onsemi

FDMF6708N

FDMF6708N Description

The FDMF6708N is a half-bridge driver IC designed for synchronous buck converters, offering high efficiency and performance in a compact package. Manufactured by onsemi, this device is part of the XS™ DrMOS series, utilizing advanced DrMOS technology to deliver superior power management solutions. The FDMF6708N features a half-bridge output configuration, making it ideal for inductive load applications. It operates within a supply voltage range of 4.5V to 5.5V and can handle load voltages from 3V to 24V, providing flexibility for various power supply designs.

The device is rated for a maximum output current of 50A per channel, ensuring robust performance in demanding applications. The on-resistance (Rds On) is typically 900mOhm for the low-side (LS) and 800mOhm for the high-side (HS), contributing to high efficiency and low power loss. The FDMF6708N is designed for surface-mount applications, available in a 40PQFN package with tape and reel (TR) packaging, making it suitable for automated assembly processes.

FDMF6708N Features

The FDMF6708N incorporates several unique features that enhance its functionality and reliability:

• Half Bridge Configuration: The half-bridge output configuration is optimized for synchronous buck converters, providing efficient power delivery and control.
• Bootstrap Circuit: This feature ensures reliable operation by maintaining the gate voltage of the high-side MOSFET, even during high-frequency switching.
• Status Flag: The status flag provides real-time feedback on the device's operational state, facilitating effective monitoring and control.
• PWM Interface: The FDMF6708N supports PWM control, enabling precise regulation of output voltage and current.
• Moisture Sensitivity Level (MSL) 1: The device is classified as MSL 1, indicating unlimited exposure to moisture, which enhances its reliability in various environmental conditions.
• REACH Unaffected: The FDMF6708N complies with REACH regulations, ensuring it is free from harmful substances and suitable for global markets.

FDMF6708N Applications

The FDMF6708N is particularly well-suited for applications requiring high efficiency and power density, such as:

• Synchronous Buck Converters: The device's half-bridge configuration and PWM interface make it ideal for synchronous buck converters, where it can significantly improve efficiency and reduce power loss.
• High-Current Power Supplies: With a maximum output current of 50A per channel, the FDMF6708N is capable of handling high-current loads, making it suitable for power supplies in servers, telecommunications equipment, and other high-power applications.
• Industrial Automation: The robust design and wide operating voltage range make the FDMF6708N suitable for industrial automation systems, where reliability and efficiency are critical.

Conclusion of FDMF6708N

The FDMF6708N is a high-performance half-bridge driver IC that offers significant advantages over similar models. Its advanced DrMOS technology, half-bridge configuration, and low on-resistance contribute to high efficiency and low power loss, making it ideal for synchronous buck converters and high-current power supplies. The inclusion of a bootstrap circuit and status flag enhances its functionality and reliability, while its compliance with REACH regulations and MSL 1 classification ensures it meets global standards for environmental safety and reliability. Despite being marked as obsolete, the FDMF6708N remains a valuable component for applications requiring robust power management solutions.