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Skyworks Solutions Inc. SI8233AB-C-IS1R
- Part No.:
- SI8233AB-C-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8233AB-C-IS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,947
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Product details
Overview
SI8233AB-C-IS1R from Silicon Laboratories 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 used in industrial inverters and motor control systems requiring reinforced insulation and overlap protection.
For engineers reviewing the SI8233AB-C-IS1R datasheet, SI8233AB-C-IS1R pinout, SI8233AB-C-IS1R application, or SI8233AB-C-IS1R equivalent, key selection criteria include its 4.0 A drive strength, dual-channel isolation architecture, 5 kVRMS safety rating, –40 to +125 °C operating range, and compatibility with MOSFET/IGBT half-bridge topologies requiring programmable dead time and overlap protection.
Technical Context
The SI8233AB-C-IS1R implements RF-based on/off keying across a silicon isolation barrier for robust noise immunity and fast signal transfer. Its dual-channel architecture supports independent high-side and low-side control with TTL-compatible inputs (VIA/VIB), internal undervoltage lockout on both input and output supplies, and configurable dead time via external resistor.
It features overlap protection logic that prevents simultaneous conduction in half-bridge configurations, and supports up to 8 MHz switching frequency with <5.6 ns pulse width distortion. The device operates with VDDI = 4.5–5.5 V and VDDA/VDDB = 6.5–24 V, enabling flexible power rail design in isolated gate drive stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4.0 A per channel - sufficient to directly drive medium-power IGBTs and MOSFETs without external buffers |
| Isolation Rating | 5 kVRMS (1 min) - meets UL 1577, VDE 0884-5, and IEC 60950-1 reinforced insulation requirements |
| Propagation Delay | ≤60 ns - enables precise timing control in high-frequency switching applications up to 8 MHz |
| Common-Mode Transient Immunity | ≥45 kV/µs - ensures reliable operation in noisy industrial environments with fast voltage transients |
| Operating Temperature | –40 to +125 °C - qualified for under-hood automotive and industrial ambient conditions |
| Input Hysteresis | 400 mV - provides noise margin against ground bounce and EMI in digital control interfaces |
| Programmable Dead Time | 70–900 ns via RDT - allows fine-tuning of shoot-through prevention in half-bridge designs |
Pinout & Package
SI8233AB-C-IS1R is housed in a RoHS-compliant wide-body SOIC-16 package (WBSOIC-16) with 8.0 mm creepage and clearance, optimized for high-voltage isolation integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Input-side terminals (GNDI, VDDI, VIA, VIB, DISABLE) | Form isolated input domain: logic interface, supply, and enable control referenced to GNDI |
| 9, 10, 11, 12, 13, 14, 15, 16 | Output-side terminals (GNDA, VDDA, VOA, GNDB, VDDB, VOB) | Form two independent isolated output domains: each drives gate of HS/LS switch with separate grounds |
Key Features
| Feature | Design Value |
|---|---|
| Two independent isolated drivers | Enables compact half-bridge gate drive without external isolation components or layout separation |
| Overlap protection with programmable dead time | Prevents shoot-through in bridge circuits; DT adjustable from 70 ns to 900 ns using single resistor |
| High CMTI (>45 kV/µs) | Maintains signal integrity during fast dV/dt events common in SiC/GaN-based power converters |
| AEC-Q100 qualified | Validated for automotive-grade reliability (Grade 1: –40 to +125 °C junction) |
| TTL-compatible inputs with 400 mV hysteresis | Directly interfaces with microcontrollers and PWM controllers without level-shifting or Schmitt triggers |
Applications
| Motor Control Systems | Solar Inverters |
|---|---|
Use Scenario: Driving IGBTs in three-phase inverter legs for HVAC compressors and industrial servo drives. IC Role / Device Role / Timing Role: High-side/low-side isolated gate driver providing synchronized, shoot-through-protected switching signals. Use Value: 4.0 A peak current and 60 ns propagation delay enable efficient switching of 1200 V IGBTs at 20 kHz with minimal dead time penalty. | Use Scenario: Gate driving MOSFETs in string-level DC-DC converters and transformerless grid-tied inverters. IC Role / Device Role / Timing Role: Reinforced-isolation driver ensuring functional safety and galvanic separation between PV array and AC grid. Use Value: 5 kVRMS isolation and IEC 60747-5-5 certification meet EN 62109 and UL 1741 SB requirements for photovoltaic systems. |
| Industrial Motor Drives | Plasma Display Power Supplies |
Use Scenario: Controlling half-bridge topologies in variable-frequency drives for pumps, fans, and conveyors. IC Role / Device Role / Timing Role: Dual-channel isolated driver delivering matched timing and overlap protection for robust PWM control. Use Value: Programmable dead time (70–900 ns) allows optimization for different gate charge profiles and switching frequencies up to 8 MHz. | Use Scenario: Driving high-voltage sustain and scan electrodes in AC plasma display panels. IC Role / Device Role / Timing Role: High-speed isolated driver supporting rapid polarity reversal and precise pulse timing. Use Value: ≤5.6 ns pulse width distortion and 12 ns typical rise/fall time ensure accurate waveform fidelity at multi-MHz switching 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-IS1R | Different UVLO thresholds: VDDIUV+ = 4.0 V (min), VDDA/VDDBUV+ = 12.5 V (min); same pinout and drive capability | Optimized for higher-voltage output rails (e.g., 15 V gate drive) with tighter UVLO hysteresis | Select when system requires 12.5 V output-supply UVLO threshold and enhanced noise immunity on driver supply rails |
| UCC21520DW | TI part with 4 A sink/source, 5 kVRMS isolation, but uses capacitive isolation and different pin mapping (e.g., no dedicated DISABLE) | Lacks programmable dead time; relies on external logic or controller for overlap control | Choose when design prioritizes TI ecosystem support and integrated Miller clamp, but can accommodate fixed dead time externally |
Compared with Si8233AD-C-IS1R and UCC21520DW, SI8233AB-C-IS1R offers identical 4.0 A drive strength and 5 kVRMS isolation but targets 5 V/12 V output supply configurations with standard 5 V input logic, making it optimal for cost-sensitive industrial inverters where programmable dead time is required and UVLO thresholds align with common 12 V gate drive rails.
Availability
SI8233AB-C-IS1R is available at Aetrix Electronics and suitable for motor control systems, solar inverters, and industrial power supplies requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.
Supply support for SI8233AB-C-IS1R 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 Laboratories is a fabless semiconductor company specializing in timing, isolation, and mixed-signal ICs for industrial, automotive, and communications markets.
The Si823x family was designed to replace optocoupler-based gate drivers with higher speed, better CMTI, and integrated safety features for isolated half-bridge and dual-drive applications in power conversion.
FAQ
What is the maximum isolation voltage rating for SI8233AB-C-IS1R?
The SI8233AB-C-IS1R is rated for 5 kVRMS input-to-output isolation (1 minute, per UL 1577), verified by production testing at 6.0 kVRMS. This rating applies specifically to the wide-body SOIC-16 package (WBSOIC-16) and supports reinforced insulation per IEC 60747-5-5 and VDE 0884 Part 5 standards.
Does SI8233AB-C-IS1R support programmable dead time, and how is it configured?
Yes, SI8233AB-C-IS1R supports programmable dead time via an external resistor (RDT) connected between the DT pin and VDDI. With RDT = 6 kΩ, dead time is ~70 ns; with RDT = 100 kΩ, it is ~900 ns. The SI8233AB-C-IS1R datasheet specifies a maximum RDT of 220 kΩ and confirms this feature is active only in high-side/low-side variants (Si8230/1/3/4).
What are the undervoltage lockout (UVLO) thresholds for SI8233AB-C-IS1R?
SI8233AB-C-IS1R has dual UVLO: input-side VDDIUV+ = 4.0 V (typ), VDDIUV– = 3.7 V (typ); output-side VDDA/VDDBUV+ = 10 V (typ) with hysteresis of 1000 mV. These thresholds ensure safe turn-off during brownout conditions on either side of the isolation barrier, and are confirmed in Table 1 of the official datasheet Rev. 1.5.
Can SI8233AB-C-IS1R drive both MOSFETs and IGBTs effectively?
Yes, SI8233AB-C-IS1R delivers 4.0 A peak sink and 2.0 A peak source current, with low output resistances (RON(SINK) = 1.0 Ω, RON(SOURCE) = 2.7 Ω). This enables direct gate driving of medium-power MOSFETs (e.g., 100 nC Qg) and IGBTs (e.g., 300 nC Qg) at switching frequencies up to 8 MHz, as validated in Figures 31–34 of the Si823x datasheet Rev. 1.5.
Is SI8233AB-C-IS1R AEC-Q100 qualified, and what grade does it meet?
Yes, SI8233AB-C-IS1R is AEC-Q100 qualified per Grade 1 requirements (–40 to +125 °C ambient), as stated in the "Features" section of the Si823x datasheet Rev. 1.5. This qualification covers stress testing for temperature cycling, HTOL, ESD, and other automotive reliability metrics, confirming suitability for under-hood and industrial environments.
SI8233AB-C-IS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- 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:
- 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, UR, VDE
SI8233AB-C-IS1R FAQ
1.How can I place an order for SI8233AB-C-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8233AB-C-IS1R 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 SI8233AB-C-IS1R reliable?
The price and inventory of SI8233AB-C-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8233AB-C-IS1R is usually 5 days.
3.What payment methods are accepted for SI8233AB-C-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8233AB-C-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8233AB-C-IS1R?
SI8233AB-C-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8233AB-C-IS1R 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 SI8233AB-C-IS1R?
For technical support, including SI8233AB-C-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8233AB-C-IS1R requirements.
6.How does Aetrix verify that SI8233AB-C-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8233AB-C-IS1R 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 SI8233AB-C-IS1R meets industry standards.
7.What is the process for return or replacement of SI8233AB-C-IS1R?
All SI8233AB-C-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8233AB-C-IS1R, 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 SI8233AB-C-IS1R part is unused and in its original packaging.
Return procedure for SI8233AB-C-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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