IRS21091PBF

Gate Driver Overview

The IRS21091PBF is a high-voltage, high-speed power MOSFET and IGBT driver from Infineon Technologies. It features independent high-side and low-side referenced output channels within an 8-PDIP package. The device supports a gate drive supply range of 10 V to 20 V and includes undervoltage lockout for both channels. It integrates internal dead-time control logic to prevent simultaneous conduction of switching devices in half-bridge configurations.

Gate Driver Feature Summary

• Integrates internal dead-time control logic to prevent simultaneous conduction of high-side and low-side switches
• Provides independent high-side and low-side referenced output channels for half-bridge applications
• Includes undervoltage lockout protection for both driver channels

Gate Driver Applications

• Half-bridge power converter circuits
• MOSFET and IGBT gate driving
• Motor control systems

Gate Driver Procurement Notes

Verify the specific suffix 'PBF' confirms lead-free packaging and RoHS compliance as per Infineon standards. Confirm the 8-PDIP through-hole package matches your PCB footprint requirements. Check current lifecycle status, as older Infineon drivers may have obsolescence notices or recommended replacements available from the manufacturer.

Gate Driver Selection Notes

Select this component when a dedicated half-bridge driver with integrated dead-time control is required. Ensure the input logic voltage levels (3.3V, 5V, or 15V compatible) match your microcontroller or PWM controller outputs. Verify that the 600V blocking capability meets the bus voltage requirements of your specific power stage design.

Gate Driver Part Context

This part belongs to the IRS2109 family of high-voltage gate drivers. It is functionally similar to the IRS2109 but includes additional integrated dead-time control logic. The PBF suffix indicates a Pb-Free (lead-free) product variant manufactured by Infineon Technologies, suitable for environmentally compliant assembly processes.

Gate Driver Replacement Considerations

The IRS2109STRPBF is a recommended replacement from Infineon, offering the same functionality in a surface-mount SOIC-8 package instead of the PDIP-8 through-hole package. Verify pin compatibility and thermal management differences when substituting.