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IR2235J

IR2235J Description

The IR2235J from Infineon Technologies is a high-voltage, high-speed gate driver IC designed for half-bridge configurations, packaged in a 44PLCC surface-mount form factor. Operating within a 10V–20V supply range, it features six independent drivers with robust peak output currents of 250mA (source) and 500mA (sink), ensuring efficient switching of power MOSFETs or IGBTs. The IC supports bootstrap voltages up to 1200V, making it suitable for high-voltage applications. With a rise/fall time of 90ns/40ns (typical) and inverting logic inputs (VIL=0.8V, VIH=2V), it delivers precise control for power electronics systems.

IR2235J Features

• High-Side Voltage Capability: Bootstrap support up to 1200V for driving high-voltage switches.
• Fast Switching: Optimized 90ns rise and 40ns fall times minimize switching losses.
• Robust Drive Strength: 250mA source / 500mA sink current ensures reliable gate charging/discharging.
• Wide Operating Range: 10V–20V supply voltage with 125°C junction temperature (TJ) tolerance.
• Integrated Protection: Designed for REACH compliance and MSL 1 (unlimited shelf life).
• Inverting Logic Inputs: Simplified interface with standard logic levels (0.8V/2V thresholds).

IR2235J Applications

The IR2235J excels in high-power, high-frequency switching systems, including:

• Motor Drives: Precision control in industrial BLDC/PMSM motor drives.
• Power Supplies: Half-bridge converters for telecom/server PSUs.
• Renewable Energy: Inverters for solar/wind power systems requiring high-voltage isolation.
• Industrial Automation: IGBT/MOSFET driving in welding equipment or UPS systems.

Conclusion of IR2235J

The IR2235J stands out for its high-voltage tolerance, fast switching, and robust drive capability, making it ideal for demanding power electronics applications. While now obsolete, its design remains relevant for legacy systems requiring reliable half-bridge driving. Engineers should consider modern alternatives from Infineon for new designs, but the IR2235J’s performance in high-voltage environments ensures its continued use in specialized industrial and renewable energy applications.