FDMF6704

Full Half-Bridge (H Bridge) Drivers Overview

The FDMF6704 is an Xtra Small High Performance and High Frequency DrMOS module manufactured by onsemi. It integrates a high-side and low-side gate driver with power MOSFETs in a compact 40-MLP (6x6 mm) package. The device operates within a supply voltage range of 4.5 V to 5.5 V, delivering a peak output current of 80 A and a continuous output current of 35 A per channel. It features fast switching characteristics with rise and fall times of 25 ns and 20 ns, respectively. The component supports PWM interfaces and includes bootstrap circuitry for high-side driving. It is designed for synchronous buck converter applications and functions reliably across a junction temperature range of -55°C to +150°C.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Integrates high-side and low-side drivers with power MOSFETs in a single compact module.
• Features fast switching speeds suitable for high-frequency operation.
• Includes built-in bootstrap circuitry for simplified high-side drive requirements.
• Provides comprehensive fault protection mechanisms including UVLO and breakdown protection.

Full Half-Bridge (H Bridge) Drivers Applications

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

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify the obsolete status before procurement as the manufacturer has issued end-of-life notices. Confirm availability through authorized distributors or secondary markets. Ensure compliance with RoHS3 and REACH regulations. Check for specific ordering suffixes if required. Validate that the 40-MLP footprint matches the target PCB design constraints.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component for designs requiring high current density in minimal board space. Consider the wide operating temperature range for harsh environments. Evaluate thermal management needs due to the integrated power stage. Verify compatibility with standard PWM control signals. Assess the need for external bootstrap components based on duty cycle requirements.

Full Half-Bridge (H Bridge) Drivers Part Context

The FDMF6704 belongs to onsemi's XS™ DrMOS series, which focuses on miniaturization without sacrificing performance. It utilizes silicon technology and is part of the SyncFET product line. This module simplifies power stage design by combining control and power elements. It targets applications where size and efficiency are critical constraints.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.