FDMF8704V

Full Half-Bridge (H Bridge) Drivers Overview

The FDMF8704V is a half-bridge driver integrated circuit from the XS DrMOS series, manufactured by onsemi (formerly Fairchild Semiconductor). It combines high-side and low-side gate drivers with power MOSFETs in a single module. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports load voltages between 7 V and 20 V. It delivers an output current of 32 A per channel with a peak output capability of 65 A. The component is housed in a 56-PowerWFQFN Power88 package and functions within a junction temperature range of -55°C to +150°C.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Integrates high-side and low-side gate drivers with power MOSFETs into a single DrMOS module for compact design.
• Includes an internal 5 V regulator and bootstrap circuitry to simplify power supply requirements.
• Features built-in breakdown fault protection to enhance system reliability during abnormal operating conditions.

Full Half-Bridge (H Bridge) Drivers Applications

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

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify the manufacturer designation carefully, as onsemi acquired Fairchild Semiconductor's discrete and logic business. Confirm the specific suffix indicates the correct packaging variant. Check current lifecycle status, as availability may vary due to production transitions. Ensure compatibility with existing PCB footprints designed for the 56-Power88 package before finalizing procurement orders.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component when designing synchronous buck converters requiring high current density in a small footprint. The integrated DrMOS architecture reduces external component count compared to discrete solutions. Verify that the input voltage range aligns with the 4.5 V to 5.5 V driver supply requirement. Consider thermal management needs given the high current capabilities and power dissipation characteristics inherent to the Power88 package.

Full Half-Bridge (H Bridge) Drivers Part Context

This part belongs to the XS DrMOS family, which integrates gate drivers and power switches. It serves as a direct successor or alternative to earlier Fairchild Semiconductor designs in the same category. The transition from Fairchild to onsemi branding reflects corporate acquisition history rather than a change in the core product specification or functionality.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

• FDMF8704

Full Half-Bridge (H Bridge) Drivers FAQ

What is the maximum load voltage supported by the FDMF8704V?

The device supports load voltages ranging from 7 V to 20 V.

Does the FDMF8704V include protection features?

Yes, it includes breakdown fault protection to safeguard against abnormal operating conditions.