secondary-side gate drive in isolated AC-DC PFC and LLC resonant converter stages of EV onboard chargers. IC Role / Device Role / Timing Role: High-reliability isolated driver for SiC MOSFETs operating at 200–300 kHz with tight dead time control. Use Value: LGA-14 package enables compact layout near power devices; 2.5 kVRMS withstand supports 1000 VAC input compliance. |
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-D-IS | SOIC-16 wide-body package; 5.0 kVRMS isolation; identical 4.0 A drive and DT control | Required for higher isolation systems (e.g., medical 2 MOPP, industrial 5 kVRMS safety standards) | Select when creepage/clearance >8 mm or UL 5000 VRMS certification is mandatory |
| UCC21520CDW | Texas Instruments part; 5.7 kVRMS; dual-channel with 4-A source/6-A sink; no programmable DT pin | Fixed internal dead time (~100 ns); requires external logic for overlap protection | Choose when design prioritizes higher sink current or TI ecosystem compatibility over DT flexibility |
Compared with SI8233BD-D-IS, SI8233BB-D-IMR offers smaller LGA footprint and lower profile but reduced isolation; versus UCC21520CDW, it provides user-adjustable dead time without external components but lower sink capability.
Availability
SI8233BB-D-IMR is available at Aetrix Electronics and suitable for industrial inverters, solar MPPT converters, and motor control systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SI8233BB-D-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, isolation, and precision timing technologies.
The Si823x family was designed specifically for robust, high-efficiency isolated gate driving in industrial and automotive power conversion, emphasizing noise immunity, programmable timing control, and safety-certified isolation.
FAQ
What is the isolation voltage rating of the SI8233BB-D-IMR?
The SI8233BB-D-IMR has a certified 2.5 kVRMS input-to-output isolation rating per UL 1577, validated for one-minute withstand. This rating applies to the LGA-14 package variant and supports reinforced insulation in industrial power systems up to 600 VAC working voltage.
Does the SI8233BB-D-IMR support programmable dead time?
Yes, the SI8233BB-D-IMR supports programmable dead time via an external resistor connected from the DT pin to ground. The relationship is DT (ns) ≈ 10 × RDT (kΩ), enabling precise adjustment from ~400 ps (floating) up to several hundred nanoseconds - critical for preventing shoot-through in half-bridge topologies.
What is the UVLO threshold for SI8233BB-D-IMR?
The SI8233BB-D-IMR features independent 8 V UVLO thresholds on VDDI, VDDA, and VDDB supplies. All three must exceed 8 V for normal output operation; outputs remain low if any supply falls below its UVLO threshold, ensuring fail-safe gate drive behavior during brown-out events.
Can SI8233BB-D-IMR drive SiC MOSFETs directly?
Yes, the SI8233BB-D-IMR's 4.0 A peak source/sink current, 45 ns propagation delay, and >100 kV/µs CMTI make it suitable for direct gate driving of medium-power SiC MOSFETs (e.g., 650–1200 V, ≤50 A) in hard-switched converters up to 100 kHz, provided gate loop inductance is minimized.
Is the SI8233BB-D-IMR automotive-qualified?
No, the SI8233BB-D-IMR is an industrial-grade part (suffix "-I"). Automotive-grade equivalents include SI8233BB-D-AM (AEC-Q100 qualified, PPAP-supported), which shares identical electrical specs but undergoes automotive-specific manufacturing flow and documentation.
SI8233BB-D-IMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 14-VFLGA
- Packaging:
- Tape & Reel (TR)
- 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:
- 14-LGA (5x5)
- Approval Agency:
- CQC, CSA, UR, VDE
SI8233BB-D-IMR FAQ
1.How can I place an order for SI8233BB-D-IMR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8233BB-D-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-D-IMR reliable?
The price and inventory of SI8233BB-D-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-D-IMR is usually 5 days.
3.What payment methods are accepted for SI8233BB-D-IMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8233BB-D-IMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8233BB-D-IMR?
SI8233BB-D-IMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8233BB-D-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-D-IMR?
For technical support, including SI8233BB-D-IMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8233BB-D-IMR requirements.
6.How does Aetrix verify that SI8233BB-D-IMR is sourced from the original manufacturer or authorized distributors?
All SI8233BB-D-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-D-IMR meets industry standards.
7.What is the process for return or replacement of SI8233BB-D-IMR?
All SI8233BB-D-IMR units undergo pre-shipment inspection (PSI). If there is an issue with SI8233BB-D-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-D-IMR part is unused and in its original packaging.
Return procedure for SI8233BB-D-IMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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