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IR2101STR

IR2101STR Description

The IR2101STR from Infineon Technologies is a high-voltage, high-speed half-bridge gate driver IC designed for power MOSFET and IGBT applications. Housed in an 8-SOIC package and supplied via tape & reel (TR), this obsolete but robust driver operates within a 10V to 20V supply range, supporting bootstrap voltages up to 600V. It features independent high- and low-side outputs with peak output currents of 210mA (source) and 360mA (sink), ensuring efficient switching of power devices. With rise/fall times of 100ns and 50ns (typical), it minimizes switching losses, making it suitable for high-frequency applications.

IR2101STR Features

• High-Side Voltage Capability: Supports bootstrap operation up to 600V, enabling high-voltage applications.
• Fast Switching: 100ns rise time and 50ns fall time optimize performance in high-frequency circuits.
• Robust Drive Strength: 210mA source / 360mA sink current ensures reliable gate control for power MOSFETs/IGBTs.
• Wide Supply Range: Operates from 10V to 20V, compatible with standard logic levels (VIL=0.8V, VIH=3V).
• Independent Channels: Allows flexible control of high- and low-side switches in half-bridge topologies.
• Surface-Mount Package: 8-SOIC with MSL 1 (Unlimited) moisture sensitivity, suitable for automated assembly.

IR2101STR Applications

• Motor Drives: Ideal for brushless DC (BLDC) and stepper motor controllers due to its high-side voltage tolerance.
• Switching Power Supplies: Efficiently drives half-bridge and full-bridge converters in SMPS designs.
• Inverters: Used in solar inverters and UPS systems for reliable high-voltage switching.
• Industrial Automation: Suitable for PLC and robotic control systems requiring robust gate driving.

Conclusion of IR2101STR

The IR2101STR is a versatile half-bridge gate driver offering high-voltage isolation, fast switching, and strong drive capability. While marked obsolete, its performance in motor control, power supplies, and inverters remains relevant for legacy designs or specific industrial applications. Its independent channels and wide supply range provide design flexibility, though newer alternatives may be preferred for cutting-edge projects.