IR2105STR

Gate Driver Overview

The IR2105STR is a half-bridge gate driver IC manufactured by Infineon Technologies, housed in an 8-SOIC surface-mount package. It features non-inverting inputs and supports high-side voltages up to 600 V via bootstrap. The device operates with supply voltages between 10 V and 20 V, delivering peak output currents of 210 mA source and 360 mA sink. Typical rise and fall times are 100 ns and 50 ns, respectively. It is designed for driving N-channel MOSFETs and IGBTs in power conversion applications.

Gate Driver Feature Summary

• Half-bridge configuration with independent high-side and low-side outputs
• Non-inverting logic input compatibility with CMOS and TTL standards
• High-voltage floating channel capability for high-side switching
• Robust design suitable for industrial and automotive environments

Gate Driver Applications

• Motor control systems
• Power supply circuits
• Inverter designs

Gate Driver Procurement Notes

Verify the specific suffix STR indicates tape-and-reel packaging. Confirm RoHS compliance status as historical data may vary. Check AEC-Q100 qualification if automotive use is required. Ensure the 8-SOIC footprint matches the PCB layout. Validate supply voltage ranges against system requirements.

Gate Driver Selection Notes

Select this component for applications requiring isolated high-side drive with moderate current capabilities. Compare peak source/sink currents against load capacitance requirements. Consider the 600 V high-side rating relative to bus voltage. Evaluate thermal performance within the SOIC package constraints.

Gate Driver Part Context

This part belongs to the IR210x series of half-bridge drivers from Infineon. It shares functional similarities with other members like IR2104 or IR2109 but differs in pinout and specific electrical ratings. The STR suffix denotes reel packaging for automated assembly.

Gate Driver Replacement Considerations

IR2104S: Similar half-bridge driver with different pinout. IR2109: Higher current capability with integrated bootstrap diode. IR2110: Standard half-bridge alternative. Verify pin-to-pin compatibility before substitution.