FDMF6821A

Full Half-Bridge (H Bridge) Drivers Overview

The FDMF6821A is a SyncFET DrMOS half-bridge driver manufactured by onsemi, designed for synchronous buck converter applications. It integrates high-side and low-side drivers with an output current capability of 60 A. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports load voltages from 3 V to 16 V. Key electrical parameters include rise and fall times of 10 ns, a typical on-resistance of 1 ohm for both high-side and low-side channels, and a quiescent current of 2 mA. It features PWM interface control and is housed in a 40-PQFN (6x6 mm) package.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Integrates high-side and low-side gate drivers with power MOSFETs in a single compact module.
• Includes protection mechanisms such as over-temperature shutdown, shoot-through prevention, and under-voltage lockout.
• Features bootstrap circuitry and status flag outputs for system monitoring.

Full Half-Bridge (H Bridge) Drivers Applications

• Synchronous buck converters
• Point-of-load (POL) regulation
• Server and workstation power supplies

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and material composition declarations prior to integration. Note that this part is obsolete; ensure final design acceptance accounts for end-of-life status and potential supply constraints.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select the FDMF6821A for designs requiring integrated high-current half-bridge driving with minimal external component count. Consider the 40-PQFN package footprint and thermal dissipation requirements when evaluating PCB layout. Verify compatibility with target PWM controller logic levels and input voltage ranges.

Full Half-Bridge (H Bridge) Drivers Part Context

This component belongs to the XS DrMOS series from onsemi, which focuses on high-performance, small-form-factor power management solutions. The FDMF6821A represents a specific variant within this lineup, optimized for efficiency and density in modern power delivery architectures.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, alternative sourcing requires careful evaluation of pin-to-pin compatibility and electrical parameter matching.