FDMF6821B - onsemi

Manufacturer Part Number

FDMF6821B

Manufacturer

onsemi

Introduction

The FDMF6821B is a full half-bridge driver designed specifically for power management applications, optimized for synchronous buck converters.

Product Features and Performance

Integrated DrMOS and Power MOSFET technology

Supports half-bridge output configuration

Bootstrap circuit and diode emulation features

Fault protection against over temperature and shoot-through

UVLO (Under Voltage Lock Out) protection

Product Advantages

Compact 40-PowerTFQFN package increasing board space efficiency

High current output capability of up to 55A per channel

Broad operating temperature range from -40°C to 150°C

Key Technical Parameters

Rds On (Typ): 1Ohm LS, 1Ohm HS

Current Output / Channel: 55A

Voltage Supply: 4.5V ~ 5.5V

Voltage Load: 3V ~ 16V

Operating Temperature: -40°C ~ 150°C (TJ)

Quality and Safety Features

Advanced fault protection features ensure safe operation under abnormal conditions

UVLO feature protects the device and connected components from low voltage conditions

Compatibility

Logic and PWM interface compatibility allowing easy integration with control systems

Load type compatibility includes inductive, capacitive, and resistive loads

Application Areas

Primarily designed for synchronous buck converters in power management applications

Product Lifecycle

Obsolete status with no direct replacements or upgrades specified

Customers may need to look for newer alternatives or consult the manufacturer for future support options

Several Key Reasons to Choose This Product

High efficiency and reliability in power management across varying load conditions

Robust protection features safeguard the system integrity under fault conditions

High current capability suited for demanding applications

Compact design facilitating easier integration in space-constrained applications

Wide operable temperature range suitable for extreme environmental conditions