onsemi

FDMF5821DC

FDMF5821DC Description

The FDMF5821DC is a high-performance half bridge driver IC designed for synchronous buck converters. Manufactured by onsemi, this obsolete product is part of the PowerTrench® and SyncFET™ series, offering robust performance and reliability. It features a half bridge output configuration, making it suitable for inductive load types. The device operates within a supply voltage range of 4.5V to 5.5V and can handle load voltages from 4.5V to 16V. With a maximum output current of 60A per channel, the FDMF5821DC is designed for demanding power management applications.

FDMF5821DC Features

The FDMF5821DC boasts several advanced features that enhance its performance and functionality. It includes a bootstrap circuit for efficient gate drive, a latch function for improved control, and a status flag for monitoring operational status. The device employs UMOS technology, ensuring low on-state resistance (Rds On) with typical values of 470mOhm for the low side and 680mOhm for the high side. This results in reduced power losses and improved efficiency.

The FDMF5821DC also offers comprehensive fault protection, including over-temperature and under-voltage lockout (UVLO) features, ensuring safe operation under various conditions. The device is RoHS3 compliant and REACH unaffected, adhering to stringent environmental standards. It is packaged in a surface mount 31PQFN format, making it suitable for compact designs and easy integration into modern electronic systems.

FDMF5821DC Applications

The FDMF5821DC is ideal for applications requiring high efficiency and robust power management. Its primary application is in synchronous buck converters, where it can significantly enhance the performance of power delivery systems. The device's ability to handle high currents and its efficient design make it suitable for use in a variety of industries, including automotive, industrial, and consumer electronics.

Specific use cases include high-current power supplies, motor control systems, and high-efficiency power conversion modules. The FDMF5821DC's PWM interface allows for precise control and regulation, making it a versatile choice for a wide range of power management applications.

Conclusion of FDMF5821DC

The FDMF5821DC is a powerful half bridge driver IC that offers superior performance and reliability for synchronous buck converters. Its low Rds On, comprehensive fault protection, and advanced features make it a standout choice in its category. Despite being marked as obsolete, the FDMF5821DC remains a valuable component for applications requiring high efficiency and robust power management. Its compatibility with modern environmental standards and surface mount packaging further enhance its appeal. For designers and engineers seeking a reliable and efficient power management solution, the FDMF5821DC is an excellent option.