IRS21531DSPBF

Gate Driver Overview

The IRS21531DSPBF is a self-oscillating half-bridge driver IC manufactured by Infineon Technologies, designed for driving high-side and low-side switches. It operates within a supply voltage range of 10.1 V to 16.8 V and delivers an output current of 260 mA. The device features a rise time of 120 ns and a fall time of 50 ns, with maximum on/off delay times of 350 ns. It supports CMOS logic inputs and functions in a synchronous configuration. The component is housed in an SOIC-8 surface-mount package and is rated for operation between -40°C and +125°C, with a power dissipation of 625 mW.

Gate Driver Feature Summary

• Integrates self-oscillating functionality for simplified control circuitry
• Provides dedicated high-side and low-side gate drive outputs
• Supports synchronous operation with CMOS-compatible logic inputs

Gate Driver Applications

• Driving high-side and low-side power switches in half-bridge configurations
• Self-oscillating power supply topologies requiring integrated timing
• Industrial motor control systems utilizing half-bridge architectures

Gate Driver Procurement Notes

Verify the specific suffix 'bF' against official Infineon documentation to confirm lead-free compliance and RoHS status, as packaging variations may exist. Confirm that the SOIC-8 package matches your PCB footprint requirements. Check current lifecycle status, as some sources indicate potential obsolescence or end-of-life phases for this component. Ensure moisture sensitivity handling protocols are followed during assembly.

Gate Driver Selection Notes

Select this component when a self-oscillating half-bridge driver is required to reduce external timing components. It is suitable for applications needing moderate output current (260 mA) and fast switching speeds. Consider the SOIC-8 package size and thermal dissipation capabilities relative to your board layout. Verify input logic compatibility with your control source before integration.

Gate Driver Part Context

This part belongs to the IRS2153x series of self-oscillating half-bridge drivers from Infineon. It shares functional similarities with other variants like the IRS21531DSTRPBF but differs in packaging and potentially lifecycle status. The series is designed for efficient power conversion applications where internal oscillation simplifies the design compared to externally clocked drivers.

Gate Driver Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.