IR3556MTRPBF

Full Half-Bridge (H Bridge) Drivers Overview

The IR3556MTRPBF is a discontinued PowIRstage synchronous buck converter gate driver manufactured by Infineon Technologies. It integrates high-side and low-side drivers with protection features including overcurrent, overtemperature, overvoltage, and UVLO. The device operates within a supply voltage range of 4.5V to 7V and supports load voltages from 4.5V to 15V. It delivers up to 50A output current per channel and utilizes a 30-PQFN (6x6 mm) surface-mount package. The component functions as a complete power stage solution for efficient DC/DC conversion.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Integrates dual-channel gate drivers with built-in diode emulation and status flag reporting capabilities.
• Includes comprehensive fault protection mechanisms such as overcurrent limiting, thermal shutdown, and under-voltage lockout.
• Designed for direct PWM interface control in synchronous buck converter topologies.

Full Half-Bridge (H Bridge) Drivers Applications

• Synchronous buck converters
• Voltage regulators

Full Half-Bridge (H Bridge) Drivers Procurement Notes

This component is officially marked as obsolete and no longer recommended for new designs. Verification of availability should focus on surplus or secondary market sources rather than standard distribution channels. Engineers must confirm the specific manufacturing date code and storage conditions when sourcing replacement units from non-primary suppliers to ensure reliability.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Designers requiring active procurement options should evaluate alternative power management ICs that offer similar integration levels. Considerations should include compatible input voltage ranges, required output current capabilities, and package footprint compatibility. Reviewing updated product portfolios from the manufacturer ensures access to supported components with guaranteed long-term supply chains.

Full Half-Bridge (H Bridge) Drivers Part Context

The IR3556 belongs to Infineon's PowIRstage family, which combines gate drivers with integrated power MOSFETs to minimize board space and improve efficiency. This series targets high-current applications where compact form factors are critical. As an end-of-life product, it represents earlier generations of integrated power solutions before subsequent iterations introduced enhanced performance metrics.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

Public documentation identifies SIC634CD-T1-GE3 from Vishay Siliconix as a similar substitute part number.