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IRS21867SPBF

IRS21867SPBF Description

The IRS21867SPBF from Infineon Technologies is a high-performance half-bridge gate driver IC designed for demanding power electronics applications. Housed in an 8-SOIC package, this surface-mount device operates with a supply voltage range of 10V to 20V, making it suitable for high-voltage systems. It features independent high- and low-side drivers with a 600V bootstrap capability, ensuring robust performance in half-bridge or full-bridge configurations. Although marked as Obsolete, it remains a reliable choice for legacy designs due to its fast switching characteristics (22ns rise, 18ns fall times) and 4A peak output current for both sourcing and sinking.

IRS21867SPBF Features

• High-Side Voltage Support: Bootstrap voltage up to 600V for driving high-voltage MOSFETs/IGBTs.
• Fast Switching: 22ns rise and 18ns fall times minimize switching losses, enhancing efficiency.
• High Drive Current: 4A source/sink capability ensures quick turn-on/off of power switches.
• Wide Input Compatibility: Accepts CMOS/TTL logic levels (VIL=0.8V, VIH=2.5V) for flexible interfacing.
• Robust Protection: Independent channel control prevents cross-conduction and improves system reliability.
• Compliance: ROHS3 and REACH compliant, with MSL 2 (1 Year) moisture sensitivity for industrial use.

IRS21867SPBF Applications

This gate driver excels in:

• Motor Control: Ideal for BLDC/PMSM motor drives in industrial automation and automotive systems.
• Power Supplies: Used in SMPS, inverters, and UPS designs requiring high-voltage isolation.
• Renewable Energy: Suitable for solar inverters and wind turbine converters due to its high-voltage tolerance.
• Industrial H-Bridges: Enables efficient switching in half/full-bridge topologies for welding equipment or induction heating.

Conclusion of IRS21867SPBF

The IRS21867SPBF offers a balance of speed, power, and reliability, making it a strong candidate for high-voltage switching applications despite its obsolete status. Its fast switching, high current drive, and robust isolation are key advantages over comparable drivers. Engineers working on legacy systems or replacements will find it a dependable solution for motor drives, power conversion, and industrial inverters. For new designs, verifying alternative active models from Infineon is recommended.