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Si8233BD-D-IS

Si8233BD-D-IS

MPN: SI8233BD-D-IS
Skyworks Solutions Inc.
4A Gate Driver Capacitive Coupling 5000Vrms 2 Channel 16-SOIC
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Overview

The Si8233BD-D-IS is a high-performance 2-channel isolated gate driver utilizing Skyworks proprietary capacitive coupling technology to provide 5000Vrms isolation. It features independent high-side/low-side drivers capable of delivering up to 4A peak output current with integrated programmable dead time control. This industrial and automotive grade driver is designed for high-speed switching applications requiring robust common-mode transient immunity of 20kV/us.

Why Choose This Part

The Si8233BD-D-IS offers superior reliability compared to optocoupler-based solutions, providing lower propagation delays of 60ns and tight pulse width distortion of 5.6ns. Its integrated programmable dead time and overlap protection prevent shoot-through currents, while the 20kV/us CMTI ensures stable operation in environments with high electrical noise.

Applications

Isolated Switch Mode Power Supplies (SMPS)
Provides high-speed gate drive for MOSFETs and IGBTs in AC-DC and DC-DC converters where high isolation voltage is required.
Motor Control Inverters
Used in variable frequency drives and industrial motor controllers to bridge the gap between low-voltage MCU control logic and high-voltage power stages.
Solar Inverters
Facilitates efficient power conversion in photovoltaic systems by providing fast switching and high electromagnetic immunity.
EV On-board Chargers
Supports high-efficiency power stages in electric vehicle charging systems requiring AEC-Q100 qualification and high-voltage safety barriers.

Key Specifications

Technology Capacitive Coupling
Mounting Type Surface Mount
Package / Case 16-SOIC (0.295", 7.50mm Width)
Approval Agency CQC, CSA, UR, VDE
Number of Channels 2
Voltage - Isolation 5000Vrms
Current - Peak Output 4A
Operating Temperature -40degC ~ 125degC
Rise / Fall Time (Typ) 12ns, 12ns (Max)
Supplier Device Package 16-SOIC
Voltage - Output Supply 9.4V ~ 24V
Current - Output High, Low 2A, 4A
Pulse Width Distortion (Max) 5.6ns
Propagation Delay tpLH / tpHL (Max) 60ns, 60ns
Common Mode Transient Immunity (Min) 20kV/us

Getting Started

When designing with this component, ensure decoupling capacitors are placed as close as possible to the VDDI and VDDA/VDDB pins to handle the 4A peak switching currents. Designers can use the Si823xISO-KIT evaluation board to test the isolation performance and gate drive characteristics. Programmable dead time is set via an external resistor connected to the DT pin, allowing for precise optimization based on the chosen power MOSFETs.

Also Consider

UCC21520DWR TITexas Instruments - Provides similar 4A/6A peak current capability with slightly higher CMTI of 100V/ns.