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Skyworks Solutions Inc. SI8233CB-C-IMR
- Part No.:
- SI8233CB-C-IMR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 14-VFLGA
- Datasheet:
-
SI8233CB-C-IMR.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 14LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,353
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Product details
Overview
SI8233CB-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 IGBT/MOSFET drive in high-reliability power converters and motor drives.
For engineers reviewing the SI8233CB-C-IMR datasheet, SI8233CB-C-IMR pinout, SI8233CB-C-IMR application, or SI8233CB-C-IMR equivalent, key selection criteria include its 4.0 A sink/source capability, 5 kVRMS reinforced insulation (UL/VDE/CSA/CQC certified), overlap protection logic, and compatibility with 12–24 V driver supplies in industrial inverters and isolated DC-DC systems.
Technical Context
The SI8233CB-C-IMR implements RF-based silicon isolation with on/off keying modulation across a semiconductor barrier, enabling robust noise immunity (>45 kV/µs CMTI) without optical degradation. Its dual-channel architecture supports independent high-side and low-side control via TTL-compatible inputs with 400 mV hysteresis.
It features integrated undervoltage lockout (UVLO) on both input (4.0 V typ) and output sides (5/8/10/12.5 V selectable thresholds), programmable dead time (70–900 ns via external resistor), and overlap protection to prevent shoot-through in half-bridge topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4.0 A sink / 2.0 A source per channel - enables direct drive of medium-power IGBTs and MOSFETs without external buffers. |
| Isolation Rating | 5 kVRMS (1 min, UL1577) - meets reinforced insulation requirements for 600 VRMS working voltage in industrial and medical equipment. |
| Propagation Delay | ≤60 ns (max) - supports >8 MHz switching frequency with tight timing control in high-efficiency SMPS and servo drives. |
| Common-Mode Transient Immunity | ≥45 kV/µs - ensures reliable operation in noisy high-dv/dt environments like motor inverters and solar string converters. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial ambient conditions without derating. |
| Supply Voltage Range | VDDI: 2.7–5.5 V; VDDA/VDDB: 6.5–24 V - allows flexible biasing from logic-level controllers and high-voltage gate supplies. |
| Input Hysteresis | 400 mV - rejects noise on control lines in electrically harsh environments without external Schmitt triggers. |
Pinout & Package
SI8233CB-C-IMR is housed in a RoHS-compliant wide-body SOIC-16 package (10.3 mm × 10.3 mm, 2.3 mm height) with creepage/clearance ≥8.0 mm and 5 kVRMS isolation rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Input-side pins (GNDI, VDDI, VIA, VIB, DISABLE) | Form isolated input domain: logic supply, TTL inputs, and disable control referenced to GNDI. |
| 9, 10, 11, 12, 13, 14, 15, 16 | Output-side pins (GNDA, VDDA, VOA, GNDB, VDDB, VOB) | Form isolated output domain: dual gate-drive supplies and outputs referenced to separate GNDA/GNDB grounds. |
| VIA / VIB | Independent high-side/low-side inputs | Enable asymmetric PWM control with programmable dead time; no internal cross-conduction path. |
| VOA / VOB | High-side/low-side gate drive outputs | 4.0 A sink capability allows fast turn-off of large gate capacitances; RON(SINK) = 1.0 Ω ensures low conduction loss. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Dead Time | 70–900 ns via single external resistor - eliminates need for external timing ICs in half-bridge designs. |
| Overlap Protection | Hardware-enforced interlock prevents simultaneous high/low-side conduction - critical for preventing shoot-through in bridge circuits. |
| Reinforced Insulation Certification | UL 1577 (5 kVRMS), VDE 0884-5, CSA 5A, CQC GB4943.1 - enables single-component safety compliance in Class I/II medical and industrial systems. |
| Thermal Robustness | 150 °C max junction temperature with 100 °C/W θJA - supports compact heatsinkless layouts in space-constrained power modules. |
| AEC-Q100 Qualified | Grade 1 (–40 °C to +125 °C) - validated for automotive traction inverter auxiliary drives and onboard chargers. |
Applications
| Motor Control Systems | Isolated DC-DC Power Supplies |
|---|---|
Use Scenario: Driving IGBT half-bridges in 3-phase PMSM servo drives for factory automation. IC Role / Device Role / Timing Role: High-side/low-side isolated gate driver with programmable dead time and overlap protection. Use Value: 4.0 A peak sink current reduces gate resistor count; 60 ns propagation delay enables precise 20 kHz PWM timing synchronization. | Use Scenario: Secondary-side synchronous rectifier control in isolated 1 kW telecom DC-DC bricks. IC Role / Device Role / Timing Role: Dual isolated driver delivering independent gate signals across transformer barrier. Use Value: 5 kVRMS isolation meets IEC 62368-1 reinforced insulation; 45 kV/µs CMTI suppresses noise coupling from primary-side switching transients. |
| Solar Inverters | Industrial Motor Drives |
Use Scenario: Half-bridge gate drive in string-level MPPT inverters operating at 1000 V DC bus. IC Role / Device Role / Timing Role: Isolated HS/LS driver with UVLO monitoring on both input and output supplies. Use Value: Dual UVLO (input: 4.0 V typ; output: 12.5 V option) prevents erratic switching during brownout or bootstrap capacitor sag. | Use Scenario: Gate driving SiC MOSFETs in variable-frequency HVAC compressors. IC Role / Device Role / Timing Role: High-speed isolated driver supporting >100 kHz switching with minimal propagation skew. Use Value: ≤5.6 ns pulse width distortion ensures matched rise/fall timing across channels - critical for minimizing EMI in high-frequency inverters. |
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 |
|---|---|---|---|
| ADUM4223BRIZ | 2.5 A peak output; 3.75 kVRMS isolation; no programmable dead time; fixed 50 ns propagation delay. | Limited to lower-power MOSFETs; requires external dead-time circuitry for half-bridge use. | Choose when cost sensitivity outweighs need for 4 A drive strength and integrated dead-time control. |
| UCC21520CDW | 4 A peak output; 5 kVRMS isolation; dual-input architecture; no overlap protection logic; 35 ns typical propagation delay. | Lacks hardware interlock - relies on controller-level dead-time generation. | Prefer when system-level timing control is already implemented and faster propagation is prioritized over shoot-through prevention. |
Compared with ADUM4223BRIZ and UCC21520CDW, the SI8233CB-C-IMR uniquely combines 4.0 A drive strength, programmable dead time, and hardware-enforced overlap protection in a single 5 kVRMS SOIC-16 package - reducing BOM count and improving functional safety in high-reliability bridge topologies.
Availability
SI8233CB-C-IMR is available at Aetrix Electronics and suitable for motor control systems, solar inverters, and isolated DC-DC power supplies requiring stable component supply, long-term lifecycle support, and certified reinforced insulation.
Supply support for SI8233CB-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-integration, high-reliability isolated gate drivers targeting high-efficiency power conversion in inverters, motor drives, and isolated power supplies where safety certification and noise immunity are critical.
FAQ
What is the maximum isolation voltage rating for SI8233CB-C-IMR?
The SI8233CB-C-IMR is rated for 5 kVRMS input-to-output isolation per UL1577 (1 minute test), with production-tested withstand voltage of 6.0 kVRMS. This applies specifically to the wide-body SOIC-16 package variant denoted by the "-IMR" suffix, and is validated under reinforced insulation standards including VDE 0884-5 and CSA 5A.
Does SI8233CB-C-IMR support programmable dead time, and how is it configured?
Yes, SI8233CB-C-IMR supports programmable dead time from 70 ns to 900 ns using a single external resistor (RDT) connected between the DT pin and VDDI. The SI8233CB-C-IMR datasheet specifies RDT values from 6 kΩ to 220 kΩ, with 100 kΩ yielding ~900 ns. This feature is integrated into the silicon and requires no external logic.
What are the UVLO thresholds for SI8233CB-C-IMR on the input and output supplies?
The SI8233CB-C-IMR has an input-side UVLO threshold of 4.0 V (typical), with hysteresis of 250 mV. For output supplies (VDDA/VDDB), it supports selectable UVLO thresholds of 5 V, 8 V, 10 V, or 12.5 V - determined by part number variant and confirmed in the ordering guide. The SI8233CB-C-IMR uses the 12.5 V option.
Can SI8233CB-C-IMR drive SiC MOSFETs directly, and what gate resistance is recommended?
Yes, SI8233CB-C-IMR can directly drive discrete SiC MOSFETs with QG ≤ 50 nC at 100 kHz switching. With its 4.0 A sink and 2.0 A source capability, a gate resistor of 2.2–10 Ω is typically used to balance switching speed and dV/dt control. Layout must minimize loop inductance, especially for high-di/dt SiC applications.
Is SI8233CB-C-IMR AEC-Q100 qualified, and for which automotive applications is it approved?
Yes, SI8233CB-C-IMR is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C). It is approved for use in automotive auxiliary power modules, onboard chargers, and 48 V mild-hybrid traction inverters - specifically where reinforced isolation, high CMTI, and overlap protection are required for functional safety compliance.
SI8233CB-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:
- 12.2V ~ 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
SI8233CB-C-IMR FAQ
1.How can I place an order for SI8233CB-C-IMR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8233CB-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 SI8233CB-C-IMR reliable?
The price and inventory of SI8233CB-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 SI8233CB-C-IMR is usually 5 days.
3.What payment methods are accepted for SI8233CB-C-IMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8233CB-C-IMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8233CB-C-IMR?
SI8233CB-C-IMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8233CB-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 SI8233CB-C-IMR?
For technical support, including SI8233CB-C-IMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8233CB-C-IMR requirements.
6.How does Aetrix verify that SI8233CB-C-IMR is sourced from the original manufacturer or authorized distributors?
All SI8233CB-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 SI8233CB-C-IMR meets industry standards.
7.What is the process for return or replacement of SI8233CB-C-IMR?
All SI8233CB-C-IMR units undergo pre-shipment inspection (PSI). If there is an issue with SI8233CB-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 SI8233CB-C-IMR part is unused and in its original packaging.
Return procedure for SI8233CB-C-IMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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