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IR21064S

IR21064S Description

The IR21064S from Infineon Technologies is a high-voltage, high-speed dual MOSFET gate driver designed for independent high- and low-side switching applications. Housed in a 14-pin SOIC package, this obsolete yet robust IC operates within a 10V to 20V supply range, supporting bootstrap voltages up to 600V. It delivers peak output currents of 200mA (source) and 350mA (sink), with optimized rise/fall times of 150ns and 50ns, ensuring efficient switching performance in power electronics.

IR21064S Features

• Independent Channel Control: Enables flexible high- and low-side driver configuration for half-bridge or full-bridge topologies.
• High Voltage Tolerance: Bootstrap capability up to 600V for driving high-side N-channel MOSFETs or IGBTs.
• Fast Switching: Low propagation delays and 150ns/50ns rise/fall times minimize switching losses.
• Robust Logic Interface: Compatible with 0.8V (VIL) and 2.9V (VIH) logic levels, ensuring reliable TTL/CMOS interfacing.
• Surface-Mount Design: 14-SOIC package suits compact PCB layouts in space-constrained applications.
• High Current Drive: 200mA source/350mA sink capability for rapid gate charging/discharging.

IR21064S Applications

• Motor Drives: Ideal for BLDC/PMSM motor control in industrial automation and automotive systems.
• Switched-Mode Power Supplies (SMPS): Efficiently drives MOSFETs/IGBTs in AC-DC converters and inverters.
• Solar Inverters: High-voltage isolation and fast switching suit renewable energy systems.
• Half/Full-Bridge Converters: Enables precise control in DC-DC converters and UPS systems.

Conclusion of IR21064S

The IR21064S excels in high-voltage, high-speed switching applications, offering independent channel control, robust logic compatibility, and superior current drive. While obsolete, its 600V bootstrap capability and optimized timing make it a reliable choice for legacy designs in motor drives, power supplies, and energy conversion systems. Engineers seeking alternatives should verify modern equivalents but can leverage this IC’s proven performance in demanding power electronics.