FDMF6840C3

Full Half-Bridge (H Bridge) Drivers Overview

The FDMF6840C3 is a half-bridge DrMOS module from onsemi, integrating high-side and low-side drivers with power MOSFETs in a compact PQFN-40 package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports junction temperatures from -40°C to +150°C. The device delivers an output current of 50 A with rise and fall times of 10 ns. Designed for high-frequency applications, it utilizes SyncFET technology to enhance efficiency and reduce component count in synchronous buck converter architectures.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Integrates high-side and low-side gate drivers with power MOSFETs into a single compact module
• Supports high switching frequencies with fast 10 ns rise and fall times
• Operates reliably across extended temperature ranges up to +150°C junction temperature
• Utilizes SyncFET technology for optimized performance in synchronous rectification

Full Half-Bridge (H Bridge) Drivers Applications

• Synchronous buck converters
• Point-of-load (POL) regulation
• High-density power distribution systems

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify the exact suffix designation when ordering, as variations such as FDMF6840C-F013 may exist. Confirm availability status directly with authorized distributors, as some variants are marked as obsolete or end-of-life. Ensure compatibility with your PCB footprint, specifically the PQFN-40 EP (6x6) package dimensions. Cross-reference electrical specifications against your system requirements before finalizing procurement decisions.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component for designs requiring high current density and minimal board space. The integrated nature simplifies thermal management compared to discrete solutions. Ensure the input voltage aligns with the 4.5 V to 5.5 V operating range. Consider the 50 A output capability relative to your load requirements. Verify that the 10 ns switching speed meets your electromagnetic interference constraints.

Full Half-Bridge (H Bridge) Drivers Part Context

This part belongs to onsemi's SyncFET family, which combines gate drivers and power MOSFETs to simplify power supply design. The FDMF6840C3 specifically targets high-efficiency, high-current applications where size and thermal performance are critical. It represents a move towards highly integrated power stages, reducing the bill of materials and assembly complexity for modern electronic devices.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult onsemi technical support for direct replacements or pin-compatible alternatives if this specific model is unavailable.