onsemi

FDMF6821C

FDMF6821C Description

The FDMF6821C is a half bridge driver IC designed for power management applications, specifically synchronous buck converters. Manufactured by onsemi, this device is part of the XS™ DrMOS series and features a robust set of specifications tailored for high-performance power delivery. The FDMF6821C operates within a supply voltage range of 4.5V to 5.5V and can handle load voltages from 3V to 16V. It is capable of delivering up to 50A of output current per channel, making it suitable for demanding applications that require efficient power conversion.

This IC is designed with a DrMOS technology, which integrates the MOSFET and driver into a single package, reducing the overall footprint and improving thermal performance. The device features a typical Rds(on) of 1Ω for both the low-side and high-side MOSFETs, ensuring minimal power loss and high efficiency. The FDMF6821C also includes a bootstrap circuit and a status flag, providing additional functionality for system monitoring and control.

The FDMF6821C is packaged in a 40PQFN surface mount package, which is ideal for compact designs and high-density PCB layouts. It is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and regulatory standards. The moisture sensitivity level (MSL) is rated at 1 (unlimited), making it suitable for a wide range of manufacturing environments.

FDMF6821C Features

• Half Bridge Configuration: The FDMF6821C is designed as a half bridge driver, making it ideal for applications requiring efficient switching between two power sources.
• Inductive Load Type: Optimized for inductive loads, this IC ensures stable and efficient power delivery in applications such as motor drives and power supplies.
• DrMOS Technology: The integration of the MOSFET and driver into a single package reduces the overall footprint and improves thermal performance.
• Wide Voltage Range: Operates within a supply voltage range of 4.5V to 5.5V and can handle load voltages from 3V to 16V, providing flexibility in various power management applications.
• High Output Current: Capable of delivering up to 50A of output current per channel, making it suitable for high-power applications.
• Low Rds(on): Typical Rds(on) of 1Ω for both low-side and high-side MOSFETs minimizes power loss and enhances efficiency.
• Bootstrap Circuit and Status Flag: Additional features for system monitoring and control, enhancing the reliability and functionality of the device.
• Surface Mount Packaging: The 40PQFN package is ideal for compact designs and high-density PCB layouts.
• Environmental Compliance: REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and regulatory standards.
• Moisture Sensitivity Level: MSL 1 (unlimited) rating makes it suitable for a wide range of manufacturing environments.

FDMF6821C Applications

The FDMF6821C is particularly well-suited for synchronous buck converters, which are commonly used in power management systems for their high efficiency and compact design. This IC is ideal for applications that require high current output and efficient power conversion, such as:

• Power Supplies: Efficient power delivery for various electronic devices.
• Motor Drives: Stable and efficient power management for motor control applications.
• Telecommunications: Reliable power management in telecom equipment.
• Industrial Equipment: High-power applications requiring efficient power conversion.

Conclusion of FDMF6821C

The FDMF6821C is a high-performance half bridge driver IC that offers a wide range of features and benefits for power management applications. Its DrMOS technology, wide voltage range, and high output current make it an ideal choice for synchronous buck converters and other demanding power management tasks. The inclusion of a bootstrap circuit and status flag enhances its functionality, while its surface mount packaging and environmental compliance make it suitable for modern, compact designs. Despite being marked as obsolete, the FDMF6821C remains a reliable and efficient solution for power management needs.